With the rapid development of the Knowledge Base such as DBpedia [11], [12] YAGO, Freebase [13] bring more value to the user. Over time, the query needs of information users require increasingly high. In particular, the need to link the Knowledge Base for answers to natural language questions of users is a new challenge. From 2004 to the present, 3WC Organization [14] proposed the RDF model [15] with the SPARQL query language [16] is the standard for the sematic web and constantly updated the standard and model for the sematic web. Based on the platform of 3WC [14] towards serving the sematic web, the common Knowledge Base has conducted structural changes consistent with the RDF model [15]. The change of the structure according to the RDF model [15] of the Knowledge Base created the opportunity to tackle new challenges. Task 1 (Multilingual Question Answering) of CLEF 2014 [18] lab QALD-4 (Multilingual Question Answering over Linked Data) [17] is a challenge that has focused on answering the question the nature of queries into the data link for many years.
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