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Advances in wireless networking technology and portable computing devices have led to the emergence of a new computing paradigm known as mobile computing and a number of applications. As a result, software applications have to be redesigned to take advantage of this environment while accommodating the new challenges posed by mobility. As mobile users wander about, they are bound to encounter...
The help information provided by search engines can facilitate its user's information seeking process or hinder it. This study analyzed 20 search engines on how their help systems are placed and organized. Help systems are separated into pre-search help system, and post-search help system, and six aspects of help systems were investigated, including navigation, design elements, technical help, conceptual...
This paper analyzes the computational complexity of finding relevant documents on the Web. Given a search query that has n significant terms, relevant documents retrieved by search engines will contain at least a number k of the significant terms. The threshold k chosen will depend on the collection of documents and is determined experimentally upon formation of the collection. Algorithms are then...
Content analysis of search engine user queries is an important task for search engine research, and identification of topic changes within a user search session is a key issue in content analysis of search engine user queries. The purpose of this study is to provide automatic new topic identification of search engine query logs, and estimate the effect of statistical characteristics of search engine...
Analysis of data from a major metasearch engine reveals that sponsored-link click-through rates appear lower than previously reported. Combining sponsored and nonsponsored links in a single listing, while providing some benefits to users, does not appear to increase clicks on sponsored listings. In a competitive market, rivals continually strive to improve their information-retrieval capabilities...
A heterogeneous community of practice spans many disciplines, industries and professions. Members of these communities are united by common research, products and experiences but are frequently separated by specialized vocabulary and industry terms. This lack of language commonality presents a challenge to efficiently locating relevant Web based information which usually depends on the user's knowledge...
Our paper examined the overlap among results retrieved by three major Web search engines for a large set of more than 10,316 queries. Previous smaller studies have discussed the lack of overlap in results returned by Web search engines for the same queries. Our large-scale study measured the overlap of first page results (both non-sponsored and sponsored) across three major Web search engines - Google,...
The theoretical base of a new approach to automation of interactive information retrieval on the basis of reinforcement learning methods is considered. Advantages and problem questions of the use of reinforcement learning for this task are analyzed and the peculiarities of the task are defined
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