{"id":733,"date":"2024-01-16T17:10:54","date_gmt":"2024-01-16T17:10:54","guid":{"rendered":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/?p=733"},"modified":"2024-01-16T17:30:15","modified_gmt":"2024-01-16T17:30:15","slug":"deng-ning","status":"publish","type":"post","link":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/2024\/01\/16\/deng-ning\/","title":{"rendered":"Deng, Ning."},"content":{"rendered":"\n<p><a href=\"https:\/\/search.proquest.com\/openview\/1c30d63f0919c3e31a96fb878b7a65f6\/\">Advanced schema mappings: Priorities and coverage<\/a>. PhD dissertation, University at Buffalo.<\/p>\n\n\n\n<p>EN: This research explores various ways to manage the priorities of relationships between schemas in schema mappings and to describe the ability of mapping source instances to target instances for schema mappings. Schema mappings are used in systems and applications that require the interactions of heterogeneous data (data exchange and data integration) to specify s-t relationships (relationships between source schemas and target schemas). The researcher introduces a language for modeling s-t relationships with priorities based on the language of classical schema mappings. They also devise a framework of schema mappings with priorities in order to determine the best way to relate source data to target data. Finally, they explore how target dependencies indirectly enforce dependencies via mapping specifications on source instances and thus determine which source instances have solutions. As a final product, this work presents algorithms for computational problems in the query answering of schema mapping priorities and for computing the coverage for schema mappings in which both the source and the target dependencies consist of functional dependencies and acyclic inclusion dependencies.<\/p>\n\n\n\n<p>FR: Cette recherche examine diff\u00e9rentes mani\u00e8res de g\u00e9rer les priorit\u00e9s des liens entre les sch\u00e9mas dans l&#8217;application des sch\u00e9mas et de d\u00e9crire la capacit\u00e9 de caract\u00e9riser les faits sources aux faits objectifs pour l\u2019application des sch\u00e9mas. L\u2019application des sch\u00e9mas est utilis\u00e9e dans les syst\u00e8mes et les applications qui ont besoin des interactions des donn\u00e9es h\u00e9t\u00e9rog\u00e8nes (l\u2019\u00e9change de donn\u00e9es et l&#8217;int\u00e9gration de donn\u00e9es) pour sp\u00e9cifier les liens <em>s-t<\/em> (les liens entre les sch\u00e9mas sources et les sch\u00e9mas objectifs). Le chercheur pr\u00e9sente une langue pour montrer les liens <em>s-t<\/em> avec les priorit\u00e9s bas\u00e9es sur la langue des applications des sch\u00e9mas classiques. Il con\u00e7oit aussi un syst\u00e8me des applications des sch\u00e9mas avec les priorit\u00e9s pour d\u00e9terminer la meilleure mani\u00e8re de relier les donn\u00e9es sources aux donn\u00e9es objectives. Finalement, il examine comment les faits d\u00e9pendances objectives imposent les d\u00e9pendances via les sp\u00e9cifications d\u2019application sur les faits sources et par cons\u00e9quent d\u00e9terminer quelles faits sources ont solutions. Comme un produit final, ce travail pr\u00e9sente les algorithmes pour les probl\u00e8mes informatiques en r\u00e9pondre \u00e0 requ\u00eates des priorit\u00e9s de l\u2019application des sch\u00e9mas et pour calculer la couverture des applications des sch\u00e9mas en que les d\u00e9pendances sources et objectives consistent des d\u00e9pendances fonctionnelles et d\u00e9pendances d\u2019inclusion acyclique.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Advanced schema mappings: Priorities and coverage. PhD dissertation, University at Buffalo.<\/p>\n","protected":false},"author":559,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,28],"tags":[],"class_list":["post-733","post","type-post","status-publish","format-standard","hentry","category-thesis-summary","category-thesis2020","entry"],"_links":{"self":[{"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/posts\/733","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/users\/559"}],"replies":[{"embeddable":true,"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/comments?post=733"}],"version-history":[{"count":2,"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/posts\/733\/revisions"}],"predecessor-version":[{"id":756,"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/posts\/733\/revisions\/756"}],"wp:attachment":[{"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/media?parent=733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/categories?post=733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ubwp.buffalo.edu\/kpaamcam\/wp-json\/wp\/v2\/tags?post=733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}