M. Handley and J. Crowcroft. Network Text Editor (NTE) { A scalable shared text editor for the MBone. In Proc. of ACM SIGCOMM, Cannes, France, pages 197{ 208, 1997.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....packets. Timestamps play the role of helping multicast clients reconstruct and synchronise signals. This is specially important for media such as audio and video, but less relevant in text, and obviously too fine grained for the purposes to temporal mapping. The Network Text Editor (NTE) [8], which we have used in the initial phases of data collection of our project, defines larger abstract data units (ADU) than those used for the audio payload. However, the timing information extracted from NTE s packets still needed prepocessing in order to be usable by COMAP. For simplicity we ....

Handley, M., and Crowcroft, J. Network text editor (NTE): A scalable shared text editor for the MBone. In Proceedings of the ACM SIGCOMM Conference : Applications, Technologies, Architectures, and Protocols for Computer Communication (SIGCOMM-97) (New York, Sept. 14--18 1997), vol. 27,4 of Computer Communication Review, ACM Press, pp. 197--208.

....of transport layers that can be supported. The most important one is that our middleware targets applications that need to scale to a very large receiver group. Consequently, the transport must avoid the problem of ACK NACK implosion, through, for example, ACK aggregation [27] or NACK suppression [24, 26, 45]. Alternatively, a reliable multicast transport can adopt open loop reliability solutions such as cyclical broadcast [5] or errorcorrecting codes [13] open loop solution are an especially good fit for asymmetric communication environments such as satellites or heavily loaded servers. On the other ....

M. Handley and J. Crowcroft. Network text editor (nte) a scalable shared text editor for mbone. In Proc ACM SIGCOMM, pages 197--208, 1997.

....of transport layers that can be supported. The most important one is that our middleware targets applications that need to scale to a very large receiver group. Consequently, the transport must avoid the problem of ACK NACK implosion, through, for example, ACK aggregation [24] or NACK suppression [21, 23, 42]. Alternatively, a reliable multicast transport can adopt open loop reliability solutions such as cyclical broadcast [5] or error correcting codes [12] open loop solution are an especially good fit for asymmetric communication environments such as satellites or heavily loaded servers. On the ....

M. Handley and J. Crowcroft. Network text editor (nte) a scalable shared text editor for mbone. In Proc ACM SIGCOMM, pages 197--208, 1997.

....users to synchronously interact with the medium itself. Typical examples of distributed interactive media are shared whiteboards, which are used to present and edit slides in a teleconferencing environment [Gey99] as well as distributed virtual environments (DVEs) Hag96] shared text editors [HC97] and computer games with network support [GD98] Hand raising tools also belong to the class of distributed interactive media. They reproduce the social protocol of raising a hand (e.g. in order to be granted the right to speak in a meeting) and calling a certain person (e.g. to grant the ....

M. Handley and J. Crowcroft. Network Text Editor (NTE) -- A scalable shared text editor for the MBone. In ACM SIGCOMM, pages 197--208, 1997.

....to synchronously interact with the medium itself. Typical examples of distributed interactive media are shared whiteboards which are used to present and edit slides in a teleconferencing environment [Tun98, Gey99] as well as distributed virtual environments (DVEs) Hag96] shared text editors [HC97] and computer games with network support [GD98] Many of these make use of telepointers to support collaboration between session participants by visualizing mouse pointer movements of remote users. Despite being deployed in conjunction with other applications, telepointers are an independent ....

M. Handley and J. Crowcroft. Network Text Editor (NTE) -- A scalable shared text editor for the MBone. In ACM SIGCOMM, pages 197--208, 1997.

....Networked Computer Games, Distributed Virtual Environments I. Introduction T HE class of distributed interactive media, i.e. networked media involving user interaction, has received increasing interest over the past decade. Important representatives of this media class are shared workspaces [1], 2] distributed virtual environments [3] and networked computer games [4] These media often require common functionality. A prominent example is late join support, which allows late coming participants to synchronize with the current state of the session. Support for late comers is needed by ....

M. Handley and J. Crowcroft, \Network Text Editor (NTE): A scalable shared text editor for the MBone," in Proc. of the ACM Conference on Applications, Technologies, Architectures, and Protocols for Computer Communication (SIGCOMM) `97, 1997, pp. 197-208.

....users to synchronously interact with the medium itself. Typical examples of distributed interactive media are shared whiteboards, which are used to present and edit slides in a teleconferencing environment [Gey99] as well as distributed virtual environments (DVEs) Hag96] shared text editors [HC97] and computer games with network support [GD98] Feedback tools also belong to the class of distributed interactive media. They are used to poll opinions about certain criteria (e.g. technical parameters such as audio and video quality) of the participants in a collaborative session. Polling ....

M. Handley and J. Crowcroft. Network Text Editor (NTE) -- A scalable shared text editor for the MBone. In ACM SIGCOMM, pages 197--208, 1997.

....to synchronously interact with the medium itself. Typical examples of distributed interactive media are shared whiteboards which are used to present and edit slides in a teleconferencing environment [Tun98, Gey99] as well as distributed virtual environments (DVEs) Hag96] shared text editors [HC97] and computer games with network support [GD98] In the following, we briefly introduce the class of distributed interactive media and the Real Time Protocol for Distributed Interactive Media (RTP I) For a more detailed discussion please refer to [Mau00, MHKE01, MHK 00] In order to ....

M. Handley and J. Crowcroft. Network Text Editor (NTE) -- A scalable shared text editor for the MBone. In ACM SIGCOMM, pages 197--208, 1997.

....the general operation of MediaBoard, but without it the relative display order would not correspond to their actual modification time (See Section 3.4) 1 We next discuss some overall design issues of MediaBoard. 1 An algorithm to provide application level synchronous clocks is described in [21]. This algorithm can also be used to provide synchronous clocks in MediaBoard. MediaBoard: A Shared Whiteboard Application for the MBone 5 3.2 Registration To instantiate a collaboration session, the constituent participants must somehow rendezvous with each other. We call this the registration ....

....who is responsible for which activity. Since support for simultaneous activity is one of the chief advantages of computer supported shared drawing tools compared to conventional whiteboards [43] there is clearly a need to solve this problem. Our solution is inspired by other CSCW tools like NTE [21], GroupDraw and GroupSketch: we display banner windows next to the location of an activity while it is in progress. This type of user interface elements are often called tool tips , because a tool tip is a pop up window that displays important information next to an item of interest. The new user ....

[Article contains additional citation context not shown here]

HANDLEY, M., AND CROWCROFT, J. Network Text Editor (NTE): A scalable shared text editor for the MBone. In Proceedings of SIGCOMM

....users to synchronously interact with the medium itself. Typical examples of distributed interactive media are shared whiteboards, which are used to present and edit slides in a teleconferencing environment [Gey99] as well as distributed virtual environments (DVEs) Hag96] shared text editors [HC97] and computer games with network support [GD98] Chat tools also belong to the class of distributed interactive media. They allow a set of users to exchange text messages. In the following, we briefly introduce the class of distributed interactive media and the Real Time Protocol for Distributed ....

M. Handley and J. Crowcroft. Network Text Editor (NTE) -- A scalable shared text editor for the MBone. In ACM SIGCOMM, pages 197--208, 1997.

....users to synchronously interact with the medium itself. Typical examples of distributed interactive media are shared whiteboards, which are used to present and edit slides in a teleconferencing environment [Gey99] as well as distributed virtual environments (DVEs) Hag96] shared text editors [HC97] and computer games with network support [GD98] Application launch tools also belong to the class of distributed interactive media. With the help of an application launch tool an application can be started simultaneously at all sites. This application can either be collaboration aware or ....

M. Handley and J. Crowcroft. Network Text Editor (NTE) -- A scalable shared text editor for the MBone. In ACM SIGCOMM, pages 197--208, 1997.

....users to interact synchronously with the medium itself. Typical examples of distributed interactive media are shared whiteboards, which are used to present and edit slides in a teleconferencing environment [Tun98] GE98] distributed virtual environments (DVEs) Hag96] shared text editors [HC97] and computer games with network support [GD98] In order to provide high responsiveness and to avoid the drawbacks of centralized approaches, such as the presence of a single point of failure and lack of scalability, applications for distributed interactive media often employ a replicated ....

M. Handley and J. Crowcroft. Network Text Editor (NTE) { A scalable shared text editor for the MBone. In ACM SIGCOMM, pages 197-208, 1997.

.... have to be provided by other means: Quality of Service and resource reservation issues are being covered by numerous schemes such as [BCS93, FKSS98] Reliable transmission of data and concurrency resolution are generally considered to be application specific, if overhead is to be minimal [McC92, HC97] But currently the provision of privacy and authenticity for group members, e.g. by cryptographic means, is still missing. Current solutions often require human intervention (manual keying is common) or restrict the dynamics provided by multicasting and required by many applications. In this ....

M. Handley and J. Crowcroft. Network text editor (NTE): A scalable shared text editor for the MBone. In Proceedings of ACM SIGCOMM '97, pages 197--208, September 1997.

....transport medium. Conferencing over MBone allows us to deploy Internet Multicast capabilities and hence to support variable sized and dynamic groups. At present, tools currently supported by the CoBrow server are: rat [8] and vat [9] for audio; vic [12] for video; and wb (whiteboard) 10] and nte [4] (network text editor) for other forms of collaborative discussion or work. These allow video, audio and other shared facilities. Nevertheless, MSM is not restricted to those tools since to add other tools the only alteration needed on MSM is to include a new driver to cope with the new tool ....

M. Handley and J. Crowcroft. Network Text Editor (NTE) a Scalable Shared Text Editor for the Mbone. In ACM SIGCOMM, pages 197--208, 1997.

....IP Multicast, each source s data ow is delivered eciently to all interested receivers according to a multicast routing tree. For large scale group communication, the bandwidth savings a orded by multicast are enormous, and consequently, a large and growing number of multimedia conferencing tools [27, 37, 23, 36, 22] have been developed that exploit multicast and the MBone. Though multicast applications reap enormous performance bene ts from the underlying multicast service, they are fundamentally challenged by the heterogeneity that is inherent in the disparate technologies that comprise the Internet, both ....

Handley, M., and Crowcroft, J. Network Text Editor (NTE): A scalable shared text editor for the MBone . In Proceedings of SIGCOMM '97 (Cannes, France, Sept. 1997), Association for Computing Machinery.

....as an alternative to high cost bricks and mortar expansion; technical conferences are sometimes broadcast as a convenience to those who cannot attend physically. Usually composed of real time audio, video, and shared drawing applications, collaborative environments are widely deployed [15, 10, 7, 13, 20, 9, 8, 21]. In addition to video, audio, and whiteboard applications, it would be useful to have the ability to distribute documents over the World Wide Web (WWW) For example, a speaker might display slides directly on remote listeners desktop web browsers. Or perhaps a group of geographically remote ....

M. Handley and J. Crowcroft. Network Text Editor (NTE): A scalable shared text editor for the MBone. In Proceedings of SIGCOMM '97, Cannes, France, Sept. 1998.

....the receiver to determine timeouts for ageing out state. In [21] Floyd et al. describe the Scalable Reliable Multicast protocol as being eventually consistent. The authors propose an SRM framework, in which data is expired using application hints, analogous to our death process. Handley et al. [24] list eventual consistency as one of the goals of the shared state in the network text editor, NTE. However, neither paper provides an evaluation of system consistency. In [23] Handley demonstrates that adding feedback in the form of address clash reports to detect and correct address clashes ....

HANDLEY, M., AND CROWCROFT, J. Network Text Editor (NTE): A Scalable Shared Text Editor for the MBone. In Proceedings of SIGCOMM 1997 (Cannes, France, Sep 1997), ACM.

....at the receiver to determine timeouts for aging out state. In [40] Floyd et al. describe the Scalable Reliable Multicast protocol as being eventually consistent. The authors propose an SRM framework, in which data is expired using application hints, analogous to our death process. Handley et al. [51] list eventual consistency as one of the goals of the shared state in the network text editor, NTE. However, neither paper provides an evaluation of system consistency. In [50] Handley demonstrates that adding feedback in the form of address clash reports to detect and correct address clashes ....

Mark Handley and Jon Crowcroft. Network Text Editor (NTE): A Scalable Shared Text Editor for the MBone. In Proceedings of SIGCOMM 1997, Cannes, France, Sep 1997. ACM.

.... For example, real time conferencing applications transmit packetized audio and video from one or more senders to all receivers of a multicast group [40, 39, 55] Another class of applications allows a group of conference participants shared, dynamically annotatable views of documents and text [18, 22]. The characteristics of individual sessions of these applications may vary widely, ranging from tens to thousands of participants. Compared to a single session of a point to point application, users in a multicast session are more likely to be collectively a ected by network dynamics. In a best ....

M. Handley and J. Crowcroft. Network text editor (NTE): A scalable shared text editor for the MBone. In ACM SIGCOMM Computer Communication Review Vol. 27, No. 4 (Oct. 1997), (Proceedings of the ACM SIGCOMM'97), pages 197208, 1997.

....IP Multicast [Dee91, DEF 96] provides an efficient mechanism for multi point data delivery. The new class of multi party applications enabled by IP Multicast includes a variety of audio and video conferencing tools [Sch92, MJ95, JM] shared whiteboards and text editors [McC92, RT96, HC97] and floor control applications [MR97] If computer supported collaboration is to become successful and mainstream, it must at the very least provide functionality that was previously unavailable in face to face meetings. By harnessing the computing technology at our disposal today, instead of ....

Mark Handley and Jon Crowcroft. Network Text Editor (NTE): A scalable shared text editor for the MBone . In Proceedings of SIGCOMM '97, Cannes, France, September 1997. Association for Computing Machinery.

....packet communication where each source s data flow is delivered efficiently to all interested receivers according to a multicast routing tree. This network technology has enabled a new breed of largescale collaborative applications, and a large and growing number of multimedia conferencing tools [21, 27, 18, 25, 17] have been developed that exploit multicast and the MBone. The MBone has been extremely powerful in the arena of audio and video conferencing. Increasingly, we are seeing the use of other collaboration tools such as electronic shared whiteboards and shared text editors in remote conferences. ....

Handley, M., and Crowcroft, J. Network Text Editor (NTE): A scalable shared text editor for the MBone . In Proceedings of SIGCOMM '97 (Cannes, France, Sept. 1997), Association for Computing Machinery.

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M. Handley and J. Crowcroft. Network text editor (NTE): A scalable shared text editor for the Mbone. In Proceedings ACM SIGCOMM'97, Cannes, France, September 1997.

No context found.

M. Handley and J. Crowcroft. Network Text Editor (NTE) { A scalable shared text editor for the MBone. In Proc. of ACM SIGCOMM, Cannes, France, pages 197{ 208, 1997.

No context found.

M. Handley and J. Crowcroft. Network text editor (NTE): A scalable shared text editor for the MBone. In SIGCOMM, pages 197--208, 1997.

No context found.

M. Handley and J. Crowcroft. Network text editor (NTE): A scalable shared text editor for the Mbone. In Proceedings ACM SIGCOMM'97, Cannes, France, September 1997.

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