% Year: 2014 % Encoding: utf-8 @Article{timmerer2014_jsac, author = {Timmerer, Christian and Griwodz, Carsten and Begen, Ali Cengiz and Stockhammer, Thomas and Girod, Bernd}, journal = {IEEE Journal on Selected Areas in Communications}, title = {Guest Editorial: Adaptive Media Streaming}, year = {2014}, month = {apr}, number = {4}, pages = {681-683}, volume = {32}, address = {New York, NY, USA}, keywords = {Adaptive Media Streaming, DASH}, language = {EN}, pdf = {https://www.itec.aau.at/bib/files/06774588.pdf}, publisher = {IEEE Communications Society} } @Article{timmerer2014_computer, author = {Timmerer, Christian and Rainer, Benjamin}, journal = {IEEE Computer}, title = {The Social Multimedia Experience}, year = {2014}, issn = {0018-9162}, month = {mar}, number = {3}, pages = {67-69}, volume = {47}, abstract = {Inter-destination multimedia synchronization and quality of experience are critical to the success of social TV, which integrates television viewing with social networking.}, address = {Los Alamitos, CA, USA}, keywords = {Quality of Experience, Inter-Destination Media Synchronization, Social TV, DASH, IDMS, QoE}, language = {EN}, pdf = {https://www.itec.aau.at/bib/files/timmerer-sme-mar13.pdf}, publisher = {IEEE Computer Society} } @InProceedings{lux2014user, author = {Lux, Mathias and Xhura, Desara and Kopper, Alexander}, booktitle = {MultiMedia Modeling}, title = {User Intentions in Digital Photo Production: A Test Data Set}, year = {2014}, address = {Heidelberg, New York}, editor = {Currin, C and Hopfgartner, F and Hurst, W and Johansen, H and Lee, H and O’Connor, N}, month = {jan}, pages = {172--182}, publisher = {Springer International Publishing}, series = {LNCS}, abstract = {Taking a photo with a digital camera or camera phone is a process triggered by a certain motivation. People want for instance to document the progress of a task, others want to preserve a moment of joy. In this contribution we present an openly available dataset with 1,309 photos along with annotations specifying the intentions of the photographers. This data set is the result of a large survey on Flickr and shall provide a common basis for joint research on user intentions in photo production. The survey data was validated using Amazon Mechanical Turk. Besides discussing the process of creating the data set we also present information of the structure and give statistics on the data set.}, language = {EN}, location = {Dublin, Ireland}, talkdate = {2014.01.09}, talktype = {poster} } @InCollection{lux2014lire, author = {Lux, Mathias and Macstravic, Glenn}, booktitle = {MultiMedia Modeling}, publisher = {Springer}, title = {The LIRE Request Handler: A Solr Plug-In for Large Scale Content Based Image Retrieval}, year = {2014}, address = {Heidelberg, New York}, editor = {Gurrin, C and Hopfgartner, F and Hurst, W and Johansen, H and Lee, H and O’Connor, N}, month = {jan}, pages = {374--377}, language = {EN} } @InProceedings{ZaharievaSEM2014, author = {Zaharieva, M and Riegler, M and Del Fabro, M}, booktitle = {Working Notes Proceedings of the MediaEval 2014 Workshop}, title = {Multimodal Synchronization of Image Galleries}, year = {2014}, address = {Vol-1263}, editor = {De Natale, F and Mezaris, V and Conci, N}, month = {oct}, pages = {1--2}, publisher = {CEUR-WS}, language = {EN}, location = {Barcelona, Spain}, talkdate = {2014.10.16}, talktype = {registered} } @InProceedings{ZaharievaSED2014, author = {Zaharieva, M and Schopfhauser, M and Del Fabro, M and Zeppelzauer, M}, booktitle = {Working Notes Proceedings of the MediaEval 2014 Workshop}, title = {Clustering and Retrieval of Social Events in Flickr}, year = {2014}, address = {Vol-1263}, editor = {Petkos, G and Papadopoulos, S and Rizzo, G and Mezaris, V and Troncy, R}, month = {oct}, pages = {1--2}, publisher = {CEUR-WS}, language = {EN}, location = {Barcelona, Spain}, talkdate = {2014.10.16}, talktype = {registered} } @InProceedings{XiaoxiaoICME2014, author = {Luo, Xiaoxiao and Xu, Qing and Sbert, Mateu and Schoeffmann, Klaus}, booktitle = {Multimedia and Expo (ICME), 2014 IEEE International Conference on}, title = {Video Navigation on Tablets with Multi-Touch Gestures}, year = {2014}, address = {Los Alamitos, CA, USA}, editor = {Ebrahimi, Touradj and Li, Shipeng and Wang, Houjun and Yang, Jie}, month = {jul}, pages = {6}, publisher = {IEEE}, doi = {10.1109/ICMEW.2014.6890560}, language = {EN}, location = {Chengdu, China}, talkdate = {2014.7.18}, talktype = {registered} } @InProceedings{TimmererBegen2014, author = {Timmerer, Christian and Begen, Ali Cengiz}, booktitle = {Proceedings of the 2014 ACM Multimedia Conference}, title = {Over the Top Content Delivery: State of the Art and Challenges Ahead}, year = {2014}, address = {New York, NY, USA}, editor = {Hua, Kien and Rui, Yong and Steinmetz, Ralf and Hanjalic, Alan and Natsev, Apostol and Zhu, Wenwu}, month = {nov}, pages = {1231--1232}, publisher = {ACM}, abstract = {In this tutorial we present state of the art and challenges ahead in over-the-top content delivery. It particular, the goal of this tutorial is to provide an overview of adaptive media delivery, specifically in the context of HTTP adaptive streaming (HAS) including the recently ratified MPEG-DASH standard. The main focus of the tutorial will be on the common problems in HAS deployments such as client design, QoE optimization, multi-screen and hybrid delivery scenarios, and synchronization issues. For each problem, we will examine proposed solutions along with their pros and cons. In the last part of the tutorial, we will look into the open issues and review the work-in-progress and future research directions.}, doi = {10.1145/2647868.2654849}, isbn13 = {978-1-4503-3063-3}, keywords = {adaptive media streaming, dynamic adaptive streaming over HTTP, MPEG-DASH, over-the-top video video}, language = {EN}, location = {Orlando, FL, USA}, pdf = {https://www.itec.aau.at/bib/files/tut02-timmerer.pdf}, slides = {https://www.itec.aau.at/bib/files/ACM_MM_Tutorial_11_2014.pdf}, talkdate = {2014.11.03}, talktype = {registered} } @InCollection{Timmerer2014_QuASE, author = {Timmerer, Christian and Waltl, Markus and Rainer, Benjamin and Murray, Niall}, booktitle = {Quality of Experience: Advanced Concepts, Applications and Methods}, publisher = {Springer}, title = {Sensory Experience: Quality of Experience Beyond Audio-Visual}, year = {2014}, address = {Heidelberg}, editor = {Möller, Sebastian and Raake, Alexander}, month = {mar}, pages = {351-365}, abstract = {This chapter introduces the concept of Sensory Experience which aims to define the Quality of Experience (QoE) going beyond audio-visual content. In particular, we show how to utilize sensory effects such as ambient light, scent, wind, or vibration as additional dimensions contributing to the quality of the user experience. Therefore, we utilize a standardized representation format for sensory effects that are attached to traditional multimedia resources such as audio, video, and image contents. Sensory effects are rendered on special devices (e.g., fans, lights, motion chair, scent emitter) in synchronization with the traditional multimedia resources and shall stimulate also other senses than hearing and seeing with the intention to increase the Quality of Experience (QoE), in this context referred to as Sensory Experience.}, keywords = {Quality of Experience, Quality of Sensory Experience, MPEG-V, Sensory Effects}, language = {EN} } @Article{Timmerer2014_MPEGColumnMar, author = {Timmerer, Christian}, journal = {ACM SIGMultimedia Records}, title = {MPEG Column: 107th MPEG Meeting}, year = {2014}, issn = {1947-4598}, month = {mar}, number = {1}, pages = {1-2}, volume = {6}, address = {New York, NY, USA}, language = {EN}, publisher = {ACM}, url = {http://records.sigmm.ndlab.net/2014/02/mpeg-column-107th-mpeg-meeting/} } @Article{Timmerer2014_MMC, author = {Timmerer, Christian and Waltl, Markus and Rainer, Benjamin and Lederer, Stefan and Hellwagner, Hermann}, journal = {IEEE Multimedia Communications Technical Committee E-Letter}, title = {Enhancing 3D Video to enable a Fully Immersive Sensory Experiences}, year = {2014}, month = {jan}, number = {1}, pages = {23-26}, volume = {9}, address = {New York, NY, USA}, language = {EN}, pdf = {https://www.itec.aau.at/bib/files/E-Letter-Jan2014.pdf}, publisher = {IEEE Communications Society [online]}, url = {http://committees.comsoc.org/mmc/e-news/E-Letter-Jan2014.pdf} } @InProceedings{Timmerer2014, author = {Timmerer, Christian and Mueller, Christopher and Lederer, Stefan}, booktitle = {2014 NAB Broadcast Engineering Conference Proceedings \& CD}, title = {Adaptive Media Streaming over Emerging Protocols}, year = {2014}, address = {Washington DC, USA}, editor = {available, not}, month = {apr}, pages = {4}, publisher = {National Association of Broadcasters (NAB)}, abstract = {The emerging MPEG standard Dynamic Adaptive Streaming over HTTP (MPEG-DASH) is designed for media delivery over the top of existing infrastructures and enables smooth multimedia streaming towards heterogeneous devices including both wired and wireless environments. The MPEG-DASH standard was designed to work with HTTP-URLs but mandates neither the actual version nor which underlying protocols to be used. This paper will provide a detailed introduction into emerging protocols (HTTP/2.0 and beyond) to be used in the context of adaptive media streaming, specifically DASH.}, language = {EN}, location = {Las Vegas, NV, USA}, pdf = {https://www.itec.aau.at/bib/files/TimmererC012314_revised.pdf}, slides = {https://www.itec.aau.at/bib/files/NAB2014-BEC.pdf}, talkdate = {2014.04.07}, talktype = {registered} } @InProceedings{Taschwer2014a, author = {Taschwer, Mario}, booktitle = {Proceedings of the ACM International Conference on Multimedia}, title = {Medical Case Retrieval}, year = {2014}, address = {New York, NY, USA}, editor = {n/a, n/a}, month = {nov}, pages = {639--642}, publisher = {ACM}, series = {MM '14}, doi = {10.1145/2647868.2654856}, isbn13 = {978-1-4503-3063-3}, keywords = {biomedical information retrieval, ImageCLEF medical tasks, multimodal information retrieval}, language = {EN}, location = {Orlando, Florida, USA}, pdf = {https://www.itec.aau.at/bib/files/Taschwer_ACM_MM_2014.pdf}, slides = {https://www.itec.aau.at/bib/files/Taschwer_ACM_MM_2014_slides.pdf}, talkdate = {2014.11.05}, talktype = {registered} } @TechReport{Taschwer2014, author = {Taschwer, Mario}, institution = {Institute of Information Technology (ITEC), Alpen-Adria-Universit\"{a}t}, title = {Textual Methods for Medical Case Retrieval}, year = {2014}, address = {Klagenfurt, Austria}, month = {may}, number = {TR/ITEC/14/2.01}, abstract = {Medical case retrieval (MCR) is information retrieval in a collection of medical case descriptions, where descriptions of patients' symptoms are used as queries. We apply known text retrieval techniques based on query and document expansion to this problem, and combine them with new algorithms to match queries and documents with Medical Subject Headings (MeSH). We ran comprehensive experiments to evaluate 546 method combinations on the ImageCLEF 2013 MCR dataset. Methods combining MeSH query expansion with pseudo-relevance feedback performed best, delivering retrieval performance comparable to or slightly better than the best MCR run submitted to ImageCLEF 2013.}, language = {EN}, pages = {50}, pdf = {https://www.itec.aau.at/bib/files/textual-mcr.pdf} } @Article{SchoeffmannTMM2014, title = {3-D Interfaces to Improve the Performance of Visual Known-Item Search}, author = {Schoeffmann, Klaus and Ahlstrom, David and Hudelist, Marco Andrea}, journal = {Multimedia, IEEE Transactions on}, year = {2014}, month = {dec}, number = {7}, pages = {10}, volume = {16}, address = {Los Alamitos, CA, USA}, doi = {10.1109/TMM.2014.2333666}, issn = {1520-9210}, keywords = {Browsers;Image color analysis;Layout;Navigation;Smart phones;Three-dimensional displays;Visualization}, language = {EN}, publisher = {IEEE} } @Article{SchoeffmannMTAP2014, title = {Keyframe extraction in endoscopic video}, author = {Schoeffmann, Klaus and Del Fabro, Manfred and Szkaliczki, Tibor and Böszörmenyi, Laszlo and Keckstein, Jörg}, journal = {Multimedia Tools and Applications}, year = {2014}, month = {aug}, pages = {1-20}, address = {New York}, doi = {10.1007/s11042-014-2224-7}, issn = {1380-7501}, keywords = {Keyframe extraction; Video segmentation; Endoscopy; Medical imaging}, language = {English}, publisher = {Springer US}, url = {http://dx.doi.org/10.1007/s11042-014-2224-7} } @InProceedings{SchoeffmannMM2014, author = {Schoeffmann, Klaus}, booktitle = {Proceedings of the ACM International Conference on Multimedia 2014 (ACM MM 2014)}, title = {The Stack-of-Rings Interface for Large-Scale Image Browsing on Mobile Touch Devices}, year = {2014}, address = {New York, NY, USA}, editor = {Hua, Kien and Rui, Yong and Steinmetz, Ralf}, month = {nov}, pages = {1097-1100}, publisher = {ACM}, language = {EN}, location = {Orlando, FL, USA}, talkdate = {2014.11.4}, talktype = {poster} } @Article{SchoeffmannIEEEMM2014, author = {Schoeffmann, Klaus}, journal = {IEEE MultiMedia}, title = {A User-Centric Media Retrieval Competition: The Video Browser Showdown 2012-2014}, year = {2014}, month = {dec}, number = {4}, pages = {8-13}, volume = {21}, address = {Los Alamitos, CA, USA}, language = {EN}, publisher = {IEEE} } @InProceedings{SchoeffmannICME2014a, author = {Schoeffmann, Klaus and Chromik, Kevin and Böszörmenyi, Laszlo}, booktitle = {Multimedia and Expo Workshops (ICMEW), 2014 IEEE International Conference on}, title = {Video Navigation on Tablets with Multi-Touch Gestures}, year = {2014}, address = {Los Alamitos, CA, USA}, editor = {Mei, Tao and Stiefelhagen, Rainer and Tian, Qi}, month = {jul}, pages = {6}, publisher = {IEEE}, doi = {10.1109/ICMEW.2014.6890560}, language = {EN}, location = {Chengdu, China}, talkdate = {2014.7.18}, talktype = {registered} } @InProceedings{RassRainer2014b, author = {Rass, Stefan and Rainer, Benjamin and Matthias, Vavti and Göllner, Johannes and Peer, Andreas and Schauer, Stefan}, booktitle = {International Conference on Software-Defined and Virtualized Future Wireless Networks}, title = {Secure Communication over Software-Defined Networks}, year = {2014}, address = {R, I}, editor = {n,A}, month = {oct}, pages = {0-0}, publisher = {Springer}, keywords = {Risk management; Network-level security and protection; Network communications; Privacy; Security}, language = {EN}, location = {Rome, Italy}, talkdate = {2014.10.28}, talktype = {registered} } @InProceedings{RassRainer2014a, author = {Rass, Stefan and Rainer, Benjamin}, booktitle = {Conference on Decision and Game Theory for Security}, title = {Numerical Computation of Multi-Goal Security Strategies}, year = {2014}, address = {LA, CA}, editor = {O'Conner, Lisa}, month = {nov}, pages = {0-0}, publisher = {Springer}, keywords = {Risk management; Network-level security and protection; Network communications; Privacy; Security}, language = {EN}, location = {Los Angeles, California}, talkdate = {2014.11.06}, talktype = {registered} } @InProceedings{Rainer2014_NOMS_QCMAN, author = {Rainer, Benjamin and Timmerer, Christian}, booktitle = {In Proceedings of the IEEE Network Operations and Management Symposium (IEEE NOMS 2014)}, title = {A Subjective Evaluation using Crowdsourcing of Adaptive Media Playout utilizing Audio-Visual Content Features}, year = {2014}, address = {Los Alamitos, CA, USA}, editor = {Lutfiyya, Hanan and Cholda, Piotr}, month = {may}, pages = {0--0}, publisher = {IEEE}, abstract = {Synchronizing multimedia playback among geographically distributed clients is a challenging task and is referred to as Inter-Destination Media Synchronization (IDMS). In this paper we discuss the uses cases of IDMS as identified within the SocialSensor Project and based on these use cases we derive a novel Adaptive Media Playout (AMP) scheme which aims on carrying out the process of synchronizing the media playback at the clients to a given synchronization point. We propose how visual and acoustic features can be used to achieve a QoE-aware and context-aware AMP scheme.}, isbn13 = {-}, keywords = {Adaptive Media Playout, Inter-Destination Media Synchronization, Social TV}, language = {EN}, location = {Krakow, Poland}, pdf = {https://www.itec.aau.at/bib/files/qcman-final.pdf}, talkdate = {2014.05.09}, talktype = {registered}, url = {http://www.qomex2013.org} } @InProceedings{Rainer2014_Mobiquituous, author = {Klusch, Matthais and Kapahnke, Patrick and Cao, Xiaoqi and Rainer, Benjamin and Timmerer, Christian and Mangold, Stefan}, booktitle = {Proceedings of the 11th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services}, title = {MyMedia: Mobile Semantic Peer-to-Peer Video Search and Live Streaming}, year = {2014}, address = {New York, NY, USA}, editor = {Youssef, Moustafa}, month = {dec}, pages = {10}, publisher = {ACM}, abstract = {Mobile peer-to-peer (P2P) computing with applications such as for video on demand, file sharing, and video conferencing is gaining momentum based on new standards and technologies such as IETF PPSP, WiFi-Direct and BitTorrent live streaming. In this paper, we describe the mobile system MyMedia, that allows users to search, share and experience videos and live recordings using P2P and at the best quality possible with respect to available network capacity. In particular, the MyMedia system features a high-precision semantic P2P search and dynamic network-adaptive P2P live streaming of MPEG videos over HTTP based on the ISO/IEC standard MPEG-DASH from mobile to mobile devices in unstructured wireless P2P networks. These features have been integrated in the mobile application TIFF EventLive of the 54th Thessaloniki international film festival. The evaluation of their performance and device energy consumption, and a first user evaluation at the festival showed that the MyMedia system is suitable and accepted by users for its purpose in practice. The MyMedia system is available as open-source software for the Android operating system.}, isbn13 = {-}, language = {EN}, location = {London, Great Britain}, pdf = {https://www.itec.aau.at/bib/files/mobi_mymedia_paper.pdf}, talkdate = {2014.12.05}, talktype = {registered}, url = {http://mobiquitous.org/2014} } @InProceedings{Rainer2014_LP2P, author = {Rainer, Benjamin and Timmerer, Christian and Kapahnke, Patrick and Klusch, Matthias}, booktitle = {Proceedings of the 10th IEEE Consumer Communication and Networking Conference (CCNC)}, title = {Real-time Multimedia Streaming in Unstructured Peer-to-Peer Networks}, year = {2014}, address = {Las Vegas, U.S.A}, editor = {not, available}, month = {jan}, pages = {n.a.}, publisher = {IEEE Consumer Communication and Networking Conference}, abstract = {With the introduction of social networks like Facebook, Google+, and Twitter, the ways of sharing impressions of events has changed. We try to go a step further than social networks do. We offer the possibility to share events live with friends and colleagues. Our approach is based on semantic search in unstructured peer-to-peer (P2P) networks for querying content in mobile ad hoc networks and dynamic adaptive streaming over HTTP for the actual delivery of the real-time media impressions.}, language = {EN}, location = {Planet Hollywood, Las Vegas}, pdf = {https://www.itec.aau.at/bib/files/1999764446.pdf}, talkdate = {2014.01.11}, talktype = {poster} } @Article{Rainer2014_AUTI, author = {Rainer, Benjamin and Timmerer, Christian}, journal = {ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM)}, title = {A Generic Utility Model Representing the Quality of Sensory Experience}, year = {2014}, month = {oct}, pages = {14:1--14:17}, address = {New York, NY, USA}, booktitle = {ACM Trans. Multimedia Comput. Commun. Appl.}, editor = {Steinmetz, Ralf and Ghinea, Gheorghita and Timmerer, Christian and Lin, Weisi and Gulliver, Stephen and Zha, Zheng-Jun and Zhang, Lei and M\"{u}hlh\"{a}user, Max and Smeaton, Alan}, language = {EN}, pdf = {https://www.itec.aau.at/bib/files/TOMCCAP-SE-Model.pdf}, publisher = {ACM}, talktype = {none} } @InProceedings{Rainer2014_ACM_MM_SELFORG, author = {Rainer, Benjamin and Timmerer, Christian}, booktitle = {Proceedings of the 22st ACM International Conference on Multimedia}, title = {Self-Organized Inter-Destination Multimedia Synchronization For Adaptive Media Streaming}, year = {2014}, address = {New York, NY, USA}, editor = {ACM,}, month = {nov}, pages = {10}, publisher = {ACM}, abstract = {Social networks have become pervasive and have changed the way of social interaction. The traditional TV experience drifts from an event tied to a certain place with the family or friends to a location-independent and distributed social experience. Additionally, more and more video on-demand services adopt a pull-based streaming approach. In order to provide a synchronized and distributed TV experience we introduce a self-organized Inter-Destination Multimedia Synchronization (IDMS) framework for adaptive media streaming. In particular, we extend the principles of IDMS to adaptive media streaming over HTTP (i.e., MPEG-DASH) and enable a synchronized multimedia playback among geographically distributed clients. Therefore, we introduce session management to MPEG-DASH and for negotiating on a reference playback timestamp among the participating peers in an IDMS session we propose a distributed control scheme. We evaluate our proposed scheme with respect to scalability and time required for negotiating on the reference playback timestamp. Furthermore, we investigate how to compensate the identified asynchronism by using adaptive media playout with respect to the Quality of Experience (QoE). Therefore, we define a temporal distortion measure for audio and video which allows us to model the impact of playback rate variations on the QoE. This measure is evaluated by conducting a subjective quality assessment using crowdsourcing.}, isbn13 = {-}, keywords = {Inter-Destination Multimedia Synchronization, Adaptive Media Streaming, Self-Organization, Quality of Experience, Dynamic Adaptive Streaming over HTTP}, language = {EN}, location = {Orlando, Florida}, pdf = {https://www.itec.aau.at/bib/files/acmm14.pdf}, talkdate = {2014.11.03}, talktype = {registered}, url = {http://acmmm.org/2014/} } @InProceedings{Rain1412:VNext, title = {Quality of Experience of Web-based Adaptive HTTP Streaming Clients in Real-World Environments using Crowdsourcing}, author = {Rainer, Benjamin and Timmerer, Christian}, booktitle = {First International Workshop on VideoNext: Design, Quality and Deployment of Adaptive Video Streaming}, year = {2014}, address = {Australia, Sydney}, editor = {N, N}, month = {dec}, pages = {1-6}, publisher = {ACM}, keywords = {Dynamic Adaptive Streaming over HTTP; Crowdsourcing; Subjective Quality Assessment; Quality of Experience; QoE; DASH; MPEG}, language = {EN}, location = {Singapore}, pdf = {https://www.itec.aau.at/bib/files/videoNextDASH.pdf}, talkdate = {2014.12.02}, talktype = {registered} } @InProceedings{Rain1409:Quality, author = {Rainer, Benjamin and Timmerer, Christian}, booktitle = {Sixth International Workshop on Quality of Multimedia Experience (QoMEX 2014)}, title = {A Quality of Experience Model for Adaptive Media Playout}, year = {2014}, address = {Singapore, Singapore}, editor = {Winkler, Stefan}, month = {sep}, pages = {1-4}, publisher = {IEEE}, abstract = {In the past decade Adaptive Media Playout (AMP) has been intensively studied with respect to the detection of when to increase or decrease the playback rate in order to maintain a certain buffer fill state. In this paper we subjectively assess the QoE of AMP with respect to non-periodically and randomly selected content sections of a video sequence by us- ing crowdsourcing. Furthermore, we introduce features that allow to quantify the distortion for audio and video that are caused by increasing or decreasing the playback rate. With these preliminaries we study the correlation between the introduced features and the subjectively assessed QoE. Therefore, we derive a utility model that allows to estimate the QoE with the introduced features. We instantiate and validate the model by the use of the data gathered by the conducted study.}, keywords = {Adaptive Media Playout; Inter-Destination Media Synchronization; Crowdsourcing; Subjective Quality Assessment; Quality of Experience}, language = {EN}, location = {Singapore}, pdf = {https://www.itec.aau.at/bib/files/QoMEX-paper_Rainer.pdf}, talkdate = {2014.09.19}, talktype = {registered} } @InProceedings{Raffelsberger2014, title = {Combined Mobile Ad-Hoc and Delay/Disruption-Tolerant Routing}, author = {Raffelsberger, Christian and Hellwagner, Hermann}, booktitle = {Proceedings of the 13th International Conference on Ad-hoc, Mobile, and Wireless Networks (ADHOC-NOW '14)}, year = {2014}, address = {Berlin Heidelberg}, editor = {Guo, Song and Manzoni, Pietro and Lloret, Jaime and Ruehrup, Stefan}, month = {jun}, pages = {1-14}, publisher = {Springer}, series = {Lecture Notes in Computer Science (LNCS 8487)}, volume = {8487}, isbn13 = {978-3-319-07424-5}, keywords = {mobile ad-hoc networks; disruption-tolerant networks; routing; simulation}, language = {EN}, location = {Benidorm, Spain}, pdf = {https://www.itec.aau.at/bib/files/cr-adhocnow-authorver2.pdf}, talkdate = {2014.06.24}, talktype = {registered} } @InProceedings{Primus_ACM2014, author = {Primus, Manfred Jürgen}, booktitle = {Proceedings of the ACM International Conference on Multimedia}, title = {Segmentation and Indexing of Endoscopic Videos}, year = {2014}, address = {New York, NY, USA}, editor = {n/a, n/a}, month = {nov}, pages = {659--662}, publisher = {ACM}, series = {MM '14}, abstract = {Over the last few years it has become common to archive video recordings of endoscopic surgeries. These videos are of high value for medics, junior doctors, patients and hospital management but currently they are used rarely or not at all. Each day tens to hundreds of hours of new videos are added to archives without metadata that would support content-based search. In order to fully utilize these videos it is necessary to analyze the content of the recordings. Endoscopic videos are in some aspects fundamentally different to other types of videos. Therefore, pre-existing content-based analysis methods must be tested for their ability to operate with this kind of video and, if required, they must be adopted or new methods must be found. Especially, we address video segmentation and indexing in this work. We present our preliminary work and ideas for future work to add content-based information to endoscopic videos.}, language = {EN}, location = {Orlando, Florida, USA}, talkdate = {2014.11.05}, talktype = {registered} } @InProceedings{Posch2014b, author = {Posch, Daniel and Kreuzberger, Christian and Rainer, Benjamin and Hellwagner, Hermann}, booktitle = {Proceedings of the 10th International Conference on Emerging Networking Experiments and Technologies, VideoNext Workshop}, title = {Using In-Network Adaptation to Tackle Inefficiencies Caused by DASH in Information-Centric Networks}, year = {2014}, address = {New York, NY, USA}, editor = {Dixon, Colin}, month = {dec}, pages = {1-6}, publisher = {ACM Digital Library}, abstract = {The consumption of audio-visual content is the most dominant traffic source in today's Internet. Novel architectural approaches, such as Information-Centric Networking (ICN), are developed to support efficient multimedia dissemination. As ICN and MPEG-DASH have several concepts in common, recent proposals consider a fusion of both technologies. However, MPEG-DASH relies on pure client-driven adaptation. This often rather selfish adaptation strategy inhibits benefits gained from ICN's inherent caching and multi-path transmission capabilities. In order to overcome this challenge, the contribution of this work is the integration of in-network adaptation (INA) in ICN. We illustrate that INA can be realized despite ICN's content-based security model. Our proposal rests on scalable content, which enables INA without management and transmission overhead.}, keywords = {Information-Centric Networking; In-Network Adaptation; Adaptive Streaming; Multimedia Dissemination}, language = {EN}, location = {Sydney, Australia}, pdf = {https://www.itec.aau.at/bib/files/video01fp.pdf}, talkdate = {2014.12.02}, talktype = {registered} } @InProceedings{Posch2014, author = {Posch, Daniel and Kreuzberger, Christian and Rainer, Benjamin and Hellwagner, Hermann}, booktitle = {Proceedings of the 1st ACM Conference on Information-Centric Networking}, title = {Client Starvation: A Shortcoming of Client-driven Adaptive Streaming in Named Data Networking}, year = {2014}, address = {New York, NY, USA}, editor = {Mendes, Paulo}, month = {sep}, pages = {1-2}, publisher = {ACM Digital Library}, abstract = {Information-centric Networking (ICN) as a potential Future Internet architecture has to efficiently support the consumption of multimedia content. Recent proposals consider the reuse of MPEG-DASH to provide adaptive streaming in ICN. Due to the fact that MPEG-DASH relies on pure client-driven adaptation, it encounters difficulties dealing with ICN's inherent caching and multi-path transmission. By conducting simulations using the concrete ICN approach Named Data Networking (NDN), we show that pure client-driven adaptation leads to shortcomings. Furthermore, we propose to use in-network adaptation based on scalable content for overcoming these shortcomings in NDN.}, doi = {10.1145/2660129.2660162}, keywords = {Information-centric Networking; Adaptive Streaming}, language = {EN}, location = {Paris, Frankreich}, pdf = {https://www.itec.aau.at/bib/files/icn14_final.pdf}, talkdate = {2014.09.26}, talktype = {poster}, url = {http://dx.doi.org/10.1145/2660129.2660162} } @Article{Pohl2014b, author = {Pohl, Daniela}, journal = {E-Letter on Social Media Analysis for Crisis Management}, title = {Social Media Analysis for Crisis Management: A Brief Survey}, year = {2014}, month = {mar}, number = {1}, pages = {1-10}, volume = {2}, address = {http://stcsn.ieee.net/e-letter/vol-2-no-1}, language = {EN}, publisher = {IEEE Computer Society Special Technical Community on Social Networking (STCSN)}, url = {http://stcsn.ieee.net/e-letter/vol-2-no-1/social-media-analysis-for-crisis-management-a-brief-survey} } @Article{Pohl2014a, author = {Pohl, Daniela and Bouchachia,Abdelhamid and Hellwagner, Hermann}, journal = {E-Letter on Social Media Analysis for Crisis Management}, title = {Crisis-related Sub-Event Detection Based on Clustering}, year = {2014}, month = {mar}, note = {IEEE Computer Society Special Technical Community on Social Networking E-Letter}, number = {1}, pages = {1-10}, volume = {2}, address = {http://stcsn.ieee.net/e-letter/vol-2-no-1}, howpublished = {http://stcsn.ieee.net/e-letter/vol-2-no-1/crisis-related-sub-event-detection-based-on-clustering}, language = {EN}, publisher = {IEEE Computer Society Special Technical Community on Social Networking (STCSN)}, url = {http://stcsn.ieee.net/e-letter/vol-2-no-1/crisis-related-sub-event-detection-based-on-clustering} } @InProceedings{Muenzer2014, author = {Münzer, Bernd and Schoeffmann, Klaus and Böszörmenyi, Laszlo and Smulders, Johannes Franciscus and Jakimowicz, Jack J}, booktitle = {27th International Symposium on Computer-Based Medical Systems (CBMS'14)}, title = {Investigation of the Impact of Compression on the Perceptional Quality of Laparoscopic Videos}, year = {2014}, address = {New York City, USA}, editor = {Krol, Marina}, month = {may}, pages = {153-158}, publisher = {IEEE}, language = {EN}, location = {New York City, USA}, talkdate = {2014.05.27}, talktype = {registered} } @InProceedings{Iscram2014a, author = {Al-Akkad, Amro and Raffelsberger, Christian and Boden, Alexander and Ramirez, Leonardo and Zimmermann, Andreas}, booktitle = {Proceedings of the 11th International Conference on Information Systems for Crisis Response and Management (ISCRAM '14)}, title = {Tweeting 'When Online is Off'? Opportunistically Creating Mobile Ad-hoc Networks in Response to Disrupted Infrastructure}, year = {2014}, address = {University Park, Pennsylvania, USA}, editor = {Hiltz, Star Roxanne and Pfaff, Mark S and Plotnick, Linda and Shih, Patrick C}, month = {may}, pages = {657-666}, publisher = {The Pennsylvania State University, USA}, isbn13 = {978-0-692-21194-6}, language = {EN}, location = {University Park, Pennsylvania, USA}, pdf = {https://www.itec.aau.at/bib/files/iscram2014-p35.pdf}, talkdate = {2014.05.21}, talktype = {registered} } @InProceedings{Iscram2014, author = {Al-Akkad, Amro and Raffelsberger, Christian}, booktitle = {Proceedings of the 11th International Conference on Information Systems for Crisis Response and Management (ISCRAM '14)}, title = {How do I get this App? A Discourse on Distributing Mobile Applications Despite Disrupted Infrastructure}, year = {2014}, address = {University Park, Pennsylvania, USA}, editor = {Hiltz, Star Roxanne and Pfaff, Mark S and Plotnick, Linda and Shih, Patrick C}, month = {may}, pages = {560-564}, publisher = {The Pennsylvania State University, USA}, isbn13 = {978-0-692-21194-6}, language = {EN}, location = {University Park, Pennsylvania, USA}, pdf = {https://www.itec.aau.at/bib/files/iscram2014-p155.pdf}, talkdate = {2014.05.21}, talktype = {registered} } @Article{HudelistIJSC2014, author = {Hudelist, Marco Andrea and Schoeffmann, Klaus and Ahlström, David}, journal = {International Journal of Semantic Computing}, title = {Evaluating Alternatives to the 2D Grid Interface for Mobile Image Browsing}, year = {2014}, month = {sep}, pages = {25}, address = {Singapore}, doi = {10.1142/S1793351X14400042}, language = {EN}, publisher = {World Scientific}, url = {http://www.worldscientific.com/doi/abs/10.1142/S1793351X14400042?src=recsys&journalCode=ijsc} } @InProceedings{Hudelist:2014:OPM:2578726.2578798, title = {OpenCV Performance Measurements on Mobile Devices}, author = {Hudelist, Marco Andrea and Cob\^{a}rzan, Claudiu and Schoeffmann, Klaus}, booktitle = {Proceedings of International Conference on Multimedia Retrieval}, year = {2014}, address = {New York, NY, USA}, editor = {Jose, Joemon and Van Rijsbergen, Keith}, month = {apr}, pages = {479:479--479:482}, publisher = {ACM}, series = {ICMR '14}, doi = {10.1145/2578726.2578798}, keywords = {Mobile devices, OpenCV, performance evaluation}, language = {EN}, location = {Glasgow, United Kingdom}, talkdate = {2014.04.02}, talktype = {poster}, url = {http://doi.acm.org/10.1145/2578726.2578798} } @Article{Hossfeld2014_Computer, author = {Ho{\ss}feld, Tobias and Keimel, Christian and Timmerer, Christian}, journal = {Computer}, title = {Crowdsourcing Quality-of-Experience Assessments}, year = {2014}, month = {sep}, number = {9}, pages = {98--102}, volume = {47}, abstract = {Crowdsourced quality-of-experience (QoE) assessments are more cost-effective and flexible than traditional in-lab evaluations but require careful test design, innovative incentive mechanisms, and technical expertise to address various implementation challenges.}, address = {Los Alamitos, CA, USA}, doi = {10.1109/MC.2014.245}, language = {EN}, pdf = {https://www.itec.aau.at/bib/files/mco2014090098.pdf}, publisher = {IEEE Computer Society} } @InProceedings{Hossfeld2014, author = {Ho{\ss}feld, Tobias and Hirth, Matthias and Korshunov, Pavel and Hanhart, Philippe and Gardlo, Bruno and Keimel, Christian and Timmerer, Christian}, booktitle = {2014 IEEE International Workshop on Multimedia Signal Processing (MMSP 2014)}, title = {Survey of Web-based Crowdsourcing Frameworks for Subjective Quality Assessment}, year = {2014}, address = {Piscataway, N.J. 08854, U.S.A.}, editor = {Rahardja, Susanto and Zhang, Zhengyou and Pereira, Fernando and Loui, Alexander}, month = {sep}, pages = {6}, publisher = {IEEE}, abstract = {The popularity of the crowdsourcing for performing various tasks online increased significantly in the past few years. The low cost and flexibility of crowdsourcing, in particular, attracted researchers in the field of subjective multimedia evalua- tions and Quality of Experience (QoE). Since online assessment of multimedia content is challenging, several dedicated frameworks were created to aid in the designing of the tests, including the support of the testing methodologies like ACR, DCR, and PC, setting up the tasks, training sessions, screening of the subjects, and storage of the resulted data. In this paper, we focus on the web-based frameworks for multimedia quality assessments that support commonly used crowdsourcing platforms such as Amazon Mechanical Turk and Microworkers. We provide a detailed overview of the crowdsourcing frameworks and evaluate them to aid researchers in the field of QoE assessment in the selection of frameworks and crowdsourcing platforms that are adequate for their experiments.}, language = {EN}, pdf = {https://www.itec.aau.at/bib/files/PDF_check_PID3271407.pdf}, talktype = {none} } @Article{Hellwagner2014c, author = {Lederer, Stefan and Mueller, Christopher and Timmerer, Christian and Hellwagner, Hermann}, journal = {IEEE Network}, title = {Adaptive Multimedia Streaming in Information-Centric Networks}, year = {2014}, month = {nov}, number = {6}, pages = {91-96}, volume = {28}, abstract = {ICN has received a lot of attention in recent years, and is a promising approach for the Future Internet design. As multimedia is the dominating traffic in today's and (most likely) the Future Internet, it is important to consider this type of data transmission in the context of ICN. In particular, the adaptive streaming of multimedia content is a promising approach for usage within ICN, as the client has full control over the streaming session and has the possibility to adapt the multimedia stream to its context (e.g. network conditions, device capabilities), which is compatible with the paradigms adopted by ICN. In this article we investigate the implementation of adaptive multimedia streaming within networks adopting the ICN approach. In particular, we present our approach based on the recently ratified ISO/IEC MPEG standard Dynamic Adaptive Streaming over HTTP and the ICN representative Content-Centric Networking, including baseline evaluations and open research challenges.}, address = {IEEE Communications Society}, language = {EN}, publisher = {IEEE} } @Article{Hellwagner2014b, author = {Andre, Torsten and Hummel, Karin Anna and Schoellig, Angela and Yanmaz, Evsen and Asadpour, Mahdi and Bettstetter, Christian and Grippa, Pasquale and Hellwagner, Hermann and Sand, Stephan and Zhang, Siwei}, journal = {IEEE Communications Magazine}, title = {Application-Driven Design of Aerial Communication Networks}, year = {2014}, month = {may}, number = {5}, pages = {129-137}, volume = {52}, abstract = {Networks of micro aerial vehicles (MAVs) equipped with various sensors are increasingly used for civil applications, such as monitoring, surveillance, and disaster management. In this article, we discuss the communication requirements raised by applications in MAV networks. We propose a novel system representation that can be used to specify different application demands. To this end, we extract key functionalities expected in an MAV network. We map these functionalities into building blocks to characterize the expected communication needs. Based on insights from our own and related real-world experiments, we discuss the capabilities of existing communications technologies and their limitations to implement the proposed building blocks. Our findings indicate that while certain requirements of MAV applications are met with available technologies, further research and development is needed to address the scalability, heterogeneity, safety, quality of service, and security aspects of multi-MAV systems.}, address = {IEEE Communications Society}, language = {EN}, publisher = {IEEE} } @Article{Hellwagner2014a, author = {Hellwagner, Hermann}, journal = {E-Letter on Social Media Analysis for Crisis Management}, title = {The BRIDGE Project - Bridging Resources and Agencies in Large-Scale Emergency Management}, year = {2014}, month = {mar}, note = {IEEE Computer Society Special Technical Community on Social Networking E-Letter}, number = {1}, pages = {1-10}, volume = {2}, abstract = {BRIDGE is a European collaborative project established within the Security Research sector of the European Commission. The basic goal of BRIDGE is to contribute to the safety of citizens by developing technical and organisational solutions that improve crisis and emergency management in EU member states. A (middleware) platform is being developed that is to provide technical support for multi-agency collaboration in large-scale emergency relief efforts. Several tools and software systems are being implemented and tested to support first responders in their efforts. Beyond technical considerations, organisational measures are being explored to ensure interoperability and cooperation among involved parties; social, ethical and legal issues are being investigated as well. A focus of the project is to demonstrate and validate its results in the course of real-world emergency response exercises. Since most of the BRIDGE work is beyond the scope of this e-letter on social networking, only a brief overview of the BRIDGE goals and work will be given. However, one thread of work is relevant in the context of social networking and deserves to be covered more closely: automatic detection of notable sub-events of a crisis from social networks. This activity makes use of crisis-related information coming from citizens via social networks and thus contributes to building an improved operational picture in a crisis situation and to better planning and performing crisis response tasks.}, address = {http://stcsn.ieee.net/e-letter/vol-2-no-1}, howpublished = {http://stcsn.ieee.net/e-letter/vol-2-no-1/the-bridge-project}, language = {EN}, publisher = {IEEE Computer Society Special Technical Community on Social Networking (STCSN)}, url = {http://stcsn.ieee.net/e-letter/vol-2-no-1/the-bridge-project} } @Article{Ghinea2014_Tutorial, author = {Ghinea, Gheorghita and Timmerer, Christian and Lin, Weisi and Gulliver, Stephen}, journal = {ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM)}, title = {Mulsemedia: State of the Art, Perspectives, and Challenges}, year = {2014}, issn = {1551-6857}, month = {sep}, number = {1s}, pages = {17:1--17:23}, volume = {11}, abstract = {Mulsemedia—multiple sensorial media—captures a wide variety of research efforts and applications. This article presents a historic perspective on mulsemedia work and reviews current developments in the area. These take place across the traditional multimedia spectrum—from virtual reality applications to computer games—as well as efforts in the arts, gastronomy, and therapy, to mention a few. We also describe standardization efforts, via the MPEG-V standard, and identify future developments and exciting challenges the community needs to overcome.}, address = {New York, NY, USA}, keywords = {Mulsemedia, contour perception, flow visualization, multisensory, perceptual theory, visual cortex, visualization}, language = {EN}, pdf = {https://www.itec.aau.at/bib/files/a17-ghinea.pdf}, publisher = {ACM} } @Article{Ghinea2014_Intro, author = {Ghinea, Gheorghita and Timmerer, Christian and Lin, Weisi and Gulliver, Stephen}, journal = {ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM)}, title = {Guest Editorial: Special Issue on Multiple Sensorial (MulSeMedia) Multimodal Media: Advances and Applications}, year = {2014}, issn = {1551-6857}, month = {sep}, number = {1s}, pages = {9:1--9:2}, volume = {11}, address = {New York, NY, USA}, language = {EN}, pdf = {https://www.itec.aau.at/bib/files/a9-ghinea.pdf}, publisher = {ACM} } @InProceedings{CobarzanVBS2014, author = {Cobarzan, Claudiu and Hudelist, Marco Andrea and Del Fabro, Manfred}, booktitle = {MultiMedia Modeling, 20th Anniversary International Conference}, title = {Content-Based Video Browsing with Collaborating Mobile Clients}, year = {2014}, address = {Berlin, Germany}, editor = {Gurrin, C and Hopfgartner, F and Hurst, W and Johansen, H and Lee, H and O'Connor, N}, month = {jan}, pages = {402-406}, publisher = {Springer}, language = {EN}, location = {Dublin, Ireland}, talkdate = {2014.01.07}, talktype = {poster} } @InProceedings{CobarzanMMM2014, author = {Cobarzan, Claudiu and Schoeffmann, Klaus}, booktitle = {Proceedings of the 20th International Conference on MultiMedia Modeling (MMM2014)}, title = {How do Users Search with Basic HTML5 Video Players?}, year = {2014}, address = {Berlin Heidelberg}, editor = {O'Connor,Noel and Hurst,Wolfgang and Lee,Hyowon and Gurrin,Cathal}, month = {jan}, pages = {12}, publisher = {Springer}, language = {EN}, location = {Dublin,Ireland}, talkdate = {2014.01.08}, talktype = {registered} }