Sciweavers

ACL
2001
13 years 5 months ago
An Algebra for Semantic Construction in Constraint-based Grammars
We develop a framework for formalizing semantic construction within grammars expressed in typed feature structure logics, including HPSG. The approach provides an alternative to t...
Ann A. Copestake, Alex Lascarides, Dan Flickinger
ACL
2001
13 years 5 months ago
Constraints on Strong Generative Power
We consider the question "How much strong generative power can be squeezed out of a formal system without increasing its weak generative power?" and propose some theoret...
David Chiang
ACL
2001
13 years 5 months ago
Immediate-Head Parsing for Language Models
We present two language models based upon an "immediate-head" parser -our name for a parser that conditions all events below a constituent c upon the head of c. While al...
Eugene Charniak
ACL
2001
13 years 5 months ago
Non-Verbal Cues for Discourse Structure
This paper addresses the issue of designing embodied conversational agents that exhibit appropriate posture shifts during dialogues with human users. Previous research has noted t...
Justine Cassell, Yukiko I. Nakano, Timothy W. Bick...
ACL
2001
13 years 5 months ago
From RAGS to RICHES: Exploiting the Potential of a Flexible Generation Architecture
The RAGS proposals for generic specification of NLG systems includes a detailed account of data representation, but only an outline view of processing aspects. In this paper we in...
Lynne J. Cahill, John Carroll, Roger Evans, Daniel...
ACL
2001
13 years 5 months ago
Towards Automatic Classification of Discourse Elements in Essays
Educators are interested in essay evaluation systems that include feedback about writing features that can facilitate the essay revision process. For instance, if the thesis state...
Jill Burstein, Daniel Marcu, Slava Andreyev, Marti...
ACL
2001
13 years 5 months ago
Detecting Problematic Turns in Human-Machine Interactions: Rule-induction Versus Memory-based Learning Approaches
We address the issue of on-line detection of communication problems in spoken dialogue systems. The usefulness is investigated of the sequence of system question types and the wor...
Antal van den Bosch, Emiel Krahmer, Marc Swerts
ACL
2001
13 years 5 months ago
Underspecified Beta Reduction
For ambiguous sentences, traditional semantics construction produces large numbers of higher-order formulas, which must then be -reduced individually. Underspecified versions can ...
Manuel Bodirsky, Katrin Erk, Alexander Koller, Joa...
ACL
2001
13 years 5 months ago
What is the Minimal Set of Fragments that Achieves Maximal Parse Accuracy?
We aim at finding the minimal set of fragments which achieves maximal parse accuracy in Data Oriented Parsing. Experiments with the Penn Wall Street Journal treebank show that cou...
Rens Bod
ACL
2001
13 years 5 months ago
Low-cost, High-Performance Translation Retrieval: Dumber is Better
In this paper, we compare the relative effects of segment order, segmentation and segment contiguity on the retrieval performance of a translation memory system. We take a selecti...
Timothy Baldwin