Secure Business Austria » Uncategorized http://www.sba-research.org Thu, 02 Feb 2012 10:39:35 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Guest talk: John Tait on Semantic Search: New Developments http://www.sba-research.org/2012/01/31/guest-talk-john-tait-on-semantic-search-new-developments/ http://www.sba-research.org/2012/01/31/guest-talk-john-tait-on-semantic-search-new-developments/#comments Tue, 31 Jan 2012 07:49:54 +0000 eweippl http://www.sba-research.org/?p=2049 Semantic Search: New Developments

John Tait, Jan 31, 14:30 SBA Research

The term Semantic Search is becoming fashionable, but there are a number of problems with the term.

1) There are at least two forms of semantic search. One is based more-or-less hand programmed knowledge sources, like domain ontologies or thesauri. The other is based on emergent properties of the data being searched, using techniques like Latent Semantic Analysis or clustering. It is far from clear that the results of applying the two approaches are similar or even compatible.

2) It is often assumed that semantic search is in some sense different from surface text search: which implies that normal old-fashioned Google search (for example) is equivalent to random string search, when of course the underlying statistics depend critically on the fact that both the queries and corpora are natural language (English or German) words with underlying semantics.

3) Semantic Search depends critically on text annotation processes during indexing: but these are potentially corruptable by malefactors. How can this be prevented?

The seminar will explore these three issues, and attempt to find a better definition of the term semantic search and to identify some ways forward.

]]> http://www.sba-research.org/2012/01/31/guest-talk-john-tait-on-semantic-search-new-developments/feed/ 0 IEEE Spectrum: A Cloud you can trust http://www.sba-research.org/2012/01/25/ieee-spectrum-a-cloud-you-can-trust/ http://www.sba-research.org/2012/01/25/ieee-spectrum-a-cloud-you-can-trust/#comments Wed, 25 Jan 2012 10:52:04 +0000 eweippl http://www.sba-research.org/?p=2060 “In a paper they presented at the Usenix Security Symposium in August, Martin Mulazzani and his colleagues at SBA Research [PDF], in Vienna, described several ways in which deduplication could be used to access files uploaded to Dropbox. ” (quoted verbatim from Christian Cachin et al., A Cloud you can Trust, IEEE Spectrum, Dec 2011)

]]> http://www.sba-research.org/2012/01/25/ieee-spectrum-a-cloud-you-can-trust/feed/ 0 Book Review on Android Forensics http://www.sba-research.org/2012/01/17/book-review-on-android-forensics/ http://www.sba-research.org/2012/01/17/book-review-on-android-forensics/#comments Tue, 17 Jan 2012 17:52:40 +0000 eweippl http://www.sba-research.org/?p=2047 Manuel Leithner’s book review was just published (more…)

]]> http://www.sba-research.org/2012/01/17/book-review-on-android-forensics/feed/ 0 Artikel zum IKT-Sicherheitsseminar http://www.sba-research.org/2012/01/12/artikel-zum-ikt-sicherheitsseminar/ http://www.sba-research.org/2012/01/12/artikel-zum-ikt-sicherheitsseminar/#comments Thu, 12 Jan 2012 08:59:50 +0000 sschrittwieser http://www.sba-research.org/?p=2042 Die aktuelle Ausgabe der Zeitschrift Öffentliche Sicherheit enthält einen Artikel zum IKT-Sicherheitsseminar, wo Markus Klemen einen Vortrag zum Thema Soziale Netzwerke gehalten hat.

]]> http://www.sba-research.org/2012/01/12/artikel-zum-ikt-sicherheitsseminar/feed/ 0 Stefan Katzenbeisser at 28C3 http://www.sba-research.org/2011/12/28/stefan-katzenbeisser-at-28c3/ http://www.sba-research.org/2011/12/28/stefan-katzenbeisser-at-28c3/#comments Wed, 28 Dec 2011 19:20:57 +0000 eweippl http://www.sba-research.org/?p=2032 The key researcher Stefan Katzenbeisser gave a talk at 28C3 (derStandard.at, heise.de, futurezone.at, diePresse.com, reuters.com, telegraph.co.uk, bbc.co.uk)

]]> http://www.sba-research.org/2011/12/28/stefan-katzenbeisser-at-28c3/feed/ 0 Femtech Praktika: Katharina Krombholz http://www.sba-research.org/2011/12/16/femtech-praktika-katharina-krombholz/ http://www.sba-research.org/2011/12/16/femtech-praktika-katharina-krombholz/#comments Fri, 16 Dec 2011 12:08:39 +0000 eweippl http://www.sba-research.org/?p=2016 Ein Praktikumsantrag im Rahmen des Femtech-Programms (http://www.ffg.at/femtech-praktika) wurde angenommen. Katharina Krombholz wird im Jänner ein Praktikum und eine Diplomarbeit zum Sicherheit in Sozialen Netzwerken beginnen und bestehende Forschungsarbeiten unterstützen.

]]> http://www.sba-research.org/2011/12/16/femtech-praktika-katharina-krombholz/feed/ 0 Guest lecture: Johann Steszgal on Intelligent Transportation Systems http://www.sba-research.org/2011/12/15/guest-lecture-johann-steszgal-on-intelligent-transportation-systems/ http://www.sba-research.org/2011/12/15/guest-lecture-johann-steszgal-on-intelligent-transportation-systems/#comments Thu, 15 Dec 2011 12:46:13 +0000 eweippl http://www.sba-research.org/?p=2021 Johann Steszgal (ETSI ITS WG5) gives a lecture on Security Issues of IPv6 Communications in Cooperative Intelligent Transportation Systems for students of our class Organizational Aspects of Security.

]]> http://www.sba-research.org/2011/12/15/guest-lecture-johann-steszgal-on-intelligent-transportation-systems/feed/ 0 NII Joint Research Seminar http://www.sba-research.org/2011/12/15/nii-joint-research-seminar/ http://www.sba-research.org/2011/12/15/nii-joint-research-seminar/#comments Thu, 15 Dec 2011 10:45:06 +0000 eweippl http://www.sba-research.org/?p=2013 Our researchers plan future research in cooperation with NII:

  • Dr. N. Sonehara,  Information and Society Research Director at NII and Project Reader at ROIS/TRIC.
  • Dr. Y. Ichifuji, ROIS/TRIC
  • Dr. I. Echizen, Associate Professor at NII.
  • Dr. S. Wohlgemuth, Associate Professor at NII and ROIS/TRIC

 

]]> http://www.sba-research.org/2011/12/15/nii-joint-research-seminar/feed/ 0 Stefan Katzenbeisser: Guest lecture on ERM and DRM http://www.sba-research.org/2011/12/15/stefan-katzenbeisser-guest-lecture-on-erm-and-drm/ http://www.sba-research.org/2011/12/15/stefan-katzenbeisser-guest-lecture-on-erm-and-drm/#comments Thu, 15 Dec 2011 09:44:44 +0000 eweippl http://www.sba-research.org/?p=2019 Key researcher Stefan Katzenbeisser gives a  guest lecture on enterprise rights management for students of our class Advanced Internet Security.

]]> http://www.sba-research.org/2011/12/15/stefan-katzenbeisser-guest-lecture-on-erm-and-drm/feed/ 0 Guest lectures: Sonehara, Ichifuji, Echizen & Wohlgemuth http://www.sba-research.org/2011/12/14/guest-lectures-nii/ http://www.sba-research.org/2011/12/14/guest-lectures-nii/#comments Wed, 14 Dec 2011 13:42:12 +0000 eweippl http://www.sba-research.org/?p=2010 Starting at 3pm

Dr. N. Sonehara, “Data-centric Socio-Informatics Supporting Public Policy Decision Making, NII and ROIS/TRIC.
Dr. Y. Ichifuji, “Web Data Driven Information Circulation and Its application of Resilience Evaluation”, ROIS/TRIC
Dr. I. Echizen, “Multimedia Location Privacy Control Mechanism”, NII
Dr. S. Wohlgemuth, “Resilient Social System Design Methods”, ROIS/TRIC, Associate Professor at NII / ROIS

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