• Senior PC member. 34th International Joint Conference on Artificial Intelligence (IJCAI-25).
• The 9th International Joint Conference on Rules and Reasoning 2025. RuleML+RR'25.
• AAAI Conference on Artificial Intelligence (AAAI-25)
• 36th EUROPEAN SUMMER SCHOOL IN LOGIC, LANGUAGE AND INFORMATION (ESSLLI'25). "Logic and Computation" Track, 2025.
• RuleML+RR 2024. Bucharest, Romania.
• ECAI 2024 Workshop. "Implementing AI Ethics through a Behavioural Lens".
• 16th International Conference on Scalable Uncertainty Management (SUM 2024). Palermo, Italy, Nov. 27-29, 2024.
• 5th International Workshop on the Resurgence of Datalog in Academia and Industry (DATALOG 2.0). Dallas, Texas, October 11-14, 2024.
• IJCAI 2024
• Principles of Knowledge Representation and Reasoning, KR 2024.
• AAAI Conference on Artificial Intelligence (AAAI-24)
• Co-organizer. Workshop on the Foundational Aspects of Neuro-Symbolic Computing (FANeSy). Santiago & Los Andes, Chile, March 4-8, 2024

PAST (some):

• 18th European Conference on Logics in Artificial Intelligence (JELIA 2023) September 20-22, 2023.
• 20th International Conference on Principles of Knowledge Representation and Reasoning (KR2023).
• Thirty-Seventh AAAI Conference on Artificial Intelligence (AAAI-23).
• International Conference on Database Theory (ICDT), 2023
• Member of Program Committee Board (PCB) of IJCAI. 2022-24.
• EXplainable hEalthCare data Management and ANalytics (EXEC-MAN). WS at ADBIS 2023.
• Co-chair "Reasoning Web" Summer School. Co-located with "Declarative AI", Week of September 12th, 2022.
• SACAIR 2022. The 2022 Southern African Conference for Artificial Inteligence Research.
• 5th International Workshop on the Resurgence of Datalog in Academia and Industry (Datalog 2.0), 2022. September 5, 2022, Genova, Italy. Workshop of LPNMR 2022.
• 15th International Conference on Scalable Uncertainty Management, SUM 2022. Paris, October 17-19, 2022.
• Thirty-Sixth AAAI Conference on Artificial Intelligence (AAAI-22)
• VLDB 2022.
• 19th International Conference on Principles of Knowledge Representation and Reasoning (KR2022).
• International Symposium on Foundations of Information and Knowledge Systems (FoIKS), 2022.
• IJCAI 2021, Aug. 2021, Montreal Canada.
• RuleML+RR 2021 (5th International Joint Conference on Rules and Reasoning). Sept. 8-15, 2021.
• ICML Workshop on Algorithmic Recourse, 2021.
• 18th International Conference on Principles of Knowledge Representation and Reasoning (KR2021).
• Thirty-Fifth AAAI Conference on Artificial Intelligence, 2021. AAAI21.
• The 25th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD-2021), May 11-14, 2021.
• IEEE 37th International Conference on Data Engineering (ICDE), 2021.
• European Conference on Logics in Artificial Intelligence (JELIA), May 17-20, 2021, Klagenfurt, Austria.
• Thirty-Fourth AAAI Conference on Artificial Intelligence. February 7-12, 2020, New York, NY, USA.
• IJCAI-PRICAI 2020. Yokohama, Japan, July 11-17, 2020.
• KR2020. 17th International Conference on Principles of Knowledge Representation and Reasoning. Rhodes, Greece, 12-18 September 2020.
• International Conference on Scalable Uncertainty Management (SUM 2020). September 23-25, 2020, Bolzano, Italy.
• Scientific Advisory Board of Reasoning Web Summer School (RW 2020). Oslo, Norway, June 2020.
• RuleML+RR 2020 (4th International Joint Conference on Rules and Reasoning). Oslo, Norway, June 2020.
• Pacific-Asia Conference on Knowledge Discovery and Data Mining PAKDD 2020. Singapore, May 11-14, 2020.
• ECAI 2020. June 8-12, 2020, Santiago de Compostela, Spain.
• ESWC 2020. Heraklion (Greece), May 31 to June 4, 2020.
• Social Media Analytics for Health intelligence (SMA4H). WS co-located with "IEEE/WIC/ACM International Conference on Web Intelligence Web Intelligence = AI in the Connected World". Thessaloniki, Greece, 14-17 of October 2019.
• IJCAII-2019, Macau, China, 2019.
• ISWC-2019, New Zealand, 26-30 October 2019.
• International Joint Conference on Rules and Reasoning (RuleML+RR 2019), Bolzano, Italy, 16-19 September, 2019.
• European Conference on Logics in Articial Intelligence, JELIA 2019. Rende (Italy), 2019.
• Bx 2019 (8th International Workshop on Bidirectional Transformations). Collocated with "Philadelphia Logic Week (PLW) 2019", 2019.
• Extended Semantic Web Conference (ESWC), 2019, Portoroz, Slovenia.
• 16th International Conference on Mobile Systems and Pervasive Computing, MobiSPC-2019, 2019, Halifax, Canada.
• A.P. Ershov Informatics Conference, PSI, 2019, Novosibirsk, Akademgorodok, Russia.
• 33rd AAAI Conference on Articial Intelligence (AAAI'19), Honolulu, USA, 2019.
• DATALOG 2.0. Philadelphia, USA, 2019.
• IEEE International Conference on Data Engineering (ICDE'19), Macau, China, 2019.
• IJCAI-ECAI-2018. Stockholm, Sweden, July 13-19, 2018.
• 16th International Conference on Principles of Knowledge Representation and Reasoning (KR'18). Tempe, Arizona, 30 October-2 November 2018.
• International Semantic Web Conference (ISWC'18). Monterey, USA, October 8-12, 2018.
• International Conference on Scalable Uncertainty Management (SUM'18). Milano, Italy, October 3-5, 2018.
• 1st International Workshop on Social Media Analytics for Healthcare (SMA4H) Co-located with Web Intelligence (WI'18). SMA4H.
• KI 2018 (German Conference on Artificial Intelligence), Berlin, Germany, September 24th-28th 2018.
• International Joint Conference on Rules and Reasoning (RuleML+RR 2018), Luxemburg, September 2018.
• EDBT 2018 (demo track). Vienna, Austria, March, 2018.
• FoIKS 2018 (Tenth International Symposium on Foundations of Information and Knowledge Systems).
• FLAIRS, Florida, USA, 2018.
• Program committee, ACM PODS 2017.
• International Semantic Web Conference (ISWC'17). October 21-25, Vienna, Austria.
• International Conference on Data Science, Technology and Applications (DATA'17). 24-26 July, 2017. Madrid, Spain.
• KI 2017 (The 40th German Conference on Artificial Intelligence), September 25-28th, 2017, Dortmund, Germany.
• 9th USENIX Workshop on the Theory and Practice of Provenance (TaPP 2017). June 22-23, 2017 in Seattle, WA, USA.
• International Joint Conference on Rules and Reasoning (RuleML+RR 2017), London, UK, 12-15th July 2017.
• Member Scientific Advisory Board of the ``Reasoning Web Summer School" (RW 2017).
• SUM 2017 (11th International Conference on Scalable Uncertainty Management), Granada, Spain, October 4-6, 2017.
• International Conference on Management of Data (COMAD), 2017.
• PC-cochair and co-organizer. `Uncertain Reasoning' track at FLAIRS'17, Marco Island, Florida, USA, May 22-24, 2017.
• RR 2016, 10th International Conference on Web Reasoning and Rule Systems. Aberdeen, Scotland, September 9-11. RR16.
• SBBD 2016, Brazilian Symposium on Databases. Salvador, Bahia, Brazil, October 04-07, 2016.
• Program committee, IJCAI 2016.
• Program Committee Theory and Practice of Provenance workshop (TaPP'16), Washington DC, June, 2016.
• Senior PC member WebDB 2016 (in conjunction with SIGMOD/PODS).
• PC-cochair, 10th International Web Rule Symposium (RuleML), July 2016, Stony Brook University, New York, USA.
• Steering comittee, "Alberto Mendelzon Wiorkshop on Foundations of Data MAnagement". AMW 2016 in Panama.
• EDBT 2016, Bordeaux, France, in March 15-18, 2016. Demo Track Program Committee member.
• 9th International Symposium on Foundations of Information and Knowledge Systems (FoIKS 2016). March 07-11, 2016 in Linz, Austria.
• Program Committee IJCAI 2015, Buenos Aires, Argentina, 2015.
• Program Committee SUM 2015, Quebec City, 2015.
• Program Committee SBBD-2015 (Brazilian Symposium on Databases), 2015.
• Program Committee SIGMOD/PODS Ph.D. Symposium, 2015.
• Program Committee AAAI 2015.
• International Conference on Web Reasoning and Rule Systems (RR15).
• 9th Latin American Workshop on Logic, Languages, Algorithms and New Methods of Reasoning (LANMR 2014). 5th - 7th November, 2014. Valle de Bravo, Mexico.
• International Conference of the Chilean Computer Science Society (SCCC 14). Nov. 10-14, Talca, Chile.
• 8th International Conference on Scalable Uncertainty Management (SUM 2014), Oxford, UK, September 15-17, 2014.
• VI Congreso Internacional de Computacion y Telecomunicaciones (COMTEL 2014), October 22-24, Lima, Peru.
• Ershov Informatics Conference (the PSI Conference Series, 9th edition). June 24-27, 2014, in Peterhof, St. Petersburg, Russia.
• International Conference on Web Reasoning and Rule Systems. PhD Consortium (RR'14). Athens, Greece, 15-17 September 2014.
• International Conference on Web Reasoning and Rule Systems (RR'14). Athens, Greece, 15-17 September 2014.
• Invited Editorial Board, special issue of "Semantic Web Journal" on Web Reasoning and Rule Systems, 2013.
• Eighth International Symposium on Foundations of Information and Knowledge Systems (FoIKS 2014). Bordeaux, France, March 03-07, 2014.
• VLDB 2014. PC Member.
• PODS 2013 (32th ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems), New York, USA.
• The 5th International Workshop on Acquisition, Representation and Reasoning with Contextualized Knowledge (ARCOE-LogIC 2013). September 15.19, 2013, Corunna, Spain.
  Collocated 12th International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR-2013).
• NoCoDA (Non-Conventional Data Access) 2013. Co-located with the 22nd ACM International Conference on Information and Knowledge Management (CIKM 2013), November 1st, 2013, San Francisco, CA, USA.
• SUM 2013 (7th International Conference on Scalable Uncertainty Management), 2013, Washington D.C.
• RR 2013. 7th International Conference on Web Reasoning and Rule Systems, Mannheim, Germany, July 27-29 2013.
• LPNMR 2013, International Conferences on Logic Programming and Nonmonotonic Reasoning. Corunna, Spain, September 15-19, 2013.
• VLDB 2013 "Demonstrations" track. August 2013, Riva del Garda, Italy.
• V Congreso Internacional de Computacion y Telecomunicaciones (COMTEL 2013), October 22-25, Lima, Peru.
• 4th International Workshop on Acquisition, Representation and Reasoning with Contextualized Knowledge (ARCOE-12), August 27-28, 2012 Montpellier, France (with ECAI-12).
• Mexican International Conference on Artificial Intelligence (MICAI 2012), "Logic, Knowledge-Based Systems, Multi-Agent Systems and Distributed AI" Track.
• WS on NOn-COnventional Data Access (NoCoDA), co-located with ER12, October 12-15, 2012, Florence, Italy.
• SUM-2012. 6th International Conference on Scalable Uncertainty Management. Marburg, Germany, Sep 17-19, 2012.
• LANMR 2012. Eigth Latin American Workshop on Logic / Languages, Algorithms and New Methods of Reasoning 2012. 10th to 11th September, 2012, Universidad Autonoma Metropolitana, Mexico, D.F.
• IV Congreso Internacional de Computacion y Telecomunicaciones (COMTEL 2012), 24-27 October 2012, Lima, Peru.
• Member Steering committee. "Alberto Mendelzon International WS on Foundations od Data Management. (AMW 2012). Ouro Preto, Brazil, June 27-30, 2012.
• Extended Semantic Web Conference (ESWC 2012), Semantic Data Management track. Heraklion, Greece, May 27-31, 2012.
• International Symposium on Foundations of Information and Knowledge Systems (FoIKS2012). March 5-9, 2012, Kiel, Germany.
• Seventh Latin American Workshop on Logic/Languages, Algorithms and New Methods of Reasoning, Toluca, Mexico, 7-8 November, 2011, LANMR 2011.
• ACM Conference on Information and Knowledge Management, CIKM 2011 (DB Track), Glasgow, October 24th-28th, 2011.
• Annual International Conference of Computer Science and Software Engineering (CASCON 2011), IBM Centers for Advanced Studies, November 2-5, 2009, Markham, Ontario, Canada.
• 30th International Conference of the Chilean Computer Science Society (SCCC 2011). Curico, Chile, November 9-11, 2011.
• Second International Workshop on Logic-Based Interpretation of Context: Modeling and Applications (Log-IC 2011). In conjunction with LPNMR 2011, Vancouver, Canada, May 16-19, 2011.
• Fifth International Conference on Scalable Uncertainty Management (SUM 2011), Dayton, Ohio, USA, October 10th-12th, 2011.
• Workshop on "Data, Logic and Inconsistency" (DALI). Collocated with DEXA 2011, Toulouse, 30 August-2 September 2011.
• Senior PC, IJCAI 2011. 22nd International Joint Conference on Artificial Intelligence, Barcelona, Spain, July 19-22, 2011.
• The Ershov Informatics Conference (PSI Conference). June, 27 - July, 1, 2011, Novosibirsk, Akademgorodok, Russia.
• International Conference on Flexible Query Answering Systems (FQAS 2011 ). Ghent, Belgium, October 26-28, 2011.
• International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR 2011), May 9 to 12, 2011, Vancouver, Canada.
• International Database Engineering & Applications Symposium (IDEAS 2011). Portugal, 2011.
• International Symposium on Foundations of Information and Knowledge Systems (FoIKS2010). Systems. February 15-19, 2010, Sofia, Bulgaria.
• International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE 2010). Crete, Greece, Oct. 26-28, 2010.
• The Alberto Mendelzon International Workshop on Foundations of Data Management (AMW 2010). Buenos Aires, Argentina, May 2010.
• The International ACM Conference on Management of Emergent Digital EcoSystems (ACM MEDES'10), Bangkok, Thailand, October 26th-29th, 2010.
• 14th International Conference on Knowledge-based and Intelligent Information & Engineering Systems (KES 2010), September 8-10, 2010, Cardiff, Wales, UK.
• Fourth International Conference on Scalable Uncertainty Management (SUM 2010). Toulouse, September 28-30, 2010.
• Third International Conference on Data Management in Grid and P2P Systems (Globe 2010), September 1-2, 2010, Bilbao, Spain.
• 4th International Conference on Web Reasoning and Rule Systems (RR 2010). Bressanone (Italy), 22-24 September 2010.
• VLDB 2010. Singapore, September 13-17, 2010.
• DEXA 2010. Bilbao, Spain, August 30 - September 3, 2010.
• Sixth International Symposium on Foundations of Information and Knowledge
• PC co-chair. International Workshop on Logic in Databases (LID 2009), Roskilde University, Denmark, 29-30 October 2009.
• First International Workshop on Logic-Based Interpretation of Context: Modelling and Applications. In conjunction with (LPNMR 2009), Potsdam, 14-19 September 2009.
• International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE 2009). Vilamoura, Algarve-Portugal, Nov. 01-06, 2009.
• Annual International Conference of Computer Science and Software Engineering (CASCON 2009), IBM Centers for Advanced Studies, November 2-5, 2009, Markham, Ontario, Canada.
• International Conference on Web Reasoning and Rule Systems (RR 2009), October 25-26 2009, Chantilly, Virginia, USA.
• International Conference on Scalable Uncertainty Management (SUM 2009). Washington DC, USA, September 28-30, 2009.
• "Advanced Knowledge-based Systems". Invited Session of the 13th International Conference on Knowledge-based and Intelligent Information & Engineering Systems (KES 2009). September 28-30, 2009, Santiago, Chile.
• International Conference on Web Information Systems Engineering (WISE 2009), Poznan, Poland, October 5-7, 2009.
• International Conference on Data Management in Grid and Peer-to-Peer Systems, (Globe 2009). Linz, Austria, Aug-Sept 2009.
• International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR 2009), Potsdam, Germany, September 2009.
• DEXA 2009. Linz, Austria, Aug 31-Sept 4, 2009.
• Sixth European Semantic Web Conference (ESWC 2009), Heraklion, Greece, 31 May - 4 June 2009.
• PC co-chair. The Alberto Mendelzon International Workshop on Foundations of Data Management (AMW 2009). Arequipa, Peru, May 2009.
• International Conference on Database Theory (ICDT 2009).
• International Workshop on Non-Monotonic Reasoning (NMR08), Sydney, Australia, 13-15 September, 2008, (colocated with KR'08).
• Seventh International Semantic Web Conference (ISWC 2008), Karlsruhe, Germany on October 26-30, 2008.
• 7th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE'08), Monterrey, Mexico, November 11-13, 2008.
• Advanced Knowledge-based Systems. Invited Session of the 12nd International Conference on Knowledge-based and Intelligent Information & Engineering Systems (KES 2008). September 3-5, 2008, Zagreb, Croatia.
• 18th Annual International Conference of Computer Science and Software Engineering (CASCON 08), October 27-30, Markham, Ontario, Canada.
• Second International Conference on Web Reasoning and Rule Systems (RR2008), Karlsruhe, October 31 - November 2, 2008. Colocated with ISWC 2008.
• International RuleML Symposium on Rule Interchange and Applications (RuleML-2008), as part of the Business Rules Forum, Orlando, Florida, USA, October 26-27, 2008.
• 7th International Conference on Web Information Systems Engineering (WISE 2008), September 01-04, Auckland, New Zealand, 2008.
• International Conference on Scalable Uncertainty Management (SUM 2008), Napoli, Oct. 1-3, 2008.
• Symposium "Logic In Databases (LID 2008)", Rome, 19-20 May 2008.
• Eleventh International Conference on Principles of Knowledge Representation and Reasoning (KR 2008), Sydney, Australia, September 16-19, 2008.
• Fifth European Semantic Web Conference ( ESWC 2008), Tenerife, Spain, June 1-5, 2008.
• LATIN 2008, the 8th Latin American Theoretical INformatics Conference. Rio de Janeiro, Brasil, April 7-11, 2008.
• Fifth International Symposium on Foundations of Information and Knowledge Systems (FoIKS 2008), Pisa, Italy, February 2008.
• International Workshop on "Living with Uncertainties", colocated with the 22nd International on Automated Software Engineering (ASE 2007), Nov. 5, Atlanta, Georgia, USA.
• South American Database School and II Workshop on Foundation on Databases and the Web (FDW 07). Punta del Este, Uruguay, October 23-26, 2007.
• International RuleML Symposium on Rule Interchange and Applications (RuleML-2007). As part of the Business Rules Forum, Orlando, Florida, USA, October 25-26, 2007
• 4th Semantic Web and Databases Workshop (SWDB 2007). Held with the Ontologies Workshop ODBIS. Collocated with VLDB 07, Sept. 2007.
• 6th International Semantic Web Conference and the 2nd Asian Semantic Web Conference, 2007 (ISWC+ASWC'07), Nov. 11-15, Busan, Korea, 2007.
• 17th Annual International Conference of Computer Science and Software Engineering (CASCON 2007), Toronto, Oct. 22-25, 2007.
• International Conference on Conceptual Modeling (ER 2007). Auckland, New Zealand, November 2007.
• Scalable Uncertainty Management Conference (SUM), Oct. 10-12, 2007, Washington DC area.
• European Semantic Web Conference (ESWC 2007), 3.-7. June 2007, Innsbruck/Austria.
• Noveno Simposio Argentino de Inteligencia Artificial (ASAI 2007). 27-28 Agosto 2007, Mar del Plata, Argentina. JAIO.
• Track "Advances in Querying Non-Conventional Data Sources" of the 3rd International Advanced Database Conference (IADC 2007), San Diego, CA, USA, April 4-6,2007.
• 5th International Conference on "Research, Innovation & Vision for the Future (RIVF)". Information and Communications Technology. Track on Integrated Information Systems: Semantic Concepts & Interoperability. Hanoi, Vietnam, March 7-9, 2007.
• Workshop on Foundations of Databases and the Web. In honor to Alberto Mendelzon. San Rafael Glacier, Chile, November 6-10, 2006. FDW 2006.
• Second International Conference on Rules and Rule Markup Languages for the Semantic Web (RuleML-2006), Atlanta, November 2006.
• 16th Annual International Conference of Computer Science and Software Engineering (CASCON 2006), IBM Centers for Advanced Studies, Toronto, October 16-19, 2006.
• International Workshop on Nonmonotonic Reasoning, session on NMR Systems and Applications, Lake District, England, May/June 2006.
• FLOC/ICLP Workshop on Applications of Logic Programming in the Semantic Web and Semantic Web Services, Seattle, August 2006.
• PC Co-chair. IFIP International Conference on Theoretical Computer Science at the IFIP World Computer Congress (WCC), 2006.
• 10th East-European Conference on Advances in Databases and Information Systems, Thessaloniki (Hellas), September 20-23, 2006. ADBIS 06.
• Co-organizer. "Second International Workshop on Exchange and Integration of Data (EID 2006)". Bressanone, June 2006.
• EDBT Workshop on Inconsistency and Incompleteness in Databases. Muenchen, March 2006.
• ACM Symposium on Principles of Database Systems (PODS), 2006.
• 4th International Conference in Computer Sciences "Research, Innovation & Vision for the Future (RIVF)". Ho Chi Minh City, Vietnam, February 2006.
• Fourth International Symposium on Foundations of Information and Knowledge Systems (FoIKS2006). Budapest (Hungary), February 2006.
• International Conference of the Chilean Computer Science Society, SCCC 2005, Valdivia, Chile, November 2005. CFP.
• International Conference on Ontologies, Databases and Applications of SEmantics (ODBASE'05), Cyprus, Oct 31 - Nov 4, 2005 (part of the OTM federated conferences).
• 8th International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR 05), Diamante, Cosenza, Italy, September 5-8, 2005.
• I will give a course on "The Logic of Consistent Query Answering" at ESSLLI 2005, the 17th European Summer School in Logic, Language and Information, Edimburgh, August 2005.
• Organizing Committee. ARISE Workshop on Exchange and Integration of Data. Toronto, October 7th-9th , 2004, IBM Toronto Lab.
• CASCON 2004, Toronto, October 4-7, 2004.
• Workshop on Deduction and Reasoning Techniques. At IBERAMIA, Puebla, Mexico, Nov. 22-26, 2004.
• XIV International Conference of the Chilean Computer Science Society, SCCC 2004, 8-12 November 2004, Arica CHILE.
• III Chilean Database Workshop, November 9, 2004, Arica, CHILE.
• Eighth East-European Conference on Advances in Databases and Information Systems. 22-25 September, 2004, Budapest, Hungary. ADBIS 04.
• Workshop on Theory and Applications of LP&NMR. Mexican International Conference on Artificial Intelligence, Mexico City, April 26-30, 2004. call.
• International Conference on Database Theory (ICDT 2005), Edinburgh, January 2005.
• International Conference on Very Large Databases (VLDB 2004), Toronto, 2004.
• Third International Symposium on Foundations of Information and Knowledge Systems (FoIKS2004). Vienna (Austria), February 2004.
• IASTED International Conference on Databases and Applications (DBA 2004). Innsbruck, Austria, February 17- February 19, 2004. call
• Jornadas Iberoamericanas de Ingenieria de Software e Ingenieria de Conocimiento (IISIC 2003).
• Dagstuhl-Seminar Nr. 03241. Inconsistency Tolerance in Database, Knowledgebase and Software Systems. June 2003. Organizers: L. Bertossi (Ottawa), Ph. Besnard (Toulouse), A. Hunter (London), T. Schaub (Potsdam). abstract
• XXIII International Conference of the Chilean Computer Science Society SCCC2003
• II Workshop Chileno de Bases de Datos. JORNADAS CHILENAS DE COMPUTACION 2003.
• Fifteenth International Conference on Software Engineering and Knowledge Engineering (SEKE'03).
• ADBIS'2003 . East-European Conference on Advances in Databases and Information Systems (Dresden, Germany, September 3 - 6, 2003). Co-located with VLDB'2003 (Berlin, September 9 - 12, 2003).
• Brazilean Symposium on Databases (SBBD03). Manaos, October 2003.
• Winter School on Semantics and Applications (WSSA'2003), 21-31 July 2003, Montevideo, Uruguay. school's web page.
• XXII International Conference of the Chilean Computer Science Society SCCC2002
• I Workshop Chileno de Bases de Datos. JORNADAS CHILENAS DE COMPUTACION 2002, Copiapo, Chile. Call.
  See also Here
• Latin American Theoretical Informatics, LATIN 2002. Cancun, Mexico, 2002.
• Fifth International Conference on Flexible Query Answering Systems (FQAS 2002), October 27 - 29, 2002, Copenhagen, Denmark FQAS02
• NonMonotonic Reasoning NMR'2002 Workshop "Changing and Integrating Information: From Theory to Practice".
  April 19-21, Toulouse, France (Collocated with KR'2002, April 22-25) NMR02
• 4th International Conference on Software Engineering and Knowledge Engineering SEKE'02
• Sixth East-European Conference on Advances in Databases and Information Systems ADBIS 2002
• Second International Symposium on Foundations of Information and Knowledge Systems FoIKS 2002
• FLOC02 Workshop on Paraconsistent Computational Logic
• Dagstuhl Seminar "Semantics in Databases" (Schloss Dagstuhl, Jan. 7-12, 2001)
• IJCAI'01 WS on Inconsistency in Data and Knowledge (Seattle, Aug. 4-6, 2001)
• II Chilean/German WS on IT (Berlin, Jan. 15-17, 2001). More on Chilean/German Cooperation on IT here .