Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Formal Concept Analysis"”.
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Formal Concept Analysis Methods for Description Logics
… to Description Logics (DLs) research by means of Formal Concept Analysis (FCA) methods: supporting bottom-up construction of DL knowledge bases, and completing DL knowledge bases. Its contribution to FCA research is on the computational complexity of computing generators of closed sets.
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Discovering the hidden knowledge in transaction data through formal concept analysis
… how it can be exposed through the application of Formal Concept Analysis (FCA).</p> <p>Enterprise systems capture data in a transaction structure so that they can provide information that seeks to align with the knowledge that decision-makers use to achieve business goals. With the emergence of …
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A combinatorial approach to scientific exploration of gene expression data: An integrative method using Formal Concept Analysis for the comparative analysis of microarray data
Functional genetics is the study of the genes present in a genome of an organism, the complex interplay of all genes and their environment being the primary focus of study. The motivation for such studies is the premise that gene expression patterns in a cell are characteristic of its current …
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Multirretículos y reducción de atributos en retículos de conceptos multiadjuntos
… in the eighties by B. Ganter and R. Wille, Formal Concept Analysis has become an appealing research topic. It is a theory of data analysis which identifies conceptual structures among data sets. Specifically, it is a tool for extracting pieces of information from databases that contain a set …
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Relational Exploration
… Representation are Description Logics (DL) and Formal Concept Analysis (FCA). While DL concentrates on characterizing domains via logical statements and inferring knowledge from these characterizations, FCA builds conceptual hierarchies on the basis of present data. This work introduces …
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Data mining using L-fuzzy concept analysis.
… (yes-no) context. Then the standard methods of formal concept analysis were applied to this crisp context. In our proposal, we will handle a many-valued context as is, i.e., without transforming it into a crisp one. The advantage of this approach is that we work with the original data without …
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Knowledge Management Enviroments for High Throughput Biology
… data. Starting from a theoretical ba- sis, FCA (Formal Concept Analysis) an applied branch of lattice theory, is used in this thesis to develop a file system that automatically structures itself by it’s contents. The procedure of extracting concepts from data sets is examined. The system also …
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An exposition of the nature of volunteered geographical information and its suitability for integration into spatial data infrastructures
This thesis presents an analysis of the nature of volunteered geographical information (VGI) and on its applicability for use in a spatial data infrastructure (SDI) to supplement official and commercial sources, particularly given the ease with which ordinary people can document their environment, …
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Formal Design Concept And Participant Behavior Analysis For Crowdsourcing Design
… has emerged as a new design resource for conceptual design process and multiple crowdsourcing services provide an opportunity for design idea collection and concept generation by crowds. However, few formal methods are available to extract and evaluate design concepts from the activities …
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Automating business intelligence recovery in software evolution
… technologies for the localisation, extraction, analysis of business intelligence in software system. Such an approach naturally requires information transformation from software system to business intelligence base, and hence a novel set of automatic business intelligence recovery methods are …
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A model for information retrieval driven by conceptual spaces
… a semantic reference as a pointer to a concept in the semantic model that activates all its linked neighboring concepts. It is in fact the formalization of the information retrieval model and the integration of knowledge resources from the Linguistic Linked Open Data cloud that is …
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Characterizations of Planar Lattices by Left-relations
Recently, Formal Concept Analysis has proven to be an efficient method for the analysis and representation of information. However, the possibility to visualize concept hierarchies is being affected by the difficulty of drawing attractive diagrams automatically. Reducing the number of edge …
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Análisis de relaciones de variables en retículos de conceptos multiadjuntos
El Análisis de Conceptos Formales (FCA, de sus siglas en inglés Formal Concept Analysis) surgió como una necesidad de aplicar la teoría de retículos a casos prácticos. Impulsada por R. Wille, B. Ganter, J. L. Guigues, y V. Duquenne en la década de los ochenta, se ha consolidado como una teoría …
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Operadores adjuntos en entornos generales y sus aplicaciones
… multi-adjoint logic programming, multi-adjoint concept lattices, multi-adjoint fuzzy rough sets and multi-adjoint fuzzy relation equations, providing more flexibility and increasing the range of applications in the setting in which they are considered. This thesis is focused on the study of the …
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An ontology-based reengineering methodology for service orientation
… legacy system assessment and a service-oriented analysis and design process, a reengineering decision is made by proposed rules. Based on the service-oriented software reengineering decision, ontologies for SOSR, which consists of Domain Concept Ontology (DCO), Functionality Ontology (FO) and …
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Spell checkers and correctors : a unified treatment
… the spell checking and correcting problems are formally described in mathematics in order to provide a better understanding of these tasks. An approach that is similar to the way in which denotational semantics used to describe programming languages is adopted. Secondly, the various attributes …
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Dealing with inconsistent and incomplete data in a semantic technology setting
… the inconsistency or incompleteness in the data. Analysis on a large set of data can be undermined by the presence of IID in that data set. Reliance as a result is placed on the data analyst to identify and visualise the IID in the data set. The IID issues are heightened in open world assumptions …
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Concept Approximations
… we put a special focus on the case of concept lattices. As it turns out, approximation of formal concepts can be interpreted as traces, which are preconcepts in a subcontext.
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Dicomplemented Lattices
… kontextuellen Logik, eine Herangehensweise der Formalen Begriffsanalyse, basierend auf der Idee, den Begriff als Einheit des Denkens aufzufassen.