Design And Implementation Of A Web-based Patent Information Retrieval System

With the rapid development of computer technology and the arrival of the era of big data,there are more and more electronic information based on big data platform and computer storage device.Patent information is an extremely important information resource in contemporary society,which contains a lot of useful information.Patent information can reflect the latest trends of science and technology and scientific research results,make full use of available patent information.We can know the world's technology development trend,the latest technology development trends and other information through patent information.This is helpful for technicians to expand their thinking and stimulate their innovative consciousness,so as to better explore new technical fields,develop new technical methods and seek new technical directions in their posts.A patent application is a necessary procedure for obtaining a patent right.In order to obtain a patent right,the applicant for patent shall file an application with the administrative department for patent under the state council and issue a certificate upon approval by the administrative department for patent under the state council.The basic requirements for patent application are basically the same in the patent law of all countries in the world.However,patent documents are characterized by unstructured documents such as claims,specifications and abstracts.The patent document also includes multimedia data such as drawings attached to the instruction manual and drawings attached to the abstract.With the rapid increase of the number of patents,it is almost impossible to search for useful patent information by manual means and conduct rapid and effective patent analysis.With the rapid increase of the patents,it is almost impossible to search for useful patent information by manual means and conduct rapid and effective patent analysis.This thesis not only analyzes the present situation of patent information retrieval system,but also makes a deep research and comparison on patent information retrieval system.On the basis of this research,a patent information retrieval system with high precision and recall rate is designed and developed.Based on the classical information retrieval model,this system takes the patent documents updated in real time through the network as the general database.The system also uses computer software to extract keywords from the patent data to form the term database.The general database and term database together serve as the database for generating index files.This system mainly includes four functional modules: system login management,patent document retrieval,patent document analysis and patent document download.