Data Science Stack Exchange
Data Science Stack Exchange

Questions tagged [competitions]

8 questions
9
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1 answer

How to approach the numer.ai competition with anonymous scaled numerical predictors?

Numer.ai has been around for a while now and there seem to be only few posts or other discussions about it on the web. The system has changed from time to time and the set-up today is the following: train (N=96K) and test (N=33K) data with 21…
Richi W
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1 answer

numer.ai: how does their leaderboard system work?

There is a data mining competition website called numer.ai. Presumably, behind the website is a hedge fund which makes use of the predictions that people send. People within the 100th top places continuously make money, until the next dataset is…
Ricardo Magalhães Cruz
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Poker tournament winner prediction

I am trying to solve poker tournament winner prediction problem. I’ve millions of historical records in this format: Players ==> Winner P1,P2,P4,P8 ==> P2 P4,P7,P6 ==> P4 P6,P3,P2,P1 ==> P1 I want to find the best algorithm to predict winner…
Tejas Patel
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State of the Art Models for House Pricing task

Currently for my master thesis I'm working on a ML model to evaluate the price of some real estate assets. I'm trying to better understand the current state of the art of this kind of regression problem, and understand what kind of algorithm better…
paolopazzo
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Python and Titanic competition how to get the median of specific range of values where class is 3

I am trying to solve Kaggle's titanic competition. In the test set, there is only 1 row having Fare value as null. It's so easy to replace it with median or average of all Fare values. But I am thinking of getting a graph showing relation between…
alim1990
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How to define the adequate cash prize sizing for hosting a Kaggle or similar compeition?

If you take Kaggle as a well known example of data science competition size, how do you know what is an adequate budget for the cash prize size? At least to determine an order of magnitude, given I am not able to study all previous competitions,…
Open Food Broker
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Coursera's course "How to Win a Data Science Competition"

The Coursera Course "How to Win a Data Science Competition". Has onyone seen it? How is the quality of it? Would you recommend it?
Juan Esteban de la Calle
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Statistical aggregations for numerical features

Can someone explain why in a lot of machine learning competitions, many participants perform some statistical aggregations like mean and median aggregation for numerical features? How can this improve the performance of the machine learning model ?…
Mohamed7894
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