CAJ | 학술논문

针对大规模网页相关性排序工作中使用的多来源网页信息形式多样、利用困难的问题,提出了一种新的自动网页特征获取方法.该方法利用一组事先定义好的规则自动地从网页中获取相关性特征,这些特征可以有效地表达网页的实际内容并改善搜索引擎的排序性能.该方法所获取的网页相关性特征具有格式统一、噪声数据少的特点,能够非常方便地应用于网页的相关性排序.为了评价网页特征和用户查询之间的相关性,还提出了一个特征级别的相关性判定标准.最后,实验结果证明了所提出的特征获取方法和特征相关性等级判定标准对于提升搜索引擎的排序性能具有显著的作用.
침대대규모망혈상관성배서공작중사용적다래원망혈신식형식다양、이용곤난적문제,제출료일충신적자동망혈특정획취방법.해방법이용일조사선정의호적규칙자동지종망혈중획취상관성특정,저사특정가이유효지표체망혈적실제내용병개선수색인경적배서성능.해방법소획취적망혈상관성특정구유격식통일、조성수거소적특점,능구비상방편지응용우망혈적상관성배서.위료평개망혈특정화용호사순지간적상관성,환제출료일개특정급별적상관성판정표준.최후,실험결과증명료소제출적특정획취방법화특정상관성등급판정표준대우제승수색인경적배서성능구유현저적작용.
Focusing on the problem that it is hard to utilize the web multi-fields information with various forms in large scale web search, a novel approach, which can automatically acquire features from web pages based on a set of well defined rules, is proposed. The features describe the contents of web pages from different aspects and they can be used to improve the ranking performance for web search. The acquired feature has the advantages of unified form and less noise, and can easily be used in web page relevance ranking. A special specs for judging the relevance between user queries and acquired features is also proposed. Experimental results show that the features acquired by the proposed approach and the feature relevance specs can significantly improve the relevance ranking performance for web search.