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17
Designing an On-Demand Multimedia Service
- IEEE Communications Magazine
, 1992
"... Future advances in networking coupled with rapid advances in storage technologies will make it feasible to build a multimedia on-demand server capable of providing services similar to those of a neighborhood videotape rental store on a metropolitan-area network. In this paper, we study various admis ..."
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Cited by 143 (0 self)
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Future advances in networking coupled with rapid advances in storage technologies will make it feasible to build a multimedia on-demand server capable of providing services similar to those of a neighborhood videotape rental store on a metropolitan-area network. In this paper, we study various admission control policies that permit such a multimedia server to satisfy multiple subscribers simultaneously without violating any of their continuous media playback requirements. We propose a quality proportional policy that retrieves media blocks at a rate proportional on an average to the playback rates of media streams, but uses a staggered toggling technique by which successive numbers of media blocks retrieved are fine-tuned individually to admit and service an optimal number of subscribers simultaneously. This policy permits dynamic additions and deletions of requests in a transparent manner (i.e., without causing discontinuity in the retrieval of any of the existing requests). Performan...
Multimedia Storage Servers: A Tutorial and Survey
- IEEE COMPUTER
, 1995
"... Multimedia storage servers provide access to multimedia objects including text, images, audio, and video. The design of such servers fundamentally differs from conventional servers due to: (1) the real-time storage and retrieval, as well as (2) the large storage space and data transfer rate requirem ..."
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Cited by 32 (1 self)
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Multimedia storage servers provide access to multimedia objects including text, images, audio, and video. The design of such servers fundamentally differs from conventional servers due to: (1) the real-time storage and retrieval, as well as (2) the large storage space and data transfer rate requirements of digital multimedia. In this paper, we present an overview of the architectures and algorithms required for designing digital multimedia storage servers.
D.: "Architecture for distributed multimedia database systems
- Computer Communications
, 1990
"... Abstract – In the past few years considerable demand for user oriented multimedia information systems has developed. These systems must provide a rich set of functionality so that new, complex, and interesting applications can be addressed. This places considerable importance on the management of di ..."
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Cited by 15 (2 self)
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Abstract – In the past few years considerable demand for user oriented multimedia information systems has developed. These systems must provide a rich set of functionality so that new, complex, and interesting applications can be addressed. This places considerable importance on the management of diverse data types including text, images, audio and video. These requirements generate the need for a new generation of distributed heterogeneous multimedia database systems. In this paper we identify a set of functional requirements for a multimedia server considering database management, object synchronization and integration, and multimedia query processing. A generalization of the requirements to a distributed system is presented, and some of our current research and developing activities are discussed.
Roles for new technologies in language arts: Inquiry, collaboration, construction, and expression
, 2001
"... New information and communications technologies such as computers and electronic networks are now being used in all facets of teaching the English language arts. These applications include word processors, tutoring programs, data bases, and new communications media. The wide-ranging uses of digital ..."
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Cited by 11 (2 self)
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New information and communications technologies such as computers and electronic networks are now being used in all facets of teaching the English language arts. These applications include word processors, tutoring programs, data bases, and new communications media. The wide-ranging uses of digital tools and media promise to transform language teaching. At the same time, there are concerns about the needs for teacher education, the time involved in learning new technologies, the monetary costs, the effects on students ' learning, plagiarism, privacy, and a host of other issues. They all point to a general question: "What role should these technologies play in teaching and learning? " This chapter argues that a productive answer can develop out of Dewey's characterization of the interests of the learner. It discusses examples of applications grouped into four uses: (1) inquiry, (2) communication, (3) construction, and (4) expression. A decade ago, about the time work began on the precursor of this chapter (Bruce, 1991), televisions around the world displayed scenes of confrontation between students
The unOfficial Yellow Pages of CSCW - groupware, prototypes and projects
- Pipeline Pipeline Pipeline Pipeline USA Germany ISDN
, 1994
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A multiple-representation paradigm for document development
- Computer Science Division, University of California, Berkeley
, 1988
"... Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments ..."
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Cited by 4 (0 self)
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Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.
Multimedia Applications Development: Experiences
, 1997
"... The multimedia applications developer is often presented with challenges that at times go beyond informatics technologies. In this paper, the MCRLab experiences in various multimedia applications development are described. Applications developed include tele-medicine, tele-conferencing with joint te ..."
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Cited by 4 (0 self)
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The multimedia applications developer is often presented with challenges that at times go beyond informatics technologies. In this paper, the MCRLab experiences in various multimedia applications development are described. Applications developed include tele-medicine, tele-conferencing with joint text editing, multimedia mail, multimedia fax, multimedia news-on-demand and shared multimedia workspaces in distance learning. 1. Introduction The term "multimedia" is used very frequently these days but there is no standard definition of it yet. "Media" refers to a form of human interaction that is amenable to computer capture and processing, such as video, audio, text, graphics, images,.., whereas "multi" signifies that several of those "media" are present in the same application. We like the definition given by some authors that an application will be considered as "multimedia", if it involves at least one time-continuous medium, such as video and audio, and at least one discrete one, su...
The University as the
, 1970
"... Concerned with the broad range of issues affecting the administration of research, Research Management Review provides a forum for the dissemination of knowledge about the study and practice of rhe profession of research administration. Research Management Review is published semiannually by the Nat ..."
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Cited by 3 (0 self)
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Concerned with the broad range of issues affecting the administration of research, Research Management Review provides a forum for the dissemination of knowledge about the study and practice of rhe profession of research administration. Research Management Review is published semiannually by the National Council of University Research Administrators at One DuPont Circle, N.W., Suite 420, Washington, D.C. 20036. NCURA’s annual membership dues pays for the subscription to Research Management Review. One-year subscription rate is $20. Orders for single copies must be accompanied with prepayment of $10. Subscription requests and changes of address should be sent to Research
The Experimental Literature of the Internet: An Annotated Bibliography
- WRL Research Report 88/3
, 1988
"... Abstract The DARPA Internet is the most successful experiment in heterogeneous internetworking. It connects computer systems from almost every major vendor, using a wide variety of wide-area and local-area network technology, and is in continual use by thousands of people. This annotated bibliograp ..."
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Cited by 1 (0 self)
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Abstract The DARPA Internet is the most successful experiment in heterogeneous internetworking. It connects computer systems from almost every major vendor, using a wide variety of wide-area and local-area network technology, and is in continual use by thousands of people. This annotated bibliography covers the literature of the Internet as an experiment: publications which convey the experience acquired by the experimenters.
Group Presentation of Multimedia Applications in IXION
, 1991
"... The IXION multimedia, distributed system infrastructure is introduced, and its model of synchronous group work support is described. The model of group work is composed of a small number of simple abstractions within the IXION computational model. These are fully integrated into the infrastructure l ..."
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Cited by 1 (0 self)
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The IXION multimedia, distributed system infrastructure is introduced, and its model of synchronous group work support is described. The model of group work is composed of a small number of simple abstractions within the IXION computational model. These are fully integrated into the infrastructure layers, and the degree of integration extends to full multimedia capability for distributed group work. The model allows existing single user applications to be used by groups of users, as well as providing assistance with the implementation of new, purpose builtgroup# applications. 1. Introduction Recent years have seen rapid developments in the field of computer supported collaborative work (CSCW) which have received further impetus from the advent of multimedia computing 1,2. The combination of distributed systems and multimedia capabilities considerably widens the scope of CSCW applications and makes feasible a whole range of new applications. Examples include distance learning, computer ...
