LELA - a natural language processing system for Romanian tourism

This paper presents a commercial semantic-based system for the Romanian tourism. The Lela system exploits both open linked data from Romanian and international sources, and also proprietary databases in the tourism domain. We present the process of creating the linked data set, based on: i) engineering the LELA Romanian tourism ontology, and ii) populating the ontology by linking open data. The system also provides a natural language interface for the Romanian language. The queries are automatically translated into SPARQL based on a controlled vocabulary derived from the Lela ontology.

[1]  Volker Haarslev,et al.  The RacerPro knowledge representation and reasoning system , 2012, Semantic Web.

[2]  Kalina Bontcheva,et al.  A Natural Language Query Interface to Structured Information , 2008, ESWC.

[3]  Diego Calvanese,et al.  The Description Logic Handbook: Theory, Implementation, and Applications , 2003, Description Logic Handbook.

[4]  Oscar Corcho,et al.  The Semantic Web: Semantics and Big Data , 2013, Lecture Notes in Computer Science.

[5]  Anna Freud,et al.  Grammatical Framework Programming With Multilingual Grammars , 2016 .

[6]  Enrico Motta,et al.  Is Question Answering fit for the Semantic Web?: A survey , 2011, Semantic Web.

[7]  Kaarel Kaljurand,et al.  A Multilingual Semantic Wiki Based on Attempto Controlled English and Grammatical Framework , 2013, ESWC.

[8]  Gerhard Weikum,et al.  YAGO2: A Spatially and Temporally Enhanced Knowledge Base from Wikipedia: Extended Abstract , 2013, IJCAI.

[9]  Volker Haarslev,et al.  Resolving Quantifier and Number Restriction to Question OWL Ontologies , 2007, Third International Conference on Semantics, Knowledge and Grid (SKG 2007).

[10]  Kaarel Kaljurand ACE View --- an Ontology and Rule Editor based on Attempto Controlled English , 2008, OWLED.

[11]  Jörg Hoffmann,et al.  The Semantic Web: Research and Applications, 5th European Semantic Web Conference, ESWC 2008, Tenerife, Canary Islands, Spain, June 1-5, 2008, Proceedings , 2008, ESWC.

[12]  Marta Sabou,et al.  TourMISLOD: A tourism linked data set , 2013, Semantic Web.

[13]  Aarne Ranta,et al.  GF: A Multilingual Grammar Formalism , 2009, Lang. Linguistics Compass.

[14]  Victoria Bobicev,et al.  Emotions in Words: Developing a Multilingual WordNet-Affect , 2010, CICLing.

[15]  Dan Cristea,et al.  Linguistic Resources and Technologies for Romanian Language , 2006, Comput. Sci. J. Moldova.

[16]  Aarne Ranta,et al.  An Open-Source Computational Grammar for Romanian , 2010, CICLing.

[17]  Aldo Gangemi,et al.  Content Ontology Design Patterns as Practical Building Blocks for Web Ontologies , 2008, ER.

[18]  N. F. Noy,et al.  Ontology Development 101: A Guide to Creating Your First Ontology , 2001 .

[19]  Jens Lehmann,et al.  DBpedia - A large-scale, multilingual knowledge base extracted from Wikipedia , 2015, Semantic Web.

[20]  Andrew McCallum,et al.  An Introduction to Conditional Random Fields , 2010, Found. Trends Mach. Learn..

[21]  Aldo Gangemi,et al.  Ontology Design Patterns , 2005 .

[22]  Ion Androutsopoulos,et al.  Generating Natural Language Descriptions from OWL Ontologies: the NaturalOWL System , 2013, J. Artif. Intell. Res..