Definitions

comparison shopping

Comparison shopping agent

Comparison-Shopping agents, also called shopbots, are Web software applications that can help online shoppers find lower price for commodities or services. Price comparison services was the earliest service a comparison-shopping agent provides. To search the price of a particular item, a comparison-shopping agent would search multiple online stores based on the keyword the online shopper provides. The keyword could be an ISBN number of a book or something like "iPod."

The first widely recognized comparison-shopping agent was BargainFinder developed by then Andersen Consulting and its SmartStore center.

- it is a an example of Semantic web
- They rely on wrappers: extensive programming required
- Wrappers need to be reprogrammed when an online store changes its outfit
- Wrappers extract information based on textual analysis
          1-Error-prone
          2-Limited information extracted

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