1,840 research outputs found
The Responsibility of Law Schools: Educating Lawyers as Counselors and Problem Solvers
American legal education is as strong as ever in doctrine and legal analysis; however, it is strikingly weak in teaching other foundational skills and knowledge that lawyers need as counselors, problem solvers and negotiators. Brest proposes a series of advanced courses that integrate the fundamental lawyering skills of counseling, problem solving and negotiation with insights from other disciplines
Using Differential Evolution for the Graph Coloring
Differential evolution was developed for reliable and versatile function
optimization. It has also become interesting for other domains because of its
ease to use. In this paper, we posed the question of whether differential
evolution can also be used by solving of the combinatorial optimization
problems, and in particular, for the graph coloring problem. Therefore, a
hybrid self-adaptive differential evolution algorithm for graph coloring was
proposed that is comparable with the best heuristics for graph coloring today,
i.e. Tabucol of Hertz and de Werra and the hybrid evolutionary algorithm of
Galinier and Hao. We have focused on the graph 3-coloring. Therefore, the
evolutionary algorithm with method SAW of Eiben et al., which achieved
excellent results for this kind of graphs, was also incorporated into this
study. The extensive experiments show that the differential evolution could
become a competitive tool for the solving of graph coloring problem in the
future
The Responsibility of Law Schools: Educating Lawyers as Counselors and Problem Solvers
American legal education is as strong as ever in doctrine and legal analysis; however, it is strikingly weak in teaching other foundational skills and knowledge that lawyers need as counselors, problem solvers and negotiators. Brest proposes a series of advanced courses that integrate the fundamental lawyering skills of counseling, problem solving and negotiation with insights from other disciplines
Low-Autocorrelation Binary Sequences: On Improved Merit Factors and Runtime Predictions to Achieve Them
The search for binary sequences with a high figure of merit, known as the low
autocorrelation binary sequence (}) problem, represents a formidable
computational challenge. To mitigate the computational constraints of the
problem, we consider solvers that accept odd values of sequence length and
return solutions for skew-symmetric binary sequences only -- with the
consequence that not all best solutions under this constraint will be optimal
for each . In order to improve both, the search for best merit factor
the asymptotic runtime performance, we instrumented three stochastic solvers,
the first two are state-of-the-art solvers that rely on variants of memetic and
tabu search ( and ), the third solver () organizes
the search as a sequence of independent contiguous self-avoiding walk segments.
By adapting a rigorous statistical methodology to performance testing of all
three combinatorial solvers, experiments show that the solver with the best
asymptotic average-case performance, , has the
best chance of finding solutions that improve, as increases, figures of
merit reported to date. The same methodology can be applied to engineering new
solvers that may return merit factors even closer to the conjectured
asymptotic value of 12.3248
Protein Folding Optimization using Differential Evolution Extended with Local Search and Component Reinitialization
This paper presents a novel Differential Evolution algorithm for protein
folding optimization that is applied to a three-dimensional AB off-lattice
model. The proposed algorithm includes two new mechanisms. A local search is
used to improve convergence speed and to reduce the runtime complexity of the
energy calculation. For this purpose, a local movement is introduced within the
local search. The designed evolutionary algorithm has fast convergence speed
and, therefore, when it is trapped into the local optimum or a relatively good
solution is located, it is hard to locate a better similar solution. The
similar solution is different from the good solution in only a few components.
A component reinitialization method is designed to mitigate this problem. Both
the new mechanisms and the proposed algorithm were analyzed on well-known amino
acid sequences that are used frequently in the literature. Experimental results
show that the employed new mechanisms improve the efficiency of our algorithm
and that the proposed algorithm is superior to other state-of-the-art
algorithms. It obtained a hit ratio of 100% for sequences up to 18 monomers,
within a budget of solution evaluations. New best-known solutions
were obtained for most of the sequences. The existence of the symmetric
best-known solutions is also demonstrated in the paper.Comment: 22 pages, 8 figures, 10 tables, journa
Memetic Artificial Bee Colony Algorithm for Large-Scale Global Optimization
Memetic computation (MC) has emerged recently as a new paradigm of efficient
algorithms for solving the hardest optimization problems. On the other hand,
artificial bees colony (ABC) algorithms demonstrate good performances when
solving continuous and combinatorial optimization problems. This study tries to
use these technologies under the same roof. As a result, a memetic ABC (MABC)
algorithm has been developed that is hybridized with two local search
heuristics: the Nelder-Mead algorithm (NMA) and the random walk with direction
exploitation (RWDE). The former is attended more towards exploration, while the
latter more towards exploitation of the search space. The stochastic adaptation
rule was employed in order to control the balancing between exploration and
exploitation. This MABC algorithm was applied to a Special suite on Large Scale
Continuous Global Optimization at the 2012 IEEE Congress on Evolutionary
Computation. The obtained results the MABC are comparable with the results of
DECC-G, DECC-G*, and MLCC.Comment: CONFERENCE: IEEE Congress on Evolutionary Computation, Brisbane,
Australia, 201
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