Search engines are web-based tools that allow users to locate information on the World Wide Web. They are software programs that help people find the information they are looking for online using keywords or phrases. Over the years, algorithms have become increasingly complex as they attempt to provide more relevant and accurate answers to search engine user queries. The purpose of a search engine is to provide answers to user queries in the form of relevant web pages. The search engine algorithm is a term used to describe a complex system of several algorithms that evaluates all indexed pages and determines which of them should appear in the search results of a given query.
Search engines only “see” text on web pages and use the underlying HTML structure to determine relevance. It searches the results in its own database, sorts them and draws up an ordered list of these results using unique search algorithms. Yahoo was once a very popular and dominant search engine, but has since been overshadowed by Google. It's difficult to create a Flash site that's as search engine friendly; as a result, Flash sites tend not to rank as highly as sites developed with well-coded HTML and CSS (cascading style sheets), a complex mechanism for adding styles to website pages beyond HTML normal). The search engine does not store all the information on the page, but rather it is only the essential information that algorithms need to evaluate the relevance of the page for ranking purposes.
Search engines use pieces of software called web crawlers to locate publicly available information on the Internet, which is why this process is known as tracking. The search engine searches for the keyword in the predefined database index instead of going directly to the web to search for the keyword. Search engine algorithms take the key elements of a web page, including page title, content, and keyword density, and make a ranking for where to place results on pages. This search engine makes its users anonymous and is an excellent solution for users concerned about the amount of information Google and Bing collect about their users. A search engine is software accessed on the Internet that searches a database of information according to the user's query.
Although Bing uses the fundamental principles of search engines (crawling, indexing, sorting), it also uses a special algorithm called Space Partition Tree And Graph that relies on vectors for categorizing information and responding to search queries. Once the web page is analyzed and saved in the index, it can be used as a search result for a possible search query. In addition to its Chinese search engine, Baidu also offers a map service called Baidu Maps and more than 55 other Internet-related services. Search engine class 10 is an advanced level of understanding how search engines work. It covers topics such as how algorithms are used to evaluate web pages, how web crawlers locate publicly available information on the Internet, how keyword density affects rankings, how Flash sites tend not to rank as highly as HTML sites, how Yahoo has been overshadowed by Google, and how Baidu offers more than 55 other Internet-related services.