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 20 of 22 for “"Formal Concept"”.
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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
… were examined qualitatively and using formal concept analysis (FCA). Further, this thesis attempts to reflect on the context for SDIs and VGI and the challenges and opportunities for both. An SDI is an evolving concept for facilitating and coordinating the management and sharing of …
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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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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
… business intelligence oriented program modules; concept recovery rules are defined to recover business intelligence concepts from the names embedded in a program module; formal concept analysis is built to model the recovered business intelligence and present business logic. The future research …
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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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Concept challenge game: a game used to find errors from a multilangual linguistic resource
… element from a different language is mapped to a formal concept. In this dissertation, we present a non-immersive game named Concept Challenge Game to find the errors that exist in English-Chinese lexico-semantic resource. In this game, people will face challenges in English synsets and have to …
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An ontology-based reengineering methodology for service orientation
… ontologies for SOSR, which consists of Domain Concept Ontology (DCO), Functionality Ontology (FO) and Software Component Ontology (SCO), are developed by the ontology development methodologies. These ontologies store knowledge on both application domain and code entities, which support further …
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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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UNA MISTERIOSA DIALETTICA. MOVIMENTO DELLA VITA E SENSO DELL'AZIONE STORICA, A PARTIRE DA HEIDEGGER E PATOČKA
… work, are essentially two: first, the formal concept of «existence», in the phase of his meditation that culminates in Being and Time, and then the «history of being», following the so-called «turn». Similarly to how Marx intended to «make the Hegelian dialectic walk on its feet, rather …
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Dealing with inconsistent and incomplete data in a semantic technology setting
… and IID has to be tolerated at the outset. Formal Concept Analysis (FCA) can be used to deal with IID in such databases. That is because FCA is a mathematical method that uses a lattice structure to reveal the associations among objects and attributes in a data set. The existing FCA …
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