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SAKey: Scalable Almost Key Discovery in RDF Data [chapter]

Danai Symeonidou, Vincent Armant, Nathalie Pernelle, Fatiha Saïs
2014 Lecture Notes in Computer Science  
We present SAKey, an approach that discovers keys in RDF data in an efficient way.  ...  Furthermore, our approach can discover keys in datasets where erroneous data or duplicates exist (i.e., almost keys). The approach has been evaluated on different synthetic and real datasets.  ...  Scalability of SAKey SAKey has been executed in every class of DBpedia.  ... 
doi:10.1007/978-3-319-11964-9_3 fatcat:yo3xs54ewjafzksotuczs6upui


Tommaso Soru, Edgard Marx, Axel-Cyrille Ngonga Ngomo
2015 Proceedings of the 24th International Conference on World Wide Web - WWW '15  
The Linked Data principles provide a decentral approach for publishing structured data in the RDF format on the Web.  ...  Still, finding keys is of central importance for manifold applications such as resource deduplication, link discovery, logical data compression and data integration.  ...  While Linkkey is a tool able to retrieve keys, SAKey is more scalable and able to retrieve also k-almost keys (see Section 4.2).  ... 
doi:10.1145/2736277.2741642 dblp:conf/www/SoruMN15 fatcat:u4e3dlb46vbkrk4dyuqbqr6qcm

Automatic Key Selection for Data Linking [chapter]

Manel Achichi, Mohamed Ben Ellefi, Danai Symeonidou, Konstantin Todorov
2016 Lecture Notes in Computer Science  
Finally, in [7] , a key discovery approach for numerical data is proposed. Atencia et al.  ...  Bridging the gap between key discovery and data linking approaches is critical in order to obtain successful data linking results.  ... 
doi:10.1007/978-3-319-49004-5_1 fatcat:kseqvj5bpbdzjkx7mdniwr7shi

Vickey: Mining Conditional Keys On Knowledge Bases

Danai Symeonidou, Luis Galárraga, Nathalie Pernelle, Fatiha Saïs, Fabian Suchanek
2017 Zenodo  
A conditional key is a key constraint that is valid in only a part of the data. In this paper, we show how such keys can be mined automatically on large knowledge bases (KBs).  ...  We also show that the conditional keys we mine can improve the quality of entity linking by up to 47 percentage points.  ...  Scalable Almost Key discovery  ... 
doi:10.5281/zenodo.835646 fatcat:nzxu6f4rhjahpflceziqsijbym