Third-order relativistic dissipative hydrodynamics (2009)
We expand the entropy current up to the third order in the shear stress tensor $\pi^{\alpha\beta}$ and derive a novel third-order evolution equation for $\pi^{\alpha\beta}$. This equation is solved...
Development of relativistic shock waves in viscous gluon matter (2009)
Bouras, I., Molnar, E., Niemi, H., Xu, Z., El, A., Fochler, O., ...
To investigate the formation and the propagation of relativistic shock waves in viscous gluon matter we solve the relativistic Riemann problem using a microscopic parton cascade. We demonstrate the...
Dissipation, Collective Flow and Mach Cones at RHIC (2009)
Bouras, I., El, A., Fochler, O., Uphoff, J., Xu, Z., Greiner, C.
Fast thermalization and a strong buildup of elliptic flow of QCD matter as found at RHIC are understood as the consequence of perturbative QCD (pQCD) interactions within the 3+1 dimensional parton...
Relativistic shock waves in viscous gluon matter (2009)
Bouras, I., Molnar, E., Niemi, H., Xu, Z., El, A., Fochler, O., ...
We solve the relativistic Riemann problem in viscous gluon matter employing a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock waves by varying the shear...
Viscous Effects on Elliptic Flow and Shock Waves (2008)
Bouras, I., Cheng, L., El, A., Fochler, O., Uphoff, J., Xu, Z., ...
Fast thermalization and a strong buildup of elliptic flow of QCD matter as found at RHIC are understood as the consequence of perturbative QCD (pQCD) interactions within the 3+1 dimensional parton...
Pre'publications du De'partement de Mathe'matiques (2008)
Rochelleavenue Michel Cre'peau, A. El
Fonctions minimales pour des ine'galite's deSobolev anisotropiques.
Avenue Michel Crépeau, La Rochelle Cedex, Sobolev Anisotropiques, A. El, ...
Fonctions minimales pour des inégalités de
1 Browsing Large Digital Library Collections using Classification Hierarchies (2007)
S. Geffner, D. Agrawal, A. El, Abbadi T. Smith
Abstract Summarization of intermediary query result sets plays an important role when users browse through digital library collections. Summarization enables users to quickly digest the results of...
Quadtree Based JBIG Compression (2007)
B. Fowler, R. Arps, A. El, Gamal D. Yang
A JBIG compliant, quadtree based, lossless image compression algorithm is described. In terms of the number of arithmetic coding operations required to code an image, this algorithm is signi cantly...
Heavy Ion Collisions at the LHC - Last Call for Predictions (2007)
Abreu, S, Borghini, N, Akkelin, V, Alam, J, Albacete, J L, Andronic, A, ...
This writeup is a compilation of the predictions for the forthcoming Heavy Ion Program at the Large Hadron Collider, as presented at the CERN Theory Institute 'Heavy Ion Collisions at the LHC - Last...
Heavy Ion Collisions at the LHC - Last Call for Predictions (2007)
Abreu, S., Akkelin, S. V., Alam, J., Albacete, J. L., Andronic, A., Antonov, D., ...
This writeup is a compilation of the predictions for the forthcoming Heavy Ion Program at the Large Hadron Collider, as presented at the CERN Theory Institute 'Heavy Ion Collisions at the LHC - Last...
Shear Viscosity to Entropy within a Parton Cascade (2007)
The shear viscosity is calculated by means of the perturbative kinetic partonic cascade BAMPS with CGC initial conditons for various saturation momentum scale Q_s. eta/s ~ 0.15 stays approximately...
Thermalization of gluon matter including ggggg interactions (2006)
Within a pQCD inspired kinetic parton cascade we simulate the space time evolution of gluons which are produced initially in a heavy ion collision at RHIC energy. The inelastic gluonic interactions...
A formal study of interaction in multi-agent systems (1999)
This paper presents an original approach to model, analyze, and design interactions in multi-agent systems. It combines two complementary paradigms: observation in distributed systems and interaction...
A Formal Study of Interactions in Multi-agent Systems (1999)
This paper presents an original approach to model, analyze, and design interactions in multi-agent systems. It combines two complementary paradigms: observation in distributed systems and interaction...
Smart indexes for efficient browsing of library collections (1998)
S. Geffner, D. Agrawal, A. El, Abbadi T. Smith, M. Larsgaard
To enable efficient browsing and interactive querying of very large collections, such as those found in digital libraries, it is essential to provide users with summaries of query result sets. Smart...
Smart Indexes for Efficient Browsing of Library Collections (1998)
S. Geffner, D. Agrawal, A. El Abbadi, T. Smith, A. El, Abbadi T. Smith, ...
To enable efficient browsing and interactive querying of very large collections, such as those found in digital libraries, it is essential to provide users with summaries of query result sets. Smart...
A Brief Survey Of Tertiary Storage Systems And Research (1997)
S. Prabhakar, D. Agrawal, A. El Abbadi, A. Singh, A. El, Abbadi A. Singh
This report summarizes current state of the art in tertiary storage systems. We also summarize the current technologies and research efforts to integrate tertiary storage in operating systems,...
Scalable Access within the Context of Digital Libraries (1997)
X. Cheng, R. Dolin, M. Neary, S. Prabhakar, K. V. Ravi, Kanth D. Wu, ...
This paper presents a summary of some of the work-in-progress within the Alexandria Digital Library Project. In particular, we present scalable methods of locating information at different levels...
Efficient View Maintenance at Data Warehouses (1997)
D. Agrawal, A. El Abbadi, A. Singh, A. El, Abbadi A. Singh, T. Yurek
We present incremental view maintenance algorithms for a data warehouse derived from multiple distributed autonomous data sources. We begin with a detailed framework for analyzing view maintenance...
A Brief Survey Of Tertiary Storage Systems And Research (1997)
Prabhakar Agrawal, S. Prabhakar, D. Agrawal, A. El, Abbadi A. Singh
This report summarizes current state of the art in tertiary storage systems. We also summarize the current technologies and research efforts to integrate tertiary storage in operating systems,...
Tertiary Storage: Current Status and Future Trends (1996)
S. Prabhakar, D. Agrawal, A. El Abbadi, A. Singh, A. El, Abbadi A. Singh
This report summarizes current state of the art in tertiary storage systems. We begin with a comprehensive discussion of magnetic tape and optical storage technologies. This is followed by a...
Advanced Transaction Models in Workflow Contexts (1996)
G. Alonso, D. Agrawal, A. El Abbadi, M. Kamath, A. El, Abbadi M. Kamath, ...
In recent years, numerous transaction models have been proposed to address the problems posed by advanced database applications, but only a few of these models are being used in commercial products....
Pharos: A Scalable Distributed Architecture for Locating Heterogeneous Information Sources (1996)
R. Dolin, D. Agrawal, A. El Abbadi, L. Dillon, A. El, Abbadi L. Dillon
Pharos is a scalable distributed architecture for locating heterogeneous information sources. The system incorporates a hierarchical metadata structure into a multi-level retrieval system. Queries...
Managing Concurrent Activities in Collaborative Environments (1995)
D. Agrawal, J. L. Bruno, A. El Abbadi, V. Krishnaswamy, A. El, Abbadi V. Krishnaswamy
An approach to support activities in collaborative databases is proposed. This approach merges flexible transaction models from collaborative environments and semantics based correctness criteria. A...
Adaptive Filtering And Indexing For Image Databases (1995)
A.D. Alexandrov, W.Y. Ma, A. El Abbadi, B.S. Manjunath, A. El
In this paper we combine image feature extraction with indexing techniques for efficient retrieval in large texture images databases. A 2D image signal is processed using a set of Gabor filters to...
Relative Serializability: An Approach for Relaxing the Atomicity of Transactions (1994)
D. Agrawal, J. L. Bruno, A. El Abbadi, V. Krishnaswamy, A. El, Abbadi V. Krishnaswamy
In the presence of semantic information, serializability is too strong a correctness criterion and unnecessarily restricts concurrency. We use the semantic information of a transaction to provide...