Eric Brill at MSR is looking at a way to get straight answers to straight questions. His initial attempt is a system called “Ask MSR” and it uses information on web pages to answer questions for which there is a one word or phrase answer – like “When was Marilyn Monroe born?”
MSR starts by looking at the questions from several angles; identifying the verb, changing tense, and then moving it around in the sentence – “Marilyn was Monroe born”, “Marilyn Monroe was born”, and so on.
The phrases are then sent to a search engine and matches to the word strings are retrieved. While the method appears to be somewhat indiscriminate, there are probably very few ‘matches’ to phrases that make little sense.
After the web pages are retrieved they are scanned for possible answers and then ranked by frequency. The correct answer usually appears in one of the first 3 places about 75% of the time. May not sound very good but the person that initiated the search is the second filter. If the answer is still not obvious, clicking on the results links will take you to pages that support the answer.
Sure would like to see something on Channel 9 about Dr. Brill’s work – access to the working prototype would be great.
Need more information? Click here for an analysis of AskMSR and here for the Economist.com article From factoids to facts.