Great work Peng Xu & Nilesh! @everyone, the Chinese results look quite good, the ones with the English names at least, I couldn't tell the rest :) We want to apply this to other languages with low on no mappings at all but we need native speakers for the evaluation
Any volunteers? If we hurry a bit we will use these mappings in the upcoming release Cheers, Dimitris On Tue, Aug 23, 2016 at 12:31 AM, Peng Xu <p...@ualberta.ca> wrote: > *Mentor: **Nilesh Chakraborty* > *Student: Peng Xu* > > In the first phase of the project, I complete a approach to find new > mappings for languages with few existing mappings based on languages with > enough mappings and cross-language links. This approach can achieve fairly > good evaluation results. And I get 456 high-quality new mappings for > Chinese after my manual check. > > Due to the incomplete coverage of mapping on DBpedia, we need to predict > ontology types for instances without a type. In the second phase, I try > different methods including tensor factorization and graph embeddings on > DBpedia to do type prediction. The experiments show that tensor > factorization can achieve good performance on small languages like > Bulgarian. However, for larger languages it performs badly due to the limit > of memory. > > All the scripts I wrote can be easily applied to other languages if > datasets are downloaded to the proper path. All my code and detailed > documents can be found here: https://github.com/dbpedia/ > mappings-autogeneration. > > Further work: Currently, I ignore the literals in DBpedia when doing > tensor factorization. The next step is to add the literal information. > Furthermore, considering the issues about time and memory complexity, a > distributed implementation of the algorithm can be useful if we want to > apply the ideas on languages like English. > > Best Regards > Peng Xu > ---------------------------------- > http://billy-inn.github.io/ > M.Sc., Department of Computing Science > University of Alberta > > ------------------------------------------------------------ > ------------------ > > _______________________________________________ > DBpedia-developers mailing list > dbpedia-develop...@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dbpedia-developers > > -- Kontokostas Dimitris
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