Lucene-based desktop searching system and method

Abstract

The invention discloses a Lucene-based desktop searching system and method. The system expands a Chinese processing function and a text analyzing function on the basis of Lucene and comprises four modules, namely, an index file constructing module, an index file real-time updating module, an index file timing updating module and a user interaction module. The method comprises the following steps of: scanning a file which is stored on a local disk and contains text information; extracting key information such as a name, a path and contents of the file and establishing a reverse index; monitoring the operations of deleting and modifying the file and the like and updating the index to enable the file to be consistent with the index information; receiving a query request of a user, reading an index corresponding to the query request and carrying out similarity calculation; and returning the query results to the user from high to low to help the user quickly and accurately position the required information. The Lucene-based desktop searching system and method disclosed by the invention have the advantages of favorable real-time property, fewer occupied resources and higher recall ratio and precision ratio.

Description

technical field [0001] The invention relates to a Lucene-based desktop search system and method, belonging to the field of information technology processing. Background technique [0002] In the era of information explosion, the capacity of the hard disk is constantly increasing, the directory structure of the local file system is becoming more and more complex, the number of files is increasing, and the need for fast file search is becoming more and more urgent. Desktop search came into being. Desktop search is a retrieval tool for indexing and searching information stored on a personal computer. It is oriented to personal document management and is welcomed by users in the field of personal information management. [0003] At present, more mature desktop search engines include Google Desktop Search, Baidu Hard Disk Search, Netpig, Microsoft Desktop Search and other commercial free software, which have relatively powerful functions, but it takes a long time to build an inde...

AI Technical Summary

Problems solved by technology

[0003] At present, more mature desktop search engines include Google Desktop Search, Baidu Hard Disk Search, Netpig, Microsoft Desktop Search and other commercial free software, which have relatively powerful functions, but it takes a long time to build an index, the update speed of the index is slow, and the real-time performance of the index is not high. High usage of system resources such as hard disk

In addition, due to the existence of commercial interests, the desktop search system involves the user's local disk files, and the user's security and scalability are limited. From the perspective of user experience, real-time indexing and system resource occupancy, there are great deficiencies.

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