It seems that something weird is going on with the Leaderboard. Looks like some participants are cheating. @lilingling1993 and @lilingling1992 with the same score are the first candidates for that.
\nHowever, @noshakeplz and @guandongsheng888 from the 7th place with just 16 subs + @iuyyggghh from 8th place with 26 subs and no previous record on Kaggle seem suspicious as well, but can't say anything for sure.
\n@juliaelliott, could you look into that?
", "messages": [ { "id": 1236792, "postDate": "2021-03-13T12:59:23.407Z", "content": "It seems that something weird is going on with the Leaderboard. Looks like some participants are cheating. @lilingling1993 and @lilingling1992 with the same score are the first candidates for that.
\nHowever, @noshakeplz and @guandongsheng888 from the 7th place with just 16 subs + @iuyyggghh from 8th place with 26 subs and no previous record on Kaggle seem suspicious as well, but can't say anything for sure.
\n@juliaelliott, could you look into that?
", "rawMarkdown": "It seems that something weird is going on with the Leaderboard. Looks like some participants are cheating. @lilingling1993 and @lilingling1992 with the same score are the first candidates for that.\n\nHowever, @noshakeplz and @guandongsheng888 from the 7th place with just 16 subs + @iuyyggghh from 8th place with 26 subs and no previous record on Kaggle seem suspicious as well, but can't say anything for sure.\n\n@juliaelliott, could you look into that?", "votes": 38 }, { "id": 1237026, "postDate": "2021-03-13T16:55:42.730Z", "content": "Multiple accounts violations are removed at the end of the competition, as part of the final leaderboard verification and close process. We do this in order to enable better tracking of offending accounts and avoid further abuse made possible by mid-stream removals.
\nAlso, in the future, it’s recommended that you bring cases like this directly to kaggle.com/compliance rather than via public forum post. Our compliance team reviews and tracks the cases reported here and acts on those with sufficient evidence appropriately at the close of each competition. Centralizing reports this way helps ensure they do not have to chase down sporadic forum reports. We appreciate your participation and commitment to fair competitions!
", "rawMarkdown": "Multiple accounts violations are removed at the end of the competition, as part of the final leaderboard verification and close process. We do this in order to enable better tracking of offending accounts and avoid further abuse made possible by mid-stream removals.\n\nAlso, in the future, it’s recommended that you bring cases like this directly to kaggle.com/compliance rather than via public forum post. Our compliance team reviews and tracks the cases reported here and acts on those with sufficient evidence appropriately at the close of each competition. Centralizing reports this way helps ensure they do not have to chase down sporadic forum reports. We appreciate your participation and commitment to fair competitions!", "votes": 9, "replies": [ { "id": 1237060, "postDate": "2021-03-13T17:34:46.727Z", "content": "That's good to know. Is there any thought on a higher level of authenticating people? Just curious.
", "rawMarkdown": "That's good to know. Is there any thought on a higher level of authenticating people? Just curious.", "votes": 1 }, { "id": 1250549, "postDate": "2021-03-24T05:50:56.513Z", "content": "@lilingling1992 @lilingling1993 has cheated for sure, hope you can remove them and their partners
", "rawMarkdown": "@lilingling1992 @lilingling1993 has cheated for sure, hope you can remove them and their partners", "votes": 1 } ] }, { "id": 1252607, "postDate": "2021-03-25T20:45:09.863Z", "content": "There were cases of non cheaters achieving prize or even winning their first competition. In China or Japan for instance there are ML competition platforms where people can train before entering Kaggle competitions.
\nTL;DR Good performance in few tries is not an indication of cheating.
", "rawMarkdown": "There were cases of non cheaters achieving prize or even winning their first competition. In China or Japan for instance there are ML competition platforms where people can train before entering Kaggle competitions.\n\nTL;DR Good performance in few tries is not an indication of cheating.", "votes": 10, "replies": [ { "id": 1256412, "postDate": "2021-03-29T20:49:58.180Z", "content": "Good performance + few tries = God-like local validation 😄
", "rawMarkdown": "Good performance + few tries = God-like local validation 😄", "votes": -1 } ] }, { "id": 1260455, "postDate": "2021-04-02T06:15:14.227Z", "content": "So it seems lilinglings are still strong on the LB.
", "rawMarkdown": "So it seems lilinglings are still strong on the LB. ", "votes": 6, "replies": [ { "id": 1260471, "postDate": "2021-04-02T06:30:07.973Z", "content": "Perhaps I was wrong 🤔 If that's the case, I apologize.
", "rawMarkdown": "Perhaps I was wrong 🤔 If that's the case, I apologize. " }, { "id": 1260481, "postDate": "2021-04-02T06:42:01.700Z", "content": "I highly doubt it but who knows
", "rawMarkdown": "I highly doubt it but who knows", "votes": 1 }, { "id": 1260531, "postDate": "2021-04-02T07:46:36.807Z", "content": "Sorry, but it isn't only you that owes an apology. @dnnpy1 and I were literally \"attacked\" with so many downvotes and criticism ( @verracodeguacas and @klawensliu to name a few) just for sharing our opinion that you could be wrong. I'd said \"Would a subsequent apology make up for the moral offense and damage already inflicted by the post?\" It turns out they (or at least part of these people) weren't cheating.
", "rawMarkdown": "Sorry, but it isn't only you that owes an apology. @dnnpy1 and I were literally \"attacked\" with so many downvotes and criticism ( @verracodeguacas and @klawensliu to name a few) just for sharing our opinion that you could be wrong. I'd said \"Would a subsequent apology make up for the moral offense and damage already inflicted by the post?\" It turns out they (or at least part of these people) weren't cheating.", "votes": -2 }, { "id": 1260534, "postDate": "2021-04-02T07:52:16.893Z", "content": "You are not wrong, if lilingling1992 and 1993 didn't submit a same file, they can't be proved cheating by the staffs, Kaggle really should use some extra methods to ensure this.
", "rawMarkdown": "You are not wrong, if lilingling1992 and 1993 didn't submit a same file, they can't be proved cheating by the staffs, Kaggle really should use some extra methods to ensure this.", "votes": 1 }, { "id": 1260563, "postDate": "2021-04-02T08:21:15.853Z", "content": "Well honestly, they have the same name, and they submitted the same score. What a coincidence… Matching csv submissions is not so easy in this competition, for example you can just cut out 50% of your long-tail boxes and get the same score.
", "rawMarkdown": "Well honestly, they have the same name, and they submitted the same score. What a coincidence... Matching csv submissions is not so easy in this competition, for example you can just cut out 50% of your long-tail boxes and get the same score.", "votes": 2 }, { "id": 1260589, "postDate": "2021-04-02T08:42:03.503Z", "content": "They were pointed out and complained about and even Kaggle staff said they'd care about the issue, but they're still on LB. Apparently, the only way for everybody to feel fine is to require a document verification for such competitions.
", "rawMarkdown": "They were pointed out and complained about and even Kaggle staff said they'd care about the issue, but they're still on LB. Apparently, the only way for everybody to feel fine is to require a document verification for such competitions.", "votes": -2 }, { "id": 1260728, "postDate": "2021-04-02T11:27:38.303Z", "content": "@yusufchabuk I don't really understand why you are such a strong advocate for this individual(s). It's very confusing. People put in massive amounts of time to compete and only want to know that they weren't cheated and you don't appear to have competed. I'm really confused why you are taking up for them with such strong personal interest. Especially when you pointed out in a previous post that you aren't good enough to participate. Then what makes you an expert on why or how someone might cheat on Kaggle? Seriously, I'm really curious about this.
", "rawMarkdown": "@yusufchabuk I don't really understand why you are such a strong advocate for this individual(s). It's very confusing. People put in massive amounts of time to compete and only want to know that they weren't cheated and you don't appear to have competed. I'm really confused why you are taking up for them with such strong personal interest. Especially when you pointed out in a previous post that you aren't good enough to participate. Then what makes you an expert on why or how someone might cheat on Kaggle? Seriously, I'm really curious about this. ", "votes": 1 }, { "id": 1260749, "postDate": "2021-04-02T11:46:49.933Z", "content": "@crained I'm not an advocate (let alone strong) for anybody. I guess the whole confusion arises from this conviction that one must be an advocate of a person in order to state that it is unjust to accuse others without any solid evidence. You yourself suggested \"another layer of authentication like passport or license\" below (and I upvoted your suggestion ). If you're so sure these people are guilty (you sound so and sorry if I'm wrong), why would you suggest it? Plus, the only strong evidence they present is similar (almost identical) usernames. Why would a person so high in LB make such a stupid mistake and use almost identical usernames? But, if your point is \"you aren't even good enough to participate in this competition, so I don't care about your opinion\", that's another story. Then, there would be nothing to discuss or debate. ✌️
", "rawMarkdown": "@crained I'm not an advocate (let alone strong) for anybody. I guess the whole confusion arises from this conviction that one must be an advocate of a person in order to state that it is unjust to accuse others without any solid evidence. You yourself suggested \"another layer of authentication like passport or license\" below (and I upvoted your suggestion ). If you're so sure these people are guilty (you sound so and sorry if I'm wrong), why would you suggest it? Plus, the only strong evidence they present is similar (almost identical) usernames. Why would a person so high in LB make such a stupid mistake and use almost identical usernames? But, if your point is \"you aren't even good enough to participate in this competition, so I don't care about your opinion\", that's another story. Then, there would be nothing to discuss or debate. ✌️" }, { "id": 1260754, "postDate": "2021-04-02T11:49:55.533Z", "content": "Yeah and they registered the same day… I checked..
", "rawMarkdown": " Yeah and they registered the same day... I checked..", "votes": 3 }, { "id": 1260760, "postDate": "2021-04-02T11:54:22.173Z", "content": "There are also a few deleted users. That is also strange
", "rawMarkdown": "There are also a few deleted users. That is also strange", "votes": 2 }, { "id": 1260770, "postDate": "2021-04-02T11:59:04.100Z", "content": "@hannes82 I've also checked it now after I read your comment. There's a 40-min interval only. So, it's likely they're the same person. And, it's my mistake to assume they wouldn't make such a stupid mistake of using almost identical logins. However, that doesn't change my viewpoint. I'm not defending a particular user. It's all about presenting solid evidence. Apparently, there was none and Kaggle decided to keep them on LB. (Or, maybe I misinterpret Kaggle's not removing and even banning them.)
", "rawMarkdown": "@hannes82 I've also checked it now after I read your comment. There's a 40-min interval only. So, it's likely they're the same person. And, it's my mistake to assume they wouldn't make such a stupid mistake of using almost identical logins. However, that doesn't change my viewpoint. I'm not defending a particular user. It's all about presenting solid evidence. Apparently, there was none and Kaggle decided to keep them on LB. (Or, maybe I misinterpret Kaggle's not removing and even banning them.) " }, { "id": 1260785, "postDate": "2021-04-02T12:09:32.777Z", "content": "@yusufchabuk I wasn't mentioning the \"you aren't even good enough to participate\" to be mean. Only to point out that there are various reasons someone would cheat. Competing would bring that to light. For example, we are limited on daily submissions. Those are really precious for some people to test how they are doing with the CV vs the leaderboard. If you had multiple accounts you could get over that submission limit. I'm sure there are other various reasons but that is one of the ones that stuck out to me.
\nI do believe that Kaggle should add another layer of authentication. You see this on websites where there are much smaller stakes who want to verify users with IDs, phone numbers, etc. Even just for MFA.
\nI think, in the end, there are a lot of people who are incredibly passionate about Kaggle and they see injustice too. My final thought would be to put in 10-20 hours a week for two months on a competition and come back and read all of this and see if you might have a different view.
", "rawMarkdown": "@yusufchabuk I wasn't mentioning the \"you aren't even good enough to participate\" to be mean. Only to point out that there are various reasons someone would cheat. Competing would bring that to light. For example, we are limited on daily submissions. Those are really precious for some people to test how they are doing with the CV vs the leaderboard. If you had multiple accounts you could get over that submission limit. I'm sure there are other various reasons but that is one of the ones that stuck out to me. \n\nI do believe that Kaggle should add another layer of authentication. You see this on websites where there are much smaller stakes who want to verify users with IDs, phone numbers, etc. Even just for MFA. \n\nI think, in the end, there are a lot of people who are incredibly passionate about Kaggle and they see injustice too. My final thought would be to put in 10-20 hours a week for two months on a competition and come back and read all of this and see if you might have a different view. " }, { "id": 1260796, "postDate": "2021-04-02T12:17:37.843Z", "content": "@crained I agree with everything you say here. I'd certainly have a different opinion if I'd participated in this competition. That I also agree with, but I'm not sure if I'd be \"right\" then. I certainly wouldn't be able to stay \"objective\" being a participant in the competition. But, I see your point and I'll repeat my agreement with your suggestion about adding another layer of authentication like on many other websites. ✌️
", "rawMarkdown": "@crained I agree with everything you say here. I'd certainly have a different opinion if I'd participated in this competition. That I also agree with, but I'm not sure if I'd be \"right\" then. I certainly wouldn't be able to stay \"objective\" being a participant in the competition. But, I see your point and I'll repeat my agreement with your suggestion about adding another layer of authentication like on many other websites. ✌️", "votes": 1 } ] }, { "id": 1260905, "postDate": "2021-04-02T14:17:06.273Z", "content": "Can anybody explain how it is possible to jump by 300-600 positions between the public and the private LB? I am just curious how to achieve such a great improvement.
", "rawMarkdown": "Can anybody explain how it is possible to jump by 300-600 positions between the public and the private LB? I am just curious how to achieve such a great improvement.", "votes": 3, "replies": [ { "id": 1260916, "postDate": "2021-04-02T14:26:21.853Z", "content": "It says \"This leaderboard is calculated with approximately 10% of the test data. The final results will be based on the other 90%, so the final standings may be different.\" on the LB tab. Maybe that is the reason..
", "rawMarkdown": "It says \"This leaderboard is calculated with approximately 10% of the test data. The final results will be based on the other 90%, so the final standings may be different.\" on the LB tab. Maybe that is the reason.." }, { "id": 1260934, "postDate": "2021-04-02T14:43:07.073Z", "content": "So, what is the answer? Because what you referred to is a known fact. Was it matter of pure randomness, or optimization of a wisely devised objective function that assumed the right content of the private test dataset? In my opinion, such a dramatic difference between the private and public dataset is extremely difficult to handle. However, maybe I am missing knowledge about some methods that help to deal with such problems. I would like to learn them.
", "rawMarkdown": "So, what is the answer? Because what you referred to is a known fact. Was it matter of pure randomness, or optimization of a wisely devised objective function that assumed the right content of the private test dataset? In my opinion, such a dramatic difference between the private and public dataset is extremely difficult to handle. However, maybe I am missing knowledge about some methods that help to deal with such problems. I would like to learn them.", "votes": 2 }, { "id": 1260954, "postDate": "2021-04-02T14:55:26.320Z", "content": "@mikecho if you search \"shakeup\" there are good conversations on this. This is why having a lot of confidence in your CV is important. If you read the conversations around those who have scored well, the one thing they say is their CV was close to the leaderboard and right before the competition ends they can choose the submission they want.
", "rawMarkdown": "@mikecho if you search \"shakeup\" there are good conversations on this. This is why having a lot of confidence in your CV is important. If you read the conversations around those who have scored well, the one thing they say is their CV was close to the leaderboard and right before the competition ends they can choose the submission they want.", "votes": 3 }, { "id": 1260976, "postDate": "2021-04-02T15:16:30.680Z", "content": "thanks, I will have a look!
", "rawMarkdown": "thanks, I will have a look!", "votes": 2 }, { "id": 1260987, "postDate": "2021-04-02T15:28:23.643Z", "content": "It's one of the tough lessons I've had to learn. I'm working on a different competition now and have a hard time getting my CV and the LB to lineup and it's very concerning that once my model is compared to the private dataset I may have overfit or overconfidence. It's an area I've really been trying to increase my skills.
", "rawMarkdown": "It's one of the tough lessons I've had to learn. I'm working on a different competition now and have a hard time getting my CV and the LB to lineup and it's very concerning that once my model is compared to the private dataset I may have overfit or overconfidence. It's an area I've really been trying to increase my skills." } ] }, { "id": 1236800, "postDate": "2021-03-13T13:09:45.530Z", "content": "@ivanpan I found it very curious too. There are a bunch of people first time ever and yet top 20. Seems really curious.
", "rawMarkdown": "@ivanpan I found it very curious too. There are a bunch of people first time ever and yet top 20. Seems really curious. ", "votes": 3, "replies": [ { "id": 1236802, "postDate": "2021-03-13T13:12:35.747Z", "content": "Genuinely hope that if some teams are actually using fake accounts to increase the amount of daily subs, they will be removed from the LB/banned from Kaggle.
\nBut it's up to the admins now.
", "rawMarkdown": "Genuinely hope that if some teams are actually using fake accounts to increase the amount of daily subs, they will be removed from the LB/banned from Kaggle. \n\nBut it's up to the admins now. ", "votes": 1 }, { "id": 1236818, "postDate": "2021-03-13T13:32:00.553Z", "content": "Agreed. Maybe Kaggle needs another layer of authentication like passport or license.
", "rawMarkdown": "Agreed. Maybe Kaggle needs another layer of authentication like passport or license. ", "votes": -1 }, { "id": 1255943, "postDate": "2021-03-29T11:41:22.280Z", "content": "I agree. For competitions with such big prizes that should be considered as an option.
", "rawMarkdown": "I agree. For competitions with such big prizes that should be considered as an option.", "votes": 1 } ] }, { "id": 1260942, "postDate": "2021-04-02T14:47:03.593Z", "content": "@ivanpan not sure if this means anything, but the header says “1289 teams” but there’s actually 1325 teams on the leaderboard. So it could just be a timing thing with the leaderboard. Just my guess.
", "rawMarkdown": "@ivanpan not sure if this means anything, but the header says “1289 teams” but there’s actually 1325 teams on the leaderboard. So it could just be a timing thing with the leaderboard. Just my guess.", "replies": [ { "id": 1260950, "postDate": "2021-04-02T14:52:22.060Z", "content": "@danshan That's because 36 are already deleted on the list. and it says [deleted] next to their names.
", "rawMarkdown": "@danshan That's because 36 are already deleted on the list. and it says [deleted] next to their names." }, { "id": 1260955, "postDate": "2021-04-02T14:55:59.473Z", "content": "How were they deleted if there are 1325?
", "rawMarkdown": "How were they deleted if there are 1325?" }, { "id": 1260958, "postDate": "2021-04-02T14:57:51.927Z", "content": "@yusufchabuk I count only 12 \"Deleted\" users on the LB. So it still doesn't seem to add up. But then again, I could be wrong :)
", "rawMarkdown": "@yusufchabuk I count only 12 \"Deleted\" users on the LB. So it still doesn't seem to add up. But then again, I could be wrong :)" }, { "id": 1260959, "postDate": "2021-04-02T14:58:15.200Z", "content": "@coreacasa Well.. They're still in this 1325 on LB, but it says [deleted] and the accounts are indeed deleted. You can check it for yourself. I can't share a screenshot, unfortunately. For example, position #39
", "rawMarkdown": "@coreacasa Well.. They're still in this 1325 on LB, but it says [deleted] and the accounts are indeed deleted. You can check it for yourself. I can't share a screenshot, unfortunately. For example, position #39" }, { "id": 1260971, "postDate": "2021-04-02T15:08:49.100Z", "content": "I just wonder what would happen if [Deleted] users were in positions 4 to 12 and not scattered on the LeaderBoard.
", "rawMarkdown": "I just wonder what would happen if [Deleted] users were in positions 4 to 12 and not scattered on the LeaderBoard." } ] }, { "id": 1252712, "postDate": "2021-03-26T00:30:28.403Z", "content": "I myself am not even good enough to participate in such competitions, but I'd feel a little offended if my name were exposed as a potential cheater like in this post. I understand the motivation of the owner of the post and, yes, it's, to some extent, justified, but it may also be really offensive if a participant is wrongly accused. Would a subsequent apology make up for the moral offense and damage already inflicted by the post?
", "rawMarkdown": "I myself am not even good enough to participate in such competitions, but I'd feel a little offended if my name were exposed as a potential cheater like in this post. I understand the motivation of the owner of the post and, yes, it's, to some extent, justified, but it may also be really offensive if a participant is wrongly accused. Would a subsequent apology make up for the moral offense and damage already inflicted by the post?", "votes": -3, "replies": [ { "id": 1252719, "postDate": "2021-03-26T00:53:44.047Z", "content": "Whatever dude. They're clearly cheating. Apologies won't be needed.
", "rawMarkdown": "Whatever dude. They're clearly cheating. Apologies won't be needed." }, { "id": 1252731, "postDate": "2021-03-26T01:23:57.583Z", "content": "\n\nWhatever dude.
\n
I normally ignore \"whatever dudes\", but I'll make an exception this time.
\n\n\nThey're clearly cheating.
\n
Well.. You're not the judge. ;)
\n\n\nApologies won't be needed.
\n
If you read carefully, you'll see my comment isn't about this specific case, but rather a general statement.
\n✌️
Do you have eyes? They use the same ID
", "rawMarkdown": "Do you have eyes? They use the same ID", "votes": -3 }, { "id": 1255870, "postDate": "2021-03-29T09:42:50.770Z", "content": "I'll ask you the same question: Do you have eyes? 😎 Have you really read my comment? Besides, you probably mean lilingling1993 and lilingling1992 by \"the same ID\"? Yet, noshakeplz, guandongsheng888, iuyyggghh do not seem very similar to me. Moreover, even if they were \"similar\", that wouldn't mean anything. Anybody can create a similar username, especially if they want to follow a smear tactic. I'm not saying they're not cheating, but that isn't proof by itself.
", "rawMarkdown": "I'll ask you the same question: Do you have eyes? 😎 Have you really read my comment? Besides, you probably mean lilingling1993 and lilingling1992 by \"the same ID\"? Yet, noshakeplz, guandongsheng888, iuyyggghh do not seem very similar to me. Moreover, even if they were \"similar\", that wouldn't mean anything. Anybody can create a similar username, especially if they want to follow a smear tactic. I'm not saying they're not cheating, but that isn't proof by itself.", "votes": -1 }, { "id": 1260537, "postDate": "2021-04-02T07:54:16.700Z", "content": "Yes, only lilingling1993 and lilingling1992, I think you know they cheated.
", "rawMarkdown": "Yes, only lilingling1993 and lilingling1992, I think you know they cheated.", "votes": -2 }, { "id": 1260540, "postDate": "2021-04-02T08:00:43.337Z", "rawMarkdown": "", "votes": -5, "isDeleted": true }, { "id": 1260568, "postDate": "2021-04-02T08:27:23.617Z", "content": "Whatever dude.
@lilingling1992 and 1993 definately cheat
", "rawMarkdown": "@lilingling1992 and 1993 definately cheat" }, { "id": 1260869, "postDate": "2021-04-02T13:26:54.490Z", "content": "(copy Psi) and also… \"So it seems [Deleted] users are still strong on the LB\"
", "rawMarkdown": "(copy Psi) and also... \"So it seems [Deleted] users are still strong on the LB\"" }, { "id": 1256509, "postDate": "2021-03-30T00:41:31.377Z", "content": "If you don't have a \"Fork of fork of fork of fork of fork\" notebook. You're probably cheating.
", "rawMarkdown": "If you don't have a \"Fork of fork of fork of fork of fork\" notebook. You're probably cheating." }, { "id": 1251706, "postDate": "2021-03-25T03:47:13.510Z", "content": "I've seen this happening in various other competitions as well. But I have also noticed people being removed from the leader board too. Surely something that needs to be looked into.
", "rawMarkdown": "I've seen this happening in various other competitions as well. But I have also noticed people being removed from the leader board too. Surely something that needs to be looked into." }, { "id": 1251659, "postDate": "2021-03-25T02:15:09.453Z", "content": "Don't worry! If they have been cheating, they will be removed after the competitions ends
", "rawMarkdown": "Don't worry! If they have been cheating, they will be removed after the competitions ends" }, { "id": 1237180, "postDate": "2021-03-13T20:51:10.157Z", "content": "What a reason overfit on LB with 10% of full test
", "rawMarkdown": "What a reason overfit on LB with 10% of full test" }, { "id": 1252266, "postDate": "2021-03-25T14:49:27.600Z", "rawMarkdown": "", "votes": -8, "isDeleted": true, "replies": [ { "id": 1252308, "postDate": "2021-03-25T15:16:45.913Z", "content": "Hi Selman. I think I see your point but there is something you are missing. Sometimes it's good to share such posts publicly because this helps others (especially newcomers) to learn/notice that there are indeed such rules in each kaggle competition, and not obeying these always end up with as you losing all your effort by being wiped out from the competition leaderboard.
\nAfter each competition, such cheaters are being removed by the kaggle team but most of the participants can easily miss this process since it takes a couple of days for the removal and no announcement/warning being posted at all.
", "rawMarkdown": "Hi Selman. I think I see your point but there is something you are missing. Sometimes it's good to share such posts publicly because this helps others (especially newcomers) to learn/notice that there are indeed such rules in each kaggle competition, and not obeying these always end up with as you losing all your effort by being wiped out from the competition leaderboard. \n\nAfter each competition, such cheaters are being removed by the kaggle team but most of the participants can easily miss this process since it takes a couple of days for the removal and no announcement/warning being posted at all.", "votes": 6 }, { "id": 1252373, "postDate": "2021-03-25T16:22:12.280Z", "rawMarkdown": "", "votes": -3, "isDeleted": true }, { "id": 1252400, "postDate": "2021-03-25T16:46:39.877Z", "content": "Except that those who are working fairly have limited daily submissions. Those who cheat can just keep adding users and submissions and possibly hide behind those to get more of an advantage. That's the part that is frustrating and unfair. Who knows who the real user is, those two usernames could be a mask for a legit user on the board who is getting unfair levels of submissions. Part of the competition is building your models and being smart about your approach and levels for which you can submit.
", "rawMarkdown": "Except that those who are working fairly have limited daily submissions. Those who cheat can just keep adding users and submissions and possibly hide behind those to get more of an advantage. That's the part that is frustrating and unfair. Who knows who the real user is, those two usernames could be a mask for a legit user on the board who is getting unfair levels of submissions. Part of the competition is building your models and being smart about your approach and levels for which you can submit. " }, { "id": 1252413, "postDate": "2021-03-25T17:08:09.173Z", "content": "\n\nThis affects the motivation of the race negatively and causes conflicts.
\n
I don't see why such a post affects you negatively unless you are from those (probably) cheating accounts. On the contrary, I know that some of these cheating accounts will be removed and others who worked fairly will get the ranking they deserved. This is something positive for me.
\n\n\nObjections must be with evidents at the end of the race
\n
I also don't see why objections must be at the end? The author of this thread has really strong arguments. And if these accounts were really innocent, I would expect them to defended themselves to correct the claims made here for the last 12 days.
\nAs you said, these are my opinions and you have yours. It seems to me that you are more sensitive to such posts/sharings. Hope you get used to them so that you won't be affected negatively by seeing them in the future because it's quite likely that you'll see them in other competitions too.
", "rawMarkdown": "> This affects the motivation of the race negatively and causes conflicts.\n\nI don't see why such a post affects you negatively unless you are from those (probably) cheating accounts. On the contrary, I know that some of these cheating accounts will be removed and others who worked fairly will get the ranking they deserved. This is something positive for me.\n\n> Objections must be with evidents at the end of the race\n\nI also don't see why objections must be at the end? The author of this thread has really strong arguments. And if these accounts were really innocent, I would expect them to defended themselves to correct the claims made here for the last 12 days.\n\nAs you said, these are my opinions and you have yours. It seems to me that you are more sensitive to such posts/sharings. Hope you get used to them so that you won't be affected negatively by seeing them in the future because it's quite likely that you'll see them in other competitions too.\n", "votes": 5 }, { "id": 1252526, "postDate": "2021-03-25T18:44:33.703Z", "content": "I actually expressed my general opinion. The people you mentioned may have been a cheaters and I have no purporse of defending them. As I mentioned, Kaggle needs to take a more systematic approach to the cheat claims presented. Maybe not here, but the allegations can sometimes be biased. That's all the thought behind the first short sentence I wrote. I'm sorry brother, maybe I'm not well understood because my English is poor. (Fatih kardeşim başarılar.)
", "rawMarkdown": "I actually expressed my general opinion. The people you mentioned may have been a cheaters and I have no purporse of defending them. As I mentioned, Kaggle needs to take a more systematic approach to the cheat claims presented. Maybe not here, but the allegations can sometimes be biased. That's all the thought behind the first short sentence I wrote. I'm sorry brother, maybe I'm not well understood because my English is poor. (Fatih kardeşim başarılar.)", "votes": 1 }, { "id": 1252711, "postDate": "2021-03-26T00:29:10.470Z", "rawMarkdown": "", "votes": -4, "isDeleted": true }, { "id": 1252874, "postDate": "2021-03-26T06:15:39.043Z", "rawMarkdown": "", "votes": -3, "isDeleted": true } ] }, { "id": 1251325, "postDate": "2021-03-24T17:18:17.517Z", "rawMarkdown": "", "votes": -15, "isDeleted": true, "replies": [ { "id": 1251680, "postDate": "2021-03-25T02:57:29.070Z", "content": "Yes, you really should focus on the competition.
", "rawMarkdown": "Yes, you really should focus on the competition.", "votes": 1 }, { "id": 1252942, "postDate": "2021-03-26T07:59:12.947Z", "content": "I am aware you are doing irony. Anyway… You didn't understand me.
", "rawMarkdown": "I am aware you are doing irony. Anyway... You didn't understand me." } ] }, { "id": 1251323, "postDate": "2021-03-24T17:16:03.537Z", "rawMarkdown": "", "isDeleted": true } ], "comments": [ { "id": 1237026, "author_name": "Julia Elliott", "author_url": "", "post_date": "2021-03-13T16:55:42.730000", "content": "Multiple accounts violations are removed at the end of the competition, as part of the final leaderboard verification and close process. We do this in order to enable better tracking of offending accounts and avoid further abuse made possible by mid-stream removals.
\nAlso, in the future, it’s recommended that you bring cases like this directly to kaggle.com/compliance rather than via public forum post. Our compliance team reviews and tracks the cases reported here and acts on those with sufficient evidence appropriately at the close of each competition. Centralizing reports this way helps ensure they do not have to chase down sporadic forum reports. We appreciate your participation and commitment to fair competitions!
", "votes": 9, "replies": [ { "id": 1237060, "author_name": "Charlie Craine", "author_url": "", "post_date": "2021-03-13T17:34:46.727000", "content": "That's good to know. Is there any thought on a higher level of authenticating people? Just curious.
", "votes": 1, "replies": [] }, { "id": 1250549, "author_name": "Shichang Liu", "author_url": "", "post_date": "2021-03-24T05:50:56.513000", "content": "@lilingling1992 @lilingling1993 has cheated for sure, hope you can remove them and their partners
", "votes": 1, "replies": [] } ] }, { "id": 1252607, "author_name": "CPMP", "author_url": "", "post_date": "2021-03-25T20:45:09.863000", "content": "There were cases of non cheaters achieving prize or even winning their first competition. In China or Japan for instance there are ML competition platforms where people can train before entering Kaggle competitions.
\nTL;DR Good performance in few tries is not an indication of cheating.
", "votes": 10, "replies": [ { "id": 1256412, "author_name": "Chan Kha Vu", "author_url": "", "post_date": "2021-03-29T20:49:58.180000", "content": "Good performance + few tries = God-like local validation 😄
", "votes": -1, "replies": [] } ] }, { "id": 1260455, "author_name": "Psi", "author_url": "", "post_date": "2021-04-02T06:15:14.227000", "content": "So it seems lilinglings are still strong on the LB.
", "votes": 6, "replies": [ { "id": 1260471, "author_name": "Ivan Panshin", "author_url": "", "post_date": "2021-04-02T06:30:07.973000", "content": "Perhaps I was wrong 🤔 If that's the case, I apologize.
", "votes": 0, "replies": [] }, { "id": 1260481, "author_name": "Psi", "author_url": "", "post_date": "2021-04-02T06:42:01.700000", "content": "I highly doubt it but who knows
", "votes": 1, "replies": [] }, { "id": 1260531, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-04-02T07:46:36.807000", "content": "Sorry, but it isn't only you that owes an apology. @dnnpy1 and I were literally \"attacked\" with so many downvotes and criticism ( @verracodeguacas and @klawensliu to name a few) just for sharing our opinion that you could be wrong. I'd said \"Would a subsequent apology make up for the moral offense and damage already inflicted by the post?\" It turns out they (or at least part of these people) weren't cheating.
", "votes": -2, "replies": [] }, { "id": 1260534, "author_name": "Shichang Liu", "author_url": "", "post_date": "2021-04-02T07:52:16.893000", "content": "You are not wrong, if lilingling1992 and 1993 didn't submit a same file, they can't be proved cheating by the staffs, Kaggle really should use some extra methods to ensure this.
", "votes": 1, "replies": [] }, { "id": 1260563, "author_name": "Psi", "author_url": "", "post_date": "2021-04-02T08:21:15.853000", "content": "Well honestly, they have the same name, and they submitted the same score. What a coincidence… Matching csv submissions is not so easy in this competition, for example you can just cut out 50% of your long-tail boxes and get the same score.
", "votes": 2, "replies": [] }, { "id": 1260589, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-04-02T08:42:03.503000", "content": "They were pointed out and complained about and even Kaggle staff said they'd care about the issue, but they're still on LB. Apparently, the only way for everybody to feel fine is to require a document verification for such competitions.
", "votes": -2, "replies": [] }, { "id": 1260728, "author_name": "Charlie Craine", "author_url": "", "post_date": "2021-04-02T11:27:38.303000", "content": "@yusufchabuk I don't really understand why you are such a strong advocate for this individual(s). It's very confusing. People put in massive amounts of time to compete and only want to know that they weren't cheated and you don't appear to have competed. I'm really confused why you are taking up for them with such strong personal interest. Especially when you pointed out in a previous post that you aren't good enough to participate. Then what makes you an expert on why or how someone might cheat on Kaggle? Seriously, I'm really curious about this.
", "votes": 1, "replies": [] }, { "id": 1260749, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-04-02T11:46:49.933000", "content": "@crained I'm not an advocate (let alone strong) for anybody. I guess the whole confusion arises from this conviction that one must be an advocate of a person in order to state that it is unjust to accuse others without any solid evidence. You yourself suggested \"another layer of authentication like passport or license\" below (and I upvoted your suggestion ). If you're so sure these people are guilty (you sound so and sorry if I'm wrong), why would you suggest it? Plus, the only strong evidence they present is similar (almost identical) usernames. Why would a person so high in LB make such a stupid mistake and use almost identical usernames? But, if your point is \"you aren't even good enough to participate in this competition, so I don't care about your opinion\", that's another story. Then, there would be nothing to discuss or debate. ✌️
", "votes": 0, "replies": [] }, { "id": 1260754, "author_name": "Hannes Öhler", "author_url": "", "post_date": "2021-04-02T11:49:55.533000", "content": "Yeah and they registered the same day… I checked..
", "votes": 3, "replies": [] }, { "id": 1260760, "author_name": "beluga", "author_url": "", "post_date": "2021-04-02T11:54:22.173000", "content": "There are also a few deleted users. That is also strange
", "votes": 2, "replies": [] }, { "id": 1260770, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-04-02T11:59:04.100000", "content": "@hannes82 I've also checked it now after I read your comment. There's a 40-min interval only. So, it's likely they're the same person. And, it's my mistake to assume they wouldn't make such a stupid mistake of using almost identical logins. However, that doesn't change my viewpoint. I'm not defending a particular user. It's all about presenting solid evidence. Apparently, there was none and Kaggle decided to keep them on LB. (Or, maybe I misinterpret Kaggle's not removing and even banning them.)
", "votes": 0, "replies": [] }, { "id": 1260785, "author_name": "Charlie Craine", "author_url": "", "post_date": "2021-04-02T12:09:32.777000", "content": "@yusufchabuk I wasn't mentioning the \"you aren't even good enough to participate\" to be mean. Only to point out that there are various reasons someone would cheat. Competing would bring that to light. For example, we are limited on daily submissions. Those are really precious for some people to test how they are doing with the CV vs the leaderboard. If you had multiple accounts you could get over that submission limit. I'm sure there are other various reasons but that is one of the ones that stuck out to me.
\nI do believe that Kaggle should add another layer of authentication. You see this on websites where there are much smaller stakes who want to verify users with IDs, phone numbers, etc. Even just for MFA.
\nI think, in the end, there are a lot of people who are incredibly passionate about Kaggle and they see injustice too. My final thought would be to put in 10-20 hours a week for two months on a competition and come back and read all of this and see if you might have a different view.
", "votes": 0, "replies": [] }, { "id": 1260796, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-04-02T12:17:37.843000", "content": "@crained I agree with everything you say here. I'd certainly have a different opinion if I'd participated in this competition. That I also agree with, but I'm not sure if I'd be \"right\" then. I certainly wouldn't be able to stay \"objective\" being a participant in the competition. But, I see your point and I'll repeat my agreement with your suggestion about adding another layer of authentication like on many other websites. ✌️
", "votes": 1, "replies": [] } ] }, { "id": 1260905, "author_name": "Michał Choiński", "author_url": "", "post_date": "2021-04-02T14:17:06.273000", "content": "Can anybody explain how it is possible to jump by 300-600 positions between the public and the private LB? I am just curious how to achieve such a great improvement.
", "votes": 3, "replies": [ { "id": 1260916, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-04-02T14:26:21.853000", "content": "It says \"This leaderboard is calculated with approximately 10% of the test data. The final results will be based on the other 90%, so the final standings may be different.\" on the LB tab. Maybe that is the reason..
", "votes": 0, "replies": [] }, { "id": 1260934, "author_name": "Michał Choiński", "author_url": "", "post_date": "2021-04-02T14:43:07.073000", "content": "So, what is the answer? Because what you referred to is a known fact. Was it matter of pure randomness, or optimization of a wisely devised objective function that assumed the right content of the private test dataset? In my opinion, such a dramatic difference between the private and public dataset is extremely difficult to handle. However, maybe I am missing knowledge about some methods that help to deal with such problems. I would like to learn them.
", "votes": 2, "replies": [] }, { "id": 1260954, "author_name": "Charlie Craine", "author_url": "", "post_date": "2021-04-02T14:55:26.320000", "content": "@mikecho if you search \"shakeup\" there are good conversations on this. This is why having a lot of confidence in your CV is important. If you read the conversations around those who have scored well, the one thing they say is their CV was close to the leaderboard and right before the competition ends they can choose the submission they want.
", "votes": 3, "replies": [] }, { "id": 1260976, "author_name": "Michał Choiński", "author_url": "", "post_date": "2021-04-02T15:16:30.680000", "content": "thanks, I will have a look!
", "votes": 2, "replies": [] }, { "id": 1260987, "author_name": "Charlie Craine", "author_url": "", "post_date": "2021-04-02T15:28:23.643000", "content": "It's one of the tough lessons I've had to learn. I'm working on a different competition now and have a hard time getting my CV and the LB to lineup and it's very concerning that once my model is compared to the private dataset I may have overfit or overconfidence. It's an area I've really been trying to increase my skills.
", "votes": 0, "replies": [] } ] }, { "id": 1236800, "author_name": "Charlie Craine", "author_url": "", "post_date": "2021-03-13T13:09:45.530000", "content": "@ivanpan I found it very curious too. There are a bunch of people first time ever and yet top 20. Seems really curious.
", "votes": 3, "replies": [ { "id": 1236802, "author_name": "Ivan Panshin", "author_url": "", "post_date": "2021-03-13T13:12:35.747000", "content": "Genuinely hope that if some teams are actually using fake accounts to increase the amount of daily subs, they will be removed from the LB/banned from Kaggle.
\nBut it's up to the admins now.
", "votes": 1, "replies": [] }, { "id": 1236818, "author_name": "Charlie Craine", "author_url": "", "post_date": "2021-03-13T13:32:00.553000", "content": "Agreed. Maybe Kaggle needs another layer of authentication like passport or license.
", "votes": -1, "replies": [] }, { "id": 1255943, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-03-29T11:41:22.280000", "content": "I agree. For competitions with such big prizes that should be considered as an option.
", "votes": 1, "replies": [] } ] }, { "id": 1260942, "author_name": "Daniel Shan", "author_url": "", "post_date": "2021-04-02T14:47:03.593000", "content": "@ivanpan not sure if this means anything, but the header says “1289 teams” but there’s actually 1325 teams on the leaderboard. So it could just be a timing thing with the leaderboard. Just my guess.
", "votes": 0, "replies": [ { "id": 1260950, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-04-02T14:52:22.060000", "content": "@danshan That's because 36 are already deleted on the list. and it says [deleted] next to their names.
", "votes": 0, "replies": [] }, { "id": 1260955, "author_name": "Manuel Campos", "author_url": "", "post_date": "2021-04-02T14:55:59.473000", "content": "How were they deleted if there are 1325?
", "votes": 0, "replies": [] }, { "id": 1260958, "author_name": "Daniel Shan", "author_url": "", "post_date": "2021-04-02T14:57:51.927000", "content": "@yusufchabuk I count only 12 \"Deleted\" users on the LB. So it still doesn't seem to add up. But then again, I could be wrong :)
", "votes": 0, "replies": [] }, { "id": 1260959, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-04-02T14:58:15.200000", "content": "@coreacasa Well.. They're still in this 1325 on LB, but it says [deleted] and the accounts are indeed deleted. You can check it for yourself. I can't share a screenshot, unfortunately. For example, position #39
", "votes": 0, "replies": [] }, { "id": 1260971, "author_name": "Manuel Campos", "author_url": "", "post_date": "2021-04-02T15:08:49.100000", "content": "I just wonder what would happen if [Deleted] users were in positions 4 to 12 and not scattered on the LeaderBoard.
", "votes": 0, "replies": [] } ] }, { "id": 1252712, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-03-26T00:30:28.403000", "content": "I myself am not even good enough to participate in such competitions, but I'd feel a little offended if my name were exposed as a potential cheater like in this post. I understand the motivation of the owner of the post and, yes, it's, to some extent, justified, but it may also be really offensive if a participant is wrongly accused. Would a subsequent apology make up for the moral offense and damage already inflicted by the post?
", "votes": -3, "replies": [ { "id": 1252719, "author_name": "Wilmer E. Henao", "author_url": "", "post_date": "2021-03-26T00:53:44.047000", "content": "Whatever dude. They're clearly cheating. Apologies won't be needed.
", "votes": 0, "replies": [] }, { "id": 1252731, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-03-26T01:23:57.583000", "content": "\n\nWhatever dude.
\n
I normally ignore \"whatever dudes\", but I'll make an exception this time.
\n\n\nThey're clearly cheating.
\n
Well.. You're not the judge. ;)
\n\n\nApologies won't be needed.
\n
If you read carefully, you'll see my comment isn't about this specific case, but rather a general statement.
\n✌️
Do you have eyes? They use the same ID
", "votes": -3, "replies": [] }, { "id": 1255870, "author_name": "Yusuf Chabuk", "author_url": "", "post_date": "2021-03-29T09:42:50.770000", "content": "I'll ask you the same question: Do you have eyes? 😎 Have you really read my comment? Besides, you probably mean lilingling1993 and lilingling1992 by \"the same ID\"? Yet, noshakeplz, guandongsheng888, iuyyggghh do not seem very similar to me. Moreover, even if they were \"similar\", that wouldn't mean anything. Anybody can create a similar username, especially if they want to follow a smear tactic. I'm not saying they're not cheating, but that isn't proof by itself.
", "votes": -1, "replies": [] }, { "id": 1260537, "author_name": "Shichang Liu", "author_url": "", "post_date": "2021-04-02T07:54:16.700000", "content": "Yes, only lilingling1993 and lilingling1992, I think you know they cheated.
", "votes": -2, "replies": [] }, { "id": 1260540, "author_name": "", "author_url": "", "post_date": "2021-04-02T08:00:43.337000", "content": "", "votes": -5, "replies": [] }, { "id": 1260568, "author_name": "Shichang Liu", "author_url": "", "post_date": "2021-04-02T08:27:23.617000", "content": "Whatever dude.
@lilingling1992 and 1993 definately cheat
", "votes": 0, "replies": [] }, { "id": 1260869, "author_name": "Manuel Campos", "author_url": "", "post_date": "2021-04-02T13:26:54.490000", "content": "(copy Psi) and also… \"So it seems [Deleted] users are still strong on the LB\"
", "votes": 0, "replies": [] }, { "id": 1256509, "author_name": "Wilmer E. Henao", "author_url": "", "post_date": "2021-03-30T00:41:31.377000", "content": "If you don't have a \"Fork of fork of fork of fork of fork\" notebook. You're probably cheating.
", "votes": 0, "replies": [] }, { "id": 1251706, "author_name": "Aman Saxena", "author_url": "", "post_date": "2021-03-25T03:47:13.510000", "content": "I've seen this happening in various other competitions as well. But I have also noticed people being removed from the leader board too. Surely something that needs to be looked into.
", "votes": 0, "replies": [] }, { "id": 1251659, "author_name": "kaggler", "author_url": "", "post_date": "2021-03-25T02:15:09.453000", "content": "Don't worry! If they have been cheating, they will be removed after the competitions ends
", "votes": 0, "replies": [] }, { "id": 1237180, "author_name": "Nick Sergievskiy", "author_url": "", "post_date": "2021-03-13T20:51:10.157000", "content": "What a reason overfit on LB with 10% of full test
", "votes": 0, "replies": [] }, { "id": 1252266, "author_name": "", "author_url": "", "post_date": "2021-03-25T14:49:27.600000", "content": "", "votes": -8, "replies": [ { "id": 1252308, "author_name": "Fatih Öztürk", "author_url": "", "post_date": "2021-03-25T15:16:45.913000", "content": "Hi Selman. I think I see your point but there is something you are missing. Sometimes it's good to share such posts publicly because this helps others (especially newcomers) to learn/notice that there are indeed such rules in each kaggle competition, and not obeying these always end up with as you losing all your effort by being wiped out from the competition leaderboard.
\nAfter each competition, such cheaters are being removed by the kaggle team but most of the participants can easily miss this process since it takes a couple of days for the removal and no announcement/warning being posted at all.
", "votes": 6, "replies": [] }, { "id": 1252373, "author_name": "", "author_url": "", "post_date": "2021-03-25T16:22:12.280000", "content": "", "votes": -3, "replies": [] }, { "id": 1252400, "author_name": "Charlie Craine", "author_url": "", "post_date": "2021-03-25T16:46:39.877000", "content": "Except that those who are working fairly have limited daily submissions. Those who cheat can just keep adding users and submissions and possibly hide behind those to get more of an advantage. That's the part that is frustrating and unfair. Who knows who the real user is, those two usernames could be a mask for a legit user on the board who is getting unfair levels of submissions. Part of the competition is building your models and being smart about your approach and levels for which you can submit.
", "votes": 0, "replies": [] }, { "id": 1252413, "author_name": "Fatih Öztürk", "author_url": "", "post_date": "2021-03-25T17:08:09.173000", "content": "\n\nThis affects the motivation of the race negatively and causes conflicts.
\n
I don't see why such a post affects you negatively unless you are from those (probably) cheating accounts. On the contrary, I know that some of these cheating accounts will be removed and others who worked fairly will get the ranking they deserved. This is something positive for me.
\n\n\nObjections must be with evidents at the end of the race
\n
I also don't see why objections must be at the end? The author of this thread has really strong arguments. And if these accounts were really innocent, I would expect them to defended themselves to correct the claims made here for the last 12 days.
\nAs you said, these are my opinions and you have yours. It seems to me that you are more sensitive to such posts/sharings. Hope you get used to them so that you won't be affected negatively by seeing them in the future because it's quite likely that you'll see them in other competitions too.
", "votes": 5, "replies": [] }, { "id": 1252526, "author_name": "Selman", "author_url": "", "post_date": "2021-03-25T18:44:33.703000", "content": "I actually expressed my general opinion. The people you mentioned may have been a cheaters and I have no purporse of defending them. As I mentioned, Kaggle needs to take a more systematic approach to the cheat claims presented. Maybe not here, but the allegations can sometimes be biased. That's all the thought behind the first short sentence I wrote. I'm sorry brother, maybe I'm not well understood because my English is poor. (Fatih kardeşim başarılar.)
", "votes": 1, "replies": [] }, { "id": 1252711, "author_name": "", "author_url": "", "post_date": "2021-03-26T00:29:10.470000", "content": "", "votes": -4, "replies": [] }, { "id": 1252874, "author_name": "", "author_url": "", "post_date": "2021-03-26T06:15:39.043000", "content": "", "votes": -3, "replies": [] } ] }, { "id": 1251325, "author_name": "", "author_url": "", "post_date": "2021-03-24T17:18:17.517000", "content": "", "votes": -15, "replies": [ { "id": 1251680, "author_name": "Shichang Liu", "author_url": "", "post_date": "2021-03-25T02:57:29.070000", "content": "Yes, you really should focus on the competition.
", "votes": 1, "replies": [] }, { "id": 1252942, "author_name": "Selman", "author_url": "", "post_date": "2021-03-26T07:59:12.947000", "content": "I am aware you are doing irony. Anyway… You didn't understand me.
", "votes": 0, "replies": [] } ] }, { "id": 1251323, "author_name": "", "author_url": "", "post_date": "2021-03-24T17:16:03.537000", "content": "", "votes": 0, "replies": [] } ], "raw_markdown_by_id": { "1236792": "It seems that something weird is going on with the Leaderboard. Looks like some participants are cheating. @lilingling1993 and @lilingling1992 with the same score are the first candidates for that.\n\nHowever, @noshakeplz and @guandongsheng888 from the 7th place with just 16 subs + @iuyyggghh from 8th place with 26 subs and no previous record on Kaggle seem suspicious as well, but can't say anything for sure.\n\n@juliaelliott, could you look into that?", "1237026": "Multiple accounts violations are removed at the end of the competition, as part of the final leaderboard verification and close process. We do this in order to enable better tracking of offending accounts and avoid further abuse made possible by mid-stream removals.\n\nAlso, in the future, it’s recommended that you bring cases like this directly to kaggle.com/compliance rather than via public forum post. Our compliance team reviews and tracks the cases reported here and acts on those with sufficient evidence appropriately at the close of each competition. Centralizing reports this way helps ensure they do not have to chase down sporadic forum reports. We appreciate your participation and commitment to fair competitions!", "1252607": "There were cases of non cheaters achieving prize or even winning their first competition. In China or Japan for instance there are ML competition platforms where people can train before entering Kaggle competitions.\n\nTL;DR Good performance in few tries is not an indication of cheating.", "1260455": "So it seems lilinglings are still strong on the LB. ", "1260905": "Can anybody explain how it is possible to jump by 300-600 positions between the public and the private LB? I am just curious how to achieve such a great improvement.", "1236800": "@ivanpan I found it very curious too. There are a bunch of people first time ever and yet top 20. Seems really curious. ", "1260942": "@ivanpan not sure if this means anything, but the header says “1289 teams” but there’s actually 1325 teams on the leaderboard. So it could just be a timing thing with the leaderboard. Just my guess.", "1252712": "I myself am not even good enough to participate in such competitions, but I'd feel a little offended if my name were exposed as a potential cheater like in this post. I understand the motivation of the owner of the post and, yes, it's, to some extent, justified, but it may also be really offensive if a participant is wrongly accused. Would a subsequent apology make up for the moral offense and damage already inflicted by the post?", "1250546": "@lilingling1992 and 1993 definately cheat", "1260869": "(copy Psi) and also... \"So it seems [Deleted] users are still strong on the LB\"", "1256509": "If you don't have a \"Fork of fork of fork of fork of fork\" notebook. You're probably cheating.", "1251706": "I've seen this happening in various other competitions as well. But I have also noticed people being removed from the leader board too. Surely something that needs to be looked into.", "1251659": "Don't worry! If they have been cheating, they will be removed after the competitions ends", "1237180": "What a reason overfit on LB with 10% of full test", "1252266": "", "1251325": "", "1251323": "" } }