World Wide Web (WWW) is emerging as a source of online information at a very faster rate.It’ s content is considerably more diverse and certainly much larger than what is commonly understood. Information content in WWW is growing at a rate of 200% annually. The sheer volume of information available makes searching for specific information quite a daunting task. Search engines are efficient tools used for finding relevant information in the rapidly growing and highly dynamic web. There are quite a number of search engines available today. Every search engine consists of three major components: crawler, indexed repository and search software. The web crawler fetches web pages (documents) in a recursive manner according to a predefined importance metric for web pages. Some example metrics are back link count of the page, forward link count, location, page rank etc. The Indexer parses these pages to build an inverted index that is then used by the search s oftware to return relevant documents for a user query.
Even though search engine is a very useful tool, the technology is young and has quite a number of problems, which become worse as the web grows rapidly. Searching in the web today is like dragging a net on....
r-onlineinformation.blogspot.com Create Custom ScreenTips for Shapes Shape ScreenTips in Microsoft Office Visio are the boxed text that appears when you point to a shape. Some Visio shapes have built-in ScreenTips—usually the name of the shape (such as the name of a workflow step). However, you can edit existing ScreenTip text or create new ScreenTip text for shapes that don’t have a built-in ScreenTip. To create or edit a ScreenTip: 1. Select the shape. 2. On the Insert menu, click either Shape ScreenTip or Edit Shape ScreenTip, as applicable. 3. In the Shape ScreenTip dialog box, type or edit the ScreenTip text. 4. Click OK.
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