新疆大学学报(自然科学版)
新疆大學學報(自然科學版)
신강대학학보(자연과학판)
XINJIANG UNIVERSITY JOURNAL(NATURAL SCIENCE EDITION)
2014年
2期
217-221
,共5页
垂直搜索引擎%Nutch%医疗信息%中文分词%文本分类
垂直搜索引擎%Nutch%醫療信息%中文分詞%文本分類
수직수색인경%Nutch%의료신식%중문분사%문본분류
vertical search engine%Nutch%medical information%chinese word segmentation%text catego-rization
针对当前大众借助网络获取医疗信息的需求日益增强,以及通用搜索引擎获取专业领域信息时准确性差、效率低下的缺点,本文设计了基于nutch组件的医疗垂直搜索引擎。该系统实现了中文分词功能,通过文本训练得出了专业词库,运用空间向量模型算法对网页进行医疗主题相关度的计算,实现了网页过滤功能,并在排序算法中加入了主题相关因素。测试结果表明:该系统相对于通用搜索引擎,在获取医疗行业信息方面具有更高查准率,减少了不相关信息的干扰,使医疗信息的查找与定位更精确,能够为大众提供更具针对性的服务。
針對噹前大衆藉助網絡穫取醫療信息的需求日益增彊,以及通用搜索引擎穫取專業領域信息時準確性差、效率低下的缺點,本文設計瞭基于nutch組件的醫療垂直搜索引擎。該繫統實現瞭中文分詞功能,通過文本訓練得齣瞭專業詞庫,運用空間嚮量模型算法對網頁進行醫療主題相關度的計算,實現瞭網頁過濾功能,併在排序算法中加入瞭主題相關因素。測試結果錶明:該繫統相對于通用搜索引擎,在穫取醫療行業信息方麵具有更高查準率,減少瞭不相關信息的榦擾,使醫療信息的查找與定位更精確,能夠為大衆提供更具針對性的服務。
침대당전대음차조망락획취의료신식적수구일익증강,이급통용수색인경획취전업영역신식시준학성차、효솔저하적결점,본문설계료기우nutch조건적의료수직수색인경。해계통실현료중문분사공능,통과문본훈련득출료전업사고,운용공간향량모형산법대망혈진행의료주제상관도적계산,실현료망혈과려공능,병재배서산법중가입료주제상관인소。측시결과표명:해계통상대우통용수색인경,재획취의료행업신식방면구유경고사준솔,감소료불상관신식적간우,사의료신식적사조여정위경정학,능구위대음제공경구침대성적복무。
As the demands of public access to medical information with the help of network is growing, and when people use general search engines get professional information accuracy is poor and ineffcient. This paper designs a medical vertical search engine based on nutch components. The system realized the function of Chinese word segmentation.It also obtained Term Library by training texts. Using of SVM, the engine calculated the correlation between web page and medical domain.It realized the function of web page filtering. Finally,this system joined the theme relevant factors in the sorting algorithm.Test results show that,comparing with the general search engine,this system has a higher accuracy in terms of access to health information. It can reduce the interference of irrelevant information,to make finding and positioning medical information more accurate.So this system can provide the public with more targeted services.