CAJ | 학술논문

散列表是一种常见的数据结构，理论上它能以常数级时间复杂度O (1)执行查询操作，因而在计算机技术中具有广泛的应用。在大规模用户并发向全文检索系统请求数据的情况下，系统会出现响应速度慢以及检索效率低等问题。为解决上述问题，引入了动态散列技术—线性散列，结合全文检索系统的实际需要，提出了一种分块式线性散列倒排索引的构建方法，并详细阐述了该线性散列索引的索引结构、存储方式、设计思路和实现细节。经大量实验测试，基于线性散列的倒排索引具有极快的响应速度，明显提高了全文检索的查询性能。
산렬표시일충상견적수거결구，이론상타능이상수급시간복잡도O (1)집행사순조작，인이재계산궤기술중구유엄범적응용。재대규모용호병발향전문검색계통청구수거적정황하，계통회출현향응속도만이급검색효솔저등문제。위해결상술문제，인입료동태산렬기술—선성산렬，결합전문검색계통적실제수요，제출료일충분괴식선성산렬도배색인적구건방법，병상세천술료해선성산렬색인적색인결구、존저방식、설계사로화실현세절。경대량실험측시，기우선성산렬적도배색인구유겁쾌적향응속도，명현제고료전문검색적사순성능。
Hash table is a common data structure,and theoretically it can execute the query operation in a constant level time complexity O (1),so it has a wide application in the computer technology. Under the circumstances that large-scale concurrent users try to request data from the full-text retrieval system,the system will be slow to respond and retrieve in low efficiency. In order to solve these prob-lems,introduce a dynamic hashing technique—linear hash. Combined with the full-text retrieval system’ s actual needs,propose a method of block inverted index built on linear hash,and elaborate the linear hash index’ s index structure,storage pattern,design ideas and imple-mentation details. After a large number of experimental tests, the inverted index based on linear hash has an extremely fast response speed,and significantly improves the full-text retrieval’ s query performance.