Measuring informative content of words in documents in a document collection relative to a probability function including a concavity control parameter

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专利权人:

Xerox Corporation

发明人:

Clinchant Stephane

申请号：

US201213463346

公开号：

US9460197(B2)

申请日:

2012.05.03

申请国别(地区):

美国

年份:

2016

代理人:

Fay Sharpe LLP

摘要：

Processing methods and systems are provided for representing documents relative to importance of words in the document. A processor comprising a weighting model of word importance in a document in a collection relative to an importance of the word in other documents in the collection computes a deviation of distribution of the word from a probability distribution of the word in other documents in the collection, where the deviation distribution is weighted in accordance with a concavity control function. A concavity control parameter is adjustable relative to word frequency.

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中国工程科技知识中心

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