Spelling suggestions: "subject:"modeldriven approach"" "subject:"modelldriven approach""
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CHORD: constraint handling object-oriented rules with disjunctionsSILVA, Marcos Aurélio Almeida da 31 January 2009 (has links)
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Previous issue date: 2009 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Constraint Handling Object-oriented Rules with Disjunctions (CHORD), é uma extensão
orientada a objetos (OO) de CHRv, uma linguagem relacional baseada em regras que foi
inicialmente desenhada para a especificação em caixa branca de resolvedores de restrições mas
veio a mostrar-se uma linguagem bastante flexível. Flexibilidade esta que vêm sendo
demonstrada nos últimos anos pelo grande número de serviços de raciocínio e algoritmos que
foram descritos concisamente por meio desta linguagem.
Para definir a sintaxe de nossa extensão, nós nos baseamos na abordagem seguida na
extensão de Prolog realizada por Frame Logic que é similar à nossa, na qual, a sintaxe de frames
foi introduzida para representar construtores OO em cima dos relacionais originais. Além disso,
em vez de forçar o usuário (programador) a se adequar à uma semântica pré-definida para esses
novos construtores, nós escolhemos uma estratégia inovadora: desacoplar a sintaxe da semântica
da linguagem permitindo que o conjunto de hipóteses semânticas seja totalmente configurável.
Estes avanços claramente contribuem para o domínio do Raciocínio Automático e da
Representação do Conhecimento (AR/KR), dentro do qual CHRv é a linguagem de representa
ção do conhecimento mais versátil. Este trabalho também permite a integração dos serviços de
raciocínio já providos por CHRv ao estado da arte em linguagens orientadas a objetos reduzindo
a quebra de paradigma entre elas.
Há também contribuições a outros domínios: em programação declarativa, ao
disponibilizar a primeira linguagem a integrar as formas mais poderosas de programação
orientada a objetos, baseada em regras e baseada em restrições. No domínio da Web Semântica,
nós mostramos que nossa linguagem generaliza a semântica de três dos mais importantes padrões
de linguagem de representação do conhecimento, provendo uma solução para o problema
recorrente de integração nesta área. No domínio da engenharia guiado por modelos (MDE), este
trabalho provê o primeiro mapeamento semântico para modelos UML/OCL, MOF/OCL e
transformações de modelo explícitamente configurável e com fundamentação axiomática
declarativa e operacional em CFOL.
Neste trabalho nós apresentamos as sintaxes abstrata e contreta de CHORD, suas
semânticas operacional e declarativa em CFOL, e uma ontologia de hipóteses semânticas para
herança. Para validá-lo, nós apresentamos três estudos de caso mostrando que CHORD
generaliza UML/OCL, Frame Logic e OWL
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Model-Driven Software Architecture for the Management of Educational Resources Metadata / Моделом вођена софтверска архитектура за управљање метаподацима образовних ресурса / Modelom vođena softverska arhitektura za upravljanje metapodacima obrazovnih resursaAbdyssalam Alhaag (Abdyssalam) Amel 31 October 2018 (has links)
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Name="Emphasis"/> <w:LsdException Locked="false" Priority="59" SemiHidden="false" UnhideWhenUsed="false" Name="Table Grid"/> <w:LsdException Locked="false" UnhideWhenUsed="false" Name="Placeholder Text"/> <w:LsdException Locked="false" Priority="1" SemiHidden="false" UnhideWhenUsed="false" QFormat="true" Name="No Spacing"/> <w:LsdException Locked="false" Priority="60" SemiHidden="false" UnhideWhenUsed="false" Name="Light Shading"/> <w:LsdException Locked="false" Priority="61" SemiHidden="false" UnhideWhenUsed="false" Name="Light List"/> <w:LsdException Locked="false" Priority="62" SemiHidden="false" UnhideWhenUsed="false" Name="Light Grid"/> <w:LsdException Locked="false" Priority="63" SemiHidden="false" UnhideWhenUsed="false" Name="Medium Shading 1"/> <w:LsdException Locked="false" Priority="64" SemiHidden="false" UnhideWhenUsed=&q / <p>Cilj – Cilj disertacije je da se omogući dinamičko prilagođavanje metapodataka koji opisuju obrazovne resurse u digitalnim repozitorijumima.</p><p>Metodologija - Postoji potreba da se u digitalnim repozitorijumima obrazovni resursi opišu putem skupa metapodataka koji je specifičan za određenog korisnika ili domen. Obzirom da korisnici ne mogu samostalno da ručno vrše izmenu softverske aplikacije, pristup predložen u ovoj disertaciji se zasniva na tehnikama modelom vođenog razvoja softvera, koji treba da omogući prilagođavanje softverske aplikacije programski, bez potrebe za razvojem ili naručivanjem nove aplikacije. Da bi se predloženo rešenje verifikovalo, sproveden je eksperiment koji evaluira njegove karakteristike.</p><p>Rezultati - U disertaciji je predložena softverska platforma za upravljanje obrazovnim resursima opisanim dinamički proširivim skupom metapodataka. Platforma omogućuje kreiranje modela podataka koji se programski transformišu u veb aplikaciju za upravljanje obrazovnim resursima. Na ovaj način, korisnik može da kreira sopstveni model metapodataka koji je odgovarajući u određenom domenu.</p><p>Ograničenja istraživanja/implikacije – Rešenje verifikovano od strane korisnicima sa određenim tehničkim znanjem. Potrebno je istražiti prikladnost platforme za domenske eksperte sa ograničenim tehničkim znanjem, koji treba da definišu nove skupove metapodataka u svom domenu.</p><p>Praktične implikacije – Rešenje se može koristiti u digitalnim repozitorijuma koji skladište raznolike obrazovne resurse. Svaki resurs može biti opisan koristeći metapodatke iz domena kojem resurs pripada.<br />Originalnost/vrednost - Digitalni repozitorijumi standardno opisuju obrazovne resurse koristeći neki generalni skup metapodataka, koji je više fokusiran na fizičke karakteristike resursa, umesto na njihovo značenje. Predloženo rešenje uvodi proizvoljnu domenski-zavisnu semantiku u opis resursa, čime se unapređuje njihovo dobavljanje.</p>
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Méthode et outil d’anonymisation des données sensibles / Method and tool for anonymization sensitive dataBen Fredj, Feten 03 July 2017 (has links)
L’anonymisation des données personnelles requiert l’utilisation d’algorithmes complexes permettant de minimiser le risque de ré-identification tout en préservant l’utilité des données. Dans cette thèse, nous décrivons une approche fondée sur les modèles qui guide le propriétaire des données dans son processus d’anonymisation. Le guidage peut être informatif ou suggestif. Il permet de choisir l’algorithme le plus pertinent en fonction des caractéristiques des données mais aussi de l’usage ultérieur des données anonymisées. Le guidage a aussi pour but de définir les bons paramètres à appliquer à l’algorithme retenu. Dans cette thèse, nous nous focalisons sur les algorithmes de généralisation de micro-données. Les connaissances liées à l’anonymisation tant théoriques qu’expérimentales sont stockées dans une ontologie. / Personal data anonymization requires complex algorithms aiming at avoiding disclosure risk without losing data utility. In this thesis, we describe a model-driven approach guiding the data owner during the anonymization process. The guidance may be informative or suggestive. It helps the data owner in choosing the most relevant algorithm given the data characteristics and the future usage of anonymized data. The guidance process also helps in defining the best input values for the algorithms. In this thesis, we focus on generalization algorithms for micro-data. The knowledge about anonymization is composed of both theoretical aspects and experimental results. It is managed thanks to an ontology.
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