Research Projects

GEDLIB
GEDLIB is an easily extensible C++ library for (suboptimally) computing the graph edit distance (GED) between two labeled graphs. GED is defined as the minimum cost of a sequence of elementary edit operations that transforms one graph into another. There are six elementary edit operations: changing the label of an existing node, inserting an isolated node, deleting an isolated node, changing the label of an existing edge, inserting an an edge between two existing nodes, and deleting an edge. GEDLIB implements several state of the art methods for computing GED and comes with predefined edit costs for some benchmark datasets. Further methods and edit costs can easily be implemented by the user. [more]
Temporal Relational Database Management Systems
Aims at extending RDBMs with support for querying interval-timestamped data under sequenced semantics. The basic idea is to reduce the temporal operators to the non-temporal counterparts. Our solution is implemented in the kernel of PostgreSQL. [more]
Temporal Data Analytics
Aims at developing solutions for analyzing temporal data. Specific adressed research problems include the development of algorithms for efficient computation of aggregation operators, the computation of approximation of aggregation result sets, support for visual data analysis. [more]
DASA
Aims at developing solutions for managing/analyzing time series data coming from weather stations in agriculture. Specific research problems include the imputation of missing values and the search for similar time series or episodes, e.g., seek the most similar summer. [more]
Isochrones
Aims at studying isochrones as a tool for reachability and catchment analysis in spatial network databases. [more]
Finished projects
AQUIST, MEDAN, eBZ, eMayor
News
09.07.2019
PhD defense of David B. Blumenthal

David B. Blumenthal successfully defended his PhD thesis entitled "New Techniques for Graph Edit Distance Computation".


08.06.2019
Paper accepted at SSTD 2019

Our research paper "Period Index: A Learned 2D Hash Index for Range and Duration Queries" has been accepted for publication at SSTD 2019 in Vienna, Austria.


06.06.2019
Demo accepted at SSTD 2019

Our demo paper "HOTPERIODS: Visual Correlation Analysis of Interval Data" has been accepted for publication at SSTD 2019 in Vienna, Austria.


26.05.2019
Paper accepted in The VLDB Journal

Our paper "Comparing heuristics for graph edit distance computation" has been accepted for publication in The VLDB Journal.


18.03.2019
Fabio Persia appointed PC Co-Chair of IEEE HCC 2019

Fabio Persia has been appointed Program Co-Chair of IEEE HCC 2019 at Laguna Hills, California, USA.


18.03.2019
Fabio Persia appointed PC Co-Chair of IEEE ISM 2019

Fabio Persia has been appointed Program Co-Chair of IEEE ISM 2019 in San Diego, California, USA.


27.02.2019
Paper accepted at GbRPR 2019

Our paper "GEDLIB: A C++ Library for Graph Edit Distance Computation" has been accepted for publication at GbRPR 2019 in Tours, France. Check out the code here.


16.01.2019
Paper accepted at VLDB 2019

Our paper "Snapshot semantics for temporal mutliset relations" has been accepted for publication at VLDB 2019 in Los Angeles, USA.


01.10.2018
Johann Gamper nominated Vice-Rector of unibz

We congratulate Johann Gamper for being appointed vice-rector for research and innovation at unibz. [more]


01.08.2018
SSDBM 2018 in Bozen-Bolzano

We successfully concluded the SSDBM in Bozen-Bolzano. Pictures of the conference and mountain tour are available here.



Free University of Bozen-Bolzano
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