Embedded electronic dictionary word stock structure

An electronic dictionary and embedded technology, applied in the field of databases, can solve problems affecting the validity and practicality of dictionaries, low query efficiency and space utilization, limited processing power and storage capacity, etc., achieve fast and practical search, and improve query speed and efficiency, reasonable structure and effective effect

Inactive Publication Date: 2008-05-21
SUN YAT SEN UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

Using this method to index, the amount of data is generally relatively large, and it can only be stored in the external memory in the embedded system, so the query speed is relatively slow
When the size of the thesaurus reaches a certain level, the search efficiency will be greatly reduced for the thesaurus with this structure.
At the same time, the fixed-length index structure will also cause a large waste of space
In addition, the processing power and storage capacity of the embedded system itself are extremely limited. In the case of a large-scale lexicon, using the above structure, the query efficiency and space utilization are very low, which is extremely inconvenient for users, which seriously affects the dictionary. Effectiveness and practicality

Method used

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  • Embedded electronic dictionary word stock structure
  • Embedded electronic dictionary word stock structure

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Embodiment Construction

[0029] Figures 1 and 2 show an embodiment of the present invention. As shown in Figure 1, it consists of a dictionary tree layer, an index flow layer and an information flow layer.

[0030] The first layer is the dictionary tree layer, which is used as a tree index area to quickly locate words and reside in memory. Each tree node contains: node identifier (such as 'a'~'z' or some special characters), information of child nodes, and the offset of the corresponding index node in the second index stream layer displacement.

[0031] The second layer is the index stream layer, which is used to provide a series of word lists closest to the input word to finally locate the word. Each word has an index node in the index stream layer, and each index node contains: the word Matching information such as Headword of the word, the offset of the information corresponding to the word in the third layer of information flow layer.

[0032] The second layer is the information flow layer, whi...

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Abstract

The invention discloses an embedded word stock structure of electronic dictionary, comprising a dictionary tree layer, a index flow layer and a information flow layer, wherein, the dictionary tree layer is the first layer and memory-resident and the index flow layer and the information flow layer are the second layer and the third layer respectively. The dictionary tree layer is tree index area used for rapid locating the word and the index flow layer is used for inputting a series of word lists most similar to the imported word in order to fix the word finally. The information flow layer is used for storing the information of concrete explanation of the word and the crunodes of the dictionary tree layer point to the corresponding index crunodes of the index flow layer. The words in the index crunodes of the index flow layer point to the block of explanation information of the words in the information flow layer. The invention has the advantages of rational and effective structure of the word stock, high independence of the layers and rapid and practical search, significantly decreased operation quantity of the processor, reduced match times during searching, greatly increased speed and efficiency of search and saved memory space.

Description

technical field [0001] The invention relates to the technical field of databases, in particular to a thesaurus structure of an embedded electronic dictionary. Background technique [0002] At present, the organizational structure of electronic dictionaries mostly adopts the physical structure of the first-level index. When using this structure, it is necessary to search in the entire index to match the input prefix, and generally a fixed-length index is used to search and match in the index by dichotomy. Using this method to index, the amount of data is generally relatively large, and it can only be stored in the external memory in the embedded system, so the query speed is relatively slow. And when the scale of the thesaurus reaches a certain level, the search efficiency will be greatly reduced for the thesaurus with this structure. At the same time, the fixed-length index structure will also cause a large waste of space. In addition, the processing power and storage cap...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 王建民罗笑南陈佳鹏
Owner SUN YAT SEN UNIV
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