{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}


Term sas pap wh affection 115 58 20 jealous 10 7 11

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview:   These are very sparse vectors – most entries are zero §༊  §༊  §༊  §༊  Introduc)on to Informa)on Retrieval Sec. 6.3 Queries as vectors §༊  Key idea 1: Do the same for queries: represent them as vectors in the space §༊  Key idea 2: Rank documents according to their proximity to the query in this space §༊  proximity = similarity of vectors §༊  proximity ≈ inverse of distance §༊  Recall: We do this because we want to get away from the you’re- either- in- or- out Boolean model §༊  Instead: rank more relevant documents higher than less relevant documents Introduc)on to Informa)on Retrieval Sec. 6.3 Formalizing vector space proximity §༊  First cut: distance between two points §༊  ( = distance between the end points of the two vectors) §...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online