Questions tagged [hash]

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How many hash buckets should I set with penalized logistic regression over large dataset

I am working with a logistic regression, and one of the predictors I am considering is a truncated ip address--as a proxy for location. I have about 200 million rows in the dataset but there are about ...
6
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1answer
624 views

Why would somebody use a hash function for creating a test/train split instead of random seed?

I'm going through some ML training material from Google (I can't post a link because I'm getting the material through my company). In the part about how to extract data and split it into train and ...
1
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80 views

project hash into a fixed number of buckets using salt

We currently generate hashes for user-ids in our system (using md5) and bucket them into range buckets (range is 0 to 100, buckets can be 0-30, 31-70, 71-100). This process works this way - we ...
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89 views

Uniformity of hash functions [closed]

I'm looking for references that discuss and compare the uniformity of well known hash functions. For example: How does the literature analyze/compare uniformity of hash functions? I.e. what methods ...