Search engines have become an important decision-making tool today. Unfortunately, they still need to improve in answering complex queries. The answers to complex decisionmaking queries such as “best burgers and fries” and “good restaurants for anniversary dinner,” are often subjective. The most relevant answer to the query can be obtained by only collecting people’s opinions about the query, w...

Search engine logs not only keep navigation information, but also the queries made by their users. In particular, queries to a search engine follow a power-law distribution, which is far from uniform. Clicks and queries can be used to improve the search engine itself in different aspects: user interface, index performance, and answer ranking. In this chapter we present the main ideas and we sho...

This paper investigates the publishing trends of search engine literature as catalogued in the social sciences citation index (SSCI) database in the period 1995-2009. Our findings indicate that (1) the quantity of recent research on search engine study is expanding remarkably; (2) the frequency indices of author productivity appear to abide by Lotka’s Law; (3) most research papers on search eng...

We have developed a location-based search system for web documents on the Internet. This system can find web documents based on the distance between locations that are described in web documents and a location specified by a user. It consists of three modules. (1) A robot that gathers documents from the Internet, (2) a parser that extracts address strings from web documents and associates latit...

Commercial search engines, especially meta-search engines was designed to retrieve the information by submitting users’ queries to multiple conventional search engines and integrating their partial searching results generated by each search engine. How to find the best search engine for user queries is know as the selection problem of search engines. Recently, the selection problem has become a...

Commercial search engines, especially meta-search engines was designed to retrieve the information by submitting users’ queries to multiple conventional search engines and integrating their partial searching results generated by each search engine. How to find the best search engine for user queries is know as the selection problem of search engines. Recently, the selection problem has become a...

This paper begins with a review on the research status of search engine, followed by discussion on goals of search engine, and then the principle of distributed computing is explained. Consequently the MapReduce distributed computing model and the Hadoop distributed file system (HDFS) are analyzed in detail. Finally the distributed search engine architecture is presented. On the basis of the ar...

Search engine optimization [SEO] is often about making modifications to parts of the website. When viewed individually, these changes might seem like incremental improvements, but when combined with optimization technique, they could have noticeable impact on website’s user experience and performance in search results. SEO requires considerable time, professional communicators should progressiv...

Search engines are an important part of electronic commerce as they are the most common tools used by buyers and sellers alike. Search engine owners can determine the set of products/firms listed, the order of appearance in the search list and other policies that affect the value of the search engine to the buyers and sellers. Correspondingly, the entity that owns the search engine has special ...