Martin,don't forget mark my Journal 7,8,9 and Lab8,9 please, i had sent an email last week, but you didn't answer me.
We learned web search in this session, this lecture has four parts: search engines,user queries,web spam
and user needs.
search engines are widely used in the computer,look at the survey picture above , 10.3% of response are at least used search engines once each week, 22.7% are several times each week, 35.1% are at least once every day, 21.2% people used search engines more than four times each day. What a surprising data! Without search engines the web wouldn't scale .Why? Because no incentive in creating content unless it can be easily found.2 The web is both a technology artifact and a social environment .3 Search engines make aggregation of interest possible.4 The acceptance of search interaction makes unlimited selection
stores possible.5 Search turned out to be the best mechanism for advertising on the web, a $15+ B industry.
The web search basics is just like below:
User needs
I think the web has contained most lives of people.people can talking ,learning,downloads,enjoy yourselves and so on. The only shortcoming is it cannot practise your body,sitting too long is not health.
How far do people look for results? When you perform a search on a search engine and don't find what you are looking for, at what point do you typically either revise your search or move on to another search engine?
More spam
techniques:doorway pages, link spamming, robots
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