Basically evaluation of search engine is the process of making judgment about the value, importance and quality of search engine, after considering search engines carefully. The evaluation of search engines has not been keeping up with the advancement of their development. Web search engines work differently based on different mode of interface, features, coverage of the web, ranking methods, d...

While search engines have become vital tools for searching information on the Internet, privacy issues remain a growing concern due to the technological abilities of search engines to retain user search logs. Although such capabilities might provide enhanced personalized search results, the confidentiality of user intent remains uncertain. Even with web search query obfuscation techniques, anot...

A metasearch engine supports unified access to multiple component search engines. To build a very large-scale metasearch engine that can access up to hundreds of thousands of component search engines, one major challenge is to incorporate large numbers of autonomous search engines in a highly effective manner. To solve this problem, we propose automatic search engine discovery, automatic search...

Purpose – To test major Web search engines on their performance on navigational queries, i.e. searches for homepages. Design/methodology/approach – 100 real user queries are posed to six search engines (Google, Yahoo, MSN, Ask, Seekport, and Exalead). Users described the desired pages, and the results position of these is recorded. Measured success N and mean reciprocal rank are calculated. Fin...

Recently there is an increase in smaller, domain–specific search engines that scour the deep web finding information that general–purpose engines are unable to discover. These search engines play a crucial role in the new generation of search paradigms where federated search engines (FSEs) integrate search results from heterogeneous sources. In this paper we pose, for the first time, the proble...

As the Internet grows and search engines proliferate the design of meta-search engines has received increasing attention. We consider the utility of meta-search engines and rank aggregation of ranked lists from different search engines. We designed and implemented a flexible Java tool, called EnCore, to: (i) gather the ranked lists of URLs corresponding to a query from up to five different sear...

As the number of text retrieval systems (search engines) grows rapidly on the World Wide Web, there is an increasing need to build search brokers (metasearch engines) on top of them. Often, the task of building an eeective and eecient metasearch engine is hindered by the heterogeneities among the underlying local search engines. In this paper, we rst analyze the impact of various heterogeneitie...

This editorial preface will describe the need for new technology for search engines, the two generations of search engine technologies used, and the need for a third generation search engine. We will discuss the limitations of today’s search engines and difficulties in determining relevancy of the search and the need for a context-sensitive ranking system, and take a closer look at the future o...

This paper discusses some challenging issues that are found in the evaluation of web search engines by using Thai queries. The discussions are based on our experience in evaluating and comparing the search performance of 7 search engines on Thai queries. The issues addressed in this paper will help in improving further evaluations of search engines for Thai.

This chapter proposes that search engines apply a verticalizing pressure on the WWW many-to-many information distribution model, forcing this to revert to a distributive model similar to that of the mass media. The argument for this starts with a critical descriptive examination of the history of search mechanisms for the Internet. Parallel to this there is a discussion of the increasing ties b...