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EU Centre of ExcellenceISO 9001

ERCIMW3C MemberFraunhofer Project Center

Informatics Laboratory

Head of department

András Benczúr
András Benczúr
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 412
Phone: +36 1 279 6172
Fax: +36 1 209 5269
E-mail: benczur.andrasEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: http://datamining.sztaki.hu/

Secretary

[More information]

Sub-groups of this department

Research Group for Human Language Technologies
Research Group for Parameterized Algorithms and Complexity
Data Warehousing and Business Intelligence Group
Theory of Computing Research Group

Description

Society has reached a point of no return, one that leaves us completely reliant on omnipresent ICT-mediated communication. Mobile and sensor-rich portable devices connect millions of humans with Petabytes of data and numerous on-line services. However, tearing down the physical-digital barrier in a scalable fashion requires both radically novel algorithmic knowledge and in-depth understanding of humans and societies. We will deliver major theoretical advances in real-time intelligent information management of large datasets including online social networks, mobile devices and humans in physical space by delivering three functions: “alert”, by real-time location-aware knowledge acquisition, analysis and visualization; “response”, through on-demand composition and coordination of large teams; and effective “communication”, through recommendation and personalization.

“Big Data” is an emerging new research area for the methodologies of extreme large scale problems in business intelligence, e-science and Web mining. We concentrate on applications for social network mining, graph clustering, personalized and similarity search, recommendation and spam filtering, as well as security problems ranging from financial risk analysis or insurance fraud to people trafficking or organized crime.

We plan to conduct research ranging from theory to experimentation by building on the unique nature of our research lab. We cover the full chain from core research to industrial deployment, including unique access to data ranging from telecommunication logs to large scale Web crawls. As a particular strength in our previous results, we design algorithms that handle the explosive growth in data sizes and impose no artificial size limits for real-world applications. The highlights of our proposed research with both novel areas as well as related fields where we have the strongest existing results are listed next.

Research areas

• Theory of algorithms
• Complexity
• Computer science
• Data Mining
• Search technologies
• Visual Analytics
• Big data
• Business Intelligence

Selected achievements

The Laboratory hosts the ERC Starting Grant winner Dániel Marx and the winner of the Momentum Grant of the Hungarian Academy of Sciences, András Benczúr. The R&D results of the laboratory focus on data mining and search solutions for community and link analysis, custom solutions for extreme large systems (large Intranets, high traffic portals) as well as for languages with particularly complex syntax in collaboration with computational linguistic groups. For the quality of our research results we were awarded a Yahoo! Faculty Research Grant in the academic year 2006/2007. In 2007 the Group achieved First Prize on the prestigious KDD Cup, a competition involving the best data mining groups around the world. Several of our former PhD students work now at the research centers of the leading internet search companies
Know-how and industrial solutions
Major software products include a customer relation management software capable of visualizing the connection between entities (persons, objects, contracts) as well as in a search engine with integrated linguistic tools for the Hungarian language that serves the Intranet of national branches of multinational companies (T-Mobile, Vodafone, AEGON). We led several customer relation management and risk assessment projects for AEGON Hungary.

Products

• Hungarian Telecom: Intranet and portal search solutions, fully operational since 2004.
• Web server and IT log analytics system, T-Online, AEGON Hungary.
• Hungarian Telecom: Call community and customer analysis tool.
• AEGON Hungary: Desktop search engine, data warehousing, customer network analysis, fraud detection, car insurance campaign toolkit, 2006-.

More information:

leaflet

Staff

Rita Aleksziev
Rita Aleksziev
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 103
Phone: +36 1 279 6118
E-mail: aleksziev.ritaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Gábor Bacsó
Gábor Bacsó
Address: 1111 Budapest, Lágymányosi utca 11.
Room number: L 511
Phone: +36 1 279 6235
E-mail: bacso.gaborEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Dávid Balambér
Dávid Balambér
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 109
Phone: +36 1 279 6119
E-mail: balamber.davidEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Barnabás Lóránt Balázs
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 512
Phone: +36 1 279 6238
E-mail: balazs.barnabasEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Dániel Berecz
Dániel Berecz
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 112
Phone: +36 1 279 7377
E-mail: berecz.danielEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Zsolt Both
Zsolt Both
Address: 1111 Budapest, Lágymányosi u. 11
Mail address: 1111 Budapest, Kende u. 13-17.
Room number: L 111
Phone: +36 1 279 6283
E-mail: both.zsoltEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Ferenc Béres
Ferenc Béres
Address: 1111 Budapest, Lágymányosi u. 11
Room number: L 112
Phone: +36 1 279 7377
E-mail: beres.ferencEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: https://ferencberes.github.io/
Bálint Zoltán Daróczy
Bálint Zoltán Daróczy
Address: 1111 Budapest, Lágymányosi u. 11.
Mail address: 1111 Budapest, Lágymányosi u. 11
Room number: L 113
Phone: +36 1 279 6154
E-mail: daroczy.balintEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: https://dms.sztaki.hu
János Demetrovics
János Demetrovics
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 419
Phone: +36 1 279 6193, +36 1 279 6197
Fax: +36 1 209 5269
E-mail: demetrovics.janosEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Cecília Dudás
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 412
Phone: +36 1 279 6172
E-mail: dudas.ceciliaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Erzsébet Frigó
Erzsébet Frigó
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 104
Phone: +36 1 279 6287
E-mail: frigo.erzsebetEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Katalin Hum
Katalin Hum
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 111
Phone: +36 1 279 6283
E-mail: hum.katalinEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Gábor Ivanyos
Gábor Ivanyos
Address: 1111 Budapest, Lágymányosi u. 11
Mail address: 1111 Budapest, Kende u. 13-17.
Room number: L 409
Phone: +36 1 279 6164
Fax: +36 1 209 5269
E-mail: Ivanyos.GaborEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: https://www.sztaki.hu/~ivanyos/
Domokos Miklós Kelen
Domokos Miklós Kelen
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 112
Phone: +36 1 279 7377
E-mail: kelen.domokos.miklosEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Csaba Kerepesi
Csaba Kerepesi
Address: 1111 Budapest, Lágymányosi u. 11.
Mail address: kerepesi@sztaki.hu
Room number: L 113
Phone: +36 1 279 6154
E-mail: kerepesi.csabaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: http://kerepesi.web.elte.hu/
Levente Kocsis
Levente Kocsis
Address: 1111 Budapest, Lágymányosi u. 11.
Mail address: 1111 Budapest, Lágymányosi u. 11
Room number: L 104
Phone: +36 1 279 6287
E-mail: kocsis.leventeEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
András Kornai
András Kornai
Address: 1111 Budapest, Lágymányosi u. 11.
Mail address: 1111 Kende u 13-17
Room number: L 317
Phone: +36 1 279 6229
E-mail: kornai.andrasEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: http://kornai.com
Péter Kutas
Péter Kutas
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 416
Phone: +36 1 279 6183
E-mail: kutas.peterEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Géza Kós
Géza Kós
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 409
Phone: +36 1 279 6164
Fax: +36 1 209 5269
E-mail: kos.gezaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: http://www.cs.elte.hu/~kosgeza/
Gábor Lukács
Gábor Lukács
Address: 1111 Budapest, Lágymányosi u. 11
Room number: L 101
Phone: +36 1 279 6281
E-mail: lukacs.gaborEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: http://dms.sztaki.hu/hu/tagunk/lukacs-gabor
Dániel Lévai
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 318
Phone: 6157
E-mail: levai.danielEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Dániel Marx
Dániel Marx
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 410
Phone: +36 1 279 6167
E-mail: dmarxEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: http://www.cs.bme.hu/~dmarx/
István Miklós
István Miklós
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L412
Phone: +36 1 279 6172
E-mail: miklos.istvanEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: www.renyi.hu/~miklosi/
András József Molnár
András József Molnár
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 101
Phone: +36 1 279 6281
E-mail: molnar.andras.jozsefEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Dávid Márk Nemeskey
Dávid Márk Nemeskey
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 318
Phone: +36 1 279 6157
E-mail: nemeskey.davidEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: http://hlt.bme.hu/en/david
Andrea Nándoriné Bán
Andrea Nándoriné Bán
Address: 1111 Budapest, Lágymányosi u. 11
E-mail: ban.andreaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Anna Ország
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 102
Phone: +36 1 279 6257
E-mail: orszag.annaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Éva Piller
Address: 1111 Budapest, Lágymányosi u. 11
Room number: L 102
Phone: +36 1 279 6257
E-mail: piller.evaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Rita Veronika Rónai
Rita Veronika Rónai
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 103
Phone: +36 1 279 6118
E-mail: ronai.ritaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Lajos Rónyai
Lajos Rónyai
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 408
Phone: +36 1 209 5269, +36 1 279 6160, +36 1 279 6193
Fax: +36 1 209 5269
E-mail: ronyai.lajosEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu, lajosEZT_TOROLJE_KI@EZT_TOROLJE_KIilab.sztaki.hu
Homepage: http://www.sztaki.hu/~ronyai
Csaba István Sidló
Csaba István Sidló
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 111
Phone: +36 1 279 6283
E-mail: sidlo.csabaEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Péter Szabó
Péter Szabó
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 109
Phone: +36 1 279 6119
E-mail: szabo.peterEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Regina Szeifert
E-mail: szeifertEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Zoltán Zvara
Address: 1111 Budapest, Lágymányosi u. 11.
Mail address: zoltan.zvara@sztaki.mta.hu
Room number: L 512
Phone: +36 1 279 6238
E-mail: zvara.zoltanEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Judit Ács
Judit Ács
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 318
E-mail: acs.juditEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Homepage: http://avalon.aut.bme.hu/~judit/

Students

Gábor Hermann
Gábor Hermann
Address: 1111 Budapest, Lágymányosi u. 11.
Room number: L 108
Phone: +36 30 695 6321
E-mail: hermann.gabor.dmsEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu

Important publications

2018.

ENTICE VM Image Analysis and Optimised Fragmentation

2016.

Life without dUTPase
Authors: Kerepesi, Csaba; Szabó, Judit E.; Papp-Kádár, Veronika; Dobay, Orsolya; Szabó, Dóra; Grolmusz, Vince; G. Vertessy, Beata
Date: 2016. 11. 14.

2014.

Hidden translation and translating coset in quantum computing
Authors: Friedl, Katalin; Ivanyos, Gábor; Magniez, F.; Santha, M.; Sen, P.
Date: 2014.
Deterministic polynomial factoring and association schemes
Authors: Arora, Manuel; Karpinski, Marek; Saxena, Nitin
Date: 2014.
Quantum computation of discrete logarithms in semigroups
Authors: Childs, Andrew M.; Ivanyos, Gábor
Date: 2014. 07. 08.

2013.

Hidden symmetry subgroup problems
Authors: Decker, Thomas; Ivanyos, Gábor; Santha, Miklos; Wocjan, Pawel
Date: 2013.
Miből lesz a robot MÁV-pénztáros
Authors: Nemeskey, Dávid; Recski, Gábor; Zséder, Attila
Date: 2013. 01. 07.
One-Sided Error QMA with Shared EPR Pairs -- A Simpler Proof
Authors: Pereszlényi, Attila
Date: 2013. 06.

2012.

Trading GRH for algebra: algorithms for factoring polynomials and related structures
Authors: Ivanyos, Gábor; Karpinski, Marek; Rónyai, Lajos; Saxena, Nitin
Date: 2012.
The grand challenge of computer Go: Monte Carlo Tree Search and Extensions
Authors: Gelly, Sylvain; Kocsis, Levente; Schoenauer, Marc; Sebag, Michèle; Silver, David; Szepesvári, Csaba; Teytaud, Olivier
Date: 2012. 03.

2011.

Multivalued generalizations of the Frankl-Pach Theorem
Authors: Rónyai, Lajos; Hegedűs, Gábor
Date: 2011. 08. 04.

2010.

A Hungarian NP Chunker
Authors: Recski, Gábor; Varga, Dániel
Date: 2010.
On optimal completions of incomplete pairwise comparison matrices

2009.

Algebraic properties of modulo q complete l-wide families
Authors: Felszeghy, Bálint; Hegedűs, Gábor; Rónyai, Lajos
Date: 2009.

2008.

Constructions for quantum computing with symmetrized gates
Authors: Ivanyos, Gábor; Nagy, Attila B.; Rónyai, Lajos
Date: 2008.
Graphs representimg sets of functional dependencies
Authors: Demetrovics, János; Molnár, András; Thalheim, Berhard
Date: 2008.