Â¥Ö÷

web ÍÚ¾ò¹¤¾ßÒ»ÀÀ£¬¼°Ïêϸ½éÉÜ 1£©MALLET A Machine Learning for Language Toolkit http://mallet.cs.umass.edu/ ¡°an integrated collection of Java code useful for statistical natural language processing, document classification, clustering, information extraction, and other machine learning applications to text¡± Minimally documented but has lots of stuff: Building feature vectors Various classification methods (Naïve Bayes, max-ent, boosting, winnowing) Evaluation: precision, recall, F1, etc. N-grams Selecting features using information gain They have some examples of front-end code    Êղؠ  ·ÖÏí   ¶¥(1)

	µÚ2Â¥

2£©MinorThird http://minorthird.sourceforge.net/ ¡°a collection of Java classes for storing text, annotating text, and learning to extract entities and categorize text¡± Documentation seems to be pretty good: comprehensive Javadocs, tutorial, FAQ¡­ Has the concept of ¡°spans¡± (sequences of words) that can be extracted and classified based on content or context Stored documents can be annotated in independent files using TextLabels (denoting, say, part-of-speech and semantic information)

	µÚ3Â¥

3£©Weka http://www.cs.waikato.ac.nz/~ml/weka/ ¡°Weka is a collection of machine learning algorithms for data mining tasks. The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization. It is also well-suited for developing new machine learning schemes.¡± Has a GUI Extensive documentation Website lists a number of compatible datasets (regression and classification problems) Also lists many Weka-related projects

	µÚ4Â¥

4£©CLUTO http://www-users.cs.umn.edu/~karypis/cluto/ ¡°a software package for clustering low- and high-dimensional datasets and for analyzing the characteristics of the various clusters¡± Partitional, agglomerative and graph-partitioning algorithms Various similarity/distance metrics Many options/tools for visualizing and summarizing clustering results Claims to scale to hundreds of thousands of objects in tens of thousands of dimensions wCluto: web-based application built on CLUTO gCluto: cross-platform graphical application

	µÚ5Â¥

5£©MG4J: http://mg4j.dsi.unimi.it/ ¡°a collaborative effort aimed at providing a free Java implementation of inverted-index compression techniques; as a by-product, it offers several general-purpose optimised classes, including fast & compact mutable strings, bit-level I/O, fast unsynchronised buffered streams, (possibly signed) minimal perfect hashing for very large strings collections, etc.¡±

	µÚ6Â¥

thank Y

	µÚ7Â¥

¿ñÔÞÒ»ÏÂ

	µÚ8Â¥

¶àл£¬Ë³±ã¹§Ï²Ò»ÏÂÂ¥Ö÷¡£

	µÚ9Â¥

ÔΡ£¡£ÓÖÊÇÓ¢ÎÄ

	µÚ10Â¥

лл