List of Figures

1. Three topic segments within a news feed
2. Ambiguous cue-phrases
3. Test word set for system evaluation
4. Full system graph output on the test word set
5. Honours advising session, $ps=20$ $bs=6$
6. Location of topic change 1 from figure 5.3, showing distance between detected and real topic boundaries (`break' tag is hand-marked, `autobreak' is system-determined)
7. Context of missed topic change (manual topic change 5) in figure 5.3
8. American Culture advising session, $ps=20$ $bs=6$
9. CMU dialogue, $ps=20$ $bs=6$
10. CMU dialogue 2, $ps=20$ $bs=6$
11. ICSI dialogue, $ps=20$ $bs=6$
12. ICSI dialogue 2, $ps=20$ $bs=6$
13. LDC dialogue, $ps=20$ $bs=6$
14. LDC dialogue 2, $ps=20$ $bs=6$
15. NIST dialogue, $ps=20$ $bs=6$
16. NIST dialogue 2, $ps=20$ $bs=6$
17. A snippet from figure 5.13's source dialogue, showing unexpected topic-boundary marking style
18. Honours Advising dialogue: $ps=10$ $bs=12$
19. Honours Advising dialogue: $ps=40$ $bs=3$