Antonio R. Anaya

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är ett exempel p̊a en kovariansmatris. Falskt. (b) Value-At-Risk är ett exempel p̊a ett koherent riskm̊att. Falskt. (c) Ett koherent riskm̊att, ρ(X), uppfyller olikheten ρ((X + Y )/2) ≤ (ρ(X) + ρ(Y ))/2. Sant. (d) Om ett värdepapper har negativt beta i CAPM modellen s̊a har det lägre förväntad avkastning än det risk-fria pappret. Sant. (e) Högt bel̊anade(More)
Modeling user behavior (user modeling) via data mining faces a critical unresolved issue: how to build a collaboration model based on frequent analysis of students in order to ascertain whether collaboration has taken place. Numerous human-based and knowledge-based solutions to this problem have been proposed, but they are time-consuming or(More)
Giving useful recommendations to students to improve collaboration in a learning experience requires tracking and analyzing student team interactions, identifying the problems and the target student. Previously , we proposed an approach to track students and assess their collaboration, but it did not perform any decision analysis to choose a recommendation(More)
When students are responsible for their own collaborative learning process, they need information on collaboration to manage the process. We note that collaborative environments fail to provide users with information on the collaboration process. This research proposes an open collaborative learning experience design that provides learners with an(More)
1350020-1 Collaborative learning environments require intensive, regular and frequent analysis of the increasing amount of interaction data generated by students to assess that collaborative learning takes place. To support timely assessments that may benefit students and teachers the method of analysis must provide meaningful evaluations while the(More)
MOOCs pedagogical strategies assume that students construct their own knowledge and collaborate with their mates. Largescale learners’ interaction figures hinder both proper interpretation of learners’ needs and prompt remediation actions. To this we describe a preliminary study of a two-step collaboration analysis, which consists of inferring(More)