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Vision

Vision. users have access to a personal digital library of information from the WWW their library is an integrated database of web sources important to them. Data integration. access a variety of sources of data under one unified schema. Source 1. Mediated schema. Source 2. New source.

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Vision

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  1. Vision users have access to a personal digital library of information from the WWW their library is an integrated database of web sources important to them

  2. Data integration access a variety of sources of data under one unified schema Source 1 Mediated schema Source 2 New source Source 3 How can the user incorporate a new source?

  3. Previous Wrapper Generation Systems • HLRT • Ariadne?

  4. End-user programming empower the consumer to customize and extend existing software • Preferences/defaults • Scripting languages • Macros • Programming by demonstration • exploits user’s expertise at task • requires no programming background • may represent a wide variety of programs

  5. ICE-9 Wrapper Generation User demonstrates how to find important information by selecting it in text window System learns a generalized representation of the user’s actions as a program/wrapper

  6. ICE-9 Structure Tessa’s tree (sorta)

  7. ICE-9 Talks Back Recent work has focused on interaction • collaborative demonstration: based on probability of hypotheses, system can recommend actions at a given step or solicit hints • finding the best examples to demonstrate: based on information gain, system can find the most valuable example to demonstrate

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