Adam NR, Yesha Y (1996) Strategic directions in electronic commerce and digital libraries: towards a digital Agora. ACM Comput Surv 28(4):818--835  Home/Search   Document Not in Database   Summary   ACM   TOC   Related Articles   Check

....Digital Library Authorization System (DLAS) DLAS employs a content based authorization model, called Digital Library Authorization Model (DLAM) proposed earlier [1] Key words Access Control, Digital Libraries, Credentials. 1 Introduction One of the challenges encountered in a digital library [2] environment is securing information. On one hand, the system must protect information against malicious use and corruption, and must ensure the privacy of its subjects. On the other hand, it should provide open access so that vendors and information producers can add update information and ....

N. Adam et al. Strategic Directions in Electronic Commerce and Digital Libraries: Towards a Digital Agora. ACM Computing Surveys, 28(4), December 1996.

.... ) L L L L L S S S S j w y x, j = 1, 2, k2 , 15g) F F F F F Q Q Q Q u u u u u w y x, u = 1, 2, k3 , 15h) F F F F F S S S S v v v v v w y x, v = 1, 2, k 4 , 15i) x, y 0, 15j) [0,1], 15k) where (15d) and (15e) denote the membership functions of decision y controlled by the follower; 15h) and (15i) denote the membership functions of follower s objectives; w denotes the weights assigned to objectives. The min operator is also used here to aggregate the preferred levels of ....

....is collaborative, The follower then need to solve the following problem: Max (17) Subject to c C, 18a) 1.4 x 1 0.9 x 2 0.8 y 1 0.3 y 2 359.75 1684.75, 18b) x 1 x 2 416.316 800, 18c) 0.4 x 1 0.2 x 2 1.8 y 1 0. 2 y 2 510.4 998.4, 18d) y 1 260 170, 18e) [0,1], 18f) where (18a) denotes the original constraint set. 18b) and (18c) are membership functions of leader s objectives; 18d) and (18e) are membership functions of follower s objectives. The compromise solution of above problem is (Q L , S L , Q F , S F ) 1015.294, 1498.7086, ....

Adam, N. and Yesha, Y. (1996). "Strategic Directions in Electronic Commerce and Digital Libraries: Toward a Digital Agora," ACM Computing Survey, Vol. 28, No. 4, pp. 818-835.

....and matching entries from the database are displayed. This capability is available in practically all digital libraries, including those offered by the ACM [16] and IEEE Computer Society [20] Somewhat more sophisticated search options are being investigated in the NSF digital libraries initiative [7, 12]. 3 In fact, digital libraries may become just an indexing, search, and access service, rather than repositories of actual data. This, again, is a result of the nature of the Internet. Any individual with access to the Internet can generate and provide information. The role of the digital ....

....again, is a result of the nature of the Internet. Any individual with access to the Internet can generate and provide information. The role of the digital library is then to index all this information, support searches for useful data, and handle the commercial aspects of buying and selling data [12, 4, 3]. 2.3.2 Internet search engines While digital libraries may be viable for handling official publications in a specific domain, they cannot handle the whole internet. The Internet is huge and growing at an exponential rate. Tools for classifying information are not keeping up with it, and often ....

N. Adam, Y. Yesha, et al., "Strategic directions in electronic commerce and digital libraries: towards a digital agora". ACM Comput. Surv. 28(4), pp. 818--835, Dec 1996.

....in traditional databases. Indeed, in a recent workshop on strategic directions in computing research, cost management was identified as one of the six major grand challenges that have to be overcome in order to make digital libraries and electronic commerce widely accepted and used (see [N. Adam and et al. 1996]) In this paper we address the problem of cost optimization for clients that access digital libraries. The cost optimization problem arises when a client has a choice of cost models and retrieval protocols. This choice may be available from a single vendor of information, or from multiple vendors ....

N. Adam, Y. Y. and et al. 1996. Strategic directions in electronic commerce and digital libraries: Towards a digital agora. ACM Computing Surveys 28, 4 (Dec), 818--835.

....technology. Often only certain components of a database system are needed as building blocks that have to be integrated with other technologies such as workflow, multimedia, or security technologies; a prominent example for an application class with this characteristic is electronic commerce [4]. These building blocks should therefore be light weight, easy to use, composable and adaptable, require zero administration and be self tuning. These aspects already constitute strategic research avenues that are databaseoriented but also interact with other computer science and application ....

Adam, N., Yesha, Y., et al.: Strategic Directions in Electronic Commerce and Digital Libraries, ACM Computing Surveys Vol.28 No.4, December 1996, pp. 818--835.

....them in the network. Therefore, having a new constraint we can move through the network regardless of which knowledge we are using and nd possible interpretation for the new problem [27] 5. 2 Electronic commerce concerns Some current issues of EC and representative projects are mentioned in [2, 3], and [22] The generic EC model may be viewed as a set of actors using media performing business actions. The actors are providers (dealers, merchants, etc. and consumers (users, information seekers) The media is composed of multimedia objects (documents, images, software, etc. which ....

....on identi cation and implementation of EC functions and business processes. At this moment, there is no proposed model other than ours to cover the whole set of actors, media and actions. Furthermore, in the other projects, the consumers are assumed to have a wide variety of domain expertise [3]. We, on the contrary, assume that the customers are ordinary and casual users and provide them with tools and techniques, borrowed from AI, to share the expertise with them. We think that implementing and applying AI techniques to EC is a new and challenging task for both elds. In this project ....

N. Adam, and Y. Yesha, \Strategic Directions in Electronic Commerce and Digital Libraries: Towards a Digital Agora", ACM Computing Surveys, vol. 28, no. 4, pp. 818835, (1996).

....in traditional databases. Indeed, in a recent workshop on strategic directions in computing research, cost management was identified as one of the six major grand challenges that have to be overcome in order to make digital libraries and electronic commerce widely accepted and used (see [AY]) In this paper we address the problem of cost optimization for clients that access digital libraries. The cost optimization problem arises when a client has a choice of cost models and retrieval protocols. This choice may be available from a single vendor of information, or from multiple vendors ....

N. Adam, Y. Yesha, et al., "Strategic Directions in Electronic Commerce and Digital Libraries: Towards a Digital Agora" ACM Computing Surveys, Vol. 28(4), Dec. 1996, pp. 818-835.

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Adam NR, Yesha Y (1996) Strategic directions in electronic commerce and digital libraries: towards a digital Agora. ACM Comput Surv 28(4):818--835

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N. R. Adam and Y. Yesha. Strategic Directions in Electronic Commerce and Digital Libraries: Towards a Digital Agora. ACM Computing Surveys, 28(4):818--835, December 1996.

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Adams N, Yesha Y. Strategic direction in electronic commerce and digital libraries: Towards a digital agora. ACM Computer Surveys 1996;28:818--835.

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N. Adam et al., "Strategic Directions in Electronic Commerce and Digital Libraries: Towards a Digital Agora," ACM Computing Surveys, vol. 28, no. 4, Dec. 1996, pp. 818--835.

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