a search agent scours the entire web. constantly evolving and expanding
TRANSCRIPT
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A search agent scours the entire web. Constantly Evolving and Expanding
![Page 3: A search agent scours the entire web. Constantly Evolving and Expanding](https://reader035.vdocuments.net/reader035/viewer/2022062722/56649f335503460f94c4fa3c/html5/thumbnails/3.jpg)
Google Amazon Yahoo EBay Wikipedia
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Humans see one page in native language Computers see multiple pages in code
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Find relevant products Buying websites example Gather all relevant stores (e.g. Amazon,
EBay, Newegg) Relative Product TypesRelevant (page, url, query) ^ offer (page)
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Determines link is relevant to search
Relevant text for queries
Query is “laptops” thus Laptop Computers is the category. “Computer” is the super category and “lightweight” is a subcategory
Relevant (page, url, query) E store, home, store E OnlineStores ^ Homepage (store, home) ^ link (url) ^ page = getpage (url)
Name (string, category)Name (“laptops”, Laptop Computers)
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After searched complete the next job lies with the comparing agent
Information extracted from pages using wrappers
User-determined qualifiers must be met
Laptop Computers ^ offer E Product Offer ^ screen size ^ screen type ^ memory ^ cpu speed ^ hard drive capactiy ^ price ^ etc.
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Comparison
B is better than C making C lower relevance than B
A : 2.4 GHz, 1 GB RAM, 120 GB HDD, $2100B : 2.2 GHz, 512 MB RAM, 80 GB HDD, $1500C : 2.2 GHz, 512 MB RAM, 80 GB HDD, $1600
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