Simple implementation of the "hashing trick" for featurization #154
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| @@ -0,0 +1,20 @@ | |||
| package com.twitter.algebird | |||
|
Cool stuff. We have been doing exactly this internally, but not within algebird. |
| @@ -7,6 +7,6 @@ addSbtPlugin("com.typesafe.sbt" % "sbt-ghpages" % "0.5.0") | |||
|
|
|||
| addSbtPlugin("com.twitter" % "sbt-gitflow" % "0.1.0") | |||
|
|
|||
| addSbtPlugin("com.jsuereth" % "xsbt-gpg-plugin" % "0.6") | |||
| //addSbtPlugin("com.jsuereth" % "xsbt-gpg-plugin" % "0.6") | |||
There was a problem hiding this comment.
Can you remove this comment? We use this to publish.
johnynek
added a commit
that referenced
this pull request
Apr 9, 2013
Simple implementation of the "hashing trick" for featurization
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This produces fixed-size feature vectors given any number of key/value pairs, for any value type V:Group and key type that can be converted to a byte array. This is most directly inspired by Jeremy Hoon's recent post on hash kernels, but is better know from its use in Vowpal Wabbit etc - see http://en.wikipedia.org/wiki/Feature_hashing