OpenEphyra is an open-source framework for building question answering (QA) systems. It is designed to be modular, scalable, and flexible, allowing developers to easily create, extend, and customize QA systems for a wide range of applications.
OpenEphyra provides a number of core components that are common to many QA systems, such as:
- A question classifier: This component identifies the type of question that has been asked (e.g. factoid, definition, or list), which helps to determine the appropriate strategy for answering the question.
- A query generator: This component creates a query based on the question that has been asked, which can be used to search for relevant information in a knowledge base or other source of information.
- A passage retriever: This component retrieves a set of passages that are relevant to the question that has been asked, based on the query generated by the query generator.
- A passage ranker: This component ranks the retrieved passages according to their relevance to the question, which helps to identify the most useful passages for answering the question.
- An answer extractor: This component extracts the answer to the question from the ranked passages, using a variety of techniques, such as named entity recognition, coreference resolution, and sentence fusion.
OpenEphyra also provides a number of additional components that can be used to extend and customize QA systems, such as:
- A passage filter: This component filters out irrelevant or low-quality passages from the retrieved set, using a variety of techniques, such as keyword filtering and passage quality estimation.
- A passage augmenter: This component adds additional information to the retrieved passages, such as context or background knowledge, which can help to improve the accuracy and completeness of the answer.
- A feedback component: This component allows users to provide feedback on the quality of the answer, which can be used to improve the performance of the QA system over time.
In summary, OpenEphyra is an open-source framework for building question answering systems. It provides a set of core components that are common to many QA systems, as well as a number of additional components that can be used to extend and customize QA systems for specific applications. OpenEphyra is designed to be modular, scalable, and flexible, allowing developers to easily create, extend, and customize QA systems to meet their specific needs.
AskMSR | Interactive Question Answering | Question Generation | Question Generators | Question Semantic Representation (QSR) | SPARQL & Natural Language Question Answering (2011) | YourQA (York Question Answering System)
Multi-lingual question answering using OpenEphyra M van Zaanen – Working Notes for the Cross Language …, 2008 – ims-sites.dei.unipd.it Abstract In this article we describe our submission to the Dutch-English QA@ CLEF task. We took the publicly available OpenEphyra question answering system, which is an opensource English question answering system. This was turned into a multi-lingual variant by … Cited by 3 Related articles All 4 versions
Answer credibility: a language modeling approach to answer validation P Banerjee, H Han – … of Human Language Technologies: The 2009 …, 2009 – dl.acm.org … The OpenEphyra Question Answering testbed (Schlaefer, 2006) was then used as the framework for our Answer Credibility implementation. OpenEphyra uses a baseline Answer Validation mechanism which uses documents retrieved using Yahoo! … OpenEphyra QA TestBed … Cited by 5 Related articles All 6 versions
Experiments on related entity finding track at TREC 2009 Q Yang, P Jiang, C Zhang, Z Niu – 2009 – DTIC Document … 2.1. System Overview We complete our experimental system architecture as pipeline architecture by devising from OpenEphyra’s framework. Page 2. … Also, OpenEphyra employs wordnet to expand query terms. From the expanded query string, it generates some irrelevant terms. … Cited by 9 Related articles All 4 versions
Improving text retrieval precision and answer accuracy in question answering systems MW Bilotti, E Nyberg – Coling 2008: Proceedings of the 2nd workshop on …, 2008 – dl.acm.org … 1See: http://www.ephyra.info The common representation in OpenEphyra is a verb predicate-argument structure, augmented with named entity types, in which verb arguments are labeled with semantic roles in the style of Prop- Bank (Kingsbury et al., 2002). … Cited by 8 Related articles All 9 versions
The UC3M team at the Knowledge Base Population task C de Pablo-Sanchez, J Perea, I Segura-Bedmar… – Second Text Analysis …, 2009 – nist.gov … The second option, using the QA as a glass box reuses the internal 3http://www.ephyra.info 4http://lemurproject.org/indri Page 6. … Even in a modular system like OpenEphyra the main disadvantage is that it requires detailed knowledge of the components. … Cited by 4 Related articles All 2 versions
Exploiting semantic roles for asynchronous question answering in an educational setting D Wen, J Cuzzola, L Brown – Advances in Artificial Intelligence, 2012 – Springer … We enlisted the open source QA framework OpenEphyra to provide the four stage pipeline. PropBank semantic analysis was performed through the ASSERT software. … We began preliminary testing on the effectiveness of OpenEphyra with Prop- Bank style semantic filtering. … Cited by 1 Related articles All 3 versions
Data extraction from the web using wild card queries D Rafiei, H Li – Proceedings of the 18th ACM conference on …, 2009 – dl.acm.org … DeWild achieves a much better precision, with a good annotator agreement (kappa) of 0.66, for both short and a bit longer questions, retrieving a correct answer for twice as many queries as OpenEphyra. … 4http://www.ephyra.info 1941 Page 4. … Cited by 3 Related articles All 6 versions
Passage reranking for question answering using syntactic structures and answer types E Aktolga, J Allan, DA Smith – Advances in Information Retrieval, 2011 – Springer … We use the open domain question answering system OpenEphyra 0.1.1 as our system , , , which is a full implementation of a pipelined question answer- ing system. … (3) Candidate answer type detection with OpenEphyra must be successful. … Cited by 18 Related articles All 8 versions
Question Answering and Affective Language Processing in the PRAIA project F Pimenta, RS Wilkens, A Villavicencio – gia.inf.ufrgs.br … information retrieval • But allow more flexible interaction Value for money? Examples of QA • AnswerBus (http://www.answerbus.com) • Ephyra (http://www.ephyra.info) • TrueKnowledge (http://www.trueknowledge.com) Page 6. • To classify texts according to semantic orientation … Related articles
Cosine Similarity as Machine Reading Technique. G Arora, P Majumder – CLEF (Notebook Papers/Labs/ …, 2011 – clef2011.clef-initiative.eu … References 1. OpenEphyra System :- OpenDomain Question Answering System. http://www.ephyra.info/ 2. QA4MRE Final Guildline :- TECHNICAL COORDINATION, Pamela Forner, CELCT, Italy 3. Indri 3.0 :- opensource project maintained under apache licence. … All 3 versions
Reconstruct logical hierarchical sitemap for related entity finding Q Yang, P Jiang, C Zhang, Z Niu – 2010 – DTIC Document … 5.4 Related Entity Candidates Ranking It is well known that the search results ranking is not necessary responding to those extracted entities ranking. We apply the following formula to rank related entity candidates. 6 http://www.ephyra.info/ Page 7. ))( ( ? … Cited by 8 Related articles All 4 versions
Graduated locality-aware scheduling for search engines J Kelley, C Stewart – Proceedings of the Posters and Demo Track, 2012 – dl.acm.org … Figure 4: Chart includes data from a test set of eight questions, run over the OpenEphyra application requesting keys from Zo- olander using different ordering algorithms. … OpenEphyra was modified slightly to allow it to use data from a key-value storage system, Zoolander. … Related articles All 3 versions
IceQA: Developing a question answering system for Icelandic ÓP Geirsson – kennarar.ru.is … Some open source QA framworks exists, we had two particular sys- tems in mind. Firstly, OpenEphyra  developed at Carnegie Mellon and secondly QANUS  developed at the National University of Singapore. We researched both systems, beginning with OpenEphyra. … Related articles All 4 versions
Automatic set expansion for list question answering RC Wang, N Schlaefer, WW Cohen… – Proceedings of the …, 2008 – dl.acm.org … The source code of the answer extractors is in- cluded in OpenEphyra, an open source release of the system.2 The answer candidates from these extractors are combined and ranked by a statistical answer selec- tion framework … 2http://www.ephyra.info/ 3http://rcwang.com/seal … Cited by 24 Related articles All 12 versions
Cache provisioning for interactive nlp services J Kelley, C Stewart, S Elnikety… – Workshop on Large- …, 2013 – 2013.ladisworkshop.org … We set up two systems: Apache Lucene , an open source search engine, and OpenEphyra, an open source question answering system like IBM’s Page 2. Watson  that uses unstructured data. … OpenEphyra uses the NYT workload. … Cited by 2 Related articles All 3 versions
Pattern Based Indonesian Question Answering System H Toba, M Adriani – … of the International Conference on Advanced …, 2009 – researchgate.net … The question templates need to be manually developed according to various interrogative sentences that are independent for each natural language. 1 http://www.ephyra.info Fig. 1. Open Ephyra Framework (Schlaefer et.al., 2006) … Cited by 1 Related articles All 6 versions
Instructor-aided asynchronous question answering system for online education and distance learning D Wen, J Cuzzola, L Brown – The International Review of Research in …, 2012 – irrodl.org … We utilized the open source framework OpenEphyra which provides the four stage pipeline in a modular and extensible implementation (Schlaefer, Gieselmann, & Sautter, 2006). … Unfortunately, OpenEphyra out-of-the-box is geared toward factoid answers only. … Cited by 1 Related articles All 5 versions
Text based dialog system N Naushin, ZMA Kareem, R Chowdhury – 2009 – dspace.bracu.ac.bd … The intention of this document is to introduce the designers and researchers new to this field to tools and design techniques which may be used to develop dialog systems. We looked into systems such as OpenEphyra, Trindikit and Ariadne. … All 3 versions
Contextual Approach for Paragraph Selection in Question Answering Task. H Toba, S Sari, M Adriani… – … Notebook Papers/LABs/ …, 2010 – clef2010.clef-initiative.eu … each question type. The aim of this step is to interpret the questions and 2 http://www.ephyra.info 3 http://sourceforge.net/projects/jirs/ 4 http://semanticvectors. googlecode.com/ Page 3. transform them into queries. The question … Cited by 4 Related articles All 4 versions
TPE Based Tuple Extraction Method for Question and Answering System J Kim, K Kim – Information Science and Applications (ICISA), …, 2014 – ieeexplore.ieee.org …  Stanford Named Entity Recognizer (NER). Available : http://nlp.stanford.edu/software/ CRF-NER.shtml  OpenEphyra(Ephyra Question Answering System). Available : http://www.ephyra.info/  MIT Java WordNet Interface(JWI). Available : …
Effective and efficient structured retrieval L Zhao, J Callan – Proceedings of the 18th ACM conference on …, 2009 – dl.acm.org … We include this set despite characteristic differences. Questions were first transformed using simple syntactic rules into statements using the OpenEphyra system version 0.1.1 , and then parsed by ASSERT version 0.14b. Answer types were also predicted by OpenEphyra. … Cited by 7 Related articles
RALI Experiments in IR4QA at NTCIR-7 L Shi, JY Nie, G Cao – Proceedings of the 7th NTCIR Workshop …, 2008 – researchgate.net … We use Indri6 from Lemur Toolkit as our basic IR system. Indri combines an inference network with a 5 http://www.ephyra.info/ 6 http://www.lemurproject.org/indri/ language modeling approach, and supports structured query operators. 3.1 Combining Words and Word-Bigrams … Cited by 5 Related articles All 2 versions
Lads: Rapid development of a learning-to-rank based related entity finding system using open advancement B Lin, KD Rosa, R Shah… – Proceedings of the …, 2011 – research.microsoft.com … [Online]. Available: http://jsoup.org  Microsoft Bing API. [Online]. Available: http://www.bing.com/developers/  OpenEphyra Question Answering System. [Online]. Available: http://www.ephyra.info/  The Lemur Project. [Online]. … Cited by 3 Related articles All 7 versions
Indexing on semantic roles for question answering LA Pizzato, D Mollá – Coling 2008: Proceedings of the 2nd workshop on …, 2008 – dl.acm.org … some special cases. • OpenEphyra: Developed by Schlaefer et al. (2007), the OpenEphyra framework attempts to be a test bench for question answering tech- niques. The system approaches QA in a fairly standard way. Using a … Cited by 9 Related articles All 8 versions
Top-down and bottom-up: A combined approach to slot filling Z Chen, S Tamang, A Lee, X Li, M Passantino… – Information Retrieval …, 2010 – Springer … 3.3 Question Answering We also apply the web module of an open domain QA system, OpenEphyra (Schlae- fer et al., 2007) to retrieve candidate answers for the KBP slot filling task. … We use the answer confidence assigned by the OpenEphyra system as a re-ranking feature. … Cited by 10 Related articles All 10 versions
An Open Source Question Answering System Trained on Wikipedia Dumps Adapted to a Spoken Dialogue System Y Heikal – it-tjr7.dhbw-stuttgart.de … 2.1 Open Ephyra Open Ephyra can be downloaded from the following link: http://sourceforge. net/projects/openephyra/ … Go to scripts/ in the Open Ephyra folder and run one of the following: 1. OpenEphyra.sh: to run Open Ephyra using the web as a knowledge source. … Related articles
Wild Card Queries for Searching Resources on the Web D Rafiei, H Li – arXiv preprint arXiv:0908.2588, 2009 – arxiv.org … good annotator agreement (kappa) of 0.66, for both short and a bit longer questions, retrieving a correct answer for twice as many queries as OpenEphyra. … Clearly, any of the patterns in the ta- ble could have been used as a query and the result returned 7http://www.ephyra.info … Cited by 1 Related articles All 6 versions
Answer Extraction by Recursive Parse Tree Descent C Malon, B Bai – ACL 2013, 2013 – aclweb.org … 236 65.5% 20.4%. 311 (1333 questions) OpenEphyra 52.2% 13.1%. … In con- trast to our system, OpenEphyra’s question analy- sis module is trained to map questions to one of a fixed number of answer types, such as PERCENTAGE, or PROPER_NAME. PERSON. … Related articles All 5 versions
Intelligent Question–Answering Systems: Review of research R Matej?i?, C Rijeka – docs.mipro-proceedings.com … using local resources. A similar baseline experiment was performed in collaboration with Carnegie Mellon University (CMU) using OpenEphyra, an open-source QA framework developed primarily at CMU. The framework is …
Intelligent question—Answering systems: Review of research J Tomljanovic, M Pavlic, MA Katic – … Technology, Electronics and …, 2014 – ieeexplore.ieee.org … using local resources. A similar baseline experiment was performed in collaboration with Carnegie Mellon University (CMU) using OpenEphyra, an open-source QA framework developed primarily at CMU. The framework is …
A phased ranking model for question answering R Liu, E Nyberg – Proceedings of the 22nd ACM international conference …, 2013 – dl.acm.org … 5. QUESTION ANSWERING To compare the performance of our model with previous work on answer ranking, we built a baseline QA system using existing software (OpenEphyra 2 and some other available resources). … 2OpenEphyra, http://www.ephyra.info/ 82 Page 5. … Related articles
Who Discovered the Electron Neutrino? A Telephony-Based Distributed Open-Source Standard-Compliant Spoken Dialog System for Question Answering T Mehrez, A Abdelkawy, Y Heikal, P Lange, H Nabil… – halef.org … By taking open-source components from heterogeneous sources (Sphinx, FreeTTS, Cairo, Zanzibar, JVoiceXML, Apache, Ruby on Rails, Asterisk, and OpenEphyra), we established an SDS that is callable from SIP clients as well as PSTN phone lines. … Related articles All 6 versions
Leveraging the network information for evaluating answer quality in a collaborative question answering portal L Chen, R Nayak – Social Network Analysis and Mining, 2012 – Springer Logo Springer. Search Options: … Cited by 3 Related articles All 5 versions
Building Watson: An overview of the DeepQA project D Ferrucci, E Brown, J Chu-Carroll, J Fan, D Gondek… – AI magazine, 2010 – aaai.org … the Jeopardy Challenge. A similar baseline experiment was performed in collaboration with Carnegie Mellon University (CMU) using OpenEphyra,5 an open-source QA framework developed primarily at CMU. The framework … Cited by 403 Related articles All 37 versions
Multi-lingual Question Answering HL Li – ilk.uvt.nl … 25 – 3.3 Multi-lingual question answering – OpenEphyra ….. 28 – … One of the QA systems that participated in both competitions is OpenEphyra, an open-source question answering system (Schlaefer et al., 2006, 2007, van Zaanen, 2008). … Related articles
Language modeling approaches to question answering P Banerjee – 2009 – idea.library.drexel.edu … 142 5.2.1 Theory and Approach ….. 142 5.2.2 The OpenEphyra Question Answering System ….. 145 5.2.3 Experiment Methodology ….. 148 … Cited by 1 Related articles All 5 versions
Question answering for Portuguese: how much is needed? R Wilkens, A Villavicencio – Advances in Artificial Intelligence–SBIA 2010, 2011 – Springer … For example, LAMP has as distinctive feature the use of snippets returned by Google, while Ephyra (or OpenEphyra) is the first open framework for QA that retrieves accurate responses to questions in natural language using the Web. … Cited by 1 Related articles All 9 versions
Language-Independent Class Instance Extraction Using the Web RC Wang – 2009 – lti.cs.cmu.edu Page 1. Language-Independent Class Instance Extraction Using the Web Richard C. Wang gw Ev sEHWEHPH Language Technologies Institute School of Computer Science Carnegie Mellon University 5000 Forbes Ave., Pittsburgh, PA 15213 Thesis Committee … Cited by 3 Related articles All 9 versions
Towards a thematic role based target identification model for question answering R Perera, U Perera – International Journal of Advancements in Technology, 2012 – ijict.org … for the given query. However, in their research which warps around the OpenEphyra question answering system, shows that passage ranking is not the most important task in question answering. Ganesh et al.  also support … Related articles All 8 versions
Syntactic and semantic models and algorithms in Question Answering A Solovyev – rcdl2011.vsu.ru … SRL gives two-level hierarchy: predicates and arguments. Dependencies between arguments are not considered – they all depends on predicate. OpenEphyra: [Schlaefer. A Semantic Approach to Question Answering. 2007] <ARGM_TMP>In what year was … Related articles
The AI Behind Watson—The Technical Article AI Magazine – AI Magazine, 2010 – aaai.org … A similar baseline experiment was performed in collaboration with Carnegie Mellon University (CMU) using OpenEphyra, 5 an open-source QA framework developed primarily at CMU. … 4. trec.nist.gov/proceedings/proceedings.html. 5. sourceforge.net/projects/openephyra/. … Related articles All 2 versions
The QALL-ME framework: A specifiable-domain multilingual question answering architecture O Ferrandez, C Spurk, M Kouylekov, I Dornescu… – Web semantics: Science …, 2011 – Elsevier … Textual-based QA systems retrieve answers from the Web and/or other textual sources. Systems like Qanda, 13 OpenEphyra, 14 Aranea, 15 QANUS 16 and OSQA 17 pertain to this category. … Qanda, Text/Web, Monolingual, Explicit. OpenEphyra, Text/Web, Monolingual, Explicit. … Cited by 10 Related articles All 20 versions
Open-Domain multi-document summarization via information extraction: Challenges and prospects H Ji, B Favre, WP Lin, D Gillick, D Hakkani-Tur… – Multi-source, …, 2013 – Springer … The filtering steps include removing answers which have inappropriate entity types or involve inappropriate dependency paths to the entities. We also apply an open domain QA system, OpenEphyra [ 32 ] to retrieve more candidate answers. … Cited by 5 Related articles All 7 versions
Answer Selection in Question/Answering HP Rodrigues – 2012 – fenix.tecnico.ulisboa.pt … probability is higher. 2.1.4 N-grams approach Aranea [26, 25] and OpenEphyra  use similar strategies between them. Aranea generates … candidate answers. Identically, candidate answers extracted by patterns in OpenEphyra are given an initial score. … Related articles All 2 versions
A Survey on Question Answering System BC Das – cfilt.iitb.ac.in … challenged to compete with the champions at Jeopardy game show. The project started in 2007 and was finished in 2011, where it made its public appearance. It was 2 http://sourceforge.net/ projects/openephyra/ Page 12. PAGE 11 able to beat two Jeopardy Champions. …
Question-answering systems: Development and prospects VA Lapshin – Automatic Documentation and Mathematical …, 2012 – Springer … SUS was discussed in a more detail in [5, 6]. The best known open source question answering systems are OpenEphyra  and PIQUANT  (the next generation of this system, which is known as Wat son, will be discussed in a more detail in Section 3). … 3. 7. OpenEphyra. … Cited by 1 Related articles All 4 versions
How to cope with questions typed by dyslexic users L Sitbon, P Bellot – Proceedings of the second workshop on Analytics for …, 2008 – dl.acm.org Page 1. How to cope with questions typed by dyslexic users Laurianne Sitbon Laboratoire d’Informatique d’Avignon University of Avignon 339, chemin des Meinajaries Avignon, France firstname.lastname@example.org Patrice … Cited by 6 Related articles All 2 versions
Index structures for efficiently searching natural language text P Chubak, D Rafiei – Proceedings of the 19th ACM international …, 2010 – dl.acm.org … Finally, question answering systems often rely on NLP components that may directly or indirectly use wild card queries. Examples are taxonomy construction, fact extraction, named entity recog- 1See OpenEphyra  for an example 689 Page 2. … Cited by 2 Related articles All 5 versions
Creating conversational characters using question generation tools X Yao, E Tosch, G Chen, E Nouri, R Artstein… – Dialogue & …, 2012 – elanguage.net … Eisner (2006). 2.3 OpenAryhpe In addition to using the Question Transducer tool, we also developed a partial reimplementation in the framework of OpenEphyra (Schlaefer et al., 2006) which we call OpenAryhpe. The difference … Cited by 4 Related articles All 9 versions
The workshop on diversity in systems research 2013 C Stewart, V Gupta – ACM SIGOPS Operating Systems Review, 2014 – dl.acm.org … We quantify quality loss due to increases in data on Apache Lucene and OpenEphyra, a question answering service like IBM’s Wat- son  but using unstructured data, and show that provisioning more DRAM cache on quality loss reduces costs over time by 6- 52 percent … Related articles
Dependency-Based Algorithms for Answer Validation Task in Russian Question Answering A Solovyev – Language Processing and Knowledge in the Web, 2013 – Springer … 3.4 Predicates Matching In the OpenEphyra system a hybrid algorithm of Lexical Overlap and Trees Align- ment is used . It considers a Semantic Role Labeling done by the ASSERT parser , which marks predicates and their arguments. … Related articles All 2 versions
Just. Ask—A Multi-Pronged Approach To Question Answering AC Mendes, L Coheur, J Silva… – International Journal on …, 2013 – World Scientific … OpenEphyra is a framework for QA de- rived from the Ephyra system.28 This framework follows a more semantic approach, namely regarding the extraction of candidate answers: several similarity measures are calculated between the semantic structures of the question and … Cited by 2 Related articles
Temporal Planning and Inferencing for Personal Task Management with SPSE2 A Dougherty – frdcsa.org … This functionality actually resides within UniLang. A limited set of voice commands has been developed, en- abling the phone to for instance answer factoid-based ques- tions using our agent wrapping the open source OpenEphyra question answering system. … Related articles All 3 versions
Adding smarter systems instead of human annotators: re-ranking for system combination S Tamang, H Ji – Proceedings of the 1st international workshop on …, 2011 – dl.acm.org … seen entities. To further complement our final answer set, we also apply an open domain QA system, OpenEphyra  to retrieve additional candidate answers that may have not been identified by IE or pattern learning. To estimate … Cited by 7 Related articles All 2 versions
Information Network Construction and Alignment from Automatically Acquired Comparable Corpora H Ji, A Lee, WP Lin – Building and Using Comparable Corpora, 2013 – Springer … The filtering steps include removing answers which have inappropriate entity types or involve inappropriate dependency paths to the entities. We also apply an open domain QA system, OpenEphyra [ 24 ] to retrieve more relations and events. … Related articles All 2 versions
Evaluating Robustness Of A QA System Through A Corpus Of Real-Life Questions. L Sitbon, P Bellot, P Blache – LREC, 2008 – cs.brandeis.edu … In 13ième conférence Traitement Automatique des Langues Naturelles (TALN), pages 337–346, Lou- vain, Belgique, 10-13 April. 8OpenEphyra QA system is now available into open source (http://www.ephyra.info/) Page 5. Laurianne Sitbon, Patrice Bellot, and Philippe Blache. … Cited by 2 Related articles All 8 versions
Chemical Text Mining for Lead Discovery M Karthikeyan, R Vyas – Practical Chemoinformatics, 2014 – Springer … OpenEphyra is a full-featured, end-to-end system for QA written in Java and developed at Carnegie Mellon University’s (CMU’s) Language Technologies Institute (LTI) department [ 57 ]. Other tools worth mentioning are GENIA Tagger [ 58 ], MetaMap [ 59 ], and Yamcha [ 60 ]. … Related articles
Tackling representation, annotation and classification challenges for temporal knowledge base population H Ji, T Cassidy, Q Li, S Tamang – Knowledge and Information Systems, 2013 – Springer … The QA pipeline employs an open domain QA system, OpenEphyra , treating answers as candidate slot fills. To estimate the relevance of an answer, we use the Corrected Conditional Probability (CCP) for answer validation. … Cited by 6 Related articles All 2 versions
Textual resource acquisition and engineering J Chu-Carroll, J Fan, N Schlaefer… – IBM Journal of …, 2012 – ieeexplore.ieee.org Page 1. Textual resource acquisition and engineering J. Chu-Carroll J. Fan N. Schlaefer W. Zadrozny A key requirement for high-performing question-answering (QA) systems is access to high-quality reference corpora from … Cited by 14 Related articles All 3 versions
Elementary? Question answering, IBM’s Watson, and the Jeopardy! challenge R Chandrasekar – Resonance, 2014 – Springer … 7. DeepQA Architecture DeepQA is the software architecture for the massively parallel 4 http://sourceforge.net/projects/ openephyra/ Statistics were computed over the 74 games that Ken Jennings won in a row; he managed to answer 62% of the questions with 92% precision. … Related articles All 5 versions
Balanced and Predictable Networked Storage J Kelley, C Stewart – Distributed Computing Systems …, 2013 – ieeexplore.ieee.org … In USENIX Symp. on Networked Systems Design and Implementation, 2011.  Openephyra: Question answering system. https://mu.lti.cs.cmu.edu/trac/ Ephyra/wiki/OpenEphyra.  R. Power and J. Li. Piccolo: Building fast, distributed programs with partitioned tables. … Cited by 2 Related articles All 5 versions
Temporal Information Extraction And Knowledge Base Population T CASSIDY – 2014 – nlp.cs.rpi.edu Page 1. TEMPORAL INFORMATION EXTRACTION AND KNOWLEDGE BASE POPULATION by TAYLOR CASSIDY A dissertation submitted to the Graduate Faculty in Linguistics in partial fulfillment of the requirements for the … Related articles
Feasibility of the Application of Semantic Web Ontologies To Enhance Question Answering Systems in Practical Domains D Holmes – 2012 – scholarworks.calstate.edu Page 1. F easibilityofthe A pplicationof S emantic W eb O ntologiesto E nhance Q uestion A nswering S ystemsin P ractical D omains A Thesis Presented to The Faculty of the Computer Science Program California State University Channel Islands In (Partial) Fulfillment … Related articles All 4 versions