Premier full conference publications¹

  • [8] Completeness-aware Rule Learning from Knowledge Graphs, Thomas Pellissier Tanon, Daria Stepanova, Simon Razniewski, Paramita Mirza and Gerhard Weikum, ISWC, Vienna, Austria, 2017 - Acceptance rate 22.3%pdf-icon-small
  • [7] Predicting Completeness in Knowledge Bases, Luis Galárraga, Simon Razniewski, Antoine Amarilli, Fabian M. Suchanek, WSDM, Cambridge, UK, 2017 - Acceptance rate 16%pdf-icon-small
  • [6] Optimizing Update Frequencies for Decaying Information, Simon Razniewski, CIKM, Indianapolis, USA, 2016 - Acceptance rate: 22.8%pdf-icon-small
  • [5] Identifying the Extent of Completeness of Query Answers over Partially Complete Databases, Simon Razniewski, Flip Korn, Werner Nutt, Divesh Srivastava, SIGMOD, Melbourne, Australia, 2015 - Acceptance rate: 25.5%pdf-icon-small
  • [4] Verification of Query Completeness over Processes, Simon Razniewski, Marco Montali, Werner Nutt, International Conference on Business Process Management (BPM), Beijing, China, 2013 - Acceptance rate: 14.4%pdf-icon-small
  • [3] Completeness Statements about RDF Data Sources und Their Use for Query Answering, Fariz Darari, Werner Nutt, Giuseppe Pirro, Simon Razniewski, Int. Semantic Web Conference (ISWC), Australia, 2013 - Acceptance rate: 21.5%pdf-icon-small
  • [2] Completeness of Queries over SQL Databases, Werner Nutt, Simon Razniewski, Conference on Information und Knowledge Management (CIKM), Maui, USA, 2012 - Acceptance rate: 13.4%pdf-icon-small
  • [1] Completeness of Queries over Incomplete Databases, Simon Razniewski, Werner Nutt, Int. Conference on Very Large Databases (VLDB), Seattle, USA, 2011 - Acceptance rate: 18.1%pdf-icon-small

¹Rank A* or A in the Core 2014 ranking (

Other publications

  • [18] Doctoral Advisor or Medical Condition: Towards Entity-specific Rankings of Knowledge Base Properties, Simon Razniewski, Vevake Balaraman and Werner Nutt, ADMA, Singapore, 2017 - Acceptance rate spotlight research papers: 16.9%pdf-icon-small
  • [17] Assessing the Completeness of Entities in Knowledge Bases, Albin Ahmeti, Simon Razniewski and Axel Polleres, ESWC (Poster), Portoroz, Slovenia, 2017pdf-icon-small
  • [16] Cardinal Virtues: Extracting Relation Cardinalities from Text, Paramita Mirza, Simon Razniewski, Fariz Darari and Gerhard Weikum, ACL (short paper), Vancouver, Canada, 2017 - Acceptance rate: 18.1%pdf-icon-small
  • [15] Expanding Wikidata’s Parenthood Information by 178%, or How To Mine Relation Cardinalities, Paramita Mirza, Simon Razniewski and Werner Nutt, ISWC (Poster), Kobe, Japan, 2016pdf-icon-small
  • [14] Exploiting Hierarchies for Efficient Detection of Completeness in Stream Data, Simon Razniewski, Shazia Sadiq, and Xiaofang Zhou, ADC, Sydney, Australia, 2016pdf-icon-small
  • [13] Managing and Consuming Completeness Information for Wikidata Using COOL-WD, Radityo Eko Prasojo, Fariz Darari, Simon Razniewski, and Werner Nutt, COLD workshop at ISWC, Kobe, Japan, 2016 - Acceptance rate: 46%pdf-icon-small
  • [12] But What Do We Actually Know?, Simon Razniewski, Fabian Suchanek, Werner Nutt, AKBC workshop at NAACL, San Diego, USA, 2016pdf-icon-small
  • [11] Turning The Partial-closed World Assumption Upside Down, Simon Razniewski, Ognjen Savkovic, Werner Nutt, AMW, Panama-City, Panama, 2016pdf-icon-small
  • [10] Enabling Fine-grained RDF Data Completeness Assessment, Fariz Darari, Simon Razniewski, Radityo Eko Prasojo, Werner Nutt, ICWE, Lugano, Switzerland, 2016 - Acceptance rate: 21.1%pdf-icon-small
  • [9] Long-term Optimization of Update Frequencies for Decaying Information, Simon Razniewski, Werner Nutt, International Workshop on Web and Databases at SIGMOD, Melbourne, Australia, 2015 - Acceptance rate: 29%pdf-icon-small
  • [8] Gamified Children Universities: An Exploratory Study, Vincenzo Del Fatto, Gabriella Dodero, Rosella Gennari, Alessandra Melonio, Marco Montali, Simon Razniewski, Santina Torello, Xiaofeng Wang, Floriano Zini, CHI PLAY, 2014
  • [7] Adding Completeness Information to Query Answers over Spatial Data, Simon Razniewski und Werner Nutt, SIGSPATIAL, Dallas, USA, 2014 - Acceptance rate: 21%pdf-icon-small
  • [6] Databases under the Partial Closed-world Assumption: A Survey, Simon Razniewski, Werner Nutt, Grundlagen von Datenbanken, 2014pdf-icon-small
  • [5] Bridging the Semantic Gap between RDF and SPARQL using Completeness Statements, Fariz Darari, Simon Razniewski, Werner Nutt, International Semantic Web Conference (ISWC), 2014
  • [4] Assessing the Completeness of Geographical Data, Simon Razniewski, Werner Nutt, British National Conference on Databases (BNCOD), Oxford, UK, 2013 (Short Paper) - Acceptance rate: 47.6%pdf-icon-small
  • [3] Incomplete Databases: Missing Records and Missing Values, Werner Nutt, Simon Razniewski, Gil Vegliach, Workshop on Data Quality in Data Integration Systems (DQDI), Busan, South Korea, 2012pdf-icon-small
  • [2] Checking Query Completeness over Incomplete Data, Simon Razniewski, Werner Nutt, Short Paper, Workshop on Logic in Databases (LID), Uppsala, Sweden, 2011pdf-icon-small
  • [1] Checking Query Completeness over Incomplete Data, Simon Razniewski, Werner Nutt, KRDB Research Centre Technical Report KRDB11-2, Faculty of Computer Science, Free University of Bozen-Bolzano, Italy, 2011pdf-icon-small


  • Query-driven Data Completeness Management, PhD Thesis, Free University of Bozen-Bolzano, 2014pdf-icon-small

Tools, Scripts, Datasets

  • Property Ranking: Dataset of 350 (entity, property1, property2) pairs for humans in Wikidata, along with a preference judgment [O18]
  • ReCoin: A user script for adding relative completeness annotations to Wikidata. Developed by Albin Ahmeti in the context of the TaDaQua project (Video in Danish) [O17]
  • COOL-WD: A completeness tool for Wikidata. Developed by Radityo Eko Prasojo and Fariz Darari [O10, O13]
  • MAGIC: A tool for reasoning about the completeness of relational databases, implementing functionalities from [P1], and more. Developed by Ognjen Savkovic, Paramita Mirza and Alex Tomasi
  • A dataset of about 2000 crowdsourced completeness assertions for YAGO and Wikidata.
  • Java script to calculate optimal recrawl frequencies [P6, O9]
  • GeoCompleteness: An (incomplete) prototype for showing reasoning about the completeness of geographic data [O4, O7]
  • Lookslikescanned: A website to make PDFs look appear like scanned


Member of the program committee of CIKM 2017 and WebDB 2017. Reviewer for SWJ (2017). External reviewer for AAMAS 2016, SEBD 2015, CIKM 2014, COOPIS 2013, CIKM 2011, BNCOD 2011.