Skip to content Skip to sidebar Skip to footer
Showing posts with the label Hash

How Is The Return Value Of __hash__ Used?

Suppose I write a class, but don't define a __hash__ for it. Then __hash__(self) defaults to id… Read more How Is The Return Value Of __hash__ Used?

Hashing An Immutable Dictionary In Python

Short version: What's the best hashing algorithm for a multiset implemented as a dictionary of… Read more Hashing An Immutable Dictionary In Python

What Hashing Function Does Spark Use For Hashingtf And How Do I Duplicate It?

Spark MLLIb has a HashingTF() function that computes document term frequencies based on a hashed va… Read more What Hashing Function Does Spark Use For Hashingtf And How Do I Duplicate It?

Is This An Appropriate Use Of Python's Built-in Hash Function?

I need to compare large chunks of data for equality, and I need to compare many pairs per second, f… Read more Is This An Appropriate Use Of Python's Built-in Hash Function?

How Do You Reencode A Python String Via Packing And Unpacking Using Binascii?

I have a file hashed to a standard md5 Hash Correction: OpenSSL Hashes are HEXDECIMAL representatio… Read more How Do You Reencode A Python String Via Packing And Unpacking Using Binascii?

Hashtable/dictionary/map Lookup With Regular Expressions

I'm trying to figure out if there's a reasonably efficient way to perform a lookup in a dic… Read more Hashtable/dictionary/map Lookup With Regular Expressions

What Is Feature Hashing (hashing-trick)?

I know feature hashing (hashing-trick) is used to reduce the dimensionality and handle sparsity of … Read more What Is Feature Hashing (hashing-trick)?

How Should I Move From Prng Based Generation To Hash-based Procedural Generation?

I want to replace an existing random number based data generator (in Python) with a hash based one … Read more How Should I Move From Prng Based Generation To Hash-based Procedural Generation?