Invention Grant
US07080091B2 Inverted index system and method for numeric attributes 有权
倒数索引系统和数字属性的方法

Inverted index system and method for numeric attributes
Abstract:
A system and method is provided for generating an inverted index and processing search queries using the inverted index. To increase efficiency for queries having multiple numeric range conditions, numeric attributes are tokenized into a plurality of tokens based on their binary value. The tokens become keys in the inverted index. A numeric range query is translated into a query on multiple tokens and combining two or more range queries on different attributes becomes a simple merge of document identification lists.
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