16 research outputs found
Applied Metaheuristic Computing
For decades, Applied Metaheuristic Computing (AMC) has been a prevailing optimization technique for tackling perplexing engineering and business problems, such as scheduling, routing, ordering, bin packing, assignment, facility layout planning, among others. This is partly because the classic exact methods are constrained with prior assumptions, and partly due to the heuristics being problem-dependent and lacking generalization. AMC, on the contrary, guides the course of low-level heuristics to search beyond the local optimality, which impairs the capability of traditional computation methods. This topic series has collected quality papers proposing cutting-edge methodology and innovative applications which drive the advances of AMC
Towards Comprehensive Foundations of Computational Intelligence
Abstract. Although computational intelligence (CI) covers a vast variety of different methods it still lacks an integrative theory. Several proposals for CI foundations are discussed: computing and cognition as compression, meta-learning as search in the space of data models, (dis)similarity based methods providing a framework for such meta-learning, and a more general approach based on chains of transformations. Many useful transformations that extract information from features are discussed. Heterogeneous adaptive systems are presented as particular example of transformation-based systems, and the goal of learning is redefined to facilitate creation of simpler data models. The need to understand data structures leads to techniques for logical and prototype-based rule extraction, and to generation of multiple alternative models, while the need to increase predictive power of adaptive models leads to committees of competent models. Learning from partial observations is a natural extension towards reasoning based on perceptions, and an approach to intuitive solving of such problems is presented. Throughout the paper neurocognitive inspirations are frequently used and are especially important in modeling of the higher cognitive functions. Promising directions such as liquid and laminar computing are identified and many open problems presented.
Combined optimization algorithms applied to pattern classification
Accurate classification by minimizing the error on test samples is the main
goal in pattern classification. Combinatorial optimization is a well-known
method for solving minimization problems, however, only a few examples of
classifiers axe described in the literature where combinatorial optimization is
used in pattern classification. Recently, there has been a growing interest
in combining classifiers and improving the consensus of results for a greater
accuracy. In the light of the "No Ree Lunch Theorems", we analyse the combination
of simulated annealing, a powerful combinatorial optimization method
that produces high quality results, with the classical perceptron algorithm.
This combination is called LSA machine. Our analysis aims at finding paradigms
for problem-dependent parameter settings that ensure high classifica,
tion results. Our computational experiments on a large number of benchmark
problems lead to results that either outperform or axe at least competitive to
results published in the literature. Apart from paxameter settings, our analysis
focuses on a difficult problem in computation theory, namely the network
complexity problem. The depth vs size problem of neural networks is one of
the hardest problems in theoretical computing, with very little progress over
the past decades. In order to investigate this problem, we introduce a new
recursive learning method for training hidden layers in constant depth circuits.
Our findings make contributions to a) the field of Machine Learning, as the
proposed method is applicable in training feedforward neural networks, and to
b) the field of circuit complexity by proposing an upper bound for the number
of hidden units sufficient to achieve a high classification rate. One of the major
findings of our research is that the size of the network can be bounded by
the input size of the problem and an approximate upper bound of 8 + √2n/n
threshold gates as being sufficient for a small error rate, where n := log/SL
and SL is the training set
Applied Methuerstic computing
For decades, Applied Metaheuristic Computing (AMC) has been a prevailing optimization technique for tackling perplexing engineering and business problems, such as scheduling, routing, ordering, bin packing, assignment, facility layout planning, among others. This is partly because the classic exact methods are constrained with prior assumptions, and partly due to the heuristics being problem-dependent and lacking generalization. AMC, on the contrary, guides the course of low-level heuristics to search beyond the local optimality, which impairs the capability of traditional computation methods. This topic series has collected quality papers proposing cutting-edge methodology and innovative applications which drive the advances of AMC
Game Theory Relaunched
The game is on. Do you know how to play? Game theory sets out to explore what can be said about making decisions which go beyond accepting the rules of a game. Since 1942, a well elaborated mathematical apparatus has been developed to do so; but there is more. During the last three decades game theoretic reasoning has popped up in many other fields as well - from engineering to biology and psychology. New simulation tools and network analysis have made game theory omnipresent these days. This book collects recent research papers in game theory, which come from diverse scientific communities all across the world; they combine many different fields like economics, politics, history, engineering, mathematics, physics, and psychology. All of them have as a common denominator some method of game theory. Enjoy
Intelligent Systems
This book is dedicated to intelligent systems of broad-spectrum application, such as personal and social biosafety or use of intelligent sensory micro-nanosystems such as "e-nose", "e-tongue" and "e-eye". In addition to that, effective acquiring information, knowledge management and improved knowledge transfer in any media, as well as modeling its information content using meta-and hyper heuristics and semantic reasoning all benefit from the systems covered in this book. Intelligent systems can also be applied in education and generating the intelligent distributed eLearning architecture, as well as in a large number of technical fields, such as industrial design, manufacturing and utilization, e.g., in precision agriculture, cartography, electric power distribution systems, intelligent building management systems, drilling operations etc. Furthermore, decision making using fuzzy logic models, computational recognition of comprehension uncertainty and the joint synthesis of goals and means of intelligent behavior biosystems, as well as diagnostic and human support in the healthcare environment have also been made easier