Now showing items 1-20 of 947

    • Accurate Anchor-Free Node Localization in Wireless Sensor Networks 

      Youssef, Adel; Younis, Mohamed; Agrawala, Ashok (2006-02-10)
      There has been a growing interest in the applications of wireless sensor networks in unattended environments. In such applications, sensor nodes are usually deployed randomly in an area of interest. Knowledge of accurate ...
    • Accurate computation of Galerkin double surface integrals in the 3-D boundary element method 

      Adelman, Ross; Gumerov, Nail A.; Duraiswami, Ramani (2015-05-29)
      Many boundary element integral equation kernels are based on the Green’s functions of the Laplace and Helmholtz equations in three dimensions. These include, for example, the Laplace, Helmholtz, elasticity, Stokes, and ...
    • An Accurate Time-Management Unit for Real-Time Processors 

      Kailas, Krishnan K.; Agrawala, Ashok K. (1998-10-15)
      Time management is an important aspect of real-time computation. Traditional high performance processors provide little or no support for management of time. In this report, we propose a time-management unit which can ...
    • ACE: A Novel Software Platform to Ensure the Integrity of Long Term Archives 

      Song, Sangchul; JaJa, Joseph (2007-01-31)
      We develop a new methodology to address the integrity of long term archives using rigorous cryptographic techniques. A prototype system called ACE (Auditing Control Environment) was designed and developed based on this ...
    • Active Harmony: Towards Automated Performance Tuning 

      Tapus, Cristian; Chung, I-Hsin; Hollingsworth, Jeffrey K. (2002-08-01)
      In this paper we present the Active Harmony automated runtime tuning system. We describe the interface used by programs to make applications tunable. We present the Library Specification Layer which helps program library ...
    • Active Logic and Heim's Rules for Updating Discourse Context 

      Gurney, John; Perlis, Don; Purang, Khemdut (1998-10-15)
      Discourse unfolds in time, giving rise to a cascade of belief changes in the listener. Yet this temporal evolution of discourse and belief is typically ignored in theoretical treatments of discourse. It has been claimed ...
    • Active Logic Applied to Cancellation of Gricean Implicture 

      Purang, Khemdut; Perlis, Don; Gurney, John (1998-10-15)
      Dialog proceeds over time, during which inferred beliefs come and go in the listener. Yet this temporal aspect of dialog and belief is typically ignored in theoretical treatments of dialog. Using a simple example of a ...
    • Active Logics: A Unified Formal Approach to Episodic Reasoning 

      Elgot-Drapkin, Jennifer; Kraus, Sarit; Miller, Michael; Nirkhe, Madhura; Perlis, Donald (1999-10-14)
      Artificial intelligence research falls roughly into two categories: formal and implementational. This division is not completely firm: there are implementational studies based on (formal or informal) theories (e.g., CYC, ...
    • Active Proxy-G: Optimizing the Query Execution Process in the Grid 

      Andrade, Henrique; Kurc, Tahsin; Sussman, Alan; Saltz, Joel (2002-05-22)
      The Grid environment facilitates collaborative work and allows many users to query and process data over geographically dispersed data repositories. Over the past several years, there has been a growing interest in ...
    • AD (Attacker Defender) Game 

      Kochut, Andrzej; Agrawala, Ashok K.; Larsen, Ronald L.; Shankar, A. Udaya (2002-01-31)
      Information Dynamics is a framework for agent-based systems that gives a central position to the role of information, time, and the value of information. We illustrate system design in the Information Dynamics Framework ...
    • Adapting to Route-demand and Mobility (ARM) in Ad hoc Network Routing 

      Ahn, Sungjoon; Shankar, A. Udaya (2001-05-10)
      We present ARM (Adapting to Route-demand and Mobility), a control mechanism that allows any proactive routing protocol to dynamically adapt in a totally distributed manner to changes in node mobility and workload ...
    • Adaptive Cost Estimation for Client-Server based Heterogeneous Database Systems 

      Yao, Zhaohui; Chen, Chungmin Melvin; Roussopoulos, Nick (1998-10-15)
      In this paper, we propose a new method for estimating query cost in client-server based heterogeneous database management system. The cost estimation parameters are adjusted by an Adaptive Cost Estimation (ACE) module ...
    • Adaptive Database Buffer Allocation Using Query Feedback 

      Chen, Chungmin Melvin; Roussopoulos, Nick (1998-10-15)
      In this paper, we propose the concept of using query execution feedback for improving database buffer management. A query feedback model which adaptively quantifies the page fault characteristics of all query access ...
    • Adaptive Hindi OCR Using Generalized Hausdorff Image Comparison 

      Ma, Huanfeng; Doermann, David (2003-09-25)
      In this paper, we present an adaptive Hindi OCR using generalized Hausdor image comparison implemented as part of a rapidly retargetable language tool reort. The system includes: script identification, character ...
    • Adaptive Probabilistic Search (APS) for Peer-to-Peer Networks 

      Tsoumakos, Dimitrios; Roussopoulos, Nick (2003-02-27)
      Peer-to-Peer networks are gaining increasing attention from both the scientific and the large Internet user community. Popular applications utilizing this new technology offer many attractive features to a growing number ...
    • Adaptive Pull-Based Data Freshness Policies for Diverse Update Patterns 

      Bright, Laura; Gal, Avigdor; Raschid, Louiqa (2004-01-29)
      An important challenge to effective data delivery in wide area environments is maintaining the data freshness of objects using solutions that can scale to a large number of clients without incurring significant server ...
    • Adaptive Replication in Peer-to-Peer Systems 

      Gopalakrishnan, Vijay; Silaghi, Bujor; Bhattacharjee, Bobby; Keleher, Pete (2003-08-01)
      Recent work on peer-to-peer systems has demonstrated the ability to deliver low latencies and good load balance when demand for data items is relatively uniform. We describe a lightweight, adaptive, and system-neutral ...
    • Adaptive Runtime Support for Direct Simulation Monte Carlo Methods on Distributed Memory Architectures 

      Moon, Bongki; Saltz, Joel (1998-10-15)
      In highly adaptive irregular problems such as many Particle-In-Cell (PICJ codes and Dimet Simulation Monte Carlo (DSMCJ codes, data access patterns may vary from time step to time step. This fluctuation may hinder ...
    • Adaptive Use of Iterative Methods in Interior Point Methods for Linear Programming 

      Wang, Weichung; O'Leary, Dianne P. (1998-10-15)
      In this work we devise efficient algorithms for finding the search directions for interior point methods applied to linear programming problems. There are two innovations. The first is the use of updating of preconditioners ...
    • Adaptive Use of Iterative Methods in Predictor-Corrector Interior Point Methods for Linear Programming 

      Wang, Weichung; O'Leary, Dianne P. (1999-04-06)
      In this work we devise efficient algorithms for finding the search directions for interior point methods applied to linear programming problems. There are two innovations. The first is the use of updating of preconditioners ...