发明名称 |
System and method of enhancing decoding performance of text indexes |
摘要 |
A method of enhancing the decoding performance of text indexes of an indexed collection of text documents is disclosed. The posting list includes a plurality of list entries being of variable size depending on the value stored in each posting list entry. The inventive method is base on a statistical analysis of the posting list entries of the plurality of list entries. Prior to decoding, the method selects a decoding routine being appropriate to decode the most frequent type of posting list entries or of a plurality of various posting list entries. After selecting a particular decoding routine and executing the decoding routine for decoding of the entire posting list, a failure check is performed. In the exceptional case that a failure has occurred, a second alternative decoding procedure is selected and executed.
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申请公布号 |
US7756863(B2) |
申请公布日期 |
2010.07.13 |
申请号 |
US20050112612 |
申请日期 |
2005.04.21 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ALTEVOGT PETER;WIEDRICH SILVIO |
分类号 |
G06F7/00;G06F17/00;G06F17/30 |
主分类号 |
G06F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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