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Displaying 1-50 out of 96 total
Analyzing Performance of Web-Based Metrics for Evaluating Reliability and Maintainability of Hypermedia Applications
Found in: Broadband Communications, Information Technology & Biomedical Applications, International Conference on
By Sanjeev Dhawan, Rakesh Kumar
Issue Date:November 2008
pp. 376-383
This paper has been designed to identify the Web metrics for evaluating the reliability and maintainability of hypermedia applications. In the age of Information and Communication Technology (ICT), Web and the Internet, have brought significant changes in ...
 
Replication of Biomolecular Techniques for Implementing Intelligent Systems
Found in: Broadband Communications, Information Technology & Biomedical Applications, International Conference on
By Sanjeev Dhawan, Rakesh Kumar
Issue Date:November 2008
pp. 405-412
In this paper, it has been shown that computational jobs, such as encoding of input data and AND, OR operation, can work on the Computers (by using Computer databases and algorithms for the purpose of speeding up and enhancing biological research). By comb...
 
WDSN keynote talk:
Found in: Dependable Systems and Networks Workshops
By Rakesh Kumar
Issue Date:June 2011
pp. xiv-xvi
All of computing today relies on an abstraction where software expects the hardware to behave flawlessly for all inputs under all conditions. While the abstraction worked historically due to the relatively small magnitude of variations in hardware and envi...
   
Performance Analysis under the Influence of Jamming for WiMAX System
Found in: Emerging Applications of Information Technology, International Conference on
By Rakesh Kumar Jha, Suresh V. Limkar, Upena D. Dalal
Issue Date:February 2011
pp. 292-297
This paper presents simulation of WiMAX based system under jamming. The performance of the system was found out to greatly differ with the use of different jamming signals, allowing central areas to be identified, where system development should be focused...
 
Low Power Single Amplifier Voltage Regulator
Found in: 2014 27th International Conference on VLSI Design
By Sanjay Kumar Wadhwa,Jaideep Banerjee,Rakesh Kumar Gupta
Issue Date:January 2014
pp. 466-469
A self starting low power voltage regulator circuit having single amplifier for gain stage of band gap reference and error amplifier for driver stage is proposed. The proposed circuit is well suited for low power applications as it consumes only 10uA quies...
 
Fuzzy Entropy on Restricted Fuzzy Linear Regression Model with Cross Validation and Applications
Found in: 2012 International Conference on Advances in Computing and Communications (ICACC)
By Tanuj Kumar,Nitin Gupta,Rakesh Kumar Bajaj
Issue Date:August 2012
pp. 5-8
The concept of fuzzy regression model with fuzzy regression coefficients was first introduced in \cite{[1]}, \cite{[2]} and \cite{[3]}. A fuzzy number can be uniquely determined through its position and entropy as described in \cite{[4]}. Hence, by using t...
 
Dynamic Selective Devectorization for Efficient Power Gating of SIMD Units in a HW/SW Co-Designed Environment
Found in: 2013 25th International Symposium on Computer Architecture and High Performance Computing (SBAC-PAD)
By Rakesh Kumar,Alejandro Martinez,Antonio Gonzalez
Issue Date:October 2013
pp. 81-88
Leakage power is a growing concern in current and future microprocessors. Functional units of microprocessors are responsible for a major fraction of this power. Therefore, reducing functional unit leakage has received much attention in the recent years. P...
 
High Performance, Energy Efficient Chipkill Correct Memory with Multidimensional Parity
Found in: IEEE Computer Architecture Letters
By Xun Jian,John Sartori,Henry Duwe,Rakesh Kumar
Issue Date:July 2013
pp. 39-42
It is well-known that a significant fraction of server power is consumed in memory; this is especially the case for servers with chipkill correct memories. We propose a new chipkill correct memory organization that decouples correction of errors due to loc...
 
An algorithmic approach to error localization and partial recomputation for low-overhead fault tolerance
Found in: 2013 43rd Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN)
By Joseph Sloan,Rakesh Kumar,Greg Bronevetsky
Issue Date:June 2013
pp. 1-12
The increasing size and complexity of massively parallel systems (e.g. HPC systems) is making it increasingly likely that individual circuits will produce erroneous results. For this reason, novel fault tolerance approaches are increasingly needed. Prior f...
 
Adaptive Reliability Chipkill Correct (ARCC)
Found in: 2013 IEEE 19th International Symposium on High Performance Computer Architecture (HPCA)
By Xun Jian,Rakesh Kumar
Issue Date:February 2013
pp. 270-281
Chipkill correct is an advanced type of error correction in memory that is popular among servers. Large field studies of memories have shown that chipkill correct reduces uncorrectable error rate by 4X [11] to 36X [12] compared to SECDED. Currently, there ...
 
Multi-sensor navigation algorithm using monocular camera, IMU and GPS for large scale augmented reality
Found in: 2012 IEEE International Symposium on Mixed and Augmented Reality (ISMAR)
By Taragay Oskiper,Supun Samarasekera,Rakesh Kumar
Issue Date:November 2012
pp. 71-80
Camera tracking system for augmented reality applications that can operate both indoors and outdoors is described. The system uses a monocular camera, a MEMS-type inertial measurement unit (IMU) with 3-axis gyroscopes and accelerometers, and GPS unit to ac...
 
Algorithmic approaches to low overhead fault detection for sparse linear algebra
Found in: 2012 42nd Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN)
By Joseph Sloan,Rakesh Kumar,Greg Bronevetsky
Issue Date:June 2012
pp. 1-12
The increasing size and complexity of High-Performance Computing systems is making it increasingly likely that individual circuits will produce erroneous results, especially when operated in a low energy mode. Previous techniques for Algorithm - Based Faul...
   
Algorithmic techniques for robust applications
Found in: 2012 IEEE 18th International On-Line Testing Symposium (IOLTS 2012)
By Rakesh Kumar
Issue Date:June 2012
pp. 168
Much recent research suggests significant power and energy benefits of relaxing correctness constraints in future processors. Such processors with relaxed constraints have often been referred to as stochastic processors. In this talk, I will discuss three ...
 
Identification of Type-2 Fuzzy Models for Time-Series Forecasting Using Particle Swarm Optimization
Found in: Communication Systems and Network Technologies, International Conference on
By Mamta Khosla,Rakesh Kumar Sarin,Moin Uddin
Issue Date:May 2012
pp. 259-264
This paper presents the fuzzy model identification framework, where Particle Swarm Optimization (PSO) algorithm has been used as an optimization engine for building Type-2 fuzzy models from the available chaotic Mackeyâ€
 
Power balanced pipelines
Found in: High-Performance Computer Architecture, International Symposium on
By John Sartori,Ben Ahrens,Rakesh Kumar
Issue Date:February 2012
pp. 1-12
Since the onset of pipelined processors, balancing the delay of the microarchitectural pipeline stages such that each microarchitectural pipeline stage has an equal delay has been a primary design objective, as it maximizes instruction throughput. Unfortun...
 
Security Analysis of Identity Based Cryptography and Certificate Based in Wimax Network Using Omnet++ Simulator
Found in: Advanced Computing & Communication Technologies, International Conference on
By Naveen Chauhan,Rakesh Kumar Yadav
Issue Date:January 2012
pp. 509-512
WiMAX is a promising technology that provides high data throughput with low delays for various user types and modes of operation. These advantages make WiMAX applicable both for infrastructure purposes and end-client usage. Since WiMAX is presented as a ne...
 
An Efficient Weighted Algorithm for Web Information Retrieval System
Found in: Computational Intelligence and Communication Networks, International Conference on
By Rohit Agarwal,K.V. Arya,Shashi Shekhar,Rakesh Kumar
Issue Date:October 2011
pp. 126-131
Web Usage mining, also known as Web Log mining, is an application of data mining algorithms to Web access logs to find trends and regularities in Web users' traversal patterns. The results of Web Usage Mining have been used in improving Web site design, bu...
 
A WEBIR Crawling Framework for Retrieving Highly Relevant Web Documents: Evaluation Based on Rank Aggregation and Result Merging Algorithms
Found in: Computational Intelligence and Communication Networks, International Conference on
By Shashi Shekhar,K.V. Arya,Rohit Agarwal,Rakesh Kumar
Issue Date:October 2011
pp. 83-88
Finding relevant information on the web is an ongoing problem. Commercial search engines like Google rely on sophisticated algorithms to index huge collection of web pages to make them accessible to user queries. Users, however, are still frequently overlo...
 
A hardware acceleration technique for gradient descent and conjugate gradient
Found in: Application Specific Processors, Symposium on
By David Kesler,Biplab Deka,Rakesh Kumar
Issue Date:June 2011
pp. 94-101
Application Robustification, a promising approach for reducing processor power, converts applications into numerical optimization problems and solves them using gradient descent and conjugate gradient algorithms [1]. The improvement in robustness, however,...
 
Geo-Encryption - A New Direction to Secure Traditional SSL VPN
Found in: Information Technology: New Generations, Third International Conference on
By Suresh V. Limkar, Rakesh Kumar Jha, Shilpa Pimpalkar, Santosh Darade
Issue Date:April 2011
pp. 1070-1071
A novel improved VPN (Virtual Private Network) system based on SSL (Secure Socket Layer) protocol is discussed to overwhelm the defect of traditional SSL VPN. The concept, critical technique and working process of the geo-secured SSL based VPN are presente...
 
MOPED: Orchestrating interprocess message data on CMPs
Found in: High-Performance Computer Architecture, International Symposium on
By Junli Gu, Steven S. Lumetta, Rakesh Kumar, Yihe Sun
Issue Date:February 2011
pp. 111-120
Future CMPs will combine many simple cores with deep cache hierarchies. With more cores, cache resources per core are fewer, and must be shared carefully to avoid poor utilization due to conflicts and pollution. Explicit motion of data in these architectur...
 
Spam Mail Classification Using Combined Approach of Bayesian and Neural Network
Found in: Computational Intelligence and Communication Networks, International Conference on
By Manjusha K., Rakesh Kumar
Issue Date:November 2010
pp. 145-149
Unsolicited commercial e-mail (spam) has shocked economies world over and is threatening the productivity. In this paper, an attempt has been made to classify email spam by combining Bayesian network and neural network classification approach. The header i...
 
A Performance Comparison of Routing Protocols for Security Issue in Wireless Mobile Ad Hoc Networks
Found in: Emerging Trends in Engineering & Technology, International Conference on
By Rakesh Kumar Jha, Suresh V. Limkar, Upena D. Dalal
Issue Date:November 2010
pp. 825-830
Mobile Ad-hoc Networks (MANETs) allow wireless nodes to form a network without requiring a fixed Infrastructure Dynamic Source Routing (DSR) for mobile Ad Hoc network. It is a reactive source routing protocol for mobile IP network. Temporally-Ordered Routi...
 
On the Theory of Stochastic Processors
Found in: Quantitative Evaluation of Systems, International Conference on
By Parasara Sridhar Duggirala, Sayan Mitra, Rakesh Kumar, Dean Glazeski
Issue Date:September 2010
pp. 292-301
Traditional architecture design approaches hide hardware uncertainties from the software stack through over-design, which is often expensive in terms of power consumption. The recently proposed quantitative alternative of stochastic computing requires circ...
 
Simulation Study of Buffering in Manhattan Street Network in NS2
Found in: Computational Intelligence, Communication Systems and Networks, International Conference on
By Ravinder Bahl, Rakesh Kumar
Issue Date:July 2010
pp. 188-190
The paper presents the Performance Analysis of Manhattan Street Network (MSN).Improvement of performance at the destination node by applying different buffering capacities at the routers is demonstrated. The results using NS2 simulator are produced. It can...
 
A numerical optimization-based methodology for application robustification: Transforming applications for error tolerance
Found in: Dependable Systems and Networks, International Conference on
By Joseph Sloan, David Kesler, Rakesh Kumar, Ali Rahimi
Issue Date:July 2010
pp. 161-170
There have been several attempts at correcting process variation induced errors by identifying and masking these errors at the circuit and architecture level [10, 27]. These approaches take up valuable die area and power on the chip. As an alternative, we ...
 
Security Comparison of Wired and Wireless Network with Firewall and Virtual Private Network (VPN)
Found in: Test Conference, International
By Y.P Kosta, Upena D. Dalal, Rakesh Kumar Jha
Issue Date:March 2010
pp. 281-283
Computer networks are typically a shared resource used by many applications for many different purposes. Sometimes the data transmitted between application processes is confidential, and the application users would prefer that others not be able to read it...
 
A New Performance Enhancement Technique of the Current Feedback Amplifier
Found in: Advances in Computing, Control, and Telecommunication Technologies, International Conference on
By Rakesh Kumar Singh, R.K. Nagaria
Issue Date:December 2009
pp. 695-701
An improved performance current feedback amplifier circuit referred to as CFA feedback current feedback amplifier (CCFA) is described in this paper. This circuit is developed as an augmentation to the operational current feedback amplifier which employs a ...
 
Register Multimapping: A technique for reducing register bank conflicts in processors with large register files
Found in: Application Specific Processors, Symposium on
By Nam Duong, Rakesh Kumar
Issue Date:July 2009
pp. 50-53
In this paper, we investigate Register Multimapping as a technique to reduce register bank conflicts for processors with large register files, but relatively slow clock speeds. Register multimapping involves mapping an architectural register to multiple ph...
 
Workload adaptive shared memory multicore processors with reconfigurable interconnects
Found in: Application Specific Processors, Symposium on
By Shoaib Akram, Rakesh Kumar, Deming Chen
Issue Date:July 2009
pp. 7-14
Interconnection networks for multicore processors are designed in a generic way to serve a diversity of workloads. For multicore processors, there is a considerable opportunity to achieve an improvement in performance by implementing interconnects which ad...
 
Panel: Realistic low power design: Let errors occur and correct them later or mitigate errors via design guardbanding and process control?
Found in: On-Line Testing Symposium, IEEE International
By Abhijit Chatterjee, Jacob Abraham, Adit Singh, Elie Maricau, Rakesh Kumar, Christos Papachristou
Issue Date:June 2009
pp. 129
There has been ongoing debate regarding the use of voltage overscaling along with error resilience techniques for ultra low power operation of scaled CMOS logic. The issue is whether to build enough design margin into future electronic systems so that erro...
 
Discovering class specific composite features through discriminative sampling with Swendsen-Wang Cut
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Feng Han, Ying Shan, Harpreet S. Sawhney, Rakesh Kumar
Issue Date:June 2008
pp. 1-8
This paper proposes a novel approach to discover a set of class specific “composite features” as the feature pool for the detection and classification of complex objects using AdaBoost. Each composite feature is constructed from the combination of multiple...
 
Matching vehicles under large pose transformations using approximate 3D models and piecewise MRF model
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Yanlin Guo, Cen Rao, Supun Samarasekera, Janet Kim, Rakesh Kumar, Harpreet Sawhney
Issue Date:June 2008
pp. 1-8
We propose a robust object recognition method based on approximate 3D models that can effectively match objects under large viewpoint changes and partial occlusion. The specific problem we solve is: given two views of an object, determine if the views are ...
 
Building segmentation for densely built urban regions using aerial LIDAR data
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Bogdan C. Matei, Harpreet S. Sawhney, Supun Samarasekera, Janet Kim, Rakesh Kumar
Issue Date:June 2008
pp. 1-8
We present a novel building segmentation system for densely built areas, containing thousands of buildings per square kilometer. We employ solely sparse LIDAR (Light/Laser Detection & Ranging) 3D data, captured from an aerial platform, with resolution ...
 
Real-time global localization with a pre-built visual landmark database
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Zhiwei Zhu, Taragay Oskiper, Supun Samarasekera, Rakesh Kumar, Harpreet S. Sawhney
Issue Date:June 2008
pp. 1-8
In this paper, we study how to build a vision-based system for global localization with accuracies within 10cm. for robots and humans operating both indoors and outdoors over wide areas covering many square kilometers. In particular, we study the parameter...
 
Magellan: A Search and Machine Learning-based Framework for Fast Multi-core Design Space Exploration and Optimization
Found in: Design, Automation and Test in Europe Conference and Exhibition
By Sukhun Kang, Rakesh Kumar
Issue Date:March 2008
pp. 1432-1437
In this paper, we treat multi-core processor design space exploration as an application-driven machine learning problem. We develop two machine learning-based techniques for efficiently exploring the processor design space. We observe that these techniques...
 
An Efficient Gateway Discovery in Ad Hoc Networks for Internet Connectivity
Found in: Computational Intelligence and Multimedia Applications, International Conference on
By Rakesh Kumar, Manoj Misra, Anil K. Sarje
Issue Date:December 2007
pp. 275-282
Integration of MANET with the Internet is a challenging problem. It is important that dynamically deployed wireless ad hoc networks should also gain access to Internet multimedia contents through these fixed networks. When a mobile node in an Ad Hoc networ...
 
Ten-fold Improvement in Visual Odometry Using Landmark Matching
Found in: Computer Vision, IEEE International Conference on
By Zhiwei Zhu, Taragay Oskiper, Supun Samarasekera, Rakesh Kumar, Harpreet S. Sawhney
Issue Date:October 2007
pp. 1-8
Our goal is to create a visual odometry system for robots and wearable systems such that localization accuracies of centimeters can be obtained for hundreds of meters of distance traveled. Existing systems have achieved approximately a 1% to 5% localizatio...
 
Unsupervised Learning of Discriminative Edge Measures for Vehicle Matching between Nonoverlapping Cameras
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Ying Shan, Harpreet S. Sawhney, Rakesh Kumar
Issue Date:April 2008
pp. 700-711
This paper proposes a novel unsupervised algorithm learning discriminative features in the context ofmatching road vehicles between two non-overlapping cameras. The matching problem is formulated as asame-different classification problem, which aims to com...
 
Visual Odometry System Using Multiple Stereo Cameras and Inertial Measurement Unit
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Taragay Oskiper, Zhiwei Zhu, Supun Samarasekera, Rakesh Kumar
Issue Date:June 2007
pp. 1-8
Over the past decade, tremendous amount of research activity has focused around the problem of localization in GPS denied environments. Challenges with localization are highlighted in human wearable systems where the operator can freely move through both i...
 
PEET: Prototype Embedding and Embedding Transition for Matching Vehicles over Disparate Viewpoints
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Yanlin Guo, Ying Shan, Harpreet Sawhney, Rakesh Kumar
Issue Date:June 2007
pp. 1-8
This paper presents a novel framework, Prototype Embedding and Embedding Transition (PEET), for matching objects, especially vehicles, that undergo drastic pose, appearance, and even modality changes. The problem of matching objects seen under drastic vari...
 
A Heterogeneous Feature-based Image Alignment Method
Found in: Pattern Recognition, International Conference on
By Cen Rao, Yanlin Guo, Harpreet Sawhney, Rakesh Kumar
Issue Date:August 2006
pp. 345-350
In this paper, we propose a robust heterogeneous feature based image alignment method that utilizes points, lines and regions in a unified framework. The image motion is decomposed into progressively complex components, i.e., translation, similarity, affin...
 
Learning Exemplar-Based Categorization for the Detection of Multi-View Multi-Pose Objects
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Ying Shan, Feng Han, Harpreet S. Sawhney, Rakesh Kumar
Issue Date:June 2006
pp. 1431-1438
This paper proposes a novel approach for multi-view multi-pose object detection using discriminative shapebased exemplars. The key idea underlying this method is motivated by numerous previous observations that manually clustering multi-view multi-pose tra...
 
3D Building Detection and Modeling from Aerial LIDAR Data
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Vivek Verma, Rakesh Kumar, Stephen Hsu
Issue Date:June 2006
pp. 2213-2220
This paper presents a method to detect and construct a 3D geometric model of an urban area with complex buildings using aerial LIDAR (Light Detection and Ranging) data. The LIDAR data collected from a nadir direction is a point cloud containing surface sam...
 
Shapeme Histogram Projection and Matching for Partial Object Recognition
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Ying Shan, Harpreet S. Sawhney, Bogdan Matei, Rakesh Kumar
Issue Date:April 2006
pp. 568-577
Histograms of shape signature or prototypical shapes, called shapemes, have been used effectively in previous work for 2D/3D shape matching and recognition. We extend the idea of shapeme histogram to recognize partially observed query objects from a databa...
 
Composition Trust Bindings in Pervasive Computing Service Composition
Found in: Pervasive Computing and Communications Workshops, IEEE International Conference on
By John Buford, Rakesh Kumar, Greg Perkins
Issue Date:March 2006
pp. 261-266
In pervasive computing, devices or peers may implement or compose services using services from other devices or peers, and may use components from various sources. A composition trust binding is a prescriptive set of rules which defines the combination of ...
 
Heterogeneous Chip Multiprocessors
Found in: Computer
By Rakesh Kumar, Dean M. Tullsen, Norman P. Jouppi, Parthasarathy Ranganathan
Issue Date:November 2005
pp. 32-38
Heterogeneous (or asymmetric) chip multiprocessors present unique opportunities for improving system throughput, reducing processor power, and mitigating Amdahl's law. On-chip heterogeneity allows the processor to better match execution resources to each a...
 
Vehicle Identification between Non-Overlapping Cameras without Direct Feature Matching
Found in: Computer Vision, IEEE International Conference on
By Ying Shan, Harpreet S. Sawhney, Rakesh Kumar
Issue Date:October 2005
pp. 378-385
We propose a novel method for identifying road vehicles between two non-overlapping cameras. The problem is formulated as a same-different classification problem: probability of two vehicle images from two distinct cameras being from the same vehicle or fr...
 
Interconnections in Multi-Core Architectures: Understanding Mechanisms, Overheads and Scaling
Found in: Computer Architecture, International Symposium on
By Rakesh Kumar, Victor Zyuban, Dean M. Tullsen
Issue Date:June 2005
pp. 408-419
This paper examines the area, power, performance, and design issues for the on-chip interconnects on a chip multiprocessor, attempting to present a comprehensive view of a class of interconnect architectures. It shows that the design choices for the interc...
 
Real-Time Wide Area Multi-Camera Stereo Tracking
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Tao Zhao, Manoj Aggarwal, Rakesh Kumar, Harpreet Sawhney
Issue Date:June 2005
pp. 976-983
We present a fully integrated real-time system to track humans with a network of stereo sensors over a wide area. The processing includes single camera tracking and multi-camera fusion. Each single camera detects and tracks humans in its own view and a mul...
 
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