Abstract
The demand for interfaces that allow users to interact with computers in an intuitive, effective, and efficient way is increasing. Question Answering (QA) systems address this need by answering questions posed by humans using knowledge bases. In recent years, many QA systems and related components have been developed both by practitioners and the research community. Since QA involves a vast number of (partially overlapping) subtasks, existing QA components can be combined in various ways to build tailored QA systems that perform better in terms of scalability and accuracy in specific domains and use cases. However, to the best of our knowledge, no systematic way exists to formally describe and automatically compose such components. Thus, in this work, we introduce QAestro, a framework for semantically describing both QA components and developer requirements for QA component composition. QAestro relies on a controlled vocabulary and the Local-as-View (LAV) approach to model QA tasks and components, respectively. Furthermore, the problem of QA component composition is mapped to the problem of LAV query rewriting, and state-of-the-art SAT solvers are utilized to efficiently enumerate the solutions. We have formalized 51 existing QA components implemented in 20 QA systems using QAestro. Our empirical results suggest that QAestro enumerates the combinations of QA components that effectively implement QA developer requirements.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsNotes
- 1.
- 2.
All components can be found at http://repository.okbqa.org.
- 3.
- 4.
- 5.
- 6.
The graph visualization was generated with cytoscape - http://www.cytoscape.org.
References
Androutsopoulos, I., Ritchie, G.D., Thanisch, P.: Natural language interfaces to databases - an introduction. Nat. Lang. Eng. 1(1), 29–81 (1995)
Arvelo, Y., Bonet, B., Vidal, M.: Compilation of query-rewriting problems into tractable fragments of propositional logic. In: Proceedings of the 21st National Conference on Artificial Intelligence and the 18th Innovative Applications of Artificial Intelligence Conference (2006)
Berardi, D., Cheikh, F., Giacomo, G.D., Patrizi, F.: Automatic service composition via simulation. Int. J. Found. Comput. Sci. 19(2), 429–451 (2008)
Bolc, L. (ed.): Natural Language Communication with Computers. LNCS, vol. 63. Springer, Heidelberg (1978). doi:10.1007/BFb0031367
Both, A., Diefenbach, D., Singh, K., Shekarpour, S., Cherix, D., Lange, C.: Qanary-a methodology for vocabulary-driven open question answering systems. In: ESWC (2016)
Cabrio, E., Cojan, J., Aprosio, A.P., Magnini, B., Lavelli, A., Gandon, F.: QAKiS: an open domain QA system based on relational patterns. In: Proceedings of the ISWC 2012 Posters and Demonstrations Track (2012)
Dubey, M., Dasgupta, S., Sharma, A., Höffner, K., Lehmann, J.: AskNow: a framework for natural language query formalization in SPARQL. In: Sack, H., Blomqvist, E., d’Aquin, M., Ghidini, C., Ponzetto, S.P., Lange, C. (eds.) ESWC 2016. LNCS, vol. 9678, pp. 300–316. Springer, Cham (2016). doi:10.1007/978-3-319-34129-3_19
Ferrández, Ó., Spurk, C., Kouylekov, M., Dornescu, I., Ferrández, S., Negri, M., Izquierdo, R., Tomás, D., Orasan, C., Neumann, G., Magnini, B., González, J.L.V.: The QALL-ME framework: a specifiable-domain multilingual question answering architecture. J. Web Semant. 9(2), 137–145 (2011)
Finkel, J.R., Grenager, T., Manning, C.D.: Incorporating non-local information into information extraction systems by Gibbs sampling. In: 43rd Annual Meeting of the Association for Computational Linguistics ACL (2005)
Gomes, C.P., Kautz, H.A., Sabharwal, A., Selman, B.: Satisfiability Solvers (2008)
Halevy, A.Y.: Answering queries using views: a survey. VLDB J. 10(4), 270–294 (2001)
Höffner, K., Walter, S., Marx, E., Usbeck, R., Lehmann, J., Ngonga Ngomo, A.-C.: Survey on challenges of question answering in the semantic web. Semant. Web J. (2016). http://www.semantic-web-journal.net/content/survey-challenges-question-answering-semantic-web
Izquierdo, D., Vidal, M.-E., Bonet, B.: An expressive and efficient solution to the service selection problem. In: Patel-Schneider, P.F., Pan, Y., Hitzler, P., Mika, P., Zhang, L., Pan, J.Z., Horrocks, I., Glimm, B. (eds.) ISWC 2010. LNCS, vol. 6496, pp. 386–401. Springer, Heidelberg (2010). doi:10.1007/978-3-642-17746-0_25
Konstantinidis, G., Ambite, J.L.: Scalable query rewriting: a graph-based approach. In: Proceedings of the ACM SIGMOD International Conference on Management of Data (2011)
Levy, A.Y., Rajaraman, A., Ordille, J.J.: Querying heterogeneous information sources using source descriptions. In: Proceedings of 22th International Conference on Very Large Data Bases (1996)
López, V., Uren, V.S., Sabou, M., Motta, E.: Is question answering fit for the semantic web?: a survey. Semant. Web 2(2), 125–155 (2011)
Marx, E., Usbeck, R., Ngomo, A.N., Höffner, K., Lehmann, J., Auer, S.: Towards an open question answering architecture. In: SEMANTICS (2014)
Mendes, P.N., Jakob, M., García-Silva, A., Bizer, C.: DBpedia spotlight: shedding light on the web of documents. In: Proceedings of the 7th International Conference on Semantic Systems, I-SEMANTICS (2011)
Singh, K., Both, A., Diefenbach, D., Shekarpour, S.: Towards a message-driven vocabulary for promoting the interoperability of question answering systems. In: ICSC (2016)
Ullman, J.D.: Information integration using logical views. Theor. Comput. Sci. 239(2), 189–210 (2000)
Unger, C., Bühmann, L., Lehmann, J., Ngomo, A.N., Gerber, D., Cimiano, P.: Template-based question answering over RDF data. In: WWW (2012)
Unger, C., Freitas, A., Cimiano, P.: An introduction to question answering over linked data. In: Koubarakis, M., Stamou, G., Stoilos, G., Horrocks, I., Kolaitis, P., Lausen, G., Weikum, G. (eds.) Reasoning Web 2014. LNCS, vol. 8714, pp. 100–140. Springer, Cham (2014). doi:10.1007/978-3-319-10587-1_2
Usbeck, R., Ngonga Ngomo, A.-C., Röder, M., Gerber, D., Coelho, S.A., Auer, S., Both, A.: AGDISTIS - graph-based disambiguation of named entities using linked data. In: Mika, P., et al. (eds.) ISWC 2014. LNCS, vol. 8796, pp. 457–471. Springer, Cham (2014). doi:10.1007/978-3-319-11964-9_29
Acknowledgements
Parts of this work received funding from the EU Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 642795 (WDAqua).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer International Publishing AG
About this paper
Cite this paper
Singh, K. et al. (2017). QAestro – Semantic-Based Composition of Question Answering Pipelines. In: Benslimane, D., Damiani, E., Grosky, W., Hameurlain, A., Sheth, A., Wagner, R. (eds) Database and Expert Systems Applications. DEXA 2017. Lecture Notes in Computer Science(), vol 10438. Springer, Cham. https://doi.org/10.1007/978-3-319-64468-4_2
Download citation
DOI: https://doi.org/10.1007/978-3-319-64468-4_2
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-64467-7
Online ISBN: 978-3-319-64468-4
eBook Packages: Computer ScienceComputer Science (R0)