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ACL
2003
13 years 9 months ago
Hierarchical Directed Acyclic Graph Kernel: Methods for Structured Natural Language Data
This paper proposes the “Hierarchical Directed Acyclic Graph (HDAG) Kernel” for structured natural language data. The HDAG Kernel directly accepts several levels of both chunk...
Jun Suzuki, Tsutomu Hirao, Yutaka Sasaki, Eisaku M...
ICDE
2009
IEEE
144views Database» more  ICDE 2009»
14 years 9 months ago
Reachability Indexes for Relational Keyword Search
Due to its considerable ease of use, relational keyword search (R-KWS) has become increasingly popular. Its simplicity, however, comes at the cost of intensive query processing. Sp...
Alexander Markowetz, Yin Yang, Dimitris Papadias
JGAA
2007
87views more  JGAA 2007»
13 years 7 months ago
A 2.5D Hierarchical Drawing of Directed Graphs
We introduce a new graph drawing convention for 2.5D hierarchical drawings of directed graphs. The vertex set is partitioned both into layers of vertices drawn in parallel planes ...
Seok-Hee Hong, Nikola S. Nikolov, Alexandre Tarass...
CORR
2010
Springer
96views Education» more  CORR 2010»
13 years 7 months ago
Realizing evaluation strategies by hierarchical graph rewriting
We discuss the realization of evaluation strategies for the concurrent constraint-based functional language ccfl within the translation schemata when compiling ccfl programs into t...
Petra Hofstedt
ICRA
2006
IEEE
134views Robotics» more  ICRA 2006»
14 years 1 months ago
Hierarchical Map Building and Planning based on Graph Partitioning
— Mobile robot localization and navigation requires a map - the robot’s internal representation of the environment. A common problem is that path planning becomes very ineffic...
Zoran Zivkovic, Bram Bakker, Ben J. A. Kröse