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DISOPT
2008
82views more  DISOPT 2008»
15 years 2 months ago
Note on pseudolattices, lattices and submodular linear programs
A pseudolattice L is a poset with lattice-type binary operations. Assuming that the pseudolattice permits a modular representation as a family of subsets of a set U with certain c...
Ulrich Faigle, Britta Peis
ICFP
2004
ACM
16 years 2 months ago
Types for path correctness of XML queries
d Abstract) Dario Colazzo1 , Giorgio Ghelli2 , Paolo Manghi2 , and Carlo Sartiani2 1 LRI - Universit?e Paris Sud 2 Dipartimento di Informatica - Universit`a di Pisa If a subexpress...
Dario Colazzo, Giorgio Ghelli, Paolo Manghi, Carlo...
112
Voted
UM
2001
Springer
15 years 7 months ago
User Modelling as an Aid for Human Web Assistants
This paper explores how user modelling can work as an aid for human assistants in a user support system for web sites. Information about the user can facilitate for the assistant t...
Johan Aberg, Nahid Shahmehri
ICALP
1990
Springer
15 years 6 months ago
Determining the Separation of Preprocessed Polyhedra - A Unified Approach
We show how (now familiar) hierarchical representations of (convex) polyhedra can be used to answer various separation queries efficiently (in a number of cases, optimally). Our e...
David P. Dobkin, David G. Kirkpatrick
LICS
1989
IEEE
15 years 6 months ago
Negation As Refutation
A refutation mechanism is introduced into logic programming, dual to the usual proof mechanism; then negation is treated via refutation. A four-valued logic is appropriate for the...
Melvin Fitting