Zoi Kaoudi

Senior Researcher

EDUCATION

• (04/2005 - 07/2011) PhD in Advanced Information Systems in the Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Greece.
  Thesis title: Distributed RDF Query Processing and Reasoning in Peer-to-Peer Networks
  Supervisor: Manolis Koubarakis
   

• (09/1999 - 07/2004) Diploma in Electrical and Computer Engineering from the Department of Electrical and Computer Engineering, National Technical University of Athens (NTUA), Greece.
  Specialization: Computer Science
  Thesis title: Prototype System to Manipulate and Store RDF Schemas
  GPA: 8.3 out of 10
  Supervisor: Timos Sellis
   

EMPLOYMENT AND ACADEMIC EXPERIENCE

• (11/2019 - present) Senior Researcher at TU Berlin

• (08/2017 - 10/2019) Scientist at Qatar Computing Research Institute (QCRI)

• (12/2014 - 07/2017) Postdoc at Qatar Computing Research Institute (QCRI)

• (11/2013 - 11/2014) Research Associate at IMIS of Athena Research Center

• (09/2011 - 10/2013) Postdoc at Oak team INRIA Saclay under the supervision of Ioana Manolescu

• (09/2008 - 08/2011) Research assistant in project SemsorGrid4Env

• (10/2007 - 03/2008) Research assistant in project Peer-to-Peer Techniques for Semantic Web Services 

• (09/2008 - 08/2011) Research assistant in project Ontogrid

• (Winter semesters 2007-2010) Teaching assistant in graduate course Semantic Web 

• (Winter semesters 2005, 2006) Teaching assistant in undergraduate course Artificial Intelligence

RESEARCH INTERESTS

• Machine learning for knowledge graphs

• Cross-platform query optimization

• Scalable machine learning using data management techniques

• Distributed/parallel RDF data management

• I am teaching the graduate course AIM-3 - Scalable Data Science: Systems and Methods at TU Berlin.

• Our cross-platform system, Rheem, joins the Apache community as Apache Wayang (Incubating)!

• Our book Cloud-Based RDF Data Management in Synthesis Lectures on Data Management is online!

• We will be presenting a tutorial about cross-platform query processing in ICDE 2018.

• Our in-house cross-platform system, Rheem, got accepted for a presentation in Spark summit 2017.

• Invited tutor at Global Entrepreneurship Week 2015 with Paolo Papotti on Introduction to Big Data.

• Co-organized DESWeb workshop to be held in conjunction with ICDE 2015.

• Invited Lecturer at Reasoning Web Summer School 2014 with T. Kementsietsidis.

• Dissemination Co-Chair at European Data Forum 2014.

• Invited tutorial on "Linked Data Management on the Cloud" at the Open Data Tutorials in conjunction with the 2nd International Workshop on Open Data (WOD 2013).

2020

• S. Rizzo, Y. Chen, L. Pang, J. Lucas, Z. Kaoudi, J. Quiane-Ruiz, S. Chawla: Prescriptive Learning for Air-Cargo Revenue Management In ICDM 2020.

• A. Mohamed, S. Parambath, Z. Kaoudi, A. Aboulnaga: Popularity Agnostic Evaluation of Knowledge Graph Embeddings. In UAI 2020. [pdf]

• A. Mohamed, G. Abuoda, A. Ghanem, Z Kaoudi, A Aboulnaga: RDFFrames: Knowledge Graph Access for Machine Learning Tools. In VLDB 2020 (demo). [pdf]

• S. Kruse, Z. Kaoudi, B. Contreras-Rojas, S. Chawla, F. Naumann, J. Quiane-Ruiz: RHEEMix in the data jungle: a cost-based optimizer for cross-platform systems. The VLDB Journal, 2020. [pdf]

• Z. Kaoudi, I. Manolescu, S. Zampetakis: Cloud-Based RDF Data Management. Synthesis Lectures on Data Management, Morgan & Claypool Publishers, 2020. [link]

• Z. Kaoudi, J. Quiane-Ruiz, B. Contreras-Rojas, R. Padro-Meza, A. Troudi, S. Chawla: ML-based Cross-Platform Query Optimization. ICDE, 2020. [pdf]

2019

• B. Contreras-Rojas, J. Quiane-Ruiz, Z. Kaoudi, Saravanan Thirumuruganathan: TagSniff: Simplified Big Data Debugging for Dataflow Jobs. SoCC 2019. [pdf]

• S. Kruse, Z. Kaoudi, J. Quiane-Ruiz, S. Chawla, F. Naumann, and B. Contreras-Rojas: Optimizing Cross-platform Data Movement. ICDE 2019 (short paper).

2018

• Divy Agrawal, Sanjay Chawla, Bertty Contreras-Rojas, Ahmed K. Elmagarmid, Yasser Idris, Zoi Kaoudi, Sebastian Kruse, Ji Lucas, Essam Mansour, Mourad Ouzzani, Paolo Papotti, Jorge-Arnulfo Quiane-Ruiz, Nan Tang, Saravanan Thirumuruganathan, Anis Troudi: RHEEM: Enabling Cross-Platform Data Processing - May The Big Data Be With You! -. PVLDB 11(11): 1414-1427, 2018. [pdf]

• Zoi Kaoudi and Jorge-Arnulfo Quiane-Ruiz. Cross-Platform Data Processing: Uses Cases and Challenges. ICDE 2018 (tutorial). [pdf] [slides]

2017

• Zoi Kaoudi, Jorge-Arnulfo Quiane-Ruiz, Saravanan Thurumuruganathan, Sanjay Chawla and Divy Agrawal. A Cost-based Optimizer for Gradient Descent Optimization. SIGMOD 2017. [pdf]

2016

• Sebastian Kruse, Anja Jentzsch, Thorsten Papenbrock, Zoi Kaoudi, Jorge-Arnulfo Quiane-Ruiz, Felix Naumann. RDFind: Scalable Conditional Inclusion Dependency Discovery in RDF Datasets. SIGMOD 2016.

• D. Agrawal, L. Ba, L. Berti-Equille, S. Chawla, A. Elmagarmid, H. Hammady, Y. Idris, Z. Kaoudi, Z. Khayyat, S. Kruse, M. Ouzzani, P. Papotti, J. Quiane-Ruiz, N. Tang, M. J. Zaki. Rheem: Enabling Multi-Platform Task Execution. SIGMOD 2016 (demo). [pdf]

• D. Agrawal, S. Chawla, A. Elmagarmid, Z. Kaoudi, M. Ouzzani, P. Papotti, J. Quiane-Ruiz, N. Tang and M. J. Zaki. Road to Freedom in Big Data Analytics. In EDBT 2016 (vision paper). [pdf]

2015

• Zoi Kaoudi and Ioana Manolescu. RDF in the Clouds: A Survey. VLDB Journal, 24(1): 67-91, 2015. [pdf]

• Francois Goasdoue, Zoi Kaoudi, Ioana Manolescu, Jorge Quiane-Ruiz and Stamatis Zampetakis. CliqueSquare: Flat Plans for Massively Parallel RDF Queries. In ICDE 2015. [pdf]

• Benjamin Djahandideh, Francois Goasdoue, Zoi Kaoudi, Ioana Manolescu, Jorge Quiane-Ruiz and Stamatis Zampetakis. CliqueSquare in Action: Flat Plans for Massively Parallel RDF Queries. In ICDE 2015 (demo). [pdf]

2014

• Zoi Kaoudi and Anastasios Kementsietsidis. Query Processing for RDF Databases. Reasoning Web: Reasoning on the Web in the Big Data Era, volume 8714, 2014, pp 141-170. [pdf]

• Zoi Kaoudi and Ioana Manolescu. Cloud-based RDF data management. Tutorial in SIGMOD 2014. [pdf][slides]

• Francesca Bugiotti, Jesus Camacho-Rodriguez, Francois Goasdoue, Zoi Kaoudi, Ioana Manolescu and Stamatis Zampetakis. SPARQL Query Processing in the Cloud. In A. Harth, K. Hose and R. Schenkel (Eds.) Linked Data Management, Chapman and Hall/CRC 2014.

2013

• Zoi Kaoudi and Manolis Koubarakis. Distributed RDFS Reasoning over Structured Overlay Networks. Journal on Data Semantics 2(4): 189-227, 2013. [pdf]

• Francois Goasdoue, Zoi Kaoudi, Ioana Manolescu, Jorge Quiane-Ruiz and Stamatis Zampetakis. CliqueSquare: efficient Hadoop-based RDF query processing. In Journees de Bases de Donnees Avancees (BDA), 2013.

• Zoi Kaoudi and Ioana Manolescu. Triples in the clouds. Tutorial in ICDE 2013. [pdf][slides]

2012

• Andres Aranda-Andujar, Francesca Bugiotti, Jesus Camacho-Rodriguez, Dario Colazzo, Francois Goasdoue, Zoi Kaoudi, Ioana Manolescu. AMADA: Web Data Repositories in the Amazon Cloud. 21st ACM International Conference on Information and Knowledge Management (CIKM 2012), demo paper Maui, USA, 2012. [pdf]

• Francesca Bugiotti, Francois Goasdoue, Zoi Kaoudi, Ioana Manolescu. RDF Data Management in the Amazon Cloud. Workshop on Data analytics in the Cloud (in conjunction with EDBT/ICDT 2012), Berlin, Germany, 2012. [pdf]

2010

• Zoi Kaoudi, Kostis Kyzirakos, Manolis Koubarakis. SPARQL Query Optimization on Top of DHTs. 9th International Semantic Web Conference (ISWC 2010), Shanghai, China, November 7-11, 2010. [pdf]

• Zoi Kaoudi, Manolis Koubarakis, Kostis Kyzirakos, Iris Miliaraki, Matoula Magiridou and Antonis Papadakis-Pesaresi. Atlas: Storing, Updating and Querying RDF(S) Data on Top of DHTs. Journal of Web Semantics: Science, Services and Agents on the World Wide Web, 2010. [link]

2009

• Zoi Kaoudi, Iris Miliaraki, and Manolis Koubarakis. RDFS Reasoning and Query Answering on Top of DHTs. 8th Hellenic Data Management Symposium (HDMS 2009), Athens, Greece, August, 2009 (informal proceedings).

2008

• Zoi Kaoudi, Iris Miliaraki and Manolis Koubarakis. RDFS Reasoning and Query Answering on Top of DHTs. 7th International Semantic Web Conference (ISWC 2008), Karlsruhe, Germany, October 26-30,  2008. [pdf][bib]

• Iris Miliaraki, Zoi Kaoudi and Manolis Koubarakis. XML Data Dissemination using Automata on top  of Structured Overlay Networks. 17th International World Wide Web Conference (WWW 2008), Beijing,  China, April 21-25, 2008. [pdf][bib]

• Iris Miliaraki, Zoi Kaoudi and Manolis Koubarakis. XML Data Dissemination using Automata on top of Structured Overlay Networks. 7th Hellenic Data Management Symposium (HDMS 2008), Heraklion, Greece, July, 2008 (informal proceedings).

2007

• Zoi Kaoudi, Manolis Koubarakis, Kostis Kyzirakos, Matoula Magiridou, Iris Miliaraki and Antonis Papadakis-Pesaresi. Publishing, Discovering and Updating Semantic Grid Resources using DHTs. CoreGRID Workshop on Grid Programming Model, Grid and P2P Systems Architecture, Grid Systems, Tools and Environments. Heraklion, Crete, Greece. June 12-13, 2007. [pdf] [bib] []

2006

• Zoi Kaoudi, Iris Miliaraki, Matoula Magiridou, Erietta Liarou, Stratos Idreos and Manolis Koubarakis, Semantic Grid Resource Discovery using DHTs in Atlas. In "Knowledge and Data Management in GRIDS", Talia Domenico, Bilas Angelos, and Dikaiakos Marios D.(editors), Springer, 2006 [pdf] [bib] []

• Manolis Koubarakis, Iris Miliaraki, Zoi Kaoudi, Matoula Magiridou and Antonis Papadakis-Pesaresi. Semantic Grid Resource Discovery using DHTs in Atlas. 3rd GGF Semantic Grid Workshop. Athens Greece. February 13-16, 2006. [pdf] [bib] []

• Zoi Kaoudi, Iris Miliaraki, Matoula Magiridou, Antonios Papadakis-Pesaresi and Manolis Koubarakis. Storing and Querying RDF Data in Atlas. In 3rd European Semantic Web Conference (ESWC2006), 11 - 14 June 2006, Budva, Montenegro, Demo paper. [pdf] [bib] []

2005

• Zoi Kaoudi, Theodore Dalamagas, and Timos Sellis. RDFSculpt: Managing RDF Schemas under Set-like Semantics. In Proceedings of the 2^nd European Semantic Web Conference 2005 (ESWC05), Crete, Greece, 2005. [pdf] [bib] []

• Manolis Koubarakis, Zoi Kaoudi and Iris Miliaraki. Semantic Grid Service Discovery using DHTs. Extended Abstract. In Proceedings of the 1st CoreGrid WP2 Workshop on Knowledge and Data Management. Poznan, Poland. September 13-14, 2005. [pdf]

• Zoi Kaoudi. Distributed RDF Query Processing and Reasoning in Peer-to-Peer Networks. PhD thesis, Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Greece, 2011. [pdf]

• Zoi Kaoudi. Prototype System to Manipulate and Store RDF Schemas. Diploma thesis, Department of Electrical and Computer Engineering, National Technical University of Athens, Greece, 2004.
  [pdf in Greek]

TRAINING

• (10-16 July 2005): 3rd Summer School on Ontological Engineering and the Semantic Web (SSSW'05)

• Foreign Languages

  • English: Cambridge Certificate of Proficiency English
                  Michigan Certificate of Proficiency in English

  • German: Zertifikat Deutch (Grundstufe)

* rdf files were created by bibtex2rdf tool