With the initiation of the Web and search engines, online searching has become a common method for obtaining information. People search for information on a daily basis, for various purposes: Searching is the second most common online activity after email.
Next Page Introduction Search Engine refers to a huge database of internet resources such as web pages, newsgroups, programs, images etc.
It helps to locate information on World Wide Web. User can search for any information by passing query in form of keywords or phrase.
It then searches for relevant information in its database and return to the user. Search Engine Components Generally there are three basic components of a search engine as listed below: It is a software component that traverses the web to gather information.
Database All the information on the web is stored in database. It consists of huge web resources. Search Interfaces This component is an interface between user and the database.
It helps the user to search through the database. Search Engine Working Web crawler, database and the search interface are the major component of a search engine that actually makes search engine to work.
Following are the steps that are performed by the search engine: The search engine looks for the keyword in the index for predefined database instead of going directly to the web to search for the keyword. It then uses software to search for the information in the database. This software component is known as web crawler.
Once web crawler finds the pages, the search engine then shows the relevant web pages as a result. These retrieved web pages generally include title of page, size of text portion, first several sentences etc.
These search criteria may vary from one search engine to the other. The retrieved information is ranked according to various factors such as frequency of keywords, relevancy of information, links etc. User can click on any of the search results to open it.
Architecture The search engine architecture comprises of the three basic layers listed below: Content collection and refinement.View over Characteristics of 2, conservation plant species and cultivars including appearance, use in conservation and restoration, growth requirements, and suitability for NRCS practices.
Enter Search Criteria. Search Engines A search engine is an online service that can aid a user in finding a web page that contains particular content the user is looking for. There are . This page contains a representative list of major databases and search engines useful in an academic setting for finding and accessing articles in academic journals, institutional repositories, archives, or other collections of scientific and other articles.
Statistics on Search Engine Marketing usage and adoption to inform your search engine marketing strategies and tactics. Statistics help us turn data into information, allowing us to make informed and rational decisions and that's exactly the purpose of this article.
3. Related Works There is an absolute agreement in most articles for the importance of search engines for web mining due to the huge grow of data among the worldwide.
The engine might assign a weight to each entry; each commercial search engine has a different formula for assigning weight to the words in its index. This is one of the reasons that a search for the same word on different search engines will produce different lists, with the pages presented in different orders.