| tech,5-2-P99-1022,ak | </term> . It proposes and evaluates new <term> | cluster generation | </term> , <term> hierarchical smoothing </term> | #30636 It proposes and evaluates new cluster generation , hierarchical smoothing and adaptive topic-probability estimation techniques. | |
| other,19-4-P99-1022,ak | </term> ( 10.5 % overall and 33.5 % on <term> | target vocabulary | </term> ) . In this paper we describe a | #30675 Experiments on the Broadcast News corpus show significant improvement in perplexity (10.5% overall and 33.5% on target vocabulary ). |
