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Data Management scripts

Case insensitive Dictionary

Case-insensitive Dictionary script is a dictionary that has case-insensitive keys. An internal dictionary maps lowercase keys to (key,value) pairs. All key lookups are done against the lowercase keys, but all methods that expose keys to the user retrieve e lowercanal keys. ...
Python

Modular toolkit for data processing

Modular toolkit for Data Processing (MDP) is a Python data processing framework. Implemented algorithms include: Principal Component Analysis ... of trainable supervised and unsupervised algorithms or other data processing units (nodes) that can be combined into data processing flows. Given a sequence of input data, MDP takes care of successively training or executing ...
Python

Natural Language Toolkit

... Language Toolkit, is a suite of program modules, data sets and tutorials supporting research and teaching in computational linguistics and natural language processing. NLTK is ideally suited to students who are learning NLP (natural language processing) or conducting research in NLP or closely related areas, including empirical linguistics, cognitive science, ...
Python

Quick and easy FIFO queue class

... easy First-In-First-Out queue class based on Python's List data structure. ...
Python

Symmetric data obfuscation using xor

... be conveniently used to obfuscate a string of data using simple xor without using any key. ...
Python

Binary search in one line

This is an implementation of the binary search algorithm in (almost) one line. Given a number 'n' and a list 'L', the function returns the index of the number on the list, or -1. ...
Python

Implementation of sets using sorted lists

... set operations using sorted lists as the underlying data structure. Advantages: - Space savings -- lists ... - Fast operations depending on the underlying data patterns. - Non-overlapping sets get united, intersected, or differenced with only log(N) element comparisons.Results are built using fast-slicing. - Algorithms are designed ...
Python

Summary reports using itertools groupby

This script produces a summary of the data, grouped by the given key (default: the first ... value arguments should be functions which, given a data record, return the relevant value. ...
Python

Two pass Pairing Heap with Auxiliary List

This script allows you to manage data collections.For random data, this implementation still makes more comparisons than a ... heapq or the builtin sort. For partially ordered data, it can perform better than the builtin sort. Because of the list of lists data structure, it always takes more memory than either
Python

Find the most frequent elements

This script returns a sorted list of the most common to least common elements and their counts. If n is specified, return only the n most common elements. ...
Python

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