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A Dynamic Manifestation Approach for Providing Universal Access to Digital Library Objects
July/August 2001 (vol. 13 no. 4)
pp. 705-716

AbstractDigital libraries are concerned with the creation and management of information sources, the movement of information across global networks, and the effective use of this information by a wide range of users. A digital library is a vast collection of objects that are of multimedia nature, e.g., text, video, images, and audio. Users wishing to access the digital library objects may possess varying capabilities, preferences, domain expertise, and may use different information appliances. Facilitating access to complex multimedia digital library objects that suits the users' requirements is known as universal access. In this paper, we present an object manifestation approach in which digital library objects automatically manifest themselves to cater to the users' capabilities and characteristics. We provide a formal framework, based on Petri nets, to represent the various components of the digital library objects, their modality and fidelity, and the playback synchronization relationships among them. We develop methodologies for object delivery without any deadtime under network delays.

[1] Patrice's Petri Net Java Applet.
[2] N. Adam and S. Naqvi, “Universal Access in Digital Libraries,” ACM Computing Surveys, vol. 28, no. 4, Dec. 1996.
[3] N. Adam and Y. Yesha, “Electronic Commerce: Current Research Issues and Applications,” Lecture Notes in Computer Science, vol. 1028,Springer-Verlag, 1996.
[4] N. Adam and Y. Yesha, “Electronic Commerce and Digital Libraries: Towards a Digital Agora,” ACM Computing Surveys, Dec. 1996.
[5] N. Adam and Y. Yesha, “Digital Libraries: Introduction,” Int'l J. Digital Libraries, Apr. 1997.
[6] J. Allen, "Towards A General Theory of Action and Time," Artificial Intelligence, Vol. 23, No. 2, July 1984, pp. 123-154.
[7] D. Chen et al. “A Framework for Experimenting with QoS for Multimedia Services,” Proc. Multimedia Computing and Networking Conf., pp. 186–197, Jan. 1996.
[8] S.-U. Guan, H.-Y. Yu, and J.-S. Yang, A Prioritized Petri Net Model and Its Application in Distributed Multimedia System IEEE Trans. Computers, vol. 47, no. 4, pp. 477-481, Apr. 1998.
[9] V. Hakkoymaz and G. Ozsoyoglu, “A Constraint-Driven Approach to Automate the Organization and Playout of Presentation in Multimedia Databases,” Multimedia Tools and Applications, vol. 4, 1997.
[10] C.L. Hamblin, “Instants and Intervals,” Stadium Generale, vol. 27, pp. 127–134, 1971.
[11] Netscape, Inc., Netscape Enterprise Server. product/enterpriseindex.html.
[12] J. Kurose, “Open Issues and Challenges in Providing Quality of Service Guarantees in High Speed Networks,” ACM Computer Comm. Rev., vol. 23, no. 1, pp. 6–15, Jan. 1993.
[13] L. Li, A. Karmouch, and N.D. Georganas, “Multimedia Teleorchestra with Independent Sources: Part 1 and Part 2,” ACM Spinger-Verlag J. Multimedia Systems, vol. 4, no. 1, 1994.
[14] T. Little and A. Ghafoor, "Synchronization and Storage for Multimedia Objects," IEEE J. Selected Areas in Comm., vol. 8, no. 3, pp. 413-427, Apr. 1990.
[15] T. Murata, “Petri Nets: Properties, Analysis and Application,” Proc. IEEE, vol. 77, no. 4, 1989.
[16] Y. Shoham, Reasoning about Change, Time, and Causation from the Standpoint of Artificial Intelligence. Cambridge, Mass.: MIT Press, 1988.
[17] V.S. Subrahmanian, Principles of Multimedia Database Systems. Morgan Kaufmann, 1998.
[18] D. Towsley, “Providing Quality of Service in Packet Switched Networks,” Performance Evaluation of Computer and Comm. Systems, L. Donatiello and R. Nelson, eds., pp. 560–586, 1993.
[19] M. Woo, N. Qazi, and A. Ghafoor, "A Synchronization Framework for Communication of Pre-Orchestrated Multimedia Information," IEEE Network, Jan.-Feb. 1994.

Index Terms:
Digital libraries, universal access, Petri nets, multimedia.
Nabil R. Adam, Vijayalakshmi Atluri, Igg Adiwijaya, Sujata Banerjee, Richard Holowczak, "A Dynamic Manifestation Approach for Providing Universal Access to Digital Library Objects," IEEE Transactions on Knowledge and Data Engineering, vol. 13, no. 4, pp. 705-716, July-Aug. 2001, doi:10.1109/69.940742
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