The Database Systems Group of the Free University of Bozen-Bolzano aims at enhancing current DB technologies to support complex query processing and data analysis, in particular for temporal and spatial data. The group is striving for scalable and efficient algorithms with the goal of embedding them into DBMSs. Our research method combines foundational studies with systems engineering and empirical evaluations. The research is driven by real-world applications in different areas.
Best Paper Award at SSDBM 2023
Our paper "Indexing Temporal Relations for Range-Duration Queries" by M. Ceccarello, A. Dignös, J. Gamper, and C. Khnaisser has been selected for the best paper award at SSDBM 2023 in Los Angeles, CA, USA. Congratulations!
Paper accepted at VLDB 2023
The paper "TSM-Bench: Benchmarking Time Series Database Systems for Monitoring Applications" by A. Khelifati, M. Khayati, A. Dignös, D. Difallah, and P. Cudre-Mauroux has been accepted for publication at VLDB 2023 in Vancouver, Canada.
Best Paper Award at ADBIS 2022
Our paper "Querying Temporal Anomalies in Healthcare Information Systems and Beyond" by C. Khnaisser, H. Hamrouni, D. B. Blumenthal, A. Dignös, and J. Gamper has been selected for the best paper award at ADBIS 2022 in Torino, Italy. Congratulations!
Paper accepted at VLDB 2023
Our paper "Fast and Scalable Mining of Time Series Motifs with Probabilistic Guarantees" by M. Ceccarello and J. Gamper has been accepted for publication at VLDB 2023 in Vancouver, Canada.
Paper accepted in Information Sciences
Our paper "Enumerating dissimilar minimum cost perfect and error-correcting bipartite matchings for robust data matching" by D. B. Blumenthal, S. Bougleux, A. Dignös and J. Gamper has been accepted in Information Sciences. [link]
Paper published in The Journal of Supercomputing
Our paper "APT-Dt-KC: advanced persistent threat detection based on kill-chain model" by M. Panahnejad and M. Mirabi has been published in The Journal of Supercomputing. [link]
Former PhD student David B. Blumenthal won the best PhD student award
We congratulate our former PhD student David B. Blumenthal for winning the best PhD student award from the Faculty of Computer Science of the Free University of Bozen-Bolzano for the year 2020. Congratulations David!
Paper published in The Journal of Supercomputing
Our paper "Controller placement in software defined networks using multi-objective antlion algorithm" by M. M. Kazemian and M. Mirabi has been published in The Journal of Supercomputing. [link]
Paper accepted in The VLDB Journal
Our paper "Leveraging Range Joins for the Computation of Overlap Joins" by A. Dignös, M. H. Böhlen, J. Gamper, C. S. Jensen and P. Moser has been accepted for publication in The VLDB Journal.
Paper published in The Journal of Supercomputing
Our paper "Efficient XML data placement schemes over multiple mobile wireless broadcast channels" by S. F. Ozonbolagh and M. Mirabi has been published in The Journal of Supercomputing. [link]
Paper accepted in Information Systems
Our paper "The Role of Local Dimensionality Measures in Benchmarking Nearest Neighbor Search" by M. Ceccarello and Martin Aumüller has been accepted for publication in Information Systems.
Paper accepted in Information Systems
Our paper "Scalable generalized median graph estimation and its manifold use in bioinformatics, clustering, classification, and indexing" by D. B. Blumenthal, N. Boria, S. Bougleux, L. Brun, J. Gamper and B. Gaüzère has been accepted for publication in Information Systems.
Demo accepted at EDBT 2021
Our demo paper "Correlation graph analytics for stock time series data" by T. Liu, P. Coletti, A. Dignös, J. Gamper and M. Murgia has been accepted for publication at EDBT 2021 in Nicosia, Cyprus.
Paper accepted in The VLDB Journal
Our paper "Cache-Efficient Sweeping-Based Interval Joins for Extended Allen Relation Predicates" by D. Piatov, S. Helmer, A. Dignös, and F. Persia has been accepted for publication in The VLDB Journal.
Paper accepted at ICDE 2021
Our research paper "Approximating multidimensional range counts with maximum error guarantees" by M. Shekelyan, A. Dignös, J. Gamper, and M. Garofalakis has been accepted for publication at ICDE 2021 in Chania, Greece.
Paper published in TKDD
Our paper "A General Coreset-Based Approach to Diversity Maximization under Matroid Constraints" by M. Ceccarello, A. Pietracaprina, and G. Pucci has been published in ACM Transactions on Knowledge Discovery from Data. [link]
Johann Gamper Demo Co-Chair of ICDE 2021
Johann has been appointed Demo Co-Chair of ICDE 2021 in Chania, Crete, Greece.
Johann Gamper re-nominated Vice-Rector of unibz
We congratulate Johann for being re-nominated vice-rector for research and innovation at unibz. [more]
PhD defense of Giovani Mahlknecht
Giovani successfully defended his PhD thesis entitled "Temporal Aggregation for Data Analytics". Congratulations Giovanni!
Paper accepted in The VLDB Journal
Our paper "Finding k-Shortest Paths with Limited Overlap" by T. Chondrogiannis, P. Bouros, J. Gamper, U. Leser, and D. B. Blumenthal has been accepted for publication in The VLDB Journal.
Paper accepted in Future Generation Computer Systems
Our paper "Improving orienteering-based tourist trip planning with social sensing" by F. Persia, G. Pilato, M. Ge, P. Bolzoni, D. D'Auria, and S. Helmer has been accepted for publication in Future Generation Computer Systems.
PhD defense of David B. Blumenthal
David successfully defended his PhD thesis entitled "New Techniques for Graph Edit Distance Computation". Congratulations David!
Paper accepted at SSTD 2019
Our research paper "Period Index: A Learned 2D Hash Index for Range and Duration Queries" by A. Behrend, A. Dignös, J. Gamper, P. Schmiegelt, H. Voigt, M. Rottmann, and K. Kahl has been accepted for publication at SSTD 2019 in Vienna, Austria.
Demo accepted at SSTD 2019
Our demo paper "HOTPERIODS: Visual Correlation Analysis of Interval Data" by N. Duran, G. Mahlknecht, A. Dignös and J. Gamper has been accepted for publication at SSTD 2019 in Vienna, Austria.
Paper accepted in The VLDB Journal
Our paper "Comparing heuristics for graph edit distance computation" by D. B. Blumenthal, N. Boria, J. Gamper, S. Bougleux, and L. Brun has been accepted for publication in The VLDB Journal.
Fabio Persia PC Co-Chair of IEEE HCC 2019
Fabio has been appointed Program Co-Chair of IEEE HCC 2019 at Laguna Hills, California, USA.
Fabio Persia PC Co-Chair of IEEE ISM 2019
Fabio has been appointed Program Co-Chair of IEEE ISM 2019 in San Diego, California, USA.
Paper accepted at GbRPR 2019
Our paper "GEDLIB: A C++ Library for Graph Edit Distance Computation" by D. B. Blumenthal, S. Bougleux, J. Gamper, and L. Brun has been accepted for publication at GbRPR 2019 in Tours, France. Check out the code here.
Paper accepted at VLDB 2019
Our paper "Snapshot semantics for temporal mutliset relations" by A. Dignös, B. Glavic, X. Niu, J. Gamper, and M. H. Böhlen has been accepted for publication at VLDB 2019 in Los Angeles, USA.
Johann Gamper nominated Vice-Rector of unibz
We congratulate Johann for being nominated vice-rector for research and innovation at unibz. [more]
SSDBM 2018 in Bozen-Bolzano
We successfully concluded the SSDBM in Bozen-Bolzano. Pictures of the conference and mountain tour are available here.