Stop the war!
Остановите войну!
for scientists:
default search action
BibTeX records: Andrea Perego
@article{DBLP:journals/corr/abs-2303-08883, author = {Riccardo Albertoni and David Browning and Simon J. D. Cox and Alejandra N. Gonz{\'{a}}lez{-}Beltr{\'{a}}n and Andrea Perego and Peter Winstanley}, title = {The {W3C} Data Catalog Vocabulary, Version 2: Rationale, Design Principles, and Uptake}, journal = {CoRR}, volume = {abs/2303.08883}, year = {2023}, url = {https://doi.org/10.48550/arXiv.2303.08883}, doi = {10.48550/ARXIV.2303.08883}, eprinttype = {arXiv}, eprint = {2303.08883}, timestamp = {Fri, 08 Sep 2023 01:00:00 +0200}, biburl = {https://dblp.org/rec/journals/corr/abs-2303-08883.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/gandc/ReznikRSLPCK22, author = {Tom{\'{a}}s Rezn{\'{\i}}k and Lieven Raes and Andrew Stott and Bart De Lathouwer and Andrea Perego and Karel Charv{\'{a}}t and Step{\'{a}}n Kafka}, title = {Improving the documentation and findability of data services and repositories: {A} review of (meta)data management approaches}, journal = {Comput. Geosci.}, volume = {169}, pages = {105194}, year = {2022}, url = {https://doi.org/10.1016/j.cageo.2022.105194}, doi = {10.1016/J.CAGEO.2022.105194}, timestamp = {Sat, 30 Sep 2023 01:00:00 +0200}, biburl = {https://dblp.org/rec/journals/gandc/ReznikRSLPCK22.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/wf-iot/ConzonPVMMSPIPAS22, author = {Davide Conzon and Claudio Pastrone and Panagiotis Vlacheas and Susana Martin{-}Toral and Francisco Morentin and Talib Sankal and George Pavlidis and Emilia Ingemarsdotter and Andrea Perego and Javier Arenas and Robert H. Schmitt}, title = {{ECOFACT} Platform Architecture Supporting Manufacturing Energy Management and Holistic Sustainability}, booktitle = {8th {IEEE} World Forum on Internet of Things, WF-IoT 2022, Yokohama, Japan, October 26 - Nov. 11, 2022}, pages = {1--6}, publisher = {{IEEE}}, year = {2022}, url = {https://doi.org/10.1109/WF-IoT54382.2022.10152056}, doi = {10.1109/WF-IOT54382.2022.10152056}, timestamp = {Wed, 28 Jun 2023 15:42:23 +0200}, biburl = {https://dblp.org/rec/conf/wf-iot/ConzonPVMMSPIPAS22.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/jbix/NicholsonP20, author = {Nicholas Nicholson and Andrea Perego}, title = {Interoperability of population-based patient registries}, journal = {J. Biomed. Informatics {X}}, volume = {6-7}, pages = {100074}, year = {2020}, url = {https://doi.org/10.1016/j.yjbinx.2020.100074}, doi = {10.1016/J.YJBINX.2020.100074}, timestamp = {Fri, 25 Dec 2020 00:00:00 +0100}, biburl = {https://dblp.org/rec/journals/jbix/NicholsonP20.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/semweb/BrinkBTAACFCHHJ19, author = {Linda van den Brink and Payam M. Barnaghi and Jeremy Tandy and Ghislain Atemezing and Rob Atkinson and Byron Cochrane and Yasmin Fathy and Ra{\'{u}}l Garc{\'{\i}}a{-}Castro and Armin Haller and Andreas Harth and Krzysztof Janowicz and Sefki Kolozali and Bart van Leeuwen and Maxime Lefran{\c{c}}ois and Joshua Lieberman and Andrea Perego and Danh Le Phuoc and Bill Roberts and Kerry Taylor and Rapha{\"{e}}l Troncy}, title = {Best practices for publishing, retrieving, and using spatial data on the web}, journal = {Semantic Web}, volume = {10}, number = {1}, pages = {95--114}, year = {2019}, url = {https://doi.org/10.3233/SW-180305}, doi = {10.3233/SW-180305}, timestamp = {Sat, 30 Sep 2023 01:00:00 +0200}, biburl = {https://dblp.org/rec/journals/semweb/BrinkBTAACFCHHJ19.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/iiwas/Friis-Christensen17, author = {Anders Friis{-}Christensen and Andrea Perego and Chrisa Tsinaraki and Lorenzino Vaccari}, editor = {Maria Indrawan{-}Santiago and Matthias Steinbauer and Ivan Luiz Salvadori and Ismail Khalil and Gabriele Anderst{-}Kotsis}, title = {The {JRC} multidisciplinary research data infrastructure}, booktitle = {Proceedings of the 19th International Conference on Information Integration and Web-based Applications {\&} Services, iiWAS 2017, Salzburg, Austria, December 4-6, 2017}, pages = {338--342}, publisher = {{ACM}}, year = {2017}, url = {https://doi.org/10.1145/3151759.3151810}, doi = {10.1145/3151759.3151810}, timestamp = {Tue, 06 Nov 2018 16:58:38 +0100}, biburl = {https://dblp.org/rec/conf/iiwas/Friis-Christensen17.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/ijsdir/OstlaenderBHPFC15, author = {Nicole Ostlaender and Tom Bailly{-}Salins and Matthew Hardy and Andrea Perego and Anders Friis{-}Christensen and Silvia dalla Costa}, title = {Describing models in context - {A} step towards enhanced transparency of scientific processes underpinning policy making}, journal = {Int. J. Spatial Data Infrastructures Res.}, volume = {10}, year = {2015}, url = {https://ijsdir.sadl.kuleuven.be/index.php/ijsdir/article/view/383}, timestamp = {Mon, 22 Mar 2021 00:00:00 +0100}, biburl = {https://dblp.org/rec/journals/ijsdir/OstlaenderBHPFC15.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/tkde/Parra-ArnauPFFR14, author = {Javier Parra{-}Arnau and Andrea Perego and Elena Ferrari and Jordi Forn{\'{e}} and David Rebollo{-}Monedero}, title = {Privacy-Preserving Enhanced Collaborative Tagging}, journal = {{IEEE} Trans. Knowl. Data Eng.}, volume = {26}, number = {1}, pages = {180--193}, year = {2014}, url = {https://doi.org/10.1109/TKDE.2012.248}, doi = {10.1109/TKDE.2012.248}, timestamp = {Tue, 29 Dec 2020 00:00:00 +0100}, biburl = {https://dblp.org/rec/journals/tkde/Parra-ArnauPFFR14.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/dke/CarminatiFP12, author = {Barbara Carminati and Elena Ferrari and Andrea Perego}, title = {A multi-layer framework for personalized social tag-based applications}, journal = {Data Knowl. Eng.}, volume = {79-80}, pages = {62--86}, year = {2012}, url = {https://doi.org/10.1016/j.datak.2012.06.002}, doi = {10.1016/J.DATAK.2012.06.002}, timestamp = {Fri, 30 Nov 2018 00:00:00 +0100}, biburl = {https://dblp.org/rec/journals/dke/CarminatiFP12.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/expert/PeregoFVLSKS12, author = {Andrea Perego and Cristiano Fugazza and Lorenzino Vaccari and Michael Lutz and Paul C. Smits and Ioannis Kanellopoulos and Sven Schade}, title = {Harmonization and Interoperability of {EU} Environmental Information and Services}, journal = {{IEEE} Intell. Syst.}, volume = {27}, number = {3}, pages = {33--39}, year = {2012}, url = {https://doi.org/10.1109/MIS.2012.22}, doi = {10.1109/MIS.2012.22}, timestamp = {Mon, 05 Feb 2024 00:00:00 +0100}, biburl = {https://dblp.org/rec/journals/expert/PeregoFVLSKS12.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/www/BertinoFP10, author = {Elisa Bertino and Elena Ferrari and Andrea Perego}, title = {A General Framework for Web Content Filtering}, journal = {World Wide Web}, volume = {13}, number = {3}, pages = {215--249}, year = {2010}, url = {https://doi.org/10.1007/s11280-009-0073-5}, doi = {10.1007/S11280-009-0073-5}, timestamp = {Fri, 30 Nov 2018 00:00:00 +0100}, biburl = {https://dblp.org/rec/journals/www/BertinoFP10.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/tissec/CarminatiFP09, author = {Barbara Carminati and Elena Ferrari and Andrea Perego}, title = {Enforcing access control in Web-based social networks}, journal = {{ACM} Trans. Inf. Syst. Secur.}, volume = {13}, number = {1}, pages = {6:1--6:38}, year = {2009}, url = {https://doi.org/10.1145/1609956.1609962}, doi = {10.1145/1609956.1609962}, timestamp = {Tue, 06 Nov 2018 00:00:00 +0100}, biburl = {https://dblp.org/rec/journals/tissec/CarminatiFP09.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/colcom/PeregoCF09, author = {Andrea Perego and Barbara Carminati and Elena Ferrari}, editor = {James B. D. Joshi and Tao Zhang}, title = {The Quality Social Network: {A} collaborative environment for personalizing Web access}, booktitle = {The 5th International Conference on Collaborative Computing: Networking, Applications and Worksharing, CollaborateCom 2009, Washington DC, USA, November 11-14, 2009}, pages = {1--8}, publisher = {{ICST} / {IEEE}}, year = {2009}, url = {https://doi.org/10.4108/ICST.COLLABORATECOM2009.8368}, doi = {10.4108/ICST.COLLABORATECOM2009.8368}, timestamp = {Sun, 08 Aug 2021 01:00:00 +0200}, biburl = {https://dblp.org/rec/conf/colcom/PeregoCF09.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/esws/ArcherFKKKP09, author = {Phil Archer and Elena Ferrari and Vangelis Karkaletsis and Stasinos Konstantopoulos and Antonis Koukourikos and Andrea Perego}, editor = {Michael Hausenblas and Philipp K{\"{a}}rger and Daniel Olmedilla and Alexandre Passant and Axel Polleres}, title = {{QUATRO} Plus: Quality You Can Trust?}, booktitle = {Proceedings of the {ESWC2009} Workshop on Trust and Privacy on the Social and Semantic Web {(SPOT2009)} Heraklion, Greece, June 1, 2009}, series = {{CEUR} Workshop Proceedings}, volume = {447}, publisher = {CEUR-WS.org}, year = {2009}, url = {https://ceur-ws.org/Vol-447/paper1.pdf}, timestamp = {Fri, 10 Mar 2023 16:23:13 +0100}, biburl = {https://dblp.org/rec/conf/esws/ArcherFKKKP09.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/ijisp/CarminatiFP08, author = {Barbara Carminati and Elena Ferrari and Andrea Perego}, title = {A Decentralized Security Framework for Web-Based Social Networks}, journal = {Int. J. Inf. Secur. Priv.}, volume = {2}, number = {4}, pages = {22--53}, year = {2008}, url = {https://doi.org/10.4018/jisp.2008100102}, doi = {10.4018/JISP.2008100102}, timestamp = {Thu, 13 Aug 2020 01:00:00 +0200}, biburl = {https://dblp.org/rec/journals/ijisp/CarminatiFP08.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/colcom/CarminatiFP08, author = {Barbara Carminati and Elena Ferrari and Andrea Perego}, editor = {Elisa Bertino and James B. D. Joshi}, title = {Combining Social Networks and Semantic Web Technologies for Personalizing Web Access}, booktitle = {Collaborative Computing: Networking, Applications and Worksharing, 4th International Conference, CollaborateCom 2008, Orlando, FL, USA, November 13-16, 2008, Revised Selected Papers}, series = {Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering}, volume = {10}, pages = {126--144}, publisher = {Springer / {ICST}}, year = {2008}, url = {https://doi.org/10.1007/978-3-642-03354-4\_11}, doi = {10.1007/978-3-642-03354-4\_11}, timestamp = {Fri, 02 Nov 2018 00:00:00 +0100}, biburl = {https://dblp.org/rec/conf/colcom/CarminatiFP08.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/delos/EidenbergerBCDLMPST07, author = {Horst Eidenberger and Susanne Boll and Stavros Christodoulakis and Doris Divotkey and Klaus Leopold and Alessandro Martin and Andrea Perego and Ansgar Scherp and Chrisa Tsinaraki}, editor = {Costantino Thanos and Francesca Borri and Leonardo Candela}, title = {Integrated Authoring, Annotation, Retrieval, Adaptation, Personalization, and Delivery for Multimedia}, booktitle = {Digital Libraries: Research and Development, First International {DELOS} Conference, Pisa, Italy, February 13-14, 2007, Revised Selected Papers}, series = {Lecture Notes in Computer Science}, volume = {4877}, pages = {87--103}, publisher = {Springer}, year = {2007}, url = {https://doi.org/10.1007/978-3-540-77088-6\_9}, doi = {10.1007/978-3-540-77088-6\_9}, timestamp = {Fri, 27 Mar 2020 08:46:04 +0100}, biburl = {https://dblp.org/rec/conf/delos/EidenbergerBCDLMPST07.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/icde/CarminatiFP07, author = {Barbara Carminati and Elena Ferrari and Andrea Perego}, title = {Private Relationships in Social Networks}, booktitle = {Proceedings of the 23rd International Conference on Data Engineering Workshops, {ICDE} 2007, 15-20 April 2007, Istanbul, Turkey}, pages = {163--171}, publisher = {{IEEE} Computer Society}, year = {2007}, url = {https://doi.org/10.1109/ICDEW.2007.4400987}, doi = {10.1109/ICDEW.2007.4400987}, timestamp = {Fri, 24 Mar 2023 00:00:00 +0100}, biburl = {https://dblp.org/rec/conf/icde/CarminatiFP07.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/ircdl/MarcanteMMPV07, author = {Andrea Marcante and Alessandro Martin and Piero Mussio and Andrea Perego and Stefano Valtolina}, editor = {Maristella Agosti and Floriana Esposito and Costantino Thanos}, title = {Tools for Collaborative Annotation: a comparison among three annotation styles}, booktitle = {Post-proceedings of the Third Italian Research Conference on Digital Library Systems, {IRCDL} 2007, Padova, Italy, 29-30 January 2007}, pages = {1--6}, publisher = {{DELOS:} a Network of Excellence on Digital Libraries}, year = {2007}, timestamp = {Thu, 21 Jun 2018 07:40:08 +0200}, biburl = {https://dblp.org/rec/conf/ircdl/MarcanteMMPV07.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/jdim/TsinarakiPP06, author = {Chrisa Tsinaraki and Andrea Perego and Panagiotis Polydoros}, title = {Semantic, Constraint {\&} Preference Based Multimedia Presentation Authoring}, journal = {J. Digit. Inf. Manag.}, volume = {4}, number = {4}, pages = {207--213}, year = {2006}, url = {http://www.dirf.org/jdim/abstractv4i4.htm\#v4n4a1}, timestamp = {Sat, 25 Apr 2020 01:00:00 +0200}, biburl = {https://dblp.org/rec/journals/jdim/TsinarakiPP06.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/mtw/KarkaletsisPASNR06, author = {Vangelis Karkaletsis and Andrea Perego and Phil Archer and Kostas Stamatakis and Pantelis Nasikas and David Rose}, editor = {Tim Finin and Lalana Kagal and Daniel Olmedilla}, title = {Quality Labeling of Web Content: The Quatro approach}, booktitle = {Proceedings of the WWW'06 Workshop on Models of Trust for the Web (MTW'06), Edinburgh, Scotland, UK, May 22, 2006}, series = {{CEUR} Workshop Proceedings}, volume = {190}, publisher = {CEUR-WS.org}, year = {2006}, url = {https://ceur-ws.org/Vol-190/paper09.pdf}, timestamp = {Fri, 10 Mar 2023 16:22:58 +0100}, biburl = {https://dblp.org/rec/conf/mtw/KarkaletsisPASNR06.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/otm/CarminatiFP06, author = {Barbara Carminati and Elena Ferrari and Andrea Perego}, editor = {Robert Meersman and Zahir Tari and Pilar Herrero}, title = {Rule-Based Access Control for Social Networks}, booktitle = {On the Move to Meaningful Internet Systems 2006: {OTM} 2006 Workshops, {OTM} Confederated International Workshops and Posters, AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET, OnToContent, ORM, PerSys, {OTM} Academy Doctoral Consortium, RDDS, SWWS, and SeBGIS 2006, Montpellier, France, October 29 - November 3, 2006. Proceedings, Part {II}}, series = {Lecture Notes in Computer Science}, volume = {4278}, pages = {1734--1744}, publisher = {Springer}, year = {2006}, url = {https://doi.org/10.1007/11915072\_80}, doi = {10.1007/11915072\_80}, timestamp = {Thu, 14 Oct 2021 10:28:24 +0200}, biburl = {https://dblp.org/rec/conf/otm/CarminatiFP06.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@phdthesis{DBLP:phd/it/Perego05, author = {Andrea Perego}, title = {A general framework for web content filtering}, school = {University of Milan, Italy}, year = {2005}, url = {https://opac.bncf.firenze.sbn.it/bncf-prod/resource?uri=BNI0026395}, timestamp = {Sat, 06 May 2023 01:00:00 +0200}, biburl = {https://dblp.org/rec/phd/it/Perego05.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/dexaw/BertinoFPZ05, author = {Elisa Bertino and Elena Ferrari and Andrea Perego and Gian Piero Zarri}, title = {A Multi-Strategy Approach to Rating and Filtering Online Resources}, booktitle = {16th International Workshop on Database and Expert Systems Applications {(DEXA} 2005), 22-26 August 2005, Copenhagen, Denmark}, pages = {519--523}, publisher = {{IEEE} Computer Society}, year = {2005}, url = {https://doi.org/10.1109/DEXA.2005.21}, doi = {10.1109/DEXA.2005.21}, timestamp = {Fri, 24 Mar 2023 00:00:00 +0100}, biburl = {https://dblp.org/rec/conf/dexaw/BertinoFPZ05.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/icmcs/BertinoFPS05, author = {Elisa Bertino and Elena Ferrari and Andrea Perego and Diego Santi}, title = {A Constraint-Based Approach for the Authoring of Multi-Topic Multimedia Presentations}, booktitle = {Proceedings of the 2005 {IEEE} International Conference on Multimedia and Expo, {ICME} 2005, July 6-9, 2005, Amsterdam, The Netherlands}, pages = {578--581}, publisher = {{IEEE} Computer Society}, year = {2005}, url = {https://doi.org/10.1109/ICME.2005.1521489}, doi = {10.1109/ICME.2005.1521489}, timestamp = {Fri, 24 Mar 2023 00:00:00 +0100}, biburl = {https://dblp.org/rec/conf/icmcs/BertinoFPS05.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/ieaaie/BertinoFPZ05, author = {Elisa Bertino and Elena Ferrari and Andrea Perego and Gian Piero Zarri}, editor = {Moonis Ali and Floriana Esposito}, title = {An Integrated Approach to Rating and Filtering Web Content}, booktitle = {Innovations in Applied Artificial Intelligence, 18th International Conference on Industrial and Engineering Applications of Artificial Intelligence and Expert Systems, {IEA/AIE} 2005, Bari, Italy, June 22-24, 2005, Proceedings}, series = {Lecture Notes in Computer Science}, volume = {3533}, pages = {749--751}, publisher = {Springer}, year = {2005}, url = {https://doi.org/10.1007/11504894\_104}, doi = {10.1007/11504894\_104}, timestamp = {Tue, 14 May 2019 10:00:37 +0200}, biburl = {https://dblp.org/rec/conf/ieaaie/BertinoFPZ05.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@article{DBLP:journals/ijisec/BertinoFP03, author = {Elisa Bertino and Elena Ferrari and Andrea Perego}, title = {Content-based filtering of Web documents: the MaX system and the {EUFORBIA} project}, journal = {Int. J. Inf. Sec.}, volume = {2}, number = {1}, pages = {45--58}, year = {2003}, url = {https://doi.org/10.1007/s10207-003-0024-6}, doi = {10.1007/S10207-003-0024-6}, timestamp = {Tue, 06 Jun 2017 01:00:00 +0200}, biburl = {https://dblp.org/rec/journals/ijisec/BertinoFP03.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/compsac/BertinoFP02, author = {Elisa Bertino and Elena Ferrari and Andrea Perego}, title = {Ma {X} : An Access Control System for Digital Libraries and the Web}, booktitle = {26th International Computer Software and Applications Conference {(COMPSAC} 2002), Prolonging Software Life: Development and Redevelopment, 26-29 August 2002, Oxford, England, Proceedings}, pages = {945--950}, publisher = {{IEEE} Computer Society}, year = {2002}, url = {https://doi.org/10.1109/CMPSAC.2002.1045127}, doi = {10.1109/CMPSAC.2002.1045127}, timestamp = {Fri, 24 Mar 2023 00:00:00 +0100}, biburl = {https://dblp.org/rec/conf/compsac/BertinoFP02.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
@inproceedings{DBLP:conf/ercimdl/BertinoFP02, author = {Elisa Bertino and Elena Ferrari and Andrea Perego}, editor = {Maristella Agosti and Costantino Thanos}, title = {An Access Control System for Digital Libraries and the Web: The MaX Prototype Demonstration}, booktitle = {Research and Advanced Technology for Digital Libraries, 6th European Conference, {ECDL} 2002, Rome, Italy, September 16-18, 2002, Proceedings}, series = {Lecture Notes in Computer Science}, volume = {2458}, pages = {656--657}, publisher = {Springer}, year = {2002}, url = {https://doi.org/10.1007/3-540-45747-X\_50}, doi = {10.1007/3-540-45747-X\_50}, timestamp = {Sun, 02 Jun 2019 21:11:16 +0200}, biburl = {https://dblp.org/rec/conf/ercimdl/BertinoFP02.bib}, bibsource = {dblp computer science bibliography, https://dblp.org} }
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.