INFO 340 - May 10, 2004 Notes By: Egaas, Fortier, Prins Readings > This Week: Chapter 1 & 2 > Next Week: Chapter 3 Topics > Documents > Document indexing > Basic indexing algorithm A Pretty Picture [ ] -> [ | ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] [ ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] -> [ | ] [ | ] = Postings [ Doc ID | Keyword Position ]-> Documents > The 'unit' of retrieval in IR > Definition: - 'A passage of free text' - Web Page > Words PLUS structure ... > MP3 Document Van Morrison Moon Dance 250 http://www.stolenmusic.net/moon.mp3 Critically acclaimed, Moon Dance, is a song about love Bag of keywords: Van Morrison Moon Dance mp3 moon.mp3 www.stonlenmusic.net