{ "id": 13918, "title": "Field Auction", "url": "/competitions/facebook-recruiting-iv-human-or-bot/discussion/13918", "author_name": "", "post_date": "2015-05-01T10:38:59.730Z", "votes": 7, "comment_count": 6, "views": 1264, "content": "

Greetings,

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    What is the exact meaning of field "Auction", looks to me more like an auctioning platform rather than an Auction of a particular product. Reason is same Auction has multiple "Merchandise" associated with it 

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Regards,

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Sanjeev

", "messages": [ { "id": "75892", "postDate": "05/01/2015 10:38:59", "content": "

Greetings,

\n

    What is the exact meaning of field "Auction", looks to me more like an auctioning platform rather than an Auction of a particular product. Reason is same Auction has multiple "Merchandise" associated with it 

\n\n

Regards,

\n

Sanjeev

", "rawMarkdown": "", "votes": null }, { "id": "75919", "postDate": "05/01/2015 15:14:34", "content": "

Wanted to ask precisely the same thing. A very big percentage of the bids.csv file (537347 entries) consists of data for just a single auction with all possible merchandise types (edit: except for auto parts).

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So, does auction mean "unique identifier for auction site"? If not, how should we interpret it?

", "rawMarkdown": "", "votes": null }, { "id": "76405", "postDate": "05/03/2015 19:25:16", "content": "

It could mean that the same product fall under multiple "Merchandise" categories. 

", "rawMarkdown": "", "votes": null }, { "id": "76406", "postDate": "05/03/2015 19:31:37", "content": "

it could be multiple products being sold in one auction...there is no product ID; so no need to assume that each auction is only 1 product. Maybe auction-merchandise pair could be a single product.

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Then again the curious thing about bidders restricted to only 1 merchandise; but i think that is an artifact of incorrect data sampling and release than an actual pattern.

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This apart; the problem of identifying automated bidders is inherently easy as the AUC's approach an almost perfect classifier. 

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Any more seems to be hill climbing; my CV scores based on the random seed vary largely; i suspect that the top 10 ranking of the private leaderboard may change a lot as the dataset is small - only 4700- and 30% only used for the public leaderboard.

", "rawMarkdown": "", "votes": null }, { "id": "76409", "postDate": "05/03/2015 19:52:02", "content": "

[quote=Venkatesh;76405]

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It could mean that the same product fall under multiple "Merchandise" categories. 

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[/quote]

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I'd really love to buy an auto parts, clothing, mobile & furniture item.

", "rawMarkdown": "", "votes": null }, { "id": "76412", "postDate": "05/03/2015 19:59:56", "content": "

Let me know if you find one. I know some of them doesn't make sense. But it could be. For example: a smart watch could be listed under electronics, Jewelry, mobile, sporting good, fashion, etc.

", "rawMarkdown": "", "votes": null }, { "id": "76415", "postDate": "05/03/2015 20:04:29", "content": "

This is the same issue discussed in this thread. To me the merchandise category seems wrong, because of the two points people have made: 1) bidders have only one merchandise category, and 2) many auctions have a lot of categories.

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I'm hoping one of the admins weighs in soon.

", "rawMarkdown": "", "votes": null } ], "comments": [ { "id": 75919, "author_name": "rinzewind", "author_url": "", "post_date": "05/01/2015 15:14:34", "content": "

Wanted to ask precisely the same thing. A very big percentage of the bids.csv file (537347 entries) consists of data for just a single auction with all possible merchandise types (edit: except for auto parts).

\n

So, does auction mean "unique identifier for auction site"? If not, how should we interpret it?

", "votes": null, "replies": [] }, { "id": 76405, "author_name": "pappakrishnan", "author_url": "", "post_date": "05/03/2015 19:25:16", "content": "

It could mean that the same product fall under multiple "Merchandise" categories. 

", "votes": null, "replies": [] }, { "id": 76406, "author_name": "karansarao", "author_url": "", "post_date": "05/03/2015 19:31:37", "content": "

it could be multiple products being sold in one auction...there is no product ID; so no need to assume that each auction is only 1 product. Maybe auction-merchandise pair could be a single product.

\n

Then again the curious thing about bidders restricted to only 1 merchandise; but i think that is an artifact of incorrect data sampling and release than an actual pattern.

\n

This apart; the problem of identifying automated bidders is inherently easy as the AUC's approach an almost perfect classifier. 

\n

Any more seems to be hill climbing; my CV scores based on the random seed vary largely; i suspect that the top 10 ranking of the private leaderboard may change a lot as the dataset is small - only 4700- and 30% only used for the public leaderboard.

", "votes": null, "replies": [] }, { "id": 76409, "author_name": "rinzewind", "author_url": "", "post_date": "05/03/2015 19:52:02", "content": "

[quote=Venkatesh;76405]

\n

It could mean that the same product fall under multiple "Merchandise" categories. 

\n

[/quote]

\n

I'd really love to buy an auto parts, clothing, mobile & furniture item.

", "votes": null, "replies": [] }, { "id": 76412, "author_name": "pappakrishnan", "author_url": "", "post_date": "05/03/2015 19:59:56", "content": "

Let me know if you find one. I know some of them doesn't make sense. But it could be. For example: a smart watch could be listed under electronics, Jewelry, mobile, sporting good, fashion, etc.

", "votes": null, "replies": [] }, { "id": 76415, "author_name": "chotch", "author_url": "", "post_date": "05/03/2015 20:04:29", "content": "

This is the same issue discussed in this thread. To me the merchandise category seems wrong, because of the two points people have made: 1) bidders have only one merchandise category, and 2) many auctions have a lot of categories.

\n

I'm hoping one of the admins weighs in soon.

", "votes": null, "replies": [] } ], "raw_markdown_by_id": { "75892": "", "75919": "", "76405": "", "76406": "", "76409": "", "76412": "", "76415": "" }, "source": "meta" }