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LACL
1998
Springer
15 years 1 months ago
Lambek Calculus Proofs and Tree Automata
Abstract. We investigate natural deduction proofs of the Lambek calculus from the point of view of tree automata. The main result is that the set of proofs of the Lambek calculus c...
Hans-Jörg Tiede
DBPL
2007
Springer
98views Database» more  DBPL 2007»
15 years 4 months ago
Towards Practical Typechecking for Macro Tree Transducers
Macro tree transducers (mtt) are an important model that both covers many useful XML transformations and allows decidable exact typechecking. This paper reports our first step tow...
Alain Frisch, Haruo Hosoya
ICALP
2005
Springer
15 years 3 months ago
How Well Can Primal-Dual and Local-Ratio Algorithms Perform?
We define an algorithmic paradigm, the stack model, that captures many primal-dual and local-ratio algorithms for approximating covering and packing problems. The stack model is ...
Allan Borodin, David Cashman, Avner Magen
PODC
2010
ACM
15 years 1 months ago
Brief announcement: tree decomposition for faster concurrent data structures
We show how to partition data structures representable by directed acyclic graphs, i.e. rooted trees, to allow for efficient complex operations, which lie beyond inserts, deletes ...
Johannes Schneider, Roger Wattenhofer
NJC
2006
102views more  NJC 2006»
14 years 9 months ago
Online Evaluation of Regular Tree Queries
Regular tree queries (RTQs) are a class of queries considered especially relevant for the expressiveness and evaluation of XML query languages. The algorithms proposed so far for ...
Alexandru Berlea