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1017 Publications


  • Investigations into Lamarckism, Baldwinism and Local Search in Grammatical Evolution Guided by Reinforcement

    Jack Mario Mingo; Ricardo Aler; DarĂ­o Maravall; Javier de Lope (2013)
    Grammatical Evolution Guided by Reinforcement is an extension of Grammatical Evolution that tries to improve the evolutionary process adding break a learning process for all the individuals in the population. With this aim, each individual is given a chance to learn through a reinforcement learning mechanism during its lifetime. The learning process is completed with a Lamarckian mechanism in which an original genotype is replaced by the best learnt genotype for the individual. In a way, Gram...

    An Operational Semantics Approach to Disciplined Exceptions in Logic Programming

    T. Shih; F. Lin (2012)
    This paper presents a disciplined exception mechanism based on continuations. Continuations provide mechanisms for labels and jumps. We present a mechanism to preserve a Prolog program continuation to be invoked at a later point. This mechanism is used in the design of exception signals, handlers, and  exception continuations for logic programs. An exception continuation specifies how a computation should continue (e.g. resume, undo, alternate, or terminate) after an exception is raised....

    Personalizing and Improving Resource Recommendation by Analyzing Users Preferences in Social Tagging Activities

    Samia Beldjoudi; Hassina Seridi; Catherine Faron Zucker (2017)
    Collaborative tagging which is the keystone of the social practices of web 2.0 has been highly developed in the last few years. In this paper, we propose a new method to analyze user profiles according to their tagging activity in order to improve resource recommendation. We base upon association rules which is a powerful method to discover interesting relationships among large datasets on the web. Focusing on association rules we can find correlations between tags in a social network. Our ai...

    A Cover-Merging-Based Algorithm for the Longest Increasing Subsequence in a Sliding Window Problem

    Sebastian Deorowicz (2013)
    A longest increasing subsequence problem (LIS) is a well-known combinatorial problem with applications mainly in bioinformatics, where it is used in various projects on DNA sequences. Recently, a number of generalisations of this problem were proposed. One of them is to find an LIS among all fixed-size windows of the input sequence (LISW). We propose an algorithm for the LISW problem based on cover representation of the sequence that outperforms the existing methods for some class of the inpu...

    Using a Full Spectral Raytracer for Calculating Light Microclimate in Functional-Structural Plant Modelling

    Michael Henke; Gerhard H. Buck-Sorlin (2018)
    Raytracers that allow the spatially explicit calculation of the fate of light beams in a 3D scene allow the consideration of shading, reflected and transmitted light in functional-structural plant models (FSPM). However, the spectrum of visible light also has an effect on cellular and growth processes. This recently created the interest to extend this modelling paradigm allowing the representation of detailed spectra instead of monochromatic or white light and to extend existing FSPM platform...
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