Meta-search engines

Choose large search engines or meta-search engines in the case of few or no results if applicable, try OR. 

Enhanced ToxSeek Meta-Search Engine and Clustering Tool... 

To address this point, a new class of search engines called meta-search engines have been developed. These programs will take the user s query and poll anywhere from 5-10 of the traditional search engines. The meta-search engine will then... 

TABLE 1.3. Number of Hits Returned for Four Defined Search Queries on Some of the More Popuiar Search and Meta-Search Engines... 

Search Term Search Engine Meta-Search Engine ... 

The World Wide Web is at the very bottom of the Information Food Chain. The Yahoos and Alta Vistas of the world are information herbivores, which graze on Web pages and regurgitate them as directories and searchable collections. The talk focuses on information carnivores, which hunt and feast on Web herbivores. Meta-search engines, shopbots, and the future of Web search are also considered. 

Liebel, U., Kindler, B., and Pepperkok, R. (2004). Harvester A fast meta search engine of human protein resources. Bioinformatics 20, 1962-1963. 

You will need to know addresses (http //www.) of the major Internet search engines. But search engines are still not perfected and the results may contain certain amount of noise, i. e, irrelevant information. Some companies use tricky things to get your attention we found many NDT related words like TOFD hidden as meta keywords in every page of some websites. If a search engine leads you to this site you will find no actual information provided, not even a single visible instance of the word TOFD. 

If users are inexperienced in searching for information, they should first consult search engines, meta-databases or portals (Table 5-6). Searchers who are familiar with databases may consult known databases (numeric databases, bibliographic databases, etc.) directly, being aware that they might miss new data sources (see Section 5.18). The reliability and quality of data are only given in peer-reviewed data sources. 

When a novel homology domain has been discovered, it is possible to store the corresponding domain descriptor (profile or HMM) in a number of dedicated domain databases, which can be used to analyze newly identified sequences for their domain content [9, 10]. Several competing domain- and motif-databases exist, including PROSITE, PFAM, SMART, and Superfam, which contain descriptors for most, if not all, of the known domains involved in the ubiquitin system [11-14]. Recently, a new meta-database named INTERPRO has been established, which tries to combine the descriptors of several domain databases under a single user interface [15]. Pointers to the very useful search engines of the domain databases are provided in Table 12.1. 

Sponsors should not provide the text of a meta-data descriptor that contains direct or implied product claims to a search engine. Keywords and other meta-data tags that refer to competitor products are prohibited. 

The site is easily found by search engines, by way of proper meta tag keywords in the html code. 

The searching method was done with meta search available in the website of the library of the faculty of engineering of University of Porto. For searching purposes, keywords were defined, and used in combinations, to apply in the meta searches. 

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