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ACL
1994
14 years 11 months ago
Relating Complexity to Practical Performance in Parsing with Wide-Coverage Unification Grammars
The paper demonstrates that exponential complexities with respect to grammar size and input length have little impact on the performance of three unification-based parsing algorit...
John Carroll
ECAI
1992
Springer
15 years 1 months ago
Phenomenology, Representations and Complexity
Abstract. The paper refutes the general phenomenological argument that knowledge cannot be completely represented by symbols and, hence, symbolic AI does not work. Moreover, the vi...
Achim G. Hoffmann
3DPH
2009
145views Healthcare» more  3DPH 2009»
14 years 7 months ago
The Persistent Morse Complex Segmentation of a 3-Manifold
We describe an algorithm for segmenting three-dimensional medical imaging data modeled as a continuous function on a 3-manifold. It is related to watershed algorithms developed in ...
Herbert Edelsbrunner, John Harer
COMPGEOM
2003
ACM
15 years 2 months ago
Morse-smale complexes for piecewise linear 3-manifolds
We define the Morse-Smale complex of a Morse function over a 3-manifold as the overlay of the descending and ascending manifolds of all critical points. In the generic case, its ...
Herbert Edelsbrunner, John Harer, Vijay Natarajan,...
ATAL
2006
Springer
15 years 1 months ago
Junta distributions and the average-case complexity of manipulating elections
Encouraging voters to truthfully reveal their preferences in an election has long been an important issue. Previous studies have shown that some voting protocols are hard to manip...
Ariel D. Procaccia, Jeffrey S. Rosenschein