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EMNLP
2007
15 years 3 months ago
Probabilistic Models of Nonprojective Dependency Trees
A notable gap in research on statistical dependency parsing is a proper conditional probability distribution over nonprojective dependency trees for a given sentence. We exploit t...
David A. Smith, Noah A. Smith
ISCIS
2009
Springer
15 years 6 months ago
Calculating the VC-dimension of decision trees
—We propose an exhaustive search algorithm that calculates the VC-dimension of univariate decision trees with binary features. The VC-dimension of the univariate decision tree wi...
Ozlem Asian, Olcay Taner Yildiz, Ethem Alpaydin
KDD
1995
ACM
140views Data Mining» more  KDD 1995»
15 years 5 months ago
Decision Tree Induction: How Effective is the Greedy Heuristic?
Mostexisting decision tree systemsuse a greedyapproachto inducetrees -- locally optimalsplits are inducedat every node of the tree. Althoughthe greedy approachis suboptimal,it is ...
Sreerama K. Murthy, Steven Salzberg
ICDE
2003
IEEE
209views Database» more  ICDE 2003»
16 years 3 months ago
An Evaluation of Regular Path Expressions with Qualifiers against XML Streams
This paper presents SPEX, a streamed and progressive evaluation of regular path expressions with XPath-like qualifiers against XML streams. SPEX proceeds as follows. An expression...
Dan Olteanu, François Bry, Tobias Kiesling
GIS
2009
ACM
15 years 8 months ago
Tree detection from aerial imagery
We propose an automatic approach to tree detection from aerial imagery. First a pixel-level classifier is trained to assign a {tree, non-tree} label to each pixel in an aerial im...
Lin Yang, Xiaqing Wu, Emil Praun, Xiaoxu Ma