PowerAqua 2017


Resources:

  • okbqa.org .. a community for advancement of question answering systems
  • poweraqua .. a multi-ontology-based question answering system

See also:

DBpedia & Question Answering Systems | FAUST (Formal Analysis Using Specification Tools) | GATE & GATECloud | Meta Guide Dialog Systems | Ontology-based QA Systems | TrueKnowledge | YAGO-QA


GENESIS: a generic RDF data access interface
T Ermilov, D Moussallem, R Usbeck… – Proceedings of the …, 2017 – dl.acm.org
… In sequel, PowerAqua has appeared showing to be an appealing tool [13]. PowerAqua is the rst attempt for developing an open- domain semantic engine which is not bounded to run upon one single ontology. Thus, the main …

Survey on Semantic Technologies based Web Information Retrieval and Service Selection Systems
NK Karthikeyan, BS Balaji, MB Shaheen – researchgate.net
… Annotation can also be based on contextual semantic information. F. Query processing The Natural Language query is processed by an ontology- based Question Answering (QA) system, PowerAqua. PowerAqua is able to …

Question Answering and Knowledge Graphs
A Moschitti, K Tymoshenko, P Alexopoulos… – Exploiting Linked Data …, 2017 – Springer
… actor dbo:birthDate ?date . } Towards performing this task, several question answering systems for seman- tic data have been proposed by the scientific community, including Aqualog [149], PowerAqua [148], NLP-Reduce [6], Pythia [236] and FREyA [63] …

Aquacold–a crowdsourced query understanding and query construction tool for the linked data web
N Collis, I Frommholz – Proc. of the 17th European …, 2017 – pdfs.semanticscholar.org
… NLI approaches for querying Linked Data range from sophisticated attempts to understand the query in its entirety as used in PowerAqua [8] and Pythia [9] to keyword based NLI used in NLP-Reduce [10] which employs a simpler ‘bag of words’ approach to query analysis …

Semantic Web and Augmented Reality for searching people, events and points of interest within of a University Campus
D Chimbo, P Contreras, A Tello… – … de Manejo de Datos e …, 2017 – sedici.unlp.edu.ar
… Such queries have a more complex structured than those based on keywords. Hence, to translate them to queries based on formal languages (eg, SPARQL3) we need to use specific libraries or frameworks (eg, PowerAqua4, QUEPY5) …

Using Rich Inference to Find Novel Answers to Questions
K Nuamah, A Bundy, C Lucas – pdfs.semanticscholar.org
… PowerAqua [14] and ANGIE [15] also use semantic web data to answer questions. PowerAqua uses its triple mapping component (triple similarity service) to find suitable answers to questions which have been decomposed and transformed into query triples …

Review on the advancements of disambiguation in semantic question answering system
S Hazrina, NM Sharef, H Ibrahim, MAA Murad… – Information Processing …, 2017 – Elsevier
Skip to main content …

OKBQA Framework towards an open collaboration for development of natural language question-answering systems over knowledge bases
JD Kim, C Unger, ACN Ngomo, A Freitas, Y Hahm… – ceur-ws.org
… system for SNOMED-CT. In: Proceedings of BioLink SIG meeting 2013 (2013) 5. Lopez, V., Fernández, M., Motta, E., Stieler, N.: Poweraqua: Supporting Users in Querying and Exploring the Semantic Web. Semantic web 3(3 …

A natural language interface to a graph-based bibliographic information retrieval system
Y Zhu, E Yan, IY Song – Data & Knowledge Engineering, 2017 – Elsevier
… performances (eg, [25]). Recent NLIKB systems include PowerAqua [18], ORAKEL [9], FREyA [12], PANTO [49], and NLP-Reduce [26]. The NLI designed in this paper is an NLI to graph databases (eg, [40]). Graph databases …

ADANS: An agriculture domain question answering system using ontologies
M Devi, M Dua – Computing, Communication and Automation …, 2017 – ieeexplore.ieee.org
… The later has these Query- Triples as input to form the ontology-compliant queries, named as Onto-Triples. PowerAQUA[6]: A Multi-Ontology Based Question Answering System – v1[6]:As the name suggests the system is capable of using multiple ontologies to form the answer …

Sparklis: an expressive query builder for SPARQL endpoints with guidance in natural language
S Ferré – Semantic Web, 2017 – content.iospress.com
… Natural Language Interfaces (NLI) [17] use NL in various forms, going from full natural language (eg, PowerAqua [16]) to mere keywords (eg, NLP-Reduce [15]) … This makes Sparklis a kind of Natural Language Interface (NLI), like PowerAqua [16] …

Automatic acquisition of adjective lexicalizations of restriction classes: a machine learning approach
S Walter, C Unger, P Cimiano – Journal on Data Semantics, 2017 – Springer
… There is an increasing interest in supporting common Web users in accessing structured knowledge bases such as DBpedia or Freebase, for example by means of question answering systems such as PowerAqua [16], TBSL [23], Bela [28], QAKiS [5] and FREyA [7]. An essential …

Core techniques of question answering systems over knowledge bases: a survey
D Diefenbach, V Lopez, K Singh, P Maret – Knowledge and Information …, 2017 – Springer
… Other systems like PowerAqua [50] use this step to find how the terms in the 7 @prefix dbr: http://dbpedia.org/resource/. 123 … Handmade rules Some engines rely on handwritten regular expressions. This is the case for PowerAqua ([50, 53]), Treo ([35]) and DEANNA ([80]) …

RQUERY: Rewriting Natural Language Queries on Knowledge Graphs to Alleviate the Vocabulary Mismatch Problem.
S Shekarpour, E Marx, S Auer, AP Sheth – AAAI, 2017 – aaai.org
Page 1. RQUERY: Rewriting Natural Language Queries on Knowledge Graphs to Alleviate the Vocabulary Mismatch Problem Saeedeh Shekarpour Kno.e.sis Center Dayton, United States saeedeh@knoesis.org Edgard Marx …

NLCI: a natural language command interpreter
M Landhäußer, S Weigelt, WF Tichy – Automated Software Engineering, 2017 – Springer
… the domain. Their approach works well in small domains but needs non-negligible effort for larger domains. PowerAqua, the successor of AquaLog, also targets users that query the semantic web (Lopez et al. 2012). It provides …

Towards portable natural language interfaces based on case-based reasoning
A Moreo, JL Castro, JM Zurita – Journal of Intelligent Information Systems, 2017 – Springer
… the system. In doing this, layered architectures separating syntactic parsings from the semantic interpretations were proven useful; which evolved towards the use of ontologies (see, eg, PowerAqua in Lopez et al. 2010). The …

Semantic Annotation of Unstructured Documents Using Concepts Similarity
F Pech, A Martinez, H Estrada, Y Hernandez – Scientific Programming, 2017 – hindawi.com
… This system takes as input a natural language query and converts it to semantic entities using a question-answering system. PowerAqua [33] is a system to recover and to classify documents through TF-IDF measures [34]. 4. Semantic Annotation Architecture …

Question Answering Over Linked Data: What is Difficult to Answer? What Affects the F scores?
M Saleem, SN Dastjerdi, R Usbeck… – … of BLINK2017: 2nd …, 2017 – pdfs.semanticscholar.org
… In 1st Workshop on Question Answering over Linked Data (QALD-1), 2011. 3. V. Lopez, M. Fernández, E. Motta, and N. Stieler. PowerAqua: Supporting users in querying and exploring the Semantic Web. Semantic Web Journal, 3:249–265, 2012 …

Question answering systems: the story till the Arabic linked data
A Bouziane, D Bouchiha, N Doumi… – International Journal of …, 2017 – inderscienceonline.com
… PowerAqua (Lopez et al., 2012) QAS focusing on querying multiple Semantic Web resources QACID (Fernandez et al., 2009) Relies on an ontology, a collection of user queries, and an entailment engine that associates new queries to a cluster of existing queries …

Analysis of Heterogeneous Data Integration and Document Clustering method in Digital Library
F Liu – Revista de la Facultad de Ingeniería, 2017 – revistadelafacultaddeingenieria.com
… Motta E., Stieler N. (2011). Poweraqua: supporting users in querying and exploring the semantic web.Semantic Web,3(3), 249-265.Doi: 10.1007/11762256_30 Mollá D., Vicedo JL (2007). Question answering in restricted domains …

Automated Semantic Query Formulation Using Machine Learning Approach.
RA Kadir, A RUFAI YAURI – Journal of Theoretical & Applied …, 2017 – search.ebscohost.com
… However, the system is based on small fragment queries, which are able to work with ill- formed or incorrect sentences. PowerAqua [27] supports the transformation of a user’s natural language query into structured form automatically …

Using Multi-Label Classification for Improved Question Answering
R Usbeck, M Hoffmann, M Röder, J Lehmann… – arXiv preprint arXiv …, 2017 – arxiv.org
… Semantic Web Journal, 2014. 11. V. Lopez, M. Fernández, E. Motta, and N. Stieler. PowerAqua: Supporting users in querying and exploring the Semantic Web. Semantic Web Journal, 3:249–265, 2012. 12. V. Lopez, VS Uren, M. Sabou, and E. Motta …

Enabling Structured Data Generation by Nontechnical Experts
A Breitenfeld, M Mackeprang… – Mensch und …, 2017 – dl.mensch-und-computer.de
… Visualizing ontologies with vowl. Semantic Web, 7(4), 399–419. Lopez, V. et al. (2012). PowerAqua: Supporting users in querying and exploring the Semantic Web. Semantic Web, 3(3), 249–265. McGuffin, MJ & Balakrishnan, R. (2005) …

Graph-based Interactive Bibliographic Information Retrieval Systems
Y Zhu – 2017 – search.proquest.com
… Readers can refer to Androutsopoulos and colleagues work (1995) for a comprehensive review of NLIDB systems. Recent NLIKB systems include PowerAqua (Fazzinga & Lukasiewicz, 2010), ORAKEL (Cimiano et al., 2008),. 13 …

Ripple down rules for question answering
DQ Nguyen, DQ Nguyen, SB Pham – Semantic Web, 2017 – content.iospress.com
… WordNet [17]. Evolved from AquaLog, the PowerAqua system [28] is an open-domain system, combining the knowledge from various heterogeneous ontologies which were autonomously created on the semantic web. Meanwhile …

Semantic web and augmented reality for searching people, events and points of interest within of a university campus
P Contreras, D Chimbo, A Tello… – … (CLEI), 2017 XLIII Latin …, 2017 – ieeexplore.ieee.org
… On the other hand, at the server side, the system performs the searching process from the keywords proposed by the user. 1https://www.w3.org/TR/sparql11-query/ 2http://technologies. kmi.open.ac.uk/poweraqua/ 3http://quepy.machinalis.com/about.html …

A Query/Answering System For Factual Queries In Portuguese On Dbpedia
M Ketsmur, M Rodrigues, A Teixeira – researchgate.net
… Page 9. Yao, X. and Van Durme., 2014. Information Extraction over Structured Data: Question Answering with Freebase. In ACL (1) (pp. 956-966). Lopez, V. et al., 2006. Poweraqua: Fishing the semantic web. The Semantic Web: research and applications, 393-410.

Resource Description Framework Triples Entity Formations Using Statistical Language Model
RA Kadir, RA Yauri – Journal of Fundamental and Applied Sciences, 2017 – jfas.info
Page 1. Journal of Fundamental and Applied Scien RESOURCE DESCRIPTION FRAMEW USING STATISTICA RA 1Institute of Informatics Visual, Universiti K 2Department of Computer Science, K Published online ABSTRACT A method in formatting unstructured sent …

A Novel Approach for Publishing Linked Open Geodata from National Registries with the Use of Semantically Annotated Context Dependent Web Pages
A Iwaniak, M Leszczuk, M Strzelecki, F Harvey… – … International Journal of …, 2017 – mdpi.com
Many of the standards used to build spatial data infrastructure (SDI), such as Web Map Service (WMS) or Web Feature Service (WFS), have become outdated. They do not follow current web technology development and do not fully exploit its capabilities. Spatial data often remains …

Dbpedia Based Factual Questions Answering System.
M Ketsmur, M Rodrigues… – … International Journal on …, 2017 – search.ebscohost.com
… Page 16. DBPEDIA BASED FACTUAL QUESTIONS ANSWERING SYSTEM 95 Lopez, V. et al., 2006. Poweraqua: Fishing the semantic web. The Semantic Web: research and applications, 393-410. Navigli, R., and Ponzetto, S., 2012 …

Generation of multilingual ontology lexica with M-ATOLL: a corpus-based approach for the induction of ontology lexica
S Walter – 2017 – pub.uni-bielefeld.de
… (2010). In the research community there are systems like QAKiS by Cabrio et al. (2012), PowerAqua by Lopez et al. (2012), TBSL by Unger et al. (2012), and Bela by Walter et al. (2012), which make use of structural databases in the background …

Automated template generation for question answering over knowledge graphs
A Abujabal, M Yahya, M Riedewald… – Proceedings of the 26th …, 2017 – dl.acm.org
Page 1. Automated Template Generation for Question Answering over Knowledge Graphs Abdalghani Abujabal Max Planck Institute for Informatics Saarland Informatics Campus, Germany abujabal@mpi-inf.mpg.de Mohamed …

Evaluating knowledge anchors in data graphs against Basic Level Objects
M Al-Tawil, V Dimitrova, D Thakker… – … Conference on Web …, 2017 – Springer
The growing number of available data graphs in the form of RDF Linked Data enables the development of semantic exploration applications in many domains. Often, the users are not domain experts and are.

Linked Data Entity Summarization
A Thalhammer – 2017 – d-nb.info
Page 1. Linked Data Entity Summarization Zur Erlangung des akademischen Grades eines Doktors der Ingenieurwissenschaften (Dr.-Ing.) von der Fakultät für Wirtschaftswissenschaften des Karlsruher Instituts für Technologie (KIT) genehmigte DISSERTATION von Dipl.-Inf …

An architecture for the autonomic curation of crowdsourced knowledge
A Patelli, PR Lewis, A Ekart, H Wang, I Nabney… – Cluster …, 2017 – Springer
Human knowledge curators are intrinsically better than their digital counterparts at providing relevant answers to queries. That is mainly due to the fact that an experienced biological brain will acc.

Computational Fact Checking by Mining Knowledge Graphs
P Shiralkar – 2017 – search.proquest.com
… fact-checking systems. In the past, these KGs have also powered question-answering (QA) systems. such as IBM Watson (Ferrucci, 2012) and PowerAqua (Lopez et al., 2012). Nodes in a KG typically represent real-world entities such as a person, place, organization, or …

Exploiting Alignments in Linked Data for Compression and Query Answering
AK Joshi – 2017 – corescholar.libraries.wright.edu
Page 1. Wright State University CORE Scholar Browse all Theses and Dissertations Theses and Dissertations 2017 Exploiting Alignments in Linked Data for Compression and Query Answering Amit Krishna Joshi Wright State University …