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Optimizing wireless networks represents a complex task, directly affecting quality, coverage, capacity and cost. In this paper, a new coverage presentation method based on geographic information system is proposed for coverage optimization in CDMA work. The proposed method represents a novel approach in that it focuses on distribution of successful access(More)
This paper proposes a method to improve the precison of Web retrieval based on proximity and density of keywords for two-keyword queries. In addition, filtering keywords by semantic relationships also be used. We have implemented a system that re-ranks Web search results based on three measures: first-appearance term distance, minimum term distance, and(More)
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