Evènement pour le groupe Séminaire Méthodes Formelles


Date 2020-12-08  07:00-07:00
Titre On monotonic determinacy and rewritability for recursive queries and views  
RésuméAnswering queries using views is a classical and well-studied topic in database theory. Some key associated problems are (monotone) determinacy – can the query Q be expressed as a (monotone) function of the set of views? -- and rewritability – can the query Q be rewritten in certain language over the schema of the views? In this talk, we will introduce these problems and review some relevant results. We will also discuss some recent results about monotonic determinacy and rewritability for recursive queries and views. Joint work with Michael Benedikt, Stanislav Kikot and Piotr Ostropolski-Nalewaja. Enregistrement : https://u-bordeaux-fr.zoom.us/rec/share/kw54X2AGRvmBlKaTxXlauYbrf661UpuEilJEg-oMNZcZtD2S29kXMqGCaEI2agfP.do8D65tAfF7jsSwY 
LieuOnline 
OrateurMiguel Romero Orth 
Emailhttp://mromero.cl/ 
UrlUniversidad Adolfo Ibáñez 



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