Hey everyone, can you explain why target caculated by 2 months data while history.csv contains 3 months data? Is it conflict?\nWaiting for your reply.
", "messages": [ { "id": "463424", "postDate": "01/30/2019 00:50:34", "content": "Hey everyone, can you explain why target caculated by 2 months data while history.csv contains 3 months data? Is it conflict?\nWaiting for your reply.
", "rawMarkdown": "Hey everyone, can you explain why target caculated by 2 months data while history.csv contains 3 months data? Is it conflict?\nWaiting for your reply.", "votes": null }, { "id": "463481", "postDate": "01/30/2019 04:01:09", "content": "Target is calculated by 2 month which is in new merchants transactions.
", "rawMarkdown": "Target is calculated by 2 month which is in new merchants transactions.", "votes": null }, { "id": "464011", "postDate": "01/31/2019 03:52:03", "content": "Thank you , i know that now , but i have one more question: it is said \"history.csv contain up to 3 months transaction for any ...\", but i found that for particular card_id and particular merchant_id , it contains more than 3 months , can you tell me why?
", "rawMarkdown": "Thank you , i know that now , but i have one more question: it is said \"history.csv contain up to 3 months transaction for any ...\", but i found that for particular card_id and particular merchant_id , it contains more than 3 months , can you tell me why?", "votes": null }, { "id": "464116", "postDate": "01/31/2019 08:24:18", "content": "Do you mean the target is only calculated by the 2 month new merchants transactions? How do you know this?
", "rawMarkdown": "Do you mean the target is only calculated by the 2 month new merchants transactions? How do you know this?", "votes": null }, { "id": "464138", "postDate": "01/31/2019 08:46:43", "content": "@LongYin\nYou can check comments by Valeria Elo. Here is her comment:\n \"Evaluation period\" in target description is the period in which new merchant transactions happen. The loyalty score is calculated after historical and evaluation transaction period are given in order to avoid data leakage.\"\nhttps://www.kaggle.com/c/elo-merchant-category-recommendation/discussion/72993
\n\nSo, to my understanding we can only measure loyalty score for new merchants since we have data for evaluation period for new merchant transactions.
", "rawMarkdown": "LongYin\nYou can check comments by Valeria Elo. Here is her comment:\n \"Evaluation period\" in target description is the period in which new merchant transactions happen. The loyalty score is calculated after historical and evaluation transaction period are given in order to avoid data leakage.\"\nhttps://www.kaggle.com/c/elo-merchant-category-recommendation/discussion/72993\n\nSo, to my understanding we can only measure loyalty score for new merchants since we have data for evaluation period for new merchant transactions.", "votes": null }, { "id": "464143", "postDate": "01/31/2019 08:51:17", "content": "@ Rui Fan\nI am not sure why in explanations they mentioned up to 3 month for historical transactions... \nActually, some card_id's doesn't have any historical transaction and some doesn't have in new merchant transactions.
", "rawMarkdown": "Rui Fan\nI am not sure why in explanations they mentioned up to 3 month for historical transactions... \nActually, some card_id's doesn't have any historical transaction and some doesn't have in new merchant transactions.", "votes": null }, { "id": "464156", "postDate": "01/31/2019 09:12:25", "content": "Thanks.
", "rawMarkdown": "Thanks.", "votes": null }, { "id": "464191", "postDate": "01/31/2019 10:39:44", "content": "Got it , thank you : )
", "rawMarkdown": "Got it , thank you : )", "votes": null } ], "comments": [ { "id": 463481, "author_name": "salamatburj", "author_url": "", "post_date": "01/30/2019 04:01:09", "content": "Target is calculated by 2 month which is in new merchants transactions.
", "votes": null, "replies": [ { "id": 464011, "author_name": "destiny3027", "author_url": "", "post_date": "01/31/2019 03:52:03", "content": "Thank you , i know that now , but i have one more question: it is said \"history.csv contain up to 3 months transaction for any ...\", but i found that for particular card_id and particular merchant_id , it contains more than 3 months , can you tell me why?
", "votes": null, "replies": [] }, { "id": 464116, "author_name": "longyin2", "author_url": "", "post_date": "01/31/2019 08:24:18", "content": "Do you mean the target is only calculated by the 2 month new merchants transactions? How do you know this?
", "votes": null, "replies": [] }, { "id": 464138, "author_name": "salamatburj", "author_url": "", "post_date": "01/31/2019 08:46:43", "content": "@LongYin\nYou can check comments by Valeria Elo. Here is her comment:\n \"Evaluation period\" in target description is the period in which new merchant transactions happen. The loyalty score is calculated after historical and evaluation transaction period are given in order to avoid data leakage.\"\nhttps://www.kaggle.com/c/elo-merchant-category-recommendation/discussion/72993
\n\nSo, to my understanding we can only measure loyalty score for new merchants since we have data for evaluation period for new merchant transactions.
", "votes": null, "replies": [] }, { "id": 464143, "author_name": "salamatburj", "author_url": "", "post_date": "01/31/2019 08:51:17", "content": "@ Rui Fan\nI am not sure why in explanations they mentioned up to 3 month for historical transactions... \nActually, some card_id's doesn't have any historical transaction and some doesn't have in new merchant transactions.
", "votes": null, "replies": [] }, { "id": 464156, "author_name": "longyin2", "author_url": "", "post_date": "01/31/2019 09:12:25", "content": "Thanks.
", "votes": null, "replies": [] }, { "id": 464191, "author_name": "destiny3027", "author_url": "", "post_date": "01/31/2019 10:39:44", "content": "Got it , thank you : )
", "votes": null, "replies": [] } ] } ], "raw_markdown_by_id": { "463424": "Hey everyone, can you explain why target caculated by 2 months data while history.csv contains 3 months data? Is it conflict?\nWaiting for your reply.", "463481": "Target is calculated by 2 month which is in new merchants transactions.", "464011": "Thank you , i know that now , but i have one more question: it is said \"history.csv contain up to 3 months transaction for any ...\", but i found that for particular card_id and particular merchant_id , it contains more than 3 months , can you tell me why?", "464116": "Do you mean the target is only calculated by the 2 month new merchants transactions? How do you know this?", "464138": "LongYin\nYou can check comments by Valeria Elo. Here is her comment:\n \"Evaluation period\" in target description is the period in which new merchant transactions happen. The loyalty score is calculated after historical and evaluation transaction period are given in order to avoid data leakage.\"\nhttps://www.kaggle.com/c/elo-merchant-category-recommendation/discussion/72993\n\nSo, to my understanding we can only measure loyalty score for new merchants since we have data for evaluation period for new merchant transactions.", "464143": "Rui Fan\nI am not sure why in explanations they mentioned up to 3 month for historical transactions... \nActually, some card_id's doesn't have any historical transaction and some doesn't have in new merchant transactions.", "464156": "Thanks.", "464191": "Got it , thank you : )" }, "source": "meta" }