Searching multimedia federated content web collections

Abstract

If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this research is to show that federated content collections are important for providing access to multiple content repositories, including image, video, audio and Web sites. Design/methodology/approach -This paper presents findings from an analysis of differences in users' Web searching patterns as they access various federated content collections. A dataset of 4,056,374 records submitted to the Dogpile.com Web meta-search engine were analysed. An analysis was conducted of search session length, query length, number of results pages viewed, use of systems' assistance and the frequency of repeat queries. Findings -Overall, users entered two to three terms per query and examined only the first pages of results. However, findings include differences in users' access patterns to various content collections. Web, news and audio queries were longer sessions but shorter queries. More users seeking images and videos sought systems assistance. Originality/value -This is a large-scale original study using data from a commercial Web search engine. The paper provides a valuable comparison of different types of search -text v. audio, image, etc. IntroductionWeb searching is an everyday skill used by many people worldwide. Previous studies show that overall, Web searches are short, and people view few results pages (Spink and Jansen, 2004). Many Web users are now accessing federated content collections via the Web. Federated search, also known as distributed search, is a growing area of information retrieval research (Callan, 2000;Si and Callan, 2005). A federated content collection is a content organising scheme involving multiple repositories of content, instead of a central repository. These individual repositories typically have their own storage, indexing, and retrieval algorithms. Major Web search engines typically offer tabbed interfaces that permit users to search multiple federated content collections, such as Web documents, images, audio, and video files.Si and Callan (2005) identify three key research problems for federated or distributed Web searching development: first, resource description, or, creating information about the contents of each resource; se...

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