Post on 30-Nov-2014
description
© 2009 IBM Corporation
Conversational Internet:A natural language interface for webpages
Dale Lane – IBM United Kingdom
14 May 2013
dale.lane@uk.ibm.com
© 2012 IBM Corporation2
Challenge
© 2012 IBM Corporation3
Challenge
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Motivation
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Understanding the page : Identifying type
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Understanding the page : Identifying navigation options
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Understanding the page : Identifying calls-to-action
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Understanding the user : Retrieving information
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Understanding the user : Mouse actions
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Understanding the user : Mouse actions
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Understanding the user : Keyboard actions
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Understanding the user : Keyboard actions
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Understanding the user : Keyboard actions
© 2012 IBM Corporation14
Conversational Internet
Presenting an early-stage prototype being developed to explore the potential for question answering as an alternative approach to screen-readers for retrieving information from web pages
Architecture and approach inspired by active area of research and development in question answering on a knowledge derived from a corpus of documents(Ferucci, Lally, Chu-Carroll, et al) http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=6177717
© 2012 IBM Corporation15
Implementation
browser
extension
UIMA
LanguageWare
Java
client server
© 2012 IBM Corporation16
Implementation
new request new request
response with
conv. idresponse
follow-up request
request with
conv. id
“what can I do?”
“the options are...”
“I want to do...”
© 2012 IBM Corporation17
Implementation : Client
Firefox extension
Submits current state of the page to server for analysis
Training mode
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Implementation : Server
Analyzing the page
Processing user queries
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Implementation : Server : Understanding the page
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Implementation : Server : Understanding the page
What type of site is this?
Machine learning classifiers
Whitelists of known domains
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Implementation : Server : Understanding the page
What can we infer from markup used?
Semantic tags
ARIA
CSS class names
© 2012 IBM Corporation22
Implementation : Server : Understanding the page
What does the structure of the page layout suggest?
Machine learning models for common page elements
© 2012 IBM Corporation23
Implementation : Server : Understanding the page
What does the text of the page tell us?
Natural Language Processing using LanguageWare to recognize common forms of call-to-action
© 2012 IBM Corporation24
Implementation : Server : Responding to queries
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Implementation : Server : Responding to queries
Interpreting the query
NLP rules created with LanguageWare to map to closest known command type
WordNet to attempt matches using synonyms of unknown terms
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Implementation : Server : Responding to queries
Extracting the requested information
Information requested from page extracted from serialized CAS created by first pipeline, by retrieving sections with relevant annotations
© 2012 IBM Corporation27
Implementation : Server : Responding to queries
Preparing a response
Speech generated using Nuance NDev and streamed to client
© 2012 IBM Corporation28
Future work / Limitations
Use cases
Usability testing
RIA / AJAX sites
© 2012 IBM Corporation29
Paper submitted to W4A – http://goo.gl/3X2iv
Overview presentation– http://youtu.be/uS6oquJdgbw
Demonstration of the prototype – http://youtu.be/tSGyPCcO-bY
Dale Lane
dale.lane@uk.ibm.com
@dalelane