DB&IS Seminar WS 2020/21

Seminar on Recent Developments in Databases and Information Systems. 

To attend this seminar, students need to register according to the registration procedure explained below. After the end of the registration process, participants are selected and informed. Each selected student will get assigned one research paper that needs to be presented in a 45-minute talk at the end of the semester. Finally, also a short report (4 pages) about the presented paper needs to be submitted, the latest two weeks after the presentation.


  • 2020-08-31 Initial Collection of Papers published, registration opened
  • 2020-08-20 Page created

Dates and Deadlines

  • 2020-09-30 Registration to the Seminar

Information on the Registration Process

  • This seminar is offered in the Winter semester of 2020/21.
  • The number of participants is limited.
  • Registration is not done on a first-come, first-served basis.
  • In order to register, download this json template registration file, rename it to yourmatriculationnumber.json, edit it to reflect your information and send it as an attachment via email to Damjan Gjurovski (gjurovski at cs.uni-kl.de). Make sure the file is valid JSON and ASCII or UTF-8 encoded, the latter without byte order mark. Use the paper ids from the following table to specify your preference for at least five papers. Please use your official university email account @cs.uni-kl.de or @student.uni-kl.de to register and to send the email. 
  • Registration due September 30th (This deadline will NOT be extended).
  • Soon after the end of the registration, we will let you know whether or not you got a slot in the seminar.


ID Paper
1 Junzhou Zhao, Pinghui Wang, Jing Tao, Shuo Zhang, John C.S. Lui: Continuously Tracking Core Items in Data Streams with Probabilistic Decays link
2 Edward Gan, Peter Bailis, Moses Charikar: CoopStore: Optimizing Precomputed Summaries for Aggregation link
3 Kevin Wellenzohn, Michael H. Böhlen, Sven Helmer: Dynamic Interleaving of Content and Structure for Robust Indexing of Semi-Structured Hierarchical Data link
4 Harald Lang, Alexander Beischl, Viktor Leis, Peter Boncz, Thomas Neumann, Alfons Kemper: Tree-Encoded Bitmaps link
5 Robin Rehrmann, Carsten Binnig, Alexander Boehm, Kihong Kim, Wolfgang Lehner: Sharing Opportunities for OLTP Workloads in Different Isolation Levels link
6 Huanchen Zhang, Xiaoxuan Liu, David G. Andersen, Michael Kaminsky, Kimberly Keeton, Andrew Pavlo: Order-Preserving Key Compression for In-Memory Search Trees link
7 Dawei Huang, Dong Young Yoon, Seth Pettie, Barzan Mozafari: Joins on Samples: A Theoretical Guide for Practitioners link
8 Jeyhun Karimov, Volker Markl, Tilmann Rabl: AJoin: Ad-hoc Stream Joins at Scale link
9 Zongheng Yang, Eric Liang, Amog Kamsetty, Chenggang Wu, Yan Duan, Xi Chen, Pieter Abbeel, Joseph M. Hellerstein, Sanjay Krishnan, Ion Stoica: Deep Unsupervised Cardinality Estimation link

You have to be in the University's VPN (full tunnel) for accessing some of the papers. 


  • Participants should have successfully attended the core lecture Datenbanksysteme (database systems) or equivalent.
  • Having attended the beginner's course Informationssysteme (information systems), or equivalent, is assumed anyway.


AG DBIS, TU Kaiserslautern

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