40 Hits in 3.2 sec

Multilingual Question Answering over Linked Data (QALD-3): Lab Overview [chapter]

Philipp Cimiano, Vanessa Lopez, Christina Unger, Elena Cabrio, Axel-Cyrille Ngonga Ngomo, Sebastian Walter
2013 Lecture Notes in Computer Science  
The third instalment of the open challenge on Question Answering over Linked Data (QALD-3) has been conducted as a half-day lab at CLEF 2013.  ...  Differently from previous editions of the challenge, QALD-3 put a strong emphasis on multilinguality, offering two tasks: one on multilingual question answering and one on ontology lexicalization.  ...  Participating systems The participating systems follow different approaches to question answering over linked data.  ... 
doi:10.1007/978-3-642-40802-1_30 fatcat:glwebrqehrae7ksid6lvfvkmoe

SWIP at QALD-3: Results, Criticisms and Lesson Learned

Camille Pradel, Guillaume Peyet, Ollivier Haemmerlé, Nathalie Hernandez
2013 Conference and Labs of the Evaluation Forum  
This paper presents the results obtained by the SWIP system while participating in the QALD-3 (Question Answering over Linked Data) challenge, co-located with CLEF 2013 (Conference and Labs of the Evaluation  ...  We tackled task 1, multilingual question answering, whose purpose is to interpret natural language questions in order to return the answers contained in a graph knowledge base.  ...  This article presents and analyses the results obtained by the SWIP system for task 1 of the QALD-3 challenge 1 .  ... 
dblp:conf/clef/PradelPHH13 fatcat:w7gb4odp4rf7fco2ldha5ke3ui

Introduction to the CLEF2013 Labs and Workshop

Roberto Navigli, Dan Tufis
2013 Conference and Labs of the Evaluation Forum  
The three challenging tasks of the ImageCLEF 2013 were:  Photo Annotation and Retrieval: semantic concept detection using private collection data, and large-scale annotation using general Web data;   ...  Each Lab, building on previous experience, demonstrated maturity coming with new tasks, new and larger data sets, new ways of evaluation or more languages.  ...  QALD-3 -Question Answering over Linked Data QALD-3 is the third in a series of evaluation campaigns on question answering over linked data, for the first time with a strong emphasis on multilinguality.  ... 
dblp:conf/clef/NavigliT13 fatcat:kg76ulv4inf2jhfzxbqfsqywzm

squall2sparql: a Translator from Controlled English to Full SPARQL 1.1

Sébastien Ferré
2013 Conference and Labs of the Evaluation Forum  
This paper reports on the participation of the system squall2sparql in the QALD-3 question answering challenge for DBpedia. squall2sparql is a translator from SQUALL, a controlled natural language for  ...  English, to SPARQL 1.1, a standard expressive query and update language for linked open data.  ...  The objective of QALD challenges (Question Answering over Linked Data) is to challenge, evaluate, and compare Semantic Web systems on the task of question answering on large and real linked datasets: DBpedia  ... 
dblp:conf/clef/Ferre13 fatcat:eirjcn5pmbf6dbytcflarhk3he

Towards an open question answering architecture

Edgard Marx, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Konrad Höffner, Jens Lehmann, Sören Auer
2014 Proceedings of the 10th International Conference on Semantic Systems - SEM '14  
Although many question answering systems over Linked Data have being proposed, retrieving the desired data is still significantly challenging.  ...  In addition, developing and evaluating question answering systems remains a very complex task.  ...  QALD-3 benchmarks.  ... 
doi:10.1145/2660517.2660519 dblp:conf/i-semantics/MarxUNHLA14 fatcat:xliyu33ctvfq7kjnmxdoszbhom

Querying Multilingual DBpedia with QAKiS [chapter]

Elena Cabrio, Julien Cojan, Fabien Gandon, Amine Hallili
2013 Lecture Notes in Computer Science  
Data challenge (QALD-3)  ...  We present an extension of QAKiS, a system for open domain Question Answering over linked data, that allows to query DBpedia multilingual chapters.  ...  Question Answering over Linked Data The Semantic Web community has recently started an effort of internationalization of the DBpedia project (Bizer et al.  ... 
doi:10.1007/978-3-642-41242-4_23 fatcat:zroosxiejbe7nkz4nqnqczdwgm

7th Open Challenge on Question Answering over Linked Data (QALD-7) [chapter]

Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Bastian Haarmann, Anastasia Krithara, Michael Röder, Giulio Napolitano
2017 Communications in Computer and Information Science  
Task 1: Multilingual question answering over DBpedia Given the diversity of languages used on the web, there is an increasing need to facilitate multilingual access to semantic data.  ...  Summary The seventh Question Answering over Linked Data challenge introduced two new tasks (scalable QA and QA over Wikidata) and repeated two of the successful past tasks.  ... 
doi:10.1007/978-3-319-69146-6_6 fatcat:625ecuwkajactklg26xroa7qfi

Question Answering System over Linked Data: A Detailed Survey

G. M. Rasiqul Islam Rasiq, Abdullah Al Sefat, Tanjila Hossain, Md. Israt-E-Hasan Munna, Jubayeath Jahan Jisha, Mohammad Moinul Hoque
2020 ABC Research Alert  
to our various questions.  ...  As the amount of information in the world is growing very quickly, in the case of the semantic web this increasing amount of information is becoming more difficult to find and manage the exact answers  ...  Answering system over Linked Data.  ... 
doi:10.18034/abcra.v8i1.449 fatcat:whgbzdj5vrfktfwci5akwamh2e

CLEF 2013

Nicola Ferro, Pamela Forner, Henning Müller, Roberto Navigli, Roberto Paredes, Paolo Rosso, Benno Stein, Dan Tufis
2013 SIGIR Forum  
Number of participating teams: 14 QALD-3 -Question Answering over Linked Data A lab on question answering over linked data, this time with a strong emphasis on multilinguality.  ...  It offered two challenges: (1) Multilingual question answering and 4  ... 
doi:10.1145/2568388.2568392 fatcat:ezpo2wtb65cmrpjowvvnk3q374

QALD-9-plus: A Multilingual Dataset for Question Answering over DBpedia and Wikidata Translated by Native Speakers [article]

Aleksandr Perevalov, Dennis Diefenbach, Ricardo Usbeck, Andreas Both
2022 arXiv   pre-print
The same is true for Knowledge Graph Question Answering (KGQA) systems that provide the access to Semantic Web data via natural language interface.  ...  While following our research agenda on the multilingual aspect of accessibility of KGQA systems, we identified several ongoing challenges. One of them is the lack of multilingual KGQA benchmarks.  ...  Additionally, authors would like to give thanks to Open Data Science community 11 for connecting data science enthusiasts all over the world.  ... 
arXiv:2202.00120v2 fatcat:lh47hpeo5be3tpx22tyd6gu7jy

M-ATOLL: A Framework for the Lexicalization of Ontologies in Multiple Languages [chapter]

Sebastian Walter, Christina Unger, Philipp Cimiano
2014 Lecture Notes in Computer Science  
In a multilingual setting, such knowledge is needed for each of the supported languages.  ...  The framework exploits a set of language-specific dependency patterns which are formalized as SPARQL queries and run over a parsed corpus.  ...  ., for question answering over linked data [23, 20, 10] and natural language generation from ontologies or RDF data [4] .  ... 
doi:10.1007/978-3-319-11964-9_30 fatcat:an4gjadcavhjlkz5mrhe5cvdte

A survey on semantic question answering systems

Christina Antoniou, Nick Bassiliades
2022 Knowledge engineering review (Print)  
Recently, many question answering systems that derive answers from linked data repositories have been developed.  ...  The purpose of this survey is to identify the common features and approaches of the semantic question answering (SQA) systems, although many different and prototype systems have been designed.  ...  Intui2 system can answer only simple questions. QAKiS can handle simple queries (one triplet). Intui2 system was evaluated in QALD-3 DBpedia test and QALD-3 DBpedia train.  ... 
doi:10.1017/s0269888921000138 fatcat:3aml27j2ezcppgq3dq3qhe5dqe

A Survey of Datasets for Biomedical Question Answering Systems

Muhammad Wasim, Dr. Waqar, Dr. Usman
2017 International Journal of Advanced Computer Science and Applications  
The massively ever increasing amount of textual and linked biomedical data available online poses many challenges for information seekers.  ...  So, the focus of information retrieval community has shifted to precise information retrieval, i.e. providing exact answer to a user question.  ...  QALD-4: Biomedical Question Answering over Interlinked Data Question Answering over linked data (QALD) 3 started in 2011 viewing the wide spread of linked data over the web and focused on converting information  ... 
doi:10.14569/ijacsa.2017.080767 fatcat:efdlnjzxjjbnpibgldwtqf752e

Different Facets of Text Based Automated Question Answering System

vaishali Singh
2018 International Journal for Research in Applied Science and Engineering Technology  
allows users to find the answers to their questions in precise way.  ...  Therefore, this paper attempts to present the state-of-the-art in the field of text based automatic question answering systems and provide a qualitative analysis of different facets.  ...  QALD-3 [23] is the third version of the open challenge on Question Answering over Linked Data participated at CLEF 2013.  ... 
doi:10.22214/ijraset.2018.1017 fatcat:z2l3qicgvjawpcahqyr3alk3wy

Towards a Question Answering System over the Semantic Web [article]

Dennis Diefenbach and Andreas Both and Kamal Singh and Pierre Maret
2018 arXiv   pre-print
To summarize, we provided a conceptional solution for multilingual, KB-agnostic Question Answering over the Semantic Web. The provided first approximation validates this concept.  ...  Making this valuable data accessible and usable for end-users is one of the main goals of Question Answering (QA) over KBs. Most current QA systems query one KB, in one language (namely English).  ...  A list of the QA systems that were evaluated with QALD-3, QALD-4, QALD-5, QALD-6 can be found in Table 3 .  ... 
arXiv:1803.00832v1 fatcat:v5cw2nyffbaitnvin4dih6gfhy
« Previous Showing results 1 — 15 out of 40 results