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Institution

Deutsche Telekom

CompanyWelwyn Garden City, United Kingdom
About: Deutsche Telekom is a company organization based out in Welwyn Garden City, United Kingdom. It is known for research contribution in the topics: Telecommunications network & Terminal (electronics). The organization has 3473 authors who have published 5208 publications receiving 65429 citations. The organization is also known as: DTAG & German Telecom.


Papers
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Proceedings ArticleDOI
07 May 2011
TL;DR: Comparing the influence of the display shape on user behavior and user experience between flat and cylindrical displays indicates that people move more in the vicinity of cylINDrical displays and that there is no longer a default position when it comes to interaction.
Abstract: Non-planar screens, such as columns, have been a popular means for displaying information for a long time. In con-trast to traditional displays their digital counterparts are mainly flat and rectangular due to current technological constraints. However, we envision bendable displays to be available in the future, which will allow for creating new forms of displays with new properties. In this paper we ex-plore cylindrical displays as a possible form of such novel public displays. We present a prototype and report on a user study, comparing the influence of the display shape on user behavior and user experience between flat and cylindrical displays. The results indicate that people move more in the vicinity of cylindrical displays and that there is no longer a default position when it comes to interaction. As a result, such displays are especially suitable to keep people in motion and to support gesture-like interaction.

67 citations

Proceedings ArticleDOI
07 May 2011
TL;DR: CapWidgets bring back physical controls to off-the-shelf multi-touch surfaces as found in mobile phones and tablet computers and shows that user performance and preferences are not automatically in favor of tangible widgets and careful design is necessary to validate their properties.
Abstract: We present CapWidgets, passive tangible controls for capacitive touch screens. CapWidgets bring back physical controls to off-the-shelf multi-touch surfaces as found in mobile phones and tablet computers. While the user touches the widget, the surface detects the capacitive marker on the widget's underside. We study the relative performance of this tangible interaction with direct multi-touch interaction and our experimental results show that user performance and preferences are not automatically in favor of tangible widgets and careful design is necessary to validate their properties.

67 citations

Patent
12 Mar 1996
TL;DR: Beschrieben wird ein Verfahren und eine Einrichtung zur Ermittlung von dynamischen Verkehrsinformationen bzw Verkehrsereignissen Dabei werden verkehrrelevante Daten von Endgeraten im Fahrzeug automatisch, per Fernabfrage oder manuell aufgenommen and zusammen with einer Ortsinformation uber ein verbreitetes, mobiles Telekommun
Abstract: Beschrieben wird ein Verfahren und eine Einrichtung zur Ermittlung von dynamischen Verkehrsinformationen bzw Verkehrsereignissen Dabei werden verkehrsrelevante Daten von Endgeraten im Fahrzeug automatisch, per Fernabfrage oder manuell aufgenommen und zusammen mit einer Ortsinformation uber ein verbreitetes, mobiles Telekommunikationsnetz, zB GSM, direkt an weitere Mobilfunkteilnehmer und/oder eine ubergeordnete Dienstezentrale ubermittelt In der Dienstezentrale werden die eingehenden Daten weiterverarbeitet und an ausgewahlte Endgerate und/oder Dritte weitergegeben Zum anderen konnen von einer Verkehrsleitzentrale auch Abfrageereignisse vordefiniert werden, zB Bremsverhalten, und per Broadcast uber Mobilfunk in regional beschrankte Bereiche an Verkehrsteilnehmer bzw deren Endgerate ubermittelt werden, die dann unmittelbar den Verkehrsflus 'beobachten' und eintretende Abfrageereignisse sofort wieder per Mobilfunk an die Dienstezentrale zuruckmelden

66 citations

Proceedings ArticleDOI
13 May 2009
TL;DR: The “price of anarchy” is shown not to be an inherent feature of games that incorporate pricing mechanisms, but merely a misconception that often stems from arbitrary choice of game parameters.
Abstract: The general problem of Nash equilibrium design is investigated from an optimization perspective. Within this context, a specific but fairly broad class of noncooperative games are considered that have been applied to a variety of settings including network congestion control, wireless uplink power control, and optical power control. The Nash equilibrium design problem is analyzed under various knowledge assumptions (full versus limited information) and design objectives (QoS versus utility maximization). Among other results, the “price of anarchy” is shown not to be an inherent feature of games that incorporate pricing mechanisms, but merely a misconception that often stems from arbitrary choice of game parameters. Moreover, a simple linear pricing is sufficient for design of Nash equilibrium according to a chosen global objective for a general class of games and under suitable information assumptions.

66 citations

Proceedings ArticleDOI
04 Dec 2009
TL;DR: The proposed acoustic topic model shows promising results by outperforming the Latent Perceptual Indexing method in classifying onomatopoeia descriptions and semantic descriptions in audio description classification tasks using Support Vector Machine on the BBC database.
Abstract: A new algorithm for content-based audio information retrieval is introduced in this work. Assuming that there exist hidden acoustic topics and each audio clip is a mixture of those acoustic topics, we proposed a topic model that learns a probability distribution over a set of hidden topics of a given audio clip in an unsupervised manner. We use the Latent Dirichlet Allocation (LDA) method for the topic model, and introduce the notion of acoustic words for supporting modeling within this framework. In audio description classification tasks using Support Vector Machine (SVM) on the BBC database, the proposed acoustic topic model shows promising results by outperforming the Latent Perceptual Indexing (LPI) method in classifying onomatopoeia descriptions and semantic descriptions.

66 citations


Authors

Showing all 3475 results

NameH-indexPapersCitations
Jörg Müller6740715282
Anja Feldmann6734017422
Yuval Elovici6254414451
Lior Rokach5535719989
Pan Hui5246817724
Hartmut G. Roskos504349643
Wolfgang Haase5062411634
Shlomi Dolev4851610435
Jean-Pierre Seifert452987516
Stefan Schmid455619088
Fabian Schneider441647437
Karsten Buse433947774
Tansu Alpcan432937840
Florian Metze423187148
Christian Bauckhage422858313
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20232
20227
202139
202061
201984
201897