15,947 research outputs found

    From media crossing to media mining

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    This paper reviews how the concept of Media Crossing has contributed to the advancement of the application domain of information access and explores directions for a future research agenda. These will include themes that could help to broaden the scope and to incorporate the concept of medium-crossing in a more general approach that not only uses combinations of medium-specific processing, but that also exploits more abstract medium-independent representations, partly based on the foundational work on statistical language models for information retrieval. Three examples of successful applications of media crossing will be presented, with a focus on the aspects that could be considered a first step towards a generalized form of media mining

    Chasing Sustainability on the Net : International research on 69 journalistic pure players and their business models

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    This report outlines how online-based journalistic startups have created their economical locker in the evolving media ecology. The research introduces the ways that startups have found sustainability in the markets of ten countries. The work is based on 69 case studies from Europe, USA and Japan. The case analysis shows that business models can be divided into two groups. The storytelling-oriented business models are still prevalent in our findings. These are the online journalistic outlets that produce original content – news and stories for audiences. But the other group, service-oriented business models, seems to be growing. This group consists of sites that don’t try to monetize the journalistic content as such but rather focus on carving out new functionality. The project was able to identify several revenue sources: advertising, paying for content, affiliate marketing, donations, selling data or services, organizing events, freelancing and training or selling merchandise. Where it was hard to evidence entirely new revenue sources, it was however possible to find new ways in which revenue sources have been combined or reconfigured. The report also offers practical advice for those who are planning to start their own journalistic site

    Re-enacting Early Video Art as a Research Tool for Media Art Histories

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    This paper will discuss re-enactment as a relevant tool for practice-based research to investigate pioneering video performances and video artworks from the 1970s and 1980s from a theoretical, art-historical and curatorial point of view. Since the early 2000s, the re-enactment of artists’ performance has been growing as an art practice internationally and has been investigated in several studies and exhibitions. In this paper, I will pro- pose that the re-enactment of early video artworks can open up critical analysis on the original work—its nature, form and content—as well as on collective and personal memory and mediation. Re-enactment becomes a research tool that investigates the nature of video which was at the time a relatively new medium. Re-enactment informs the research into the original piece, its documentation, the relationships between the artist and the body, the work and the viewer. It investigates the effects of analogue video on the viewer and the artist in comparison with the digital video employed in the re-enactment and its documentation. The paper will analyse case studies from the research projects REWIND, REWINDItalia and EWVA (European Women’s Video Art in the 70s and 80s)

    Analysis and Forecasting of Trending Topics in Online Media Streams

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    Among the vast information available on the web, social media streams capture what people currently pay attention to and how they feel about certain topics. Awareness of such trending topics plays a crucial role in multimedia systems such as trend aware recommendation and automatic vocabulary selection for video concept detection systems. Correctly utilizing trending topics requires a better understanding of their various characteristics in different social media streams. To this end, we present the first comprehensive study across three major online and social media streams, Twitter, Google, and Wikipedia, covering thousands of trending topics during an observation period of an entire year. Our results indicate that depending on one's requirements one does not necessarily have to turn to Twitter for information about current events and that some media streams strongly emphasize content of specific categories. As our second key contribution, we further present a novel approach for the challenging task of forecasting the life cycle of trending topics in the very moment they emerge. Our fully automated approach is based on a nearest neighbor forecasting technique exploiting our assumption that semantically similar topics exhibit similar behavior. We demonstrate on a large-scale dataset of Wikipedia page view statistics that forecasts by the proposed approach are about 9-48k views closer to the actual viewing statistics compared to baseline methods and achieve a mean average percentage error of 45-19% for time periods of up to 14 days.Comment: ACM Multimedia 201

    QoE in Pull Based P2P-TV Systems: Overlay Topology Design Tradeoff

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    Abstract—This paper presents a systematic performance anal-ysis of pull P2P video streaming systems for live applications, providing guidelines for the design of the overlay topology and the chunk scheduling algorithm. The contribution of the paper is threefold: 1) we propose a realistic simulative model of the system that represents the effects of access bandwidth heterogeneity, latencies, peculiar characteristics of the video, while still guaranteeing good scalability properties; 2) we propose a new latency/bandwidth-aware overlay topology design strategy that improves application layer performance while reducing the underlying transport network stress; 3) we investigate the impact of chunk scheduling algorithms that explicitly exploit properties of encoded video. Results show that our proposal jointly improves the actual Quality of Experience of users and reduces the cost the transport network has to support. I

    Multimedia Chinese Web Search Engines: A Survey

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    The objective of this paper is to explore the state of multimedia search functionality on major general and dedicated Web search engines in Chinese language. The authors studied: a) how many Chinese Web search engines presently make use of multimedia searching, and b) the type of multimedia search functionality available. Specifically, the following were examined: a) multimedia features - features allowing multimedia search; and b) extent of personalization - the extent to which a search engine Web site allows users to control multimedia search. Overall, Chinese Web search engines offer limited multimedia searching functionality. The significance of the study is based on two factors: a) little research has been conducted on Chinese Web search engines, and b) the instrument used in the study and the results obtained by this research could help users, Web designers, and Web search engine developers. By large, general Web search engines support more multimedia features than specialized one

    Business Models of Journalistic Startups in Portugal: an Analysis of Product Innovation, Dissemination and Monetization in Media Enterprises

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    Purpose: Journalistic startups are thriving around the world, bringing new approaches to the news media environment in terms of concepts, contents, dissemination, internal organization, and business models. This research is relevant to create a prospective view on the evolution of the news media business in the next years, also allowing us to identify some trends and experiences which can be useful to future researchers work, and for professionals of news media companies, startups or not, to get some insights that might help to develop (or even save) their own businesses. Methodology: Through semi-structured interviews with the editorial managers of each of the research subjects, we tried to understand the genesis, concepts, processes, and goals of these startups. We made a thematic analysis of the content, using an adapted version of the IPTC NewsCodes, to understand the editorial approach in terms of Genre, Subject, Media Topic, Media, and Priority in each of the startup’s publication platform. To better understand the business, we did a business model mapping, using the Business Model Canvas conceptual tool, for all the subjects. Findings/Contribution: The main findings indicate that all the startups in this research started through the identification of a problem or a need, within a small group of friends or colleagues. They all try to fit into a niche and not compete with legacy media, and search for alternative financing sources. All the teams are small, produce mainly long form reporting and interviews, and use mostly written text - but video tends to grow in volume. All the subjects work for niche audiences, by location or interests. These results contribute to create a structured and broader view of the journalistic startups scene in Portugal, but can also help other researchers to apply similar methods to map different realities, in geographical or thematical terms. This research can also contribute to better understanding the challenges that digital news media face in this networked society we live in

    Museums and New Media Art

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    Investigates the relationship between new media art and museums

    CHORUS Deliverable 2.1: State of the Art on Multimedia Search Engines

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    Based on the information provided by European projects and national initiatives related to multimedia search as well as domains experts that participated in the CHORUS Think-thanks and workshops, this document reports on the state of the art related to multimedia content search from, a technical, and socio-economic perspective. The technical perspective includes an up to date view on content based indexing and retrieval technologies, multimedia search in the context of mobile devices and peer-to-peer networks, and an overview of current evaluation and benchmark inititiatives to measure the performance of multimedia search engines. From a socio-economic perspective we inventorize the impact and legal consequences of these technical advances and point out future directions of research
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