Focused Search Engine For Ancient Architecture

Search engines are the most important information query tools from the World Wide Web and the key to the internet research and utilization.Following the WWW information's blasted and multivariant growing up,Focused Search Engines are becoming researching focus.This dissertation focused on the topic specific Chinese web information accessing and its screening technology,designed and accomplished an Ancient Architecture Search(AAS) engine which kernel was the topic specific information gathering AACrawler.We firstly introduced history and present condition of nowadays general purpose comprehensive search engines.Secondly,we analyzed their classification,working mechanism and defects.And what's more,Focused Search Engines were surveyed.Based on stressed investigating of information query models,focused retriveal strategies, method of weighted index and retrieval technologies,a Focused Search Engine designing outline was suggested.Accodring to the outline, we accomplished Ancient Architecture Search (AAS) engine,which was integrated hmtl text analysis,homepage interrelate,content detection,database index and Java MultiThread technology.AAS engine is the specific ancient architecture web information system, it has higher accuracy rate than general search engines, and quickly offer complete ancient architecture information.For the problem of infomationization of rare Chinese characters in the field of ancient architecture, we presented a BNF-based-coding for Chinese characters. With the help of this coding, rare Chinese characters could be inputted, stored and queried in AAS.At last, much experience of AAS researching and developing was summed up and the system foreground was indicated.