We call a nitely complete category algebraically coherent if the change-ofbase functors of its bration of points are coherent, which means that they preserve nite limits and jointly strongly epimorphic pairs of arrows. We give examples of categories satisfying this condition; for instance, coherent categories, categories of interest in the sense of Orzech, and (compact) Hausdor algebras over a ...

Constraint-based pattern discovery is at the core of numerous data mining tasks. Patterns are extracted with respect to a given set of constraints (frequency, closedness, size, etc). In practice, many constraints require threshold values whose choice is often arbitrary. This difficulty is even harder when several thresholds are required and have to be combined. Moreover, patterns barely missing...

While the desire to gain full access to stationary information sources (e.g. the company ́s backoffice database) from abroad is only natural, inherent design limitations such as a lack of computational power, extremely limited resources and closedness to modifications, let mobile system integration be still a difficult issue. In contrast to other approaches to the field, the “Java Border Service...