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Query reformulation techniques based on ontological approach have been studied as a method to improve retrieval effectiveness. However, the evaluation of this techniques has primarily focused on comparing the technique with ontology and without ontology. The aim of this paper is to present, evaluate and compare the proposed technique in four different possibilities of reformulation. In this study...
User tends to reformulate query several times when the retrieved result is irrelevant or insufficient. This situation happened because the user is actually having difficulties to translate their information needs into a query that the search engine can fully maximized their algorithm. This problem arises not only in general information search but also in specific domain search. Heuristically we normally...
In most cases, users are unable to precisely translate their information needs into a query format for the search system to process. Users often submit queries containing terms or keywords that do not match with their intended information. That is why user normally reformulates queries several times to gain more information and relevant set of results. The aim of this paper is to present evaluation...
Retrieving relevant information from Web is a challenging task. This is due to the size and rapid growth of the Web content. The existence of great search engine such as Google or Bing has simplified our searching mission. But those search engines are only efficient if the user submit query that precisely represent the user's search intent to the system. The fact is users are bad in translating their...
Users normally facing difficulties to expresses their information needs into a query format that the search system can use to process. Therefore users frequently modify their query with intention to retrieve better results. The goal of this experiment is to compare the precision of the retrieved results by employing domain ontology to reformulate the user query. We proposed to reformulate the query...
Even many current search engines have put a lot of effort to improve the quality of their system, yet the user still facing difficulties in doing their search activity. The problem is actually related to an issue of how easy to use the application, which is referring to usability matter. Therefore, in this paper we made a brief survey on existing semantic search engine (SSE) with the focus to reveal...
Planning suitable menus for individuals who have health problems is a complex task since the solutions produced by professionals (dietitians) are usually very subjective and difficult to be systematically represented. This research focused on designing the knowledge base repository construction which consists of the existing cases to be used as the case-based for the retrieval process. The main aim...
Indexing images on the web has become increasingly challenging. Numerous researches have been conducted to improve the indexing of the images. This research looks into manipulating the surrounding text factor in an effort to increase the success rate of image retrieval. A series of test involving a total of 5, 10, 20 and 30 text before and after the images was conducted to observe the effects on the...
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