DCL: A disjunctive learning algorithm for rule extraction

1999-01-01
Abu-Soud, SM
Tolun, MR
Most concept learning algorithms are conjunctive algorithms, i.e. generate production rules that include AND-operators only. This paper examines the induction of disjunctive concepts or descriptions. We present an algorithm, called DCL, for disjunctive concept learning that partitions the training data according to class descriptions. This algorithm is an improved version of our conjunctive learning algorithm, ILA. DCL generates production rules with AND/OR-operators from a set of training examples. This approach is particularly useful for creating multiple decision boundaries. We also describe application of DCL to a range of training sets with different number of attributes and classes. The results obtained show that DCL can produce fewer number of rule than most of the algorithms used for inductive concept learning, and also can classify considerably more unseen examples than conjunctive algorithms.
MULTIPLE APPROACHES TO INTELLIGENT SYSTEMS, PROCEEDINGS

Suggestions

Hierarchical Parallelization of the Multilevel Fast Multipole Algorithm (MLFMA)
Gurel, Levent; Ergül, Özgür Salih (2013-02-01)
Due to its O(NlogN) complexity, the multilevel fast multipole algorithm (MLFMA) is one of the most prized algorithms of computational electromagnetics and certain other disciplines. Various implementations of this algorithm have been used for rigorous solutions of large-scale scattering, radiation, and miscellaneous other electromagnetics problems involving 3-D objects with arbitrary geometries. Parallelization of MLFMA is crucial for solving real-life problems discretized with hundreds of millions of unkno...
Basis reduction and the complexity of branch-and-bound
Pataki, Gábor; Tural, Mustafa Kemal; Wong, Erick B. (2010-05-06)
The classical branch-and-bound algorithm for the integer feasibility problem [GRAPHICS] has exponential worst case complexity. We prove that, it. is surprisingly efficient on reformulations of (01), in which the columns of the constraint, matrix are short and near orthogonal, i e, a reduced basis of the generated lattice. when the entries of A ale from {1, ,M} for a large enough M, branch-and-bound solves almost all reformulated instances at the root. node For all A matrices we prove an upper bound on th...
Efficient and Accurate Electromagnetic Optimizations Based on Approximate Forms of the Multilevel Fast Multipole Algorithm
Onol, Can; Karaosmanoglu, Bariscan; Ergül, Özgür Salih (2016-01-01)
We present electromagnetic optimizations by heuristic algorithms supported by approximate forms of the multilevel fast multipole algorithm (MLFMA). Optimizations of complex structures, such as antennas, are performed by considering each trial as an electromagnetic problem that can be analyzed via MLFMA and its approximate forms. A dynamic accuracy control is utilized in order to increase the efficiency of optimizations. Specifically, in the proposed scheme, the accuracy is used as a parameter of the optimiz...
Optimizations of antennas using heuristic algorithms supported by the multilevel fast multipole algorithm
Önol, Can; Ergül, Özgür Salih; Department of Electrical and Electronics Engineering (2015)
In this study, an optimization environment based on heuristic algorithms supported by the multilevel fast multipole algorithm (MLFMA) is presented for different antenna problems involving either excitation or geometry optimizations. The heuristic algorithms are implemented in-house by aiming more effective interactions between electromagnetic solvers and optimization algorithms, instead of black box interactions. Excitation optimizations of various array geometries for desired radiation characteristics are ...
In praise of laziness: A lazy strategy for web information extraction
Ozcan, Rifat; Altıngövde, İsmail Sengör; Ulusoy, Özgür (2012-04-27)
A large number of Web information extraction algorithms are based on machine learning techniques. For such extraction algorithms, we propose employing a lazy learning strategy to build a specialized model for each test instance to improve the extraction accuracy and avoid the disadvantages of constructing a single general model.
Citation Formats
S. Abu-Soud and M. Tolun, “DCL: A disjunctive learning algorithm for rule extraction,” MULTIPLE APPROACHES TO INTELLIGENT SYSTEMS, PROCEEDINGS, pp. 669–678, 1999, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66070.