Deutsche Telekom

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 & Signal. The organization has 3473 authors who have published 5208 publications receiving 65429 citations. The organization is also known as: DTAG & German Telecom.

Chapter 14 – Evaluation of Multimodal Interfaces for Ambient Intelligence

Abstract: Publisher Summary This chapter reviews the assessment and evaluation principles applied to multimodal interfaces for intelligent environments. On the basis of a new taxonomy of quality aspects, quantitative metrics are identified that address different aspects of user and system performance, quality, usability, and acceptability. Example applications are presented for multimodal interfaces to domestic devices, focusing on information presentation—for example, via an embodied conversational agent. Furthermore, it is shown which methods are already available and which ones are still missing to support an efficient development of ambient intelligence systems that are well accepted by their users. This chapter provides empirical results and illustrates definitions of factors and aspects as well as information about their relationships. On this common ground, comparable evaluation can be performed, its results can be identified and categorized, and metrics for specific purposes (or missing metrics) can be identified. Because current systems cover a wide range of applications and domains, it is anticipated that an open framework will be needed to enable meaningful evaluation for specific contexts.

Method and system for terminal device-based communication between third-party applications and an electronic wallet

Abstract: The invention relates to a method and a system for terminal device-based communication between third-party applications and an electronic wallet. The method comprises the following steps: (a) the third-party application establishes a connection to an Internet service, wherein the connection requires a transmission of data to the Internet service; (b) the third-party application receives a query aimed at the transmission of the data specified from the Internet service; (c) the third-party application passes the query received from the Internet service in step (b) to the electronic wallet; (d) the electronic wallet processes the query and generates a corresponding response; (e) the response from the electronic wallet is forwarded to the Internet service; (f) the third-party application receives a confirmation of the successful forwarding of the response to the Internet service in accordance with step (e).

MADServer: a server architecture for mobile advanced delivery

Abstract: Rapid increases in cellular data traffic demand creative alternative delivery vectors for data. Despite the conceptual attractiveness of mobile data offloading, no concrete web server architectures integrate intelligent offloading in a production-ready and easily deployable manner without relying on vast infrastructural changes to carriers' networks. Delay-tolerant networking technology offers the means to do just this. We introduce MADServer, a novel DTN-based architecture for mobile data offloading that splits web content among multiple independent delivery vectors based on user and data context. It enables intelligent data offloading, caching, and querying solutions which can be incorporated in a manner that still satisfies user expectations for timely delivery. At the same time, it allows for users who have poor or expensive connections to the cellular network to leverage multi-hop opportunistic routing to send and receive data. We also present a preliminary implementation of MADServer and provide real-world performance evaluations.

Non-Linear Beam Model for Tracking Large Deformations

Abstract: In this paper we investigate physics-based plane beam model, frequently used in mechanical and civil engineering, to track large non-linear deformations in images. Such models do not only contribute to robust and precise tracking, in the presence of clutter and partial occlusions, but also allow to compute the forces that produce observed deformations. We verify the correctness of the recovered forces by using them in a simulation and compare the results to the original image displacements. We apply this method to track deformations of the pole vault, the rat whiskers and the car antenna.

A Flexible Approach to Service Management-Related Service Description in SOAs

Abstract: In order for service-oriented architectures (SOAs) to deliver their true value for the business, e.g. flexibility and transparency, a holistic service management needs to be set up in the enterprise. To perform all the service management tasks efficiently heavy support by automated processes and tools is necessary. This article describes a service description approach that is based on OWL-S (Web Ontology Language for Services) and focuses on nonfunctional criteria. It starts with the necessary service management tasks and explains non-functional data elements and statements for its automated support. After covering related work it explains the proposed flexible extension to OWL-S. This extension is twofold. Firstly, simple service lifecycle elements are added using the normal extension mechanism. Secondly for adding QoS (Quality of Service) capabilities, the approach combines this extension mechanism with UML (Unified Modeling Language) Profile for QoS. A prototype delivers the proof-of-concept.