Font Size: a A A

Medical Treatment Based On Text Mining Research And Application Of Case-Based Reasoning System

Posted on:2012-11-29Degree:MasterType:Thesis
Country:ChinaCandidate:X Z LiFull Text:PDF
GTID:2178330335974520Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
With the development of science and technology, information technology, the increasing promotion, our society is experiencing an unprecedented revolution in information technology and information to promote the development changes in the mode of production, thus contributing to rapid economic development and progress of human civilization. In the health field, with the fierce competition in the health care market, domestic hospitals to improve the level of their business more and more urgent to the hospital information system development and application of information technology on behalf of the hospital has become the hospital to improve the medical environment, improve management and medical standards are an important tool.In this paper, the full investigation of medical diagnosis system based on the proposed text mining based on case-based reasoning system framework. The basis of the electronic medical record, the text mining, because most of the electronic medical records system for unstructured or semi-structured text, not conducive to knowledge retrieval and reuse, this paper through the text preprocessing, Chinese word segmentation, feature extraction and a series of steps to unstructured or semi-structured medical record information into structured knowledge, followed by cases that the structural framework in the form of information to be expressed, the case number, case property values, such as the diagnosis of cases that the contents of the case. The structure of case base is organized by three levels:system-level case base, case base and sub-cases on behalf of libraries. The case of the case base property values in the cluster, in accordance with sub-case similarity to the case library as large as possible sub-cases of case base similarity between the principles to be as small as possible sub-divided into different case base. In the case between the use of "maximum similarity between cases and" the way to find out the representative case.In this paper, the key technology to do a comprehensive study and analysis, including case retrieval, case study, case modifications, and case maintenance. In which case the search is the core of case-based reasoning case, directly determines the efficiency of case-based reasoning, we use the weights in stages to improve the nearest neighbor case retrieval speed, first determine whether the system in which the case library, and then on behalf of the CASE on behalf of case base to retrieve the case c, the last case was on behalf of the library where the sub-c to retrieve the case base similar cases. Global similarity between the cases by the local similarity of the composition, through the similarity threshold can be set to retrieve the required good case. Patients suffering from bronchitis with a diagnosis of proven text mining-based case-based reasoning system can provide supplementary information the doctor's diagnosis, the final summary and outlook on this, the end of text.
Keywords/Search Tags:Text mining, Medical Diagnosis, Case-based reasoning, Retrieve
PDF Full Text Request
Related items