EFCA: An Extended Formal Concept Analysis Method for Aspect Extraction in Healthcare Informatics

2021 ◽  
Author(s):  
Zohair Ahmed ◽  
Junwen Duan ◽  
FangXiang Wu ◽  
Jianxin Wang
Keyword(s):  
Formal Concept Analysis ◽  
Concept Analysis ◽  
Formal Concept ◽  
Analysis Method ◽  
Healthcare Informatics ◽  
Aspect Extraction

The Method of Discover the Attributes' Sequences of Objects in the Formal Context

2013 ◽  
Vol 427-429 ◽  
pp. 2536-2539
Author(s):  
Xue Song Dai ◽  
Yuan Ma ◽  
Wen Xue Hong
Keyword(s):  
Equivalence Relation ◽  
Formal Concept Analysis ◽  
Concept Lattice ◽  
Concept Analysis ◽  
Formal Context ◽  
Formal Concept ◽  
Analysis Method ◽  
Analysis Theory

Formal context is one of the research contents of formal concept analysis theory. In concept lattice, the attributes of the object are equivalent and there is no hierarchy. Facing to this problem, the equivalence relation which is on the attributes' set is defined and the corresponding σ operation is proposed. On this basis, the structure method of attribute hierarchical diagram is presented and attributes' sequences of associated objects are obtained. This conclusion enriches and extends the analysis method of the formal context.

scholarly journals Formalių konceptų analizė, kuriant taikomosios srities ontologijas

2008 ◽  
Vol 46 ◽  
pp. 115-126
Author(s):  
Darius Jurkevičius ◽  
Olegas Vasilecas ◽  
Algirdas Laukaitis
Keyword(s):  
Formal Concept Analysis ◽  
Main Idea ◽  
Concept Analysis ◽  
Formal Concept ◽  
Analysis Method ◽  
Specific Domain ◽  
Hierarchical Tree ◽  
Formal Concepts

Straipsnyje pristatomas naujas metodas, kuris padeda sukurti dalykinės srities ontologiją. Pagrindinis metodo bruožas pasireiškia tuo, kad ontologijos kūrimo metu dalykinės srities objektai, konceptai, bei konceptų atributai analizuojami atliekant formalių konceptų analizės algoritmus. Be to, šio metodo ontologijos kūrimo rezultatai gali būti taikomi dalykinės srities dokumentų semantiniam indeksavimui, kas ypač svarbu plėtojant semantinio interneto technologijas. Be šio metodo pristatymo, šiame straipsnyje yra aprašytas eksperimentinis tyrimas susijęs su nekilnojamojo turto dalykine sritimi. Eksperimento metu buvo sukurtas sistemos prototipas, kuris realizuoja straipsnyje pateiktą ontologijos kūrimo metodą. Manome, kad sukurto prototipo architektūra taip pat bus naudinga kitiems tyrėjams ontologijų kūrimo srityje.Pagrindiniai žodžiai: ontologija, formalių konceptų analizė, formalus konceptas, duomenų analizė.Ontology building using formal conceptDarius Jurkevičius, Olegas Vasilecas, Algirdas Laukaitis SummaryIn this article the method how to make ontology using formal concepts is described. This method is used to collect terms of specific domain. This method allows to represent the hierarchical tree of concepts without analysing terms of specific domain. The main idea of proposed method is to select terms (objects) from collected data using templates. Later collected terms are analysed using formal concept analysis method. This allows to simplify the steps of terms analysis and ontology representing in ontology creating process. In this article the experiment and it‘s results and conclusions are described. The realty domain is select for the experiment.Keywords. Ontology, formal concept analysis, formal concept, programme agent.x;">

scholarly journals Continuous Domains in Formal Concept Analysis*

2021 ◽  
Vol 179 (3) ◽  
pp. 295-319
Author(s):  
Longchun Wang ◽  
Lankun Guo ◽  
Qingguo Li
Keyword(s):  
Formal Concept Analysis ◽  
Concept Analysis ◽  
Continuous Functions ◽  
Formal Context ◽  
Formal Concept ◽  
Contractive Mappings ◽  
Continuous Domains ◽  
Algebraic Domains ◽  
Scott Continuous ◽  
Continuous Domain

Formal Concept Analysis (FCA) has been proven to be an effective method of restructuring complete lattices and various algebraic domains. In this paper, the notion of contractive mappings over formal contexts is proposed, which can be viewed as a generalization of interior operators on sets into the framework of FCA. Then, by considering subset-selections consistent with contractive mappings, the notions of attribute continuous formal contexts and continuous concepts are introduced. It is shown that the set of continuous concepts of an attribute continuous formal context forms a continuous domain, and every continuous domain can be restructured in this way. Moreover, the notion of F-morphisms is identified to produce a category equivalent to that of continuous domains with Scott continuous functions. The paper also investigates the representations of various subclasses of continuous domains including algebraic domains and stably continuous semilattices.

The Research of Semantic Web Service Matching Algorithm Based on the Formal Concept Analysis

2013 ◽  
Vol 760-762 ◽  
pp. 1708-1712
Author(s):  
Ying Fang Li ◽  
Ying Jiang Li ◽  
Yan Li ◽  
Yang Bo
Keyword(s):  
Semantic Web ◽  
Web Service ◽  
Formal Concept Analysis ◽  
Service Discovery ◽  
Concept Lattice ◽  
Concept Analysis ◽  
Formal Concept ◽  
Semantic Web Service ◽  
Matching Algorithm ◽  
Service Matching

At present, as the number of web services resources on the network drastically increased, how to quickly and efficiently find the needed services from publishing services has become a problem to resolve. Aiming at the problems of low efficiency in service discovery of traditional web service, the formal concept analysis ( FCA) is introduced into the semantic Web service matching, and a Matching Algorithm based semantic web service is proposed. With considering the concept of limited inheritance,this method introduces the concept of limited inheritance to the semantic similarity calculation based on the concept lattice. It is significant in enhancing the service function matching in practical applications through adjust the calculation.

Set approximations in fuzzy formal concept analysis

2007 ◽  
Vol 158 (23) ◽  
pp. 2627-2640 ◽  
Author(s):  
Ming-Wen Shao ◽  
Min Liu ◽  
Wen-Xiu Zhang
Keyword(s):  
Formal Concept Analysis ◽  
Concept Analysis ◽  
Formal Concept ◽  
Fuzzy Formal Concept ◽  
Fuzzy Formal Concept Analysis
Sign in / Sign up

Export Citation Format

Share Document