PC member of the Web Conference 2020 (WebConf 2020)
PC member of the 42nd European Conference on Information Retrieval (ECIR 2020)
PC member of the 34th AAAI Conference on Artificial Intelligence (AAAI 2020)
PC member of the 58th Annual Meeting of the Association for Computational Linguistics (ACL 2020)
PC member of the 13th ACM International Conference on Web Search and Data Mining (WSDM 2020)
PC member of the 28th ACM International Conference on Information and Knowledge Management (CIKM 2020)
PC member of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2020)
PC member of the Digital Humanities Conference 2020 (DH 2020)
PC member of the 12th International Conference on Language Resources and Evaluation (LREC 2020)
PC member of the 4th Joint SIGHUM Workshop on Computational Linguistics for Cultural Heritage, Social Sciences, Humanities and Literature held in conjunction with COLING 2020 (LATECH 2020)
Senior PC member of the ACM/IEEE Joint Conference on Digital Libraries (JCDL 2020)
PC member of the 2020 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2020)
PC member of the 12th International Conference on Social Informatics (SocInfo 2020)
PC member of the 26th International Symposium on Methodologies for Intelligent Systems (ISMIS 2020)
Editorial Board Member of the Special Issue on Creative Language Processing under the journal of Information Processing & Management (CLP-IPM)
PC member of the 33rd AAAI Conference on Artificial Intelligence (AAAI 2019)
PC member of the 12th ACM International Conference on Web Search and Data Mining (WSDM 2019)
PC member of the 57th Annual Meeting of the Association for Computational Linguistics (ACL 2019)
PC member of short paper track at the 41st European Conference on Information Retrieval (ECIR 2019)
PC member of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics - Human Language Technologies (NAACL-HLT 2019)
Senior PC member of the ACM/IEEE Joint Conference on Digital Libraries (JCDL 2019)
PC member of the 21st IEEE International Symposium on Multimedia (IEEE ISM 2019)
PC member of the 2nd International Workshop on Artificial Intelligence for 3D Big Spatial Data Processing (AI3D 2019)
PC member of the Digital Humanities Conference 2019 (DH 2019)
PC member of ICDAR 2019 International Workshop on Human-Document Interaction (HDI 2019)
Editorial Committee Member of the Special Issue of the TAL journal: NLP and Digital Humanities
PC member of 6th IEEE International Conference on Big Data and Smart Computing (IEEE BigComp 2019)
PC member of the 13th IEEE International Conference on Semantic Computing (ICSC 2019)
PC member of the 25th International Conference on MultiMedia Modeling (MMM 2019)
PC member of the Conference on Empirical Methods in Natural Language Processing and the International Joint Conference on Natural Language Processing 2019 (EMNLP-IJCNLP 2019)
PC member of the 5th Annual International Conference on Computational Social Science (IC2S2 2019)
PC member of the 11th International Conference on Social Informatics (SocInfo 2019)
PC member of Temporal Web Analytics Workshop (Temp Web 2019)
PC member of the Demo Session track of IEEE International Conference on Data Mining (ICDM 2018)
PC member of the 2018 Conference on Empirical Methods in Natural Language Processing (EMNLP 2018)
PC member of the 27th ACM International Conference on Information and Knowledge Management: short paper track (CIKM 2018)
PC member of the 14th Asia Information Retrieval Societies conference (AIRS 2018)
PC member of the Digital Humanities Conference (DH 2018)
PC member for Workshop Selection Committee of the ACM/IEEE Joint Conference on Digital Libraries (JCDL 2018)
Senior PC member of the ACM/IEEE Joint Conference on Digital Libraries (JCDL 2018)
PC member of the 19th Conference on Web Information Systems Engineering (WISE 2018)
PC member of the 19th International Conference on Asian Digital Libraries (ICADL 2018)
PC member of the 2nd European Symposium on Societal Challenges in Computational Social Science (Euro CSS Symposium 18)
PC member of the 20th IEEE International Symposium on Multimedia (ISM 2018)
PC member of the 22nd International Conference on Theory and Practice of Digital Libraries (TPDL 2018)
PC member of 12th International Symposium Advances in Artificial Intelligence (FedCSIS 2018)
PC member of the 25th International Symposium on Temporal Representation and Reasoning (TIME 2018)
PC member of the 4th Annual International Conference on Computational Social Science (IC2S2 2018)
PC member of the 14th International Conference on Semantics, Knowledge and Grids (SKG 2018)
PC member of the 11th IEEE International Conference on Semantic Computing (ICSC 2018)
PC member of the 10th International Conference on Social Informatics (SocInfo 2018)
PC member of the IEEE BigData Congress 2018 (BigData 2018)
PC member of the 24th International Conference on MultiMedia Modeling (MMM 2018)
PC member of the 2nd Joint SIGHUM Workshop on Computational Linguistics for Cultural Heritage, Social Sciences, Humanities and Literature held in conjunction with COLING 2018 (LATECH 2018)
PC member of the 11th International Conference on Web Search and Data Mining (WSDM 2018)
PC member for 2018 IEEE International Conference on Big Data and Smart Computing (IEEE BigComp 2018)
PC member of the 8th International Temporal Web Analytics Workshop at WWW2018 (TempWeb 2018)
PC member for European Symposium Series on Societal Challenges in Computational Social Science (ESCSS 2017)
PC member of the 10th International Conference on Web Search and Data Mining (WSDM 2017)
PC member of the 40th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval: short paper track (SIGIR 2017)
PC member of the 26th ACM International Conference on Information and Knowledge Management: short and demo paper track (CIKM 2017)
PC member of the 11th IEEE International Conference on Semantic Computing (ICSC 2017)
PC member of the 1st Joint SIGHUM Workshop on Computational Linguistics for Cultural Heritage, Social Sciences, Humanities and Literature (LATECH 2017)
PC member of the 23rd International Conference on MultiMedia Modeling (MMM 2017)
PC member of the 9th International Conference on Social Informatics (SocInfo 2017)
PC member of the 18th Conference on Web Information Systems Engineering (WISE 2017)
PC member of the 18th International Conference on Asian Digital Libraries (ICADL 2017)
PC member of the Digital Humanities Conference (DH 2017)
PC member of the 1st International Workshop on Temporal Dynamics in Digital Libraries at TPDL 2017
PC member of the 7th International Temporal Web Analytics Workshop at WWW2017 (TempWeb 2017)
PC member of the 21st International Conference on Theory and Practice of Digital Libraries (TPDL 2017)
PC member of Doctoral Consortium of the 9th Asian Conference on Intelligent Information and Database Systems (AIRS 2017)
PC member of the 39th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2016)
PC member of the 25th International Joint Conference on Artificial Intelligence (IJCAI 2016)
PC member of the doctoral consortium at the 25th International Joint Conference on Artificial Intelligence (IJCAI 2016)
PC member of the 25th ACM International Conference on World Wide Web (WWW 2016)
PC member of the ACM/IEEE Joint Conference on Digital Libraries (JCDL 2016)
PC member of the 18th International Conference on Asian Digital Libraries (ICADL 2016)
PC member of the 17th Conference on Web Information Systems Engineering (WISE 2016)
PC member of the 20th International Database Engineering and Applications Symposium (IDEAS 2016)
PC member of the 8th International Conference on Social Informatics (SocInfo 2016)
PC member of the poster/demo track of the Asia Information Retrieval Societies Conference (AIRS 2016)
PC member of the 6th International Temporal Web Analytics Workshop at WWW2016 (TempWeb 2016)
PC member of the 9th International C* Conference on Computer Science & Software Engineering (C3S2E 2016)
Demonstration PC member of the 22nd Anniversary International Conference on MultiMedia Modeling (MMM 2016)
PC member of the 1st International Workshop on Data to Decision (D2D 2016)
PC member of the 10th Workshop on Language Technology for Cultural Heritage, Social Sciences, and Humanities held in conjunction with ACL 2016 (LATECH 2016)
PC member of the 24th ACM International Conference on Information and Knowledge Management (CIKM 2015)
PC member of the 38th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval: short papers track (SIGIR 2015)
PC member of the 8th International Conference on Web Search and Data Mining (WSDM 2015)
PC member of the 7th International Conference on Social Informatics (SocInfo 2015)
PC member of the ACM/IEEE Joint Conference on Digital Libraries (JCDL 2015)
PC member of the Asia Information Retrieval Societies Conference (AIRS 2015)
PC member of the 20th Database Systems for Advanced Applications Conference (DASFAA 2015)
PC member of the 19th International Conference on Theory and Practice of Digital Libraries (TPDL 2015)
PC member of the 17th International Conference on Asian Digital Libraries (ICADL 2015)
PC member of the 5th International Temporal Web Analytics Workshop at WWW2015 (TempWeb 2015)
Demonstration PC member of the 21st Anniversary International Conference on MultiMedia Modeling (MMM 2015)
PC member of the 17th Portuguese Conference on Artificial Intelligence (EPIA2015)
PC member of the 19th International Database Engineering and Applications Symposium (IDEAS 2015)
PC member of the 9th Workshop on Language Technology for Cultural Heritage, Social Sciences, and Humanities will be held in conjunction with ACL-IJCNLP 2015 (LATECH 2015)
PC member of the SIGIR 2015 Workshop on Temporal, Social and Spatially-aware Information Access (TAIA 2015)
PC member of the ACM International Conference on Information and Knowledge Management (CIKM 2014)
Guest editorial board member of special issue of Information Processing and Management Journal (IPM) on Time and Information Retrieval
PC member of the 28th AAAI Conference on Artificial Intelligence (AAAI 2014)
PC member of the 37th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval: short papers track (SIGIR 2014)
PC member of the Digital Libraries 2014 Conference [previous ACM/IEEE Joint Conference on Digital Libraries] (DL 2014)
PC member of PhD symposium at the 23rd International Conference on World Wide Web (WWW 2014)
PC member of the 19th Database Systems for Advanced Applications Conference (DASFAA 2014)
PC member of Workshops Committee of the 7th International Conference on Web Search and Data Mining (WSDM 2014)
PC member of the Doctoral Consortium at the 11th International Conference on Preservation of Digital Objects (iPRES 2014)
PC member of the 4th International Temporal Web Analytics Workshop at WWW2014 (TWAW 2014)
PC member of the 16th international Asia-Pacific Web Conference (APWeb 2014)
PC member of the 6th International Conference on Social Informatics (SocInfo 2014)
PC member of the 18th International Database Engineering and Applications Symposium (IDEAS 2014)
PC member of the 36th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval: short papers track (SIGIR 2013)
PC member of the 1st International Conference on Smart Computing and Artificial Intelligence (ICSCAI 2013)
PC member of the 9th Asia Information Retrieval Societies Conference (AIRS 2013)
PC member of the Doctoral Consortium at the 10th International Conference on Preservation of Digital Objects (iPRES 2013)
PC member of the 10th International Conference on Preservation of Digital Objects (iPRES 2013)
PC member of the 13th ACM/IEEE Joint Conference on Digital Libraries (JCDL 2013)
PC member of the 5th Asian Conference on Machine Learning (ACML 2013)
PC member of the 18th Database Systems for Advanced Applications Conference (DASFAA 2013)
PC member of the 24th International Conference on Database and Expert Systems Applications (DEXA 2013)
PC member of the 16th Portuguese Conference on Artificial Intelligence (EPIA2013)
PC member of the 3rd International Temporal Web Analytics Workshop at WWW2013 (TWAW 2013)
PC member of the 16th International Conference on Business Information Systems (BIS 2013)
PC member of the 15th international Asia-Pacific Web Conference (APWeb 2013)
PC member of the poster track at 35th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2012)
PC member of the ACM/IEEE Joint Conference on Digital Libraries (JCDL 2012)
PC member of the 17th Database Systems for Advanced Applications Conference (DASFAA 2012)
PC member of the 23rd International Conference on Database and Expert Systems Applications (DEXA 2012)
PC member of the 5th Workshop on Data Quality in Data Integration System (DQDI 2012) in conjunction with the 17th Database Systems for Advanced Applications Conference (DASFAA 2012)
PC member of the 2nd International Temporal Web Analytics Workshop at WWW2012 (TempWeb 2012)
PC member of The 2012 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012)
PC member of the 15th International Conference on Business Information Systems (BIS 2012)
PC member of the poster track at 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2011)
PC member of the 16th Database Systems for Advanced Applications Conference (DASFAA 2011)
PC member of the 13th International Conference on Information Integration and Web-based Applications & Services (iiWAS 2011)
PC member of the 1st International Temporal Web Analytics Workshop at WWW2011 (TWAW 2011)
PC member of the 4th Workshop on Data Quality in Data Integration System (DQDI 2011) in conjunction with the 16th Database Systems for Advanced Applications Conference (DASFAA 2011)
PC member of the 7th Asia Information Retrieval Societies Conference (AIRS 2011)
PC member of the 14th International Conference on Business Information Systems (BIS 2011)
PC member of the 1st Workshop on Social Network Analysis in Applications (SNAA 2011) in conjunction with the International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2011)
PC member of the 22nd International Conference on Database and Expert Systems Applications (DEXA 2011)
PC member of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2010)
PC member of the 23rd International Conference on Computational Linguistics (COLING 2010)
PC member of the 6th Asia Information Retrieval Societies Conference (AIRS 2010)
PC member of the 21st ACM Conference on Hypertext and Hypermedia (HT 2010)
PC member of the Doctoral Consortium at the Joint JCDL/ICADL International Digital Libraries Conference (Doctoral Consortium JCDL-ICADL 2010)
PC member of the International Conference on Data and Knowledge Engineering (ICDKE 2010)
PC member of the 2nd International Conference on Social Informatics (SocInfo 2010)
PC member of the 21st International Conference on Database and Expert Systems Applications (DEXA 2010)
PC member of the 10th International Web Archiving Workshop (IWAW 2010) with the 7th International Conference on Preservation of Digital Objects (iPres 2010)
PC member of the 3rd Workshop on Mashups, Enterprise Mashups and Lightweight Composition on the Web (MEM 2010) in conjunction with the 19th International World Wide Web Conference (WWW 2010)
PC member of the 3rd International Workshop on Managing Data Quality in Collaborative Information Systems (MCIS 2010) in conjunction with 15th International Conference on Database Systems for Advanced Applications (DASFAA 2010)
PC member of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2009)
PC member of Information Structure and Presentation Track at the 20th ACM Conference on Hypertext and Hypermedia (HT 2009)
PC member of the 20th International Conference on Database and Expert Systems Applications (DEXA 2009)
PC member of the demo track at the 14th International Conference on Database Systems for Advanced Applications (DASFAA 2009)
PC member of the 2nd, 3rd, 4th, 5th and 7th KES International Symposium on Agent and Multi-Agent Systems: Technologies and Applications (KES-AMSTA-08 KES-AMSTA-09 KES-AMSTA-10 KES-AMSTA-11 KES-AMSTA-13)
PC member of the 2009 and 2010 IEEE International Conference on e-Business Engineering (ICEBE 2009 ICEBE 2010)
PC member of the 9th International Web Archiving Workshop (IWAW 2009) in conjunction with the 13th European Conference on Digital Libraries (ECDL 2009)
PC member of the "Engineering Knowledge and Semantic Systems" session at the 22nd, 23rd and 24th International Conference on Industrial, Engineering & Other Applications of Applied Intelligent Systems (IEA/AIE 2009 IEA/AIE 2010 IEA/AIE 2011)
PC member of the 2nd Workshop on Mashups, Enterprise Mashups and Lightweight Composition on the Web (MEM 2009) in conjunction with the 18th International World Wide Web Conference (WWW 2009)
PC member of the Workshop on Innovation in Digital Preservation (InDP 2009) in conjunction with the 9th ACM/IEEE-CS Joint Conference on Digital Libraries (JCDL 2009)
PC member of the 3rd Workshop on Social Aspects of the Web (SAW 2009) in conjunction with the 12th International Conference on Business Information Systems (BIS 2009)
PC member of the 1st International Workshop on Intelligent Systems for Environmental (Knowledge) Engineering and EcoInformatics (i-SEEK 2009) in conjunction with the 3rd International Conference on Complex, Intelligent and Software Intensive Systems (CISIS 2009)
PC member of the 2nd Workshop on Collective Intelligence in Semantic Web and Social Networks (CISWSN 2008) in conjunction with the IEEE/WIC/ACM International Conference on Web Intelligence (WI 2008)
PC member of the 2nd IEEE Conference and Exibition on Next Generation Mobile Applications, Services and Technologies (NGMAST 2008)
PC member of the 1st Workshop on Mashups, Enterprise Mashups and Lightweight Composition on the Web (MEM&LCW 2008) in conjunction with the 9th International Conference on Web Information Systems Engineering (WISE 2008)
PC member of the 1st International Symposium on Intelligent Interactive Multimedia Systems and Services (KES-IIMSS-08)
PC member of Workshop on Collective Intelligence on Semantic Web (CISW 2007) in conjunction with the IEEE/WIC/ACM Joint International Conference on Web Intelligence and Intelligent Agent Technology (WI/IAT 2007)
PC member of Workshop on Future Mobile and Ubiquitous Information Technologies (FMUIT 2006) in conjunction with 7th International conference on Mobile Data Management (MDM 2006)
PC member of Workshop on XML, Web and Internet Content Technologies (XWICT 2006) in conjunction with 7th International Conference on Web-age Information Management (WAIM 2006)
Reviewer of the ACM Transactions on Information Systems (2015) (TOIS)
Reviewer of Knowledge and Information Systems Journal (KAIS), Springer (2015) (KAIS)
Reviewer of Information Processing and Management Journal (IPM), Elsevier (2015) (IPM)
Reviewer of the special issue of ACM Transactions on Information Systems on Contextual Search and Recommendation (2014) (TOIS)
Reviewer of the ACM Transactions on Internet Technology (2014) (TOIT)
Reviewer of the 7th International Conference on Web Search and Data Mining (WSDM 2014)
Reviewer for ACM Transactions on Internet Technology (2013) (TOIT)
Reviewer of the 6th International Conference on Web Search and Data Mining (WSDM 2013)
Reviewer of Internetational Journal of Human-Computer Studies, Elsevier in 2012 (IJHCS)
Reviewer of Internetational Journal of Decision Support Systems, Elsevier in 2012 (DSS)
Reviewer of Internet Research Journal in 2011 (IRJ)
Reviewer of Central European Journal of Computer Science in 2011 (CEJCS)
Reviewer of the 4th International Conference on Web Search and Data Mining (WSDM 2011)
Reviewer of the 9th International Conference on Web Engineering (ICWE 2009)
Reviewer of the 18th International World Wide Web Conference (WWW 2009)
Reviewer for ACM Transactions on Information Systems in 2009 (TOIS) and Journal of Computer Science and Technology in 2009-2010 (JCST)
Reviewer for Journal of Computer Science and Technology in 2009-2010 (JCST)
Reviewer of the 8th International Conference on Web Engineering (ICWE 2008)
Reviewer of the 17th International World Wide Web Conference (WWW 2008)
Reviewer of the 12th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES 2008)
Reviewer of the 12th Database Systems for Advanced Applications Conference (DASFAA 2007)
Reviewer for Database and Web Information Systems Symposium (DBWeb 2006) and guest reviewer for Transactions on Databases (TOD) and Journal of the Institute of Electronics, Information and Communication Engineers (IEICE)