06/10/2007

Lesson 2, exercise 2.

1. The founders of Google were Larry Page and Sergey Brin.

2. PageRank relies on the uniquely democratic nature of the web by using its vast link structure as an indicator of an individual page's value. In essence, Google interprets a link from page A to page B as a vote, by page A, for page B. But, Google looks at considerably more than the sheer volume of votes, or links a page receives; for example, it also analyzes the page that casts the vote. Votes cast by pages that are themselves "important" weigh more heavily and help to make other pages "important." Using these and other factors, Google provides its views on pages' relative importance.

Of course, important pages mean nothing to you if they don't match your query. So, Google combines PageRank with sophisticated text-matching techniques to find pages that are both important and relevant to your search. Google goes far beyond the number of times a term appears on a page and examines dozens of aspects of the page's content (and the content of the pages linking to it) to determine if it's a good match for your query.

3. In addition to providing easy access to billions of web pages, Google has many special features to help you to find exactly what you're looking for. Click the title of a specific feature to learn more about it.

The button I’m Feeling Lucky bypass our results and go to the first web page returned for your query.

Google Product Search, formerly known as Froogle, is a price comparison service launched by Google Inc. It is currently in beta test stage. It was invented by Craig Nevill-Manning. Its interface provides an HTML form field into which a user can type product queries to return lists of vendors selling a particular product, as well as pricing information.

4. 3,340,000,000 of hits have resulted and there is just a definition in the first page. HTML, short for Hypertext Markup Language, is the predominant markup language for web pages. It provides a means to describe the structure of text-based information in a document — by denoting certain text as headings, paragraphs, lists, and so on — and to supplement that text with interactive forms, embedded images, and other objects. HTML is written in the form of labels (known as tags), surrounded by angle brackets. HTML can also describe, to some degree, the appearance and semantics of a document, and can include embedded scripting language code which can affect the behaviour of web browsers and other HTML processors. The search has taken 0.09 second long.

5. There are fewer hits than before. 136,000,000 hits have resulted for HTLM TUTORIAL and the search has taken to me 0.08 second long.

6. I think that I would be able to create my own Web site thanks to the information on that page because the whole process is very well explained.