Study And Implementation Of Speciality-Oriented Web Information Searching System Based On Character Blocking

With the continuous advancement of information industry more and more enterprises and companies begin to issue their information on internet. There are volumns of professional information on the Internet and it has become a new aspect of the study of the web information retrieving to obtain professional information effieciently and conviently while overcoming the problems of data-overloaded and i nformation-lost w hich people n ow encounter w hen t hey search web information.The speciality-oriented web information possesses good speciality direction w ith c lear se arching object a nd r elatively concentrative d ata so urce. Moreover, it conquers web information's characteristics of radiation, complication and varity. It can easily keep up with the space of web sites' increasement and web content's updating. And the documents' analysis, auto-diaposal and establishment of speciality-oriented database will be realized more easily.Combined with the scientific research project, textile enterprise's database dynamic-renovating, auto-searching and analyzing system, speciality-oriented web information searching system which is based on character blocking is studied and realized in this paper. At first, the author studies the actuality and development of the web information searching research, indicating the problems occurring in the existed web information system, putting forward the further developing aspect of web information. Based on great study of speciality-oriented web information searching technology, a new method to extract characteristic is advanced in this paper which is to mine content and structure data of web pages on the basis of character blocking. The paper alsomakes great work on the technologies of capturing speciality web information which involves proposing a model of speciality information capturing in the vector space, designing index database whose mainly content is information of specialty websites, developing robot algorithm and searching strategy to extract information of specialty domains. Meanwhile a user's knowledge model which is found on one's interest in special domain is constructed to provide personal services and improve the accuracy rate of web searching. And the study of user's knowledge model includes seizing users' interest in their special domain, building and optimizing model, dealing with user's feedback, etc.At the end of the paper an application named SOKEY system is given out in textile industry. The system's whole structure and working flow are introduced and the dynamical refreshment of web pages, the automatic query of document information, segment browsing of result information, receiving and sending of user' information have been realized by using Active Server Page 3.0, insert language of VbScript and object orient database technology on the platform of Windows2000 Server. And the module of auto-capturing web information has been achieved by using VC.