PostDoc position (3 years) at Alpen-Adria Universität Klagenfurt, Austria

Institute of Information Technology, Multimedia Communication (MMC) Group (Prof. Hermann Hellwagner)

The MMC group at Klagenfurt University, Austria, is offering a full, three-year PostDoc position (available now) in a basic research project called CONCERT (http://www.concert-project.org/). Important facts about the project are given in the following. We seek candidates with strong expertise in one or several of the following areas: Multimedia Communication, Machine Learning, Multi-Agent Systems, Uncertainty in Artificial Intelligence (Probabilistic Models, Bayesian Networks, Game Theory). Applications should be sent to Prof. Hermann Hellwagner <hermann.hellwagner@aau.at>.

Title: A Context-Adaptive Content Ecosystem Under Uncertainty (CONCERT)
Duration: 3 years
Websitehttp://www.concert-project.org/

Partners

  • University College London (UK): Prof. George Pavlou, Dr. Wei Chai (Coordinator)
  • University of Surrey (UK): Dr. Ning Wang
  • Ecole Polytechnique Fédérale de Lausanne (CH): Prof. Pascal Frossard
  • Alpen-Adria-Universität (AAU) Klagenfurt (AT): Prof. Hermann Hellwagner

Project character and funding

CONCERT is an international basic research project accepted as a CHIST-ERA project under the Call for Proposals “Context- and Content-Adaptive Communication Networks”. CHIST-ERA is an ERANET consortium, part of the EC FP7 Programme “Future and Emerging Technologies (FET)” (http://www.chistera.eu/). Funding is provided by the national basic research funding agencies, in Austria the FWF (Austrian Science Fund).

Abstract

The objective of CONCERT is to develop a content ecosystem encompassing all rele- vant players which will be able to perform intelligent content and network adaptation in highly dynamic conditions under uncertainty. This ecosystem will have as basis emerging information-/content-centric networking technologies which support in- trinsic in-network content manipulation. The project will consider uncertainty aspects in the following two application domains: (1) social media networks based on user generated content and (2) CDN-like professional content distribution (Content Distri- bution Networks). Three dimensions of uncertainties will be addressed: (1) heteroge- neous and changing service requirements by end users, (2) threats that may have adverse impacts on the content ecosystem, as well as (3) opportunities that can be exploited by specific players in order to have their costs reduced … [read more]

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DASH@ITEC at CES’14, CCNC’14 and MPEG107

Booth & Demos at CES 2014 in Las Vegas, NV, USA

You can meet us at the CES show & fair in Las Vegas, NV, USA from Jan. 8th to 10th. You can visit us at our booth and demo location at at the IEEE Booth (#30242) in the South Hall of the Las Vegas Convention Center on Jan. 9-10, 2014. Christian Timmerer and Benjamin Rainer will present our work within the EU FP7 project Social Sensor and our MPEG-DASH work.

You can also meet bitmovin at CES: http://www.bitmovin.net/blog-details/meet-us-at-ces-2014-in-las-vegas-mpeg-meeting-in-san-jose.html

Demo @ CCNC 2014 in Las Vegas, NV, USA

Straight after the CES show, we are present at the IEEE Consumer Communication & Networking Conference (CCNC) on Jan. 11, 2014. You can visit our Demo:

Real-time Multimedia Streaming in Unstructured Peer-to-Peer Networks

Description: Our approach is based on semantic search in unstructured peer-to-peer (P2P) networks for querying content in mobile ad hoc networks and MPEG-DASH for actually streaming the real-time multimedia.

Authors: Benjamin Rainer (Alpen-Adria-Universität Klagenfurt, Austria); Christian Timmerer (Alpen-Adria-Universität Klagenfurt, Austria); Matthias Klusch (DFKI, Germany); Patrick Kapahnke (DFKI, Germany)

URL: http://ccnc2014.ieee-ccnc.org/content/demonstration

107th MPEG Meeting in San Jose, CA, USA

Last but not least you will find us at the 107th MPEG Meeting in San Jose, CA, USA from Jan. 12 to 17, 2014.

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MPEG DASH Conformance versus Client Performance

How to double your effective media stream bitrates, by www.bitmovin.com

MPEG DASH was created to deal with a highly fragmented media streaming ecosystem struggling with fragmentation and lack of interoperability of many proprietary solutions. Still that fragmentation has not stopped video to grow to being over half of mobile, and almost three-quarters of fixed traffic (YE2012). But this situation …

Read more in the bitmovin technology blog …

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Jobs in Multimedia and DASH @ bitmovin

bitmovin GmbH is providing industry leading over the top streaming solutions and server encoding systems, enabling best-quality media experience for the user. Our main expertise is technology related to cutting-edge standards and multimedia technologies, which is the basis for our cloud-based transcoding services and high-quality client products. As part of our expansion we are looking for additional employees to support our team in our offices in Klagenfurt (Austria):

  • Senior Software Engineer (m/f)
  • Junior Software Engineer (m/f)

Your field of responsibility:

  • Design and development of software systems for multimedia andstreaming purposes in cloud-, Web- and mobile environments
  • Usage of cutting-edge standards & technology
  • Development of new and innovative products

Our offering:

  • Working in a young and innovative team with international customers in a worldwide market
  • Variety of training opportunities within the company
  • Salery above average & collective agreement

More Information: www.bitmovin.net/jobs.html

We look forward to your application (CV, references and photo) via e-mail to jobs@bitmovin.net

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New Mirrors of the Distributed DASH Dataset

We are pleased to welcome the new mirrors at Academia Sinica (Taiwan) and University of Massachusetts Amherst (USA) to our distributed DASH (D-DASH) dataset. You can find more information on the D-DASH dataset on our website at: Distributed DASH Dataset Description

Currently we have the following eight active mirrors of the D-DASH dataset:

  • ITEC, MMC Group Alpen-Adria Universitaet Klagenfurt, Austria
  • GPAC Project Telecom ParisTech, France
  • QUALINET Database Czech Technical University, Czech Republic
  • Internet Media Group Politecnico di Torino, Italy
  • Medialab TEI Crete, Crete
  • TNO, Media & Networking Services Group TNO Netherlands, Netherlands
  • Academia Sinica Academic, Taiwan
  • University of Massachusetts Amherst, USA

D-DASH is open for everyone, add your site:

We greatly appreciate new sites for the D-DASH dataset, so everybody is welcome to join D-DASH. Therefore, only a few steps are necessary, as described >>here<<

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DASH over ICN/CCN-enabled libdash & Updates

We are happy to provide a DASH over ICN/CCN-enabled version of libdash. We also contributed our DASH over ICN/CCN approach to the ICN Research Group (ICNRG), presented in this input draft: draft-video-streaming-over-ICN-00.txt and the associated slides.

You can find more information, build-instructions and test setups on this website (here) as well as in the DASH over ICN-branch of the libdash repository on github: https://github.com/bitmovin/libdash/tree/CCN. There you can also find instructions for streaming DASH content via CCN from (1) a local repository and (2) from the public available CCN Node ccn.bitmovin.net

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Vote for libdash as Best MPEG-DASH Product

Please help us and vote for our libdash library as best MPEG-DASH product in the reader’s choice award voting of Streaming Media. As you probably know, libdash is the reference library of the MPEG-DASH standard and is the enabler for DASH on various platforms.

You can find the voting here: http://www.streamingmedia.com/ReadersChoice/2013/Vote.aspx

Thanks a lot!

The libdash Team

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SVC Bitstream Reordering for SVC-DASH

Michael Grafl from the ITEC-Team has released his new tools for Scalable Video Coding (SVC) bitstream reordering to support Dynamic Adaptive Streaming over HTTP (DASH).

  • Demultiplexer for SVC-DASH. Splits the SVC bitstream into chunks, one per layer. Also generates an MPD. This tool is deployed at the server.
  • Re-Multiplexer for SVC-DASH. Reorders SVC layer chunks into a single SVC bitstream. This tool is deployed at the client (after the DASH client, before the SVC decoder).

Find more information at the SVC Demux & Mux page as well as on Sourceforge.

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Adaptive Video over ICN @ ICNRG, IETF’87

We presented our adaptive video over ICN research in the ICNRG at the 87th IETF Meeting in Berlin. Here you can find our presentation:

Title: Adaptive Video over ICN

Authors: Stefan Lederer, Christian Timmerer, Cedric Westphal and Christopher Mueller

Abstract: This document presents the usage of Information Centric Networks (ICN) for adaptive multimedia streaming and identifies problems which have to be considered for such applications. As solution DASH over ICN is presented, which leverages the recent ISO/IEC MPEG Dynamic Adaptive Streaming over HTTP (DASH) standard. DASH over ICN offers the possibility to transfer data from multiple sources as well as over multiple links in parallel, which is definitely an important feature, e.g., for mobile devices offering multiple network links. In addition to this, the named multimedia content is routed and cached efficiently by the underlying network.

Adaptive Video Streaming over ICN Draft: : http://users.soe.ucsc.edu/~cedric/papers/draft-video-streaming-over-ICN-00.txt
ICNRG: http://trac.tools.ietf.org/group/irtf/trac/wiki/icnrg

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DASH/2.0 @ ICME 2013

Title: Dynamic Adaptive Streaming over HTTP/2.0

Authors: Christopher Mueller, Stefan Lederer, Christian Timmerer and Hermann Hellwagner

Abstract: MPEG Dynamic Adaptive Streaming over HTTP (DASH) is a new streaming standard that has been recently ratified as an international standard (IS). In comparison to other streaming systems, e.g., HTTP progressive download, DASH is able to handle varying bandwidth conditions providing smooth streaming. Furthermore, it enables NAT and Firewall traversal, flexible and scalable deployment as well as reduced infrastructure costs due to the reuse of existing Internet infrastructure components, e.g., proxies, caches, and Content Distribution Networks (CDN). Recently, the Hypertext Transfer Protocol Bis (httpbis) working group of the IETF has officially started the development of HTTP 2.0. Initially three major proposals have been submitted to the IETF i.e., Googles’ SPDY, Microsofts’ HTTP Speed+Mobility and Network-Friendly HTTP Upgrade, but SPDY has been chosen as working draft for HTTP 2.0. In this paper we implemented MPEG-DASH over HTTP 2.0 (i.e., SPDY), demonstrating its potential benefits and drawbacks. Moreover, several experimental evaluations have been performed that compare HTTP 2.0 with HTTP 1.1 and HTTP 1.0 in the context of DASH. In particular, the protocol overhead, the performance for different round trip times, and DASH with HTTP 2.0 in a lab test scenario has been evaluated in detail.

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