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Word-segmentation organizing method and clustering method for ciphertext search

A clustering method and word segmentation technology, applied in the field of computer science, can solve the problems of fully homomorphic encryption algorithm and quantum computer technology are not very mature, and achieve the effect that is conducive to search

Inactive Publication Date: 2012-10-03
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The research results in these two directions have not yet reached practical applications, mainly because the fully homomorphic encryption algorithm and quantum computer technology are not very mature, and some technologies and key issues are still being overcome

Method used

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  • Word-segmentation organizing method and clustering method for ciphertext search
  • Word-segmentation organizing method and clustering method for ciphertext search
  • Word-segmentation organizing method and clustering method for ciphertext search

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In order to illustrate "a word segmentation method and clustering method oriented to ciphertext search", here is an example about storing and searching the document (tomato.txt) that introduces tomatoes. The document mainly introduces information such as whether tomatoes are red, round, and vegetables. Figure 4 It is an example of word segmentation organization method and clustering method for ciphertext search.

[0032] Combined instanc...

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Abstract

The invention discloses a word-segmentation organizing method and a clustering method for a ciphertext search. The word-segmentation organizing method and clustering method solves an indexing and searching problems of a private document of a user on a public server; word segmentation, feature extraction and summarization are carried out to the private document by a client end, and encryption is carried to segmented words, the document and a summary, so that the privacy of the private document of the user on the server is ensured; and the encrypted document is stored and clustered on a server end, an index is built for convenience in searching, so that searching requests of the user are responded and secondary clustering of the ciphertext is achieved. The word-segmentation organizing method and the clustering method has the characteristics of segmenting the words in the document based on the client end, storing and clustering based on the ciphertext and searching and clustering based on the ciphertext.

Description

technical field [0001] The invention relates to a ciphertext search-oriented word segmentation organization method and a clustering method applied to a search engine, and belongs to the technical field of computer science. Background technique [0002] At present, the amount of data generated by services on the Internet is increasing. Typical Internet services (such as microblogs, search engines, community websites, video applications, etc.) , the core of big data processing technology is a data-intensive computing technology, typically cloud computing technology. [0003] With the emergence of cloud computing technology, including cloud storage technology, cloud search technology, and virtual machine computing technology, Internet cloud computing services are all focused on public data services, regardless of search engines or microblogs, to a certain extent. is full of data that is not considered too private. With the emergence of real-name systems such as Weibo, the pro...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 陆月明马良袁玉宇
Owner BEIJING UNIV OF POSTS & TELECOMM
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