. Berners-lee, World???Wide Web: The Information Universe, Internet Research, vol.2, issue.1, pp.52-58, 1992.
DOI : 10.1108/eb047254

. Berners-lee, The semantic web. Scientific American, 2001.

. Bernstein, Querying the semantic web with Ginseng: A guided input natural language search engine, Work. Information Technology and Systems (WITS), pp.15-48, 2005.

. Bollacker, Freebase, Proceedings of the 2008 ACM SIGMOD international conference on Management of data , SIGMOD '08, pp.1247-1250, 2008.
DOI : 10.1145/1376616.1376746

. Bosc, . Pivert, P. Bosc, and O. Pivert, SQLf: a relational database language for fuzzy querying, IEEE Transactions on Fuzzy Systems, vol.3, issue.1, pp.1-17, 1995.
DOI : 10.1109/91.366566

. Buffa, SweetWiki: A semantic wiki, Web Semantics: Science, Services and Agents on the World Wide Web, vol.6, issue.1, pp.84-97, 2008.
DOI : 10.1016/j.websem.2007.11.003
URL : https://hal.archives-ouvertes.fr/hal-01154473

V. Bush, As we may think. The atlantic monthly, pp.101-108, 1945.

. Cabrio, QAKiS: an open domain QA system based on relational patterns, Int. Semantic Web Conf. (Posters & Demos), volume 914 of CEUR Workshop Proceedings. Cited on, p.14, 2012.
URL : https://hal.archives-ouvertes.fr/hal-01171115

. Carpineto, . Romano, C. Carpineto, and G. Romano, A lattice conceptual clustering system and its application to browsing retrieval, Machine Learning, pp.95-122, 1996.
DOI : 10.1007/BF00058654

H. Ferré, S. Ferré, and A. Hermann, Reconciling faceted search and query languages for the Semantic Web, International Journal of Metadata, Semantics and Ontologies, vol.7, issue.1, pp.37-54, 2012.
DOI : 10.1504/IJMSO.2012.048508

K. Ferré, S. Ferré, and R. D. King, BLID: An Application of Logical Information Systems to Bioinformatics, Int. Conf. Formal Concept Analysis, pp.47-54, 2004.
DOI : 10.1007/978-3-540-24651-0_5

K. Ferré, S. Ferré, and R. D. King, A dichotomic search algorithm for mining and learning in domain-specific logics. Fundamenta Informaticae ? Special Issue on Advances in Mining Graphs, Trees and Sequences, vol.66, issue.12, pp.1-32, 2005.

K. Ferré, S. Ferré, and R. D. King, Finding Motifs in Protein Secondary Structure for Use in Function Prediction, Journal of Computational Biology, vol.13, issue.3, pp.719-731, 2006.
DOI : 10.1089/cmb.2006.13.719

R. Ferré, S. Ferré, and O. Ridoux, A File System Based on Concept Analysis, International Conference on Rules and Objects in Databases, number 1861 in Lecture Notes in Computer Science, pp.1033-1047, 2000.
DOI : 10.1007/3-540-44957-4_69

R. Ferré, S. Ferré, and O. Ridoux, A logical generalization of formal concept analysis, International Conference on Conceptual Structures, number 1867 in Lecture Notes in Computer Science, pp.371-384, 2000.

R. Ferré, S. Ferré, and O. Ridoux, A Framework for Developing Embeddable Customized Logics, Int. Work. Logic-based Program Synthesis and Transformation, pp.191-215, 2001.
DOI : 10.1007/3-540-45607-4_11

R. Ferré, S. Ferré, and O. Ridoux, Searching for Objects and Properties with Logical Concept Analysis, International Conference on Conceptual Structures, pp.187-201, 2001.
DOI : 10.1007/3-540-44583-8_14

R. Ferré, S. Ferré, and O. Ridoux, The Use of Associative Concepts in the Incremental Building of a Logical Context, Int. Conf. Conceptual Structures, pp.299-313, 2002.
DOI : 10.1007/3-540-45483-7_23

C. Belleannee, P. Brisset, and O. Ridoux, A pragmatic reconstruction of ??Prolog, The Journal of Logic Programming, vol.41, issue.1, pp.67-102, 1999.
DOI : 10.1016/S0743-1066(98)10038-9
URL : https://hal.archives-ouvertes.fr/hal-00934033

R. J. Brachman, On the epistemological status of semantic nets Associative Networks: Representation of Knowledge and Use of Knowledge by Examples, 1979.

L. Chaudron and N. Maille, 1st order logic formal concept analysis: from logic programming to theory, Computer and Information Science, vol.13, issue.3, 1998.

Y. Chiaramella, Browsing and querying: two complementary approaches for multimedia information retrieval, Hypermedia -Information Retrieval -Multimedia, pp.9-26, 1997.

R. Cole and G. Stumme, CEM ??? A Conceptual Email Manager, Int. Conf. Conceptual Structures. LNCS 1867, pp.438-452, 2000.
DOI : 10.1007/10722280_30

F. Crestani and M. Lalmas, Logic and uncertainty in information retrieval, 2001.

P. Allard and S. Ferré, Dynamic Taxonomies for the Semantic Web, 2008 19th International Conference on Database and Expert Systems Applications, pp.382-386, 2008.
DOI : 10.1109/DEXA.2008.71
URL : https://hal.archives-ouvertes.fr/hal-00284992

G. Amato and C. Meghini, Faceted Content-Based Image Retrieval, 2008 19th International Conference on Database and Expert Systems Applications, pp.402-406, 2008.
DOI : 10.1109/DEXA.2008.125

O. Bedel, S. Ferré, O. Ridoux, and E. Quesseveur, GEOLIS: a logical information system for geographical data, Revue internationale de g??omatique, vol.17, issue.3-4, pp.3-4, 2008.
DOI : 10.3166/geo.17.371-390
URL : https://hal.archives-ouvertes.fr/inria-00187048

C. Carpineto and G. Romano, A lattice conceptual clustering system and its application to browsing retrieval, Machine Learning, pp.95-122, 1996.
DOI : 10.1007/BF00058654

R. Cole, P. Eklund, and G. Stumme, Document retrieval for e-mail search and discovery using formal concept analysis, Applied Artificial Intelligence, vol.17, issue.3, pp.257-280, 2003.
DOI : 10.1080/713827120

R. Datta, J. Li, and J. Z. Wang, Content-based image retrieval, Proceedings of the 7th ACM SIGMM international workshop on Multimedia information retrieval , MIR '05, pp.253-262, 2005.
DOI : 10.1145/1101826.1101866

J. Ducrou and P. Eklund, AN INTELLIGENT USER INTERFACE FOR BROWSING AND SEARCHING MPEG-7 IMAGES USING CONCEPT LATTICES, International Journal of Foundations of Computer Science, vol.19, issue.02, pp.359-381, 2008.
DOI : 10.1142/S0129054108005723

J. Ducrou, B. Vormbrock, and P. W. Eklund, FCA-Based Browsing and Searching of a Collection of Images, Int. Conf. Conceptual Structures, pp.203-214, 2006.
DOI : 10.1007/11787181_15

S. Ferré and O. Ridoux, A Logical Generalization of Formal Concept Analysis, Int. Conf. Conceptual Structures, LNCS 1867 Springer, pp.371-384, 2000.

S. Ferré and O. Ridoux, A Framework for Developing Embeddable Customized Logics, Int. Work. Logic-based Program Synthesis and Transformation, pp.191-215, 2002.
DOI : 10.1007/3-540-45607-4_11

S. Ferré and O. Ridoux, Introduction to logical information systems, Information Processing & Management, vol.40, issue.3, pp.383-419, 2004.
DOI : 10.1016/S0306-4573(03)00018-9

S. Ferré and O. Ridoux, Logic Functors: A Toolbox of Components for Building Customized and Embeddable Logics, 2006.

B. Ganter and R. Wille, Formal Concept Analysis ? Mathematical Foundations, 1999.

D. K. Gifford, P. Jouvelot, M. A. Sheldon, O. Toole, and J. W. , Semantic file systems, ACM SIGOPS, pp.16-25, 1991.
DOI : 10.1145/121133.121138

R. Godin, R. Missaoui, and A. April, Experimental comparison of navigation in a Galois lattice with conventional information retrieval methods, International Journal of Man-Machine Studies, vol.38, issue.5, pp.747-767, 1993.
DOI : 10.1006/imms.1993.1035

E. Hyvönen, A. Styrman, and S. Saarela, Ontology-Based Image Retrieval, Towards the Semantic Web and Web Services XML Finland Association, pp.15-27, 2002.

S. Kuznetsov and S. Objedkov, Comparing performance of algorithms for generating concept lattices, ICCS-2001 Int. Workshop on Concept Lattices-based Theory, Methods and Tools for Knowledge Discovery in Databases CRIL ? IUT de, 2001.
DOI : 10.1016/S0020-0190(99)00108-8

J. Lambek, Pregroups and natural language processing. Science+Business media, pp.41-48, 2006.
DOI : 10.1007/bf02987155

C. Lindig, Concept-Based Component Retrieval, 1995.

J. Martinez and E. Loisant, Browsing image databases with Galois' lattices, Proceedings of the 2002 ACM symposium on Applied computing , SAC '02, pp.791-795, 2002.
DOI : 10.1145/508791.508944

D. R. Millen, J. Feinberg, and B. Kerr, Dogear, Proceedings of the SIGCHI conference on Human Factors in computing systems , CHI '06, pp.111-120, 2006.
DOI : 10.1145/1124772.1124792

Y. Padioleau and O. Ridoux, A Logic File System, pp.99-112, 2003.
URL : https://hal.archives-ouvertes.fr/inria-00071929

G. Stumme, R. Taouil, Y. Bastide, N. Pasquier, and L. Lakhal, Computing iceberg concept lattices with Titanic, Data & Knowledge Engineering, vol.42, issue.2, pp.189-222, 2002.
DOI : 10.1016/S0169-023X(02)00057-5
URL : https://hal.archives-ouvertes.fr/hal-00578830

S. Tobies, The complexity of reasoning with cardinality restrictions and nominals in expressive Description Logics, J. Artificial Intelligence Research (JAIR), vol.12, pp.199-217, 2000.

D. X. Zhou, N. Oostendorp, M. Hess, and P. Resnick, Conversation pivots and double pivots, Proceeding of the twenty-sixth annual CHI conference on Human factors in computing systems , CHI '08, pp.959-968, 2008.
DOI : 10.1145/1357054.1357209

R. Angles, R. Gutierrez, and C. , The Expressive Power of SPARQL, LNCS, vol.5318, pp.114-129, 2008.
DOI : 10.1007/978-3-540-74565-5_14

F. Baader, D. Calvanese, D. L. Mcguinness, D. Nardi, and P. Patel-schneider, The Description Logic Handbook: Theory, Implementation, and Applications, 2003.
DOI : 10.1017/CBO9780511711787

J. Brooke, SUS: A quick and dirty usability scaleUsability evaluation in industry, pp.189-194, 1996.

S. Ferré, Camelis: a logical information system to organise and browse a collection of documents, International Journal of General Systems, vol.12, issue.4, 2009.
DOI : 10.1016/S0169-023X(02)00057-5

S. Ferré and O. Ridoux, A File System Based on Concept Analysis, Int. Conf. Rules and Objects in Databases', LNCS 1861, pp.1033-1047, 2000.
DOI : 10.1007/3-540-44957-4_69

S. Ferré and O. Ridoux, Introduction to logical information systems, Information Processing & Management, vol.40, issue.3, pp.383-419, 2004.
DOI : 10.1016/S0306-4573(03)00018-9

S. Ferré and O. Ridoux, Logical Information Systems: from Taxonomies to Logics, 18th International Conference on Database and Expert Systems Applications (DEXA 2007), pp.212-216, 2007.
DOI : 10.1109/DEXA.2007.47

R. Fikes, P. J. Hayes, and I. Horrocks, OWL-QL???a language for deductive query answering on the Semantic Web, Web Semantics: Science, Services and Agents on the World Wide Web, vol.2, issue.1, pp.19-29, 2004.
DOI : 10.1016/j.websem.2004.07.002

P. Haase, J. Broekstra, A. Eberhart, and R. Volz, A Comparison of RDF Query Languages, LNCS, vol.3298, pp.502-517, 2004.
DOI : 10.1007/978-3-540-30475-3_35

A. Harth, VisiNav: A system for visual search and navigation on web data, Web Semantics: Science, Services and Agents on the World Wide Web, vol.8, issue.4, pp.348-354, 2010.
DOI : 10.1016/j.websem.2010.08.001

M. Hearst, A. Elliott, J. English, R. Sinha, K. Swearingen et al., Finding the flow in web site search, Communications of the ACM, vol.45, issue.9, pp.42-49, 2002.
DOI : 10.1145/567498.567525

P. Heim, T. Ertl, and J. Ziegler, Facet Graphs: Complex Semantic Querying Made Easy, Semantic Web Conference', pp.288-302, 2010.
DOI : 10.1007/978-3-642-13486-9_20

A. Hermann, S. Ferré, and M. Ducassé, Guided creation and update of objects in RDF(S) bases, Proceedings of the sixth international conference on Knowledge capture, K-CAP '11, pp.189-190, 2011.
DOI : 10.1145/1999676.1999719
URL : https://hal.archives-ouvertes.fr/hal-00654084

M. Hildebrand, J. Van-ossenbruggen, and L. Hardman, /facet: A Browser for Heterogeneous Semantic Web Repositories, LNCS, vol.4273, pp.272-285, 2006.
DOI : 10.1007/11926078_20

E. Kaufmann and A. Bernstein, Evaluating the usability of natural language query languages and interfaces to Semantic Web knowledge bases, Web Semantics: Science, Services and Agents on the World Wide Web, vol.8, issue.4, pp.377-393, 2010.
DOI : 10.1016/j.websem.2010.06.001

J. Lu, L. Ma, L. Zhang, J. Brunner, C. Wang et al., SOR: A practical system for ontology storage, reasoning and search (demo), in 'Int, Conf. Very Large Databases (VLDB)', VLDB Endowment, ACM, pp.1402-1405, 2007.

E. Mäkelä, E. Hyvönen, and S. Saarela, Ontogator -a semantic view-based search engine service for web applications, LNCS, vol.4273, pp.847-860, 2006.

G. Marchionini, Exploratory search, Communications of the ACM, vol.49, issue.4, pp.41-46, 2006.
DOI : 10.1145/1121949.1121979

E. Oren, R. Delbru, and S. Decker, Extending Faceted Navigation for RDF Data, LNCS, vol.4273, pp.559-572, 2006.
DOI : 10.1007/11926078_40

J. Pérez, M. Arenas, and C. Gutierrez, nSPARQL: A Navigational Language for RDF, LNCS, vol.40, issue.1, pp.66-81, 2008.
DOI : 10.1007/11926078_3

G. M. Sacco, Dynamic taxonomies: a model for large information bases, IEEE Transactions on Knowledge and Data Engineering, vol.12, issue.3, pp.468-479, 2000.
DOI : 10.1109/69.846296

G. M. Sacco, Some research results in dynamic taxonomy and faceted search systems, in 'Faceted Search Work, 2006.

G. M. Sacco and . Tzitzikas, Dynamic taxonomies and faceted search, The information retrieval series, 2009.

E. Sirin and B. Parsia, SPARQL-DL: SPARQL query for OWL-DL, Work. OWL Experiences and Directions, vol.258, 2007.

O. Suominen, K. Viljanen, and E. Hyvönen, Usercentric faceted search for semantic portals, Semantic Web Conf.', LNCS 4519, pp.356-370, 2007.

T. Tran, H. Wang, and P. Haase, Hermes: Data Web search on a pay-as-you-go integration infrastructure, Web semantics: Science, Services and Agents on the World Wide Web, pp.189-203, 2009.
DOI : 10.1016/j.websem.2009.07.001

C. J. Van-rijsbergen, A new theoretical framework for information retrieval, in 'Int, ACM SIGIR Conference on Research and Development in Information Retrieval', ACM, pp.194-200, 1986.

?. Adjsuper and {. ?x, ?s.(modif " ORDER BY DESC(x) LIMIT 1 " s) } PrepNoun{Det} ? in Det graph { ?x.?s.(context GRAPH x s) }

?. Det and N. ?x, (ng1 x) } ? NPC2 (Det) of NP { ?y.(np ?x

. Vphave, (noun2 x y)) } ? NP2 Rel ? { ?x

C. ?s, (pp (cp s)) } PP : m s ? Prep NP { ?s.(np ?z.(prep z s)) } ? PrepNoun{Det} App? Rel ? { ?s.(det ?z.(and (app z) (rel z)) ?z

?. Rel and S. Prep, prep x s) } ? PrepNoun{which} S { ?x

]. S. Ferré, SQUALL: A Controlled Natural Language as Expressive as SPARQL 1.1, Int. Conf. Application of Natural Language to Information Systems (NLDB), pp.114-125, 2013.
DOI : 10.1007/978-3-642-38824-8_10

S. Ferré, SQUALL: A Controlled Natural Language for Querying and Updating RDF Graphs, Controlled Natural Languages, pp.11-25, 2012.
DOI : 10.1007/978-3-642-32612-7_2

J. Pérez, M. Arenas, and C. Gutierrez, Semantics and complexity of SPARQL, Int. Semantic Web Conf, pp.30-43, 2006.
DOI : 10.1145/1567274.1567278

M. Hildebrand, J. Van-ossenbruggen, and L. Hardman, /facet: A Browser for Heterogeneous Semantic Web Repositories, Int. Semantic Web Conf, pp.272-285, 2006.
DOI : 10.1007/11926078_20

E. Oren, R. Delbru, and S. Decker, Extending Faceted Navigation for RDF Data, Int. Semantic Web Conf, pp.559-572, 2006.
DOI : 10.1007/11926078_40

S. Ferré and A. Hermann, Reconciling faceted search and query languages for the Semantic Web, International Journal of Metadata, Semantics and Ontologies, vol.7, issue.1, pp.37-54, 2012.
DOI : 10.1504/IJMSO.2012.048508

V. Lopez, V. S. Uren, M. Sabou, and E. Motta, Is question answering fit for the semantic web?: A survey, pp.125-155, 2011.

D. Damljanovic, M. Agatonovic, and H. Cunningham, Identification of the question focus: Combining syntactic analysis and ontology-based lookup through the user interaction, Language Resources and Evaluation Conference (LREC), ELRA, 2010.

V. Lopez, M. Fernández, E. Motta, and N. Stieler, PowerAqua: Supporting users in querying and exploring the semantic web, Semantic Web, vol.3, issue.3, pp.249-265, 2012.

A. Bernstein, E. Kaufmann, and C. Kaiser, Querying the semantic web with Ginseng: A guided input natural language search engine, Work. Information Technology and Systems (WITS), 2005.

P. Cimiano, V. Lopez, C. Unger, E. Cabrio, A. N. Ngomo et al., Multilingual Question Answering over Linked Data (QALD-3): Lab Overview, Information Access Evaluation. Multilinguality, Multimodality, and Visualization -Int. Conf. CLEF Initiative, pp.321-332, 2013.
DOI : 10.1007/978-3-642-40802-1_30
URL : https://hal.archives-ouvertes.fr/hal-00908804

A. Hermann, S. Ferré, and M. Ducassé, An Interactive Guidance Process Supporting Consistent Updates of RDFS Graphs, Int. Conf. Knowledge Engineering and Knowledge Management (EKAW), LNAI 7603, pp.2012-185
DOI : 10.1007/978-3-642-33876-2_18
URL : https://hal.archives-ouvertes.fr/hal-00757083

N. E. Fuchs and R. Schwitter, Web-Annotations for Humans and Machines, European Semantic Web Conference, pp.458-472, 2007.
DOI : 10.1007/978-3-540-72667-8_33

T. Kuhn, A survey and classification of controlled natural languages, Computational Linguistics

P. Smart, Controlled natural languages and the semantic web, 2008.

N. E. Fuchs, K. Kaljurand, and G. Schneider, Attempto Controlled English meets the challenges of knowledge representation, reasoning, interoperability and user interfaces, FLAIRS Conference, pp.664-669, 2006.

R. Schwitter, K. Kaljurand, A. Cregan, C. Dolbear, and G. Hart, A comparison of three controlled natural languages for OWL 1, Workshop on OWL: Experiences and Directions (OWLED), 2008.

P. Haase, J. Broekstra, A. Eberhart, and R. Volz, A Comparison of RDF Query Languages, Int. Semantic Web Conf, pp.502-517, 2004.
DOI : 10.1007/978-3-540-30475-3_35

R. Montague, Universal grammar, Theoria, vol.26, issue.3, pp.373-398, 1970.
DOI : 10.1111/j.1755-2567.1970.tb00434.x

H. Barendregt, The Lambda Calculus, Its Syntax and Semantics, of Studies in Logic and the Foundations of Mathematics, 1985.

L. Damas and R. Milner, Principal type-schemes for functional programs, Proceedings of the 9th ACM SIGPLAN-SIGACT symposium on Principles of programming languages , POPL '82, pp.207-212, 1982.
DOI : 10.1145/582153.582176

D. Biber, S. Johansson, G. Leech, S. Conrad, and E. Finegan, Longman grammar of spoken and written English, 1999.

P. Hsu and D. S. Jr, Improving SQL with generalized quantifiers, Int. Conf. Data Engineering, pp.298-305, 1995.

L. Sterling and E. Shapiro, The Art of Prolog, IEEE Expert, vol.2, issue.2, 1986.
DOI : 10.1109/MEX.1987.4307074

P. Wadler, Monads for functional programming, Advanced Functional Programming, pp.24-52, 1995.

H. Kamp and U. Reyle, From discourse to logic: Introduction to model theoretic semantics of natural language, formal logic and discourse representation theory, 1993.

R. Muskens, Combining Montague semantics and discourse representation, Linguistics and Philosophy, vol.12, issue.2, pp.143-186, 1996.
DOI : 10.1007/BF00635836

A. N. Ngomo, L. Bühmann, C. Unger, J. Lehmann, and D. Gerber, Sorry, i don't speak SPARQL, Proceedings of the 22nd international conference on World Wide Web, WWW '13, pp.977-988, 2013.
DOI : 10.1145/2488388.2488473

C. Bizer, J. Lehmann, G. Kobilarov, S. Auer, C. Becker et al., DBpedia - A crystallization point for the Web of Data, Web Semantics: Science, Services and Agents on the World Wide Web, vol.7, issue.3, pp.154-165, 2009.
DOI : 10.1016/j.websem.2009.07.002

A. Swartz, Musicbrainz: A semantic web service, Intelligent Systems, IEEE, vol.17, issue.1, pp.76-77, 2002.

S. He, S. Liu, Y. Chen, G. Zhou, K. Liu et al., CASIA@QALD-3: A question answering system over linked data, Work. Multilingual Question Answering over Linked Data (QALD-3), 2013. URL http

C. Giannone, V. Bellomaria, and R. Basili, A HMM-based approach to question answering against linked data, Work. Multilingual Question Answering over Linked Data (QALD-3), 2013. URL http

C. Dima, Intui2: A prototype system for question answering over linked data, Work. Multilingual Question Answering over Linked Data (QALD-3), 2013. URL http

C. Pradel, G. Peyet, O. Haemmerlé, and N. Hernandez, SWIP at QALD-3: Results, criticisms and lesson learned, Work. Multilingual Question Answering over Linked Data (QALD-3), 2013. URL http
URL : https://hal.archives-ouvertes.fr/hal-01193095

F. Amarger, O. Haemmerlé, N. Hernandez, and C. , Taking SPARQL 1.1 Extensions into Account in the SWIP System, Int. Conf. Conceptual Structures, pp.75-89, 2013.
DOI : 10.1007/978-3-642-35786-2_7
URL : https://hal.archives-ouvertes.fr/hal-01193096

E. Cabrio, J. Cojan, A. P. Aprosio, B. Magnini, A. Lavelli et al., QAKiS: an open domain QA system based on relational patterns, Int. Semantic Web Conf. (Posters & Demos) of CEUR Workshop Proceedings, 2012.
URL : https://hal.archives-ouvertes.fr/hal-01171115

J. Guyonvarch, S. Ferre, and M. Ducassé, Scalable Query-based Faceted Search on top of SPARQL Endpoints for Guided and Expressive Semantic Search, 2009.
URL : https://hal.archives-ouvertes.fr/dumas-00854852

A. Bernstein and E. Kaufmann, GINO ??? A Guided Input Natural Language Ontology Editor, Int. Semantic Web Conf, pp.144-157, 2006.
DOI : 10.1007/11926078_11

S. Walter, C. Unger, and P. Cimiano, A Corpus-Based Approach for the Induction of Ontology Lexica, Int. Conf. Applications of Natural Languages to Information Systems (NLDB), pp.102-113, 2013.
DOI : 10.1007/978-3-642-38824-8_9

J. Mccrae, D. Spohr, and P. Cimiano, Linking Lexical Resources and Ontologies on the Semantic Web with Lemon, Extended Semantic Web Conference (ESWC), pp.245-259, 2011.
DOI : 10.1038/nbt1346