S. Abiteboul, R. Hull, and V. Vianu, Foundations of Databases, 1995.

C. Aksoy, A. Dimitriou, and D. Theodoratos, Reasoning with patterns to effectively answer XML keyword queries, The VLDB Journal, vol.36, issue.1, 2015.
DOI : 10.1007/s00778-015-0384-3

R. Bonaque, B. Cautis, F. Goasdoué, and I. Manolescu, Social, structured and semantic search, extended version, 2015.

P. Buneman, E. V. Kostylev, and S. Vansummeren, Annotations are relative, Proceedings of the 16th International Conference on Database Theory, ICDT '13, 2013.
DOI : 10.1145/2448496.2448518

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

D. Carmel, N. Zwerdling, I. Guy, S. Ofek-koifman, N. Har-'el et al., Personalized social search based on the user's social network, Proceeding of the 18th ACM conference on Information and knowledge management, CIKM '09, 2009.
DOI : 10.1145/1645953.1646109

L. J. Chen and Y. Papakonstantinou, Supporting top-K keyword search in XML databases, 2010 IEEE 26th International Conference on Data Engineering (ICDE 2010), 2010.
DOI : 10.1109/ICDE.2010.5447818

M. Curtiss, I. Becker, T. Bosman, S. Doroshenko, L. Grijincu et al., Unicorn, Proceedings of the VLDB Endowment, vol.6, issue.11, 2013.
DOI : 10.14778/2536222.2536239

R. Fagin, A. Lotem, and M. Naor, Optimal aggregation algorithms for middleware, Proceedings of the twentieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems , PODS '01, 2003.
DOI : 10.1145/375551.375567

URL : http://doi.org/10.1016/s0022-0000(03)00026-6

F. Goasdoué, K. Karanasos, Y. Katsis, J. Leblay, I. Manolescu et al., Growing triples on trees: an XML-RDF hybrid model for annotated documents, The VLDB Journal, vol.39, issue.5, 2013.
DOI : 10.1007/s00778-013-0321-2

F. Goasdoué, I. Manolescu, and A. Roati¸sroati¸s, Efficient query answering against dynamic RDF databases, Proceedings of the 16th International Conference on Extending Database Technology, EDBT '13, 2013.
DOI : 10.1145/2452376.2452412

L. Guo, F. Shao, C. Botev, and J. Shanmugasundaram, XRANK, Proceedings of the 2003 ACM SIGMOD international conference on on Management of data , SIGMOD '03, 2003.
DOI : 10.1145/872757.872762

V. Hristidis, L. Gravano, and Y. Papakonstantinou, Efficient IR-Style Keyword Search over Relational Databases, VLDB, 2003.
DOI : 10.1016/B978-012722442-8/50080-X

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

V. Hristidis, H. Hwang, and Y. Papakonstantinou, Authority-based keyword search in databases, ACM Transactions on Database Systems, vol.33, issue.1, 2008.
DOI : 10.1145/1331904.1331905

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

G. Jeh and J. Widom, SimRank, Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining , KDD '02, 2002.
DOI : 10.1145/775047.775126

W. Le, F. Li, A. Kementsietsidis, and S. Duan, Scalable Keyword Search on Large RDF Data, IEEE Transactions on Knowledge and Data Engineering, vol.26, issue.11, p.2014
DOI : 10.1109/TKDE.2014.2302294

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

Y. Li, Z. Bao, G. Li, and K. Tan, Real time personalized search on social networks, 2015 IEEE 31st International Conference on Data Engineering, 2015.
DOI : 10.1109/ICDE.2015.7113321

URL : http://ecite.utas.edu.au/108824/2/108824.pdf

D. Liben-nowell and J. Kleinberg, The link-prediction problem for social networks, 2007.

S. Maniu and B. Cautis, Network-aware search in social tagging applications, Proceedings of the 22nd ACM international conference on Conference on information & knowledge management, CIKM '13, 2013.
DOI : 10.1145/2505515.2505760

URL : https://hal.archives-ouvertes.fr/hal-00927308

P. E. O-'neil, E. J. O-'neil, S. Pal, I. Cseri, G. Schaller et al., Ordpaths: Insert-friendly XML node labels, SIGMOD, 2004.

A. Ritter, S. Clark, O. Mausam, and . Etzioni, Named entity recognition in tweets: An experimental study, EMNLP, 2011.

R. Schenkel, T. Crecelius, M. Kacimi, S. Michel, T. Neumann et al., Efficient top-k querying over social-tagging networks, Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, SIGIR '08, 2008.
DOI : 10.1145/1390334.1390424

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

I. Tatarinov, S. D. Viglas, K. Beyer, J. Shanmugasundaram, E. Shekita et al., Storing and querying ordered XML using a relational database system, Proceedings of the 2002 ACM SIGMOD international conference on Management of data , SIGMOD '02, 2002.
DOI : 10.1145/564691.564715

M. Theobald, H. Bast, D. Majumdar, R. Schenkel, and G. Weikum, TopX: efficient and versatile top-k query processing for semistructured data, The VLDB Journal, 2008.
DOI : 10.1007/s00778-007-0072-z

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

M. Theobald, R. Schenkel, and G. Weikum, Efficient and self-tuning incremental query expansion for top-k query processing, Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval, SIGIR '05, 2005.
DOI : 10.1145/1076034.1076077

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

T. Tran, H. Wang, S. Rudolph, and P. Cimiano, Top-k Exploration of Query Candidates for Efficient Keyword Search on Graph-Shaped (RDF) Data, 2009 IEEE 25th International Conference on Data Engineering, 2009.
DOI : 10.1109/ICDE.2009.119

J. Urbani, S. Kotoulas, J. Maassen, F. Van-harmelen, and H. E. Bal, WebPIE: A Web-scale Parallel Inference Engine using MapReduce, Web Semantics: Science, Services and Agents on the World Wide Web, vol.10, 2012.
DOI : 10.1016/j.websem.2011.05.004

S. A. Yahia, M. Benedikt, L. V. Lakshmanan, and J. Stoyanovich, Efficient network aware search in collaborative tagging sites, Proceedings of the VLDB Endowment, vol.1, issue.1, 2008.
DOI : 10.14778/1453856.1453934