Daily Bookmarks 20120618

tfidf
A quick foray into linear algebra and Python: tf-idf
http://timtrueman.com/a-quick-foray-into-linear-algebra-and-python-tf-idf/
Artificial Intelligence in Motion: python
http://aimotion.blogspot.tw/search/label/python
Artificial Intelligence in Motion: Machine Learning with Python: Meeting TF-IDF for Text Mining
http://aimotion.blogspot.tw/2011/12/machine-learning-with-python-meeting-tf.html
term frequency/inverse document frequency (TFIDF) « Infomotions Mini-Musings
http://infomotions.com/blog/tag/term-frequencyinverse-document-frequency-tfidf/
bigrams « Infomotions Mini-Musings
http://infomotions.com/blog/tag/bigrams/
nltk.text
http://nltk.googlecode.com/svn/trunk/doc/api/nltk.text-pysrc.html#TextCollection.tf_idf


Find semantically related terms over a large vocabulary (>1M)? - MetaOptimize Q+A
http://metaoptimize.com/qa/questions/3230/

Another Mapping : The defaultdict — Building Skills in Programming
http://www.itmaybeahack.com/homepage/books/nonprog/html/p10_set_map/p10_c04_defaultdict.html
algorithm - Python - Is a dictionary slow to find frequency of each character? - Stack Overflow
http://stackoverflow.com/questions/2522152/python-is-a-dictionary-slow-to-find-frequency-of-each-character
NumPy-快速处理数据 — 用Python做科学计算
http://hyry.dip.jp:8000/pydoc/numpy_intro.html#id5
Speed of python dict access methods (direct vs. get) | Standard Thoughts
http://www.partofthething.com/thoughts/?p=513
dictionary - python dict: get vs setdefault - Stack Overflow
http://stackoverflow.com/questions/7423428/python-dict-get-vs-setdefault
PythonSpeed/PerformanceTips - PythonInfo Wiki
http://wiki.python.org/moin/PythonSpeed/PerformanceTips#Choose_the_Right_Data_Structure

NLP Challenge: Find semantically related terms over a large vocabulary (>1M)? – MetaOptimize
http://metaoptimize.com/blog/2010/11/05/nlp-challenge-find-semantically-related-terms-over-a-large-vocabulary-1m/
ongoing by Tim Bray · WF XI: Results
http://www.tbray.org/ongoing/When/200x/2007/10/30/WF-Results#p-7
Some Notes on Tim Bray's Wide Finder Benchmark
http://effbot.org/zone/wide-finder.htm
Wide Finder in Python :: Steve Vinoski’s Blog
http://steve.vinoski.net/blog/2007/10/07/wide-finder-in-python/






陽光宅男的擴音器: 用Python也能輕鬆玩自然語言處理（2.4）
http://qheroq.blogspot.tw/2010/08/24-lexical-resources_11.html











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