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» Searching Trees: An Essay
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KDD
2007
ACM
177views Data Mining» more  KDD 2007»
16 years 8 days ago
Mining optimal decision trees from itemset lattices
We present DL8, an exact algorithm for finding a decision tree that optimizes a ranking function under size, depth, accuracy and leaf constraints. Because the discovery of optimal...
Élisa Fromont, Siegfried Nijssen
ACSC
2006
IEEE
15 years 6 months ago
Improvements of TLAESA nearest neighbour search algorithm and extension to approximation search
Nearest neighbour (NN) searches and k nearest neighbour (k-NN) searches are widely used in pattern recognition and image retrieval. An NN (k-NN) search finds the closest object (...
Ken Tokoro, Kazuaki Yamaguchi, Sumio Masuda
GECCO
2004
Springer
129views Optimization» more  GECCO 2004»
15 years 5 months ago
Encoding Bounded-Diameter Spanning Trees with Permutations and with Random Keys
Permutations of vertices can represent constrained spanning trees for evolutionary search via a decoder based on Prim’s algorithm, and random keys can represent permutations. Tho...
Bryant A. Julstrom
WABI
2004
Springer
15 years 5 months ago
Novel Tree Edit Operations for RNA Secondary Structure Comparison
We describe an algorithm for comparing two RNA secondary structures coded in the form of trees that introduces two novel operations, called node fusion and edge fusion, besides the...
Julien Allali, Marie-France Sagot
DIAGRAMS
2008
Springer
15 years 1 months ago
Enhancing State-Space Tree Diagrams for Collaborative Problem Solving
State-space search methods in problem solving have often been illustrated using tree diagrams. We explore a set of issues related to coordination in collaborative problem solving a...
Steven L. Tanimoto