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URN etd-0129104-095905 Statistics This thesis had been viewed 1937 times. Download 1143 times. Author Yu-Ching Chen Author's Email Address firstname.lastname@example.org Department Computer Science and Enginerring Year 2003 Semester 1 Degree Master Type of Document Master's Thesis Language English Page Count 56 Title Visualizing Web Search Result with 3D approach Keyword search engine information visualization information visualization search engine Abstract Recently, Internet has become the best way for retrieving information. But how we can efficiently retrieve the information is the major problem when we face this enormous database. Search engine provides a good means for this. Just input several keywords, Search engine will find relative documents for us rapidly. But search engine is not perfect. At least in some situations, search engine can’t find related documents precisely. Therefore the user has to spend much time to browse the result page by page. In such situation, finding a useful document would depend on lock. The most popular example is that when we would like to know how fast a jaguar could run. For this purpose, we choose “speed of jaguar” as a keyword to search. As a result, we got thousands of document related to automotive and car racing. We just can find one document related to our purpose only after reading hundreds of descriptions. This is the major obstacle of retrieval technology currently used. The obstacle motivates us to enhance it by applying the technology of information visualization.
The subject of this thesis is to introduce our VisSearch system. The name of system stands for ‘visualize the result of search’. The system is built upon applying numerous theories of information visualization and information retrieval, plus some assumptions. The basic assumptions of the system is:
1. Document can be denoted by some significant words.
2. Significant word can be identified by its occurrence and frequency.
3. Search results can be visualized by showing relationship between the significant words and the documents
The feasibility of three assumptions will be proved by the implementation of VisSearch system. The result of implementation will be able to assist user in classifying, labeling so as to approach their target efficiently. It can be used as a map to help users find a direction to relative documents, or let users know how to change the search keywords to retrieve more accurate results.
In the content, first we will introduce several theories of information visualization and information retrieval. The scope is restricted to theories that have been adopted in our system. Next, we will introduce the VisSearch system and demonstrate how the system help user when searching. After that, we will discuss current issues of the system and possibilities of enhancement and future works.
When designing VisSearch system, we intent to make the system easy to use, without a complex interface, and the output of the system is intuitive and comprehensible. Ultimately, we hope the system will actually help users to solve their problems.
Advisor Committee Jyun-Ming Chen - advisor
Liang-Teh Lee - co-chair
Mao-Lin Chiu - co-chair
Files Date of Defense 2004-01-12 Date of Submission 2004-01-29