Results 11 - 20 of 105,356

Adaptive socio-recommender system for open-corpus e-learning. In Doctoral consortium of the third international conference on adaptive hypermedia and adaptive web-based systems

by Rosta Farzan , 2004
"... Abstract. With the increase popularity of online education, the task of providing the right information to the right users has become a real challenge. Adaptive Hypermedia has been established as one solution to this challenge. However, many adaptation techniques are well suited for closed-corpus an ..."
Abstract - Cited by 3 (0 self) - Add to MetaCart
-corpus and are not compatible in open-corpus situation. Our solution for open-corpus adaptive navigation support is Social Adaptive Navigation Support (SANS). The most noticeable form of SANS could be offered through tracking visiting behavior of users, which we call traffic-based SANS. However, the fact that students visited

Offering collaborative-like recommendations when data is sparse: The case of attraction-weighted information filtering. In Adaptive hypermedia and adaptive web-based systems

by Arnaud De Bruyn, C. Lee Giles, David M. Pennock , 2004
"... Abstract. We propose a low-dimensional weighting scheme to map information filtering recommendations into more relevant, collaborative filtering-like recommendations. Similarly to content-based systems, the closest (most similar) items are recommended, but distances between items are weighted by att ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
Abstract. We propose a low-dimensional weighting scheme to map information filtering recommendations into more relevant, collaborative filtering-like recommendations. Similarly to content-based systems, the closest (most similar) items are recommended, but distances between items are weighted

Semantic Web-based Adaptive Hypermedia

by Lora Aroyo, Paul De Bra, Vadim Chepegin
"... Adaptive Hypermedia constitutes a large portion of the Web nowadays. Issues of personalization and adaptation become crucial for the efficient handling of the information on the Internet. However, current hypertext reference architectures still lack appropriate modularization and expressiveness in o ..."
Abstract - Cited by 2 (1 self) - Add to MetaCart
of knowledge engineering in the context of Semantic Web can contribute to the better applicability, reusability and shareability of adaptive Web-based systems. We propose a modular Semantic Web-based Adaptive Hypermedia architecture as a service-oriented framework for adaptive Web-based systems. The main goal

Agile Application-Aware Adaptation for Mobility

by Brian D. Noble, M. Satyanarayanan, Dushyanth Narayanan, James Eric Tilton, Jason Flinn, Kevin R. Walker - SOSP-16 , 1997
"... In this paper we show that application-aware adaptation, a collaborative partnership between the operating system and applications, offers the most general and effective approach to mobile information access. We describe the design of Odyssey, a prototype implementing this approach, and show how it ..."
Abstract - Cited by 507 (32 self) - Add to MetaCart
In this paper we show that application-aware adaptation, a collaborative partnership between the operating system and applications, offers the most general and effective approach to mobile information access. We describe the design of Odyssey, a prototype implementing this approach, and show how

Speaker verification using Adapted Gaussian mixture models

by Douglas A. Reynolds, Thomas F. Quatieri, Robert B. Dunn - Digital Signal Processing , 2000
"... In this paper we describe the major elements of MIT Lincoln Laboratory’s Gaussian mixture model (GMM)-based speaker verification system used successfully in several NIST Speaker Recognition Evaluations (SREs). The system is built around the likelihood ratio test for verification, using simple but ef ..."
Abstract - Cited by 1010 (42 self) - Add to MetaCart
In this paper we describe the major elements of MIT Lincoln Laboratory’s Gaussian mixture model (GMM)-based speaker verification system used successfully in several NIST Speaker Recognition Evaluations (SREs). The system is built around the likelihood ratio test for verification, using simple

Fab: Content-based, collaborative recommendation

by Marko Balabanovic, Yoav Shoham - Communications of the ACM , 1997
"... Fab is a recommendation system designed to help users sift through the enormous amount of information available in the World Wide Web. Operational since Dec. 1994, this system combines the content-based and collaborative methods of recommendation in a way that exploits the advantages of the two appr ..."
Abstract - Cited by 682 (0 self) - Add to MetaCart
Fab is a recommendation system designed to help users sift through the enormous amount of information available in the World Wide Web. Operational since Dec. 1994, this system combines the content-based and collaborative methods of recommendation in a way that exploits the advantages of the two

The algorithmic analysis of hybrid systems

by R. Alur, C. Courcoubetis, N. Halbwachs , T. A. Henzinger, P.-H. Ho, X. Nicollin , A. Olivero , J. Sifakis , S. Yovine - THEORETICAL COMPUTER SCIENCE , 1995
"... We present a general framework for the formal specification and algorithmic analysis of hybrid systems. A hybrid system consists of a discrete program with an analog environment. We model hybrid systems as nite automata equipped with variables that evolve continuously with time according to dynamica ..."
Abstract - Cited by 778 (71 self) - Add to MetaCart
to dynamical laws. For verification purposes, we restrict ourselves to linear hybrid systems, where all variables follow piecewise-linear trajectories. We provide decidability and undecidability results for classes of linear hybrid systems, and we show that standard program-analysis techniques can be adapted

Managing Energy and Server Resources in Hosting Centers

by Jeffrey S. Chase, Darrell C. Anderson, Prachi N. Thakar, Amin M. Vahdat - In Proceedings of the 18th ACM Symposium on Operating System Principles (SOSP , 2001
"... Interact hosting centers serve multiple service sites from a common hardware base. This paper presents the design and implementation of an architecture for resource management in a hosting center op-erating system, with an emphasis on energy as a driving resource management issue for large server cl ..."
Abstract - Cited by 574 (37 self) - Add to MetaCart
service. Experimental results from a prototype confirm that the system adapts to offered load and resource avail-ability, and can reduce server energy usage by 29 % or more for a typical Web workload. 1.

A Fast File System for UNIX

by Marshall Kirk Mckusick, William N. Joy, Samuel J. Leffler, Robert S. Fabry - ACM Transactions on Computer Systems , 1984
"... A reimplementation of the UNIX file system is described. The reimplementation provides substantially higher throughput rates by using more flexible allocation policies that allow better locality of reference and can be adapted to a wide range of peripheral and processor characteristics. The new file ..."
Abstract - Cited by 565 (6 self) - Add to MetaCart
A reimplementation of the UNIX file system is described. The reimplementation provides substantially higher throughput rates by using more flexible allocation policies that allow better locality of reference and can be adapted to a wide range of peripheral and processor characteristics. The new

A Case for End System Multicast

by Yang-hua Chu, Sanjay G. Rao, Srinivasan Seshan, Hui Zhang - in Proceedings of ACM Sigmetrics , 2000
"... Abstract — The conventional wisdom has been that IP is the natural protocol layer for implementing multicast related functionality. However, more than a decade after its initial proposal, IP Multicast is still plagued with concerns pertaining to scalability, network management, deployment and suppor ..."
Abstract - Cited by 1290 (24 self) - Add to MetaCart
-to-end delays than IP Multicast. In this paper, we study these performance concerns in the context of the Narada protocol. In Narada, end systems selforganize into an overlay structure using a fully distributed protocol. Further, end systems attempt to optimize the efficiency of the overlay by adapting
Results 11 - 20 of 105,356