How to Pick Up How to Pick Up Women…Women…

Using IR StrategiesUsing IR Strategies

By Mike WooldridgeBy Mike Wooldridge

May 9, 2006May 9, 2006

User with User with “information” “information”

needneed

Collection of “documents”Collection of “documents”

Objective: Objective:

Formulate a query that returns Formulate a query that returns relevant documentsrelevant documents

Too Few ResultsToo Few Results

““Anyone want to see the Anyone want to see the waterbed in my van?”waterbed in my van?”

Too Many ResultsToo Many Results

““I’m Brad Pitt.”I’m Brad Pitt.”

Controlled VocabularyControlled Vocabulary

Relevance FeedbackRelevance Feedback

““Anyone want to see the Anyone want to see the waterbed in my van?”waterbed in my van?”

Revised QueryRevised Query

““Anyone want to see the Anyone want to see the swimming pool at my mansion?”swimming pool at my mansion?”

Term WeightingTerm Weighting

““Anyone want to see the Anyone want to see the

3 swimming pools at 3 swimming pools at

my 9-bedroom mansion?” my 9-bedroom mansion?”

Cross-Language RetrievalCross-Language Retrieval

““Can I buy you Can I buy you a drink?”a drink?”

Cross-Language RetrievalCross-Language Retrieval

““¿¿Puedo le Puedo le compro una compro una

bebida?”bebida?”

Precision vs. Recall vs. Precision vs. Recall vs. Blood-Alcohol ContentBlood-Alcohol Content

Precision vs. Recall vs. Precision vs. Recall vs. Blood-Alcohol ContentBlood-Alcohol Content

Thanks, Ray!Thanks, Ray!