| 文本检索中动态索引技术研究 |
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| 引用本文： | 张华,童德茂,顾红飞.文本检索中动态索引技术研究[J].韶关学院学报,2011,32(2). |
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| 作者姓名： | 张华 童德茂 顾红飞 |
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| 作者单位： | 阜阳职业技术学院,工程科技学院,安徽,阜阳,236031 |
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| 基金项目： | 安徽省优秀青年人才基金资助项目(2009SQRZ216) |
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| 摘 要： | 分析了当前信息检索多是建立在语词匹配基础上的搜索,索引库不断增大,搜索时间长等问题.通过对文本检索步骤和索引结构的研究表明,索引结构是决定文本检索效率的关键.提出对动态索引结构B+树进行改进,通过改进减少了索引层数,提高了检索速度,降低了索引存储空间,研究结果对改进文本检索效率具有积极意义.
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| 关 键 词： | 文本检索 B 树 动态索引 |
Research of dynamic index technology in text retrieval |
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| ZHANG Hua,TONG De-mao,GU Hong-fei.Research of dynamic index technology in text retrieval[J].Journal of Shaoguan University(Social Science Edition),2011,32(2). |
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| Authors: | ZHANG Hua TONG De-mao GU Hong-fei |
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| Institution: | ZHANG Hua,TONG De-mao,GU Hong-fei (Institute of Engineering and Technology,Fuyang College of Vocational and Technology,Fuyang 236031,Anhui,China) |
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| Abstract: | Most of information retrieval based on key words of matching at present.This paper aims at the problem of index database continuously increasing,which make for inefficient retrieval.This paper studies the structure of text index and gives the new tree based on dynamic index B+ tree.The new index structure cuts down the depth of index,improves retrieval speed and reduces storage area,which is of great importance improve text retrieval efficiency. |
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| Keywords: | text retrieval B Tree dynamic index |
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