POLARISQL: An Online Tutoring System for Learning SQL Language

The results show that: (1) considering placement and scheduling plan to describe the MDP is more suitable to long queries than the reinforcement learning methods

In this paper, we propose an alternative to reparameteriza- tion based on a convex optimization formulation. Given any parameterized curve, our algorithm returns the closest curve

The data model represents datasets from different source models and formats, namely relation- al, ontological and multidimensional, by offering a common representation level that

While it is well known that database vendors typically implement custom extensions of SQL that are not part of the ISO Standard, it is reasonable to expect statements that use

Alternate binders query (Fig. 3) has two optional graph patterns, both which may bind variable d. We call this the alternate binders case. The variable deref- erence expression

We present yet another client-server model, where the client is a well known, robust, widely used, extensible text editor, Emacs.[5] The problem of change management for

Perhaps more importantly, as the user includes a term from an ontology, the Semantic Web Portal automatically can provide references to other documents that use that

Web-based ITS, architectures for adaptive and intelligent Web-based educational systems, intelligent problem solving support via the Web, student modelling and student model servers