We recently got a Demo paper accepted at EDBT 2019 describing our HOTMapper tool that enables defining and storing mappings of Open Data sources into an integrated data source in MonetDb. The tool is currently used to store and manage mappings of educational Open Data made available yearly by INEP. The resulting mapped data source…
Read MoreCreating drawings of an architecture, of an algorithm, or even of writing a full algorithm in the blackboard or in a piece of paper is an important step when doing R&D in Computer Science. There are some tools that enable online drawings, but I prefer the hand-coded ones! Recently, I browsed through my photo gallery…
Read MoreWe have been working on different initiatives to process large amounts of open data and to produce useful information, for instance, the Educational Data Lab or the Web Portal for Educational Resources. One recurrent difficulty is the initial data analysis and transformations, where it is necessary to understand the data before loading it into some…
Read MoreInteroperability been data formats/metadata/applications has always been a research subject that I am interested on. Without searching very hard, I’ve found 4 of my publications with interoperability in the title! There are so many solutions covering different aspects, which makes it very hard to choose amongst the best data-format-application-framework-query-language-etc. We defined, with a MsC studeng…
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