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Information search method and information search engine

An information search and search engine technology, applied in the field of search engines, can solve the problems of insufficient attention to retrieval efficiency, inability to cope with the application scenarios of low-frequency updates and high-frequency retrievals of search engines, etc., to avoid data loss, maintain integrity, The effect of increasing the aging level

Inactive Publication Date: 2017-01-04
深圳宜搜天下科技股份有限公司
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Problems solved by technology

[0005] In addition, in terms of the memory index structure, many existing implementation methods often only focus on the efficiency of storage space and update efficiency, and do not pay enough attention to the efficiency of retrieval. The update of data will exclude the concurrent retrieval, which cannot cope with the relatively low frequency of search engine updates and Application Scenarios for High Frequency Retrieval

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  • Information search method and information search engine
  • Information search method and information search engine
  • Information search method and information search engine

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Embodiment Construction

[0042] Attached below Figure 1~6 , to describe in detail the specific embodiments of the present invention.

[0043] Please refer to figure 1 , in this embodiment, the search engine 100 includes an incremental real-time indexing unit 101 , a historical version cache unit 102 , a batch supplementary indexing unit 103 , a retrieval unit 104 and a result version control unit 105 .

[0044] Wherein, the incremental real-time index unit 101 includes a real-time index data module 111 and a data update module 114 .

[0045] In this embodiment, the incremental real-time indexing unit 101 adopts the form of full memory to facilitate real-time addition of data. The real-time index data module 111 is used to establish an incremental real-time index, and the incremental real-time index includes a forward index 112 and an inverted index 113 .

[0046] please combine figure 2 , the forward index 112 includes one or more forward index databases storing forward data. Front data include...

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Abstract

The invention provides an information search method and an information search engine for which data is updated in real time and historical version query is provided. The information search method and the information search engine adopt a search architectural pattern combining established increment real-time indexing with batch supplemental indexing with synchronized historical version cache. For increment real-time indexing, multiple historical versions of one data are stored through data IDs with incremental numbers, when increment real-time indexing data is deleted, the earlier historical version of the data is contained in batch supplemental indexing and can be still retrieved, and data loss is avoided.

Description

technical field [0001] The invention relates to the field of information search, in particular to an information search method and a search engine that update data in real time and provide historical version queries. Background technique [0002] Existing search engines generally use the inverted method to organize the index, and the inverted index is essentially an efficient information organization form for reading. Inverted indexes usually use high-efficiency compression in order to improve storage utilization, which results in time-consuming and labor-intensive updating of data in the index and affects retrieval efficiency. [0003] In the prior art, there are mainly two ways to update data in the field of information search: full disk indexing and incremental memory indexing. Among them, the full disk index has a large capacity and high retrieval efficiency, but the data in the index cannot be updated and can only be replaced as a whole; the incremental memory index ha...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/951
Inventor 季强张世侠张宗世陈兆卿
Owner 深圳宜搜天下科技股份有限公司
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