Systems Architecture Commons^™

Randomized Routing On Fat-Trees, Ronald I. Greenberg

Ronald Greenberg

Fat-trees are a class of routing networks for hardware-efficient parallel computation. This paper presents a randomized algorithm for routing messages on a fat-tree. The quality of the algorithm is measured in terms of the load factor of a set of messages to be routed, which is a lower bound on the time required to deliver the messages. We show that if a set of messages has load factor lambda on a fat-tree with n processors, the number of delivery cycles (routing attempts) that the algorithm requires is O(lambda+lgnlglgn) with probability 1-O(1/ …

Histogram Of Oriented Phase And Gradient (Hopg) Descriptor For Improved Pedestrian Detection, Hussin Ragb, Vijayan K. Asari

Vijayan K. Asari

This paper presents a new pedestrian detection descriptor named Histogram of Oriented Phase and Gradient (HOPG) based on a combination of the Histogram of Oriented Phase (HOP) features and the Histogram of Oriented Gradient features (HOG). The proposed descriptor extracts the image information using both the gradient and phase congruency concepts. Although the HOG based method has been widely used in the human detection systems, it lacks to deal effectively with the images impacted by the illumination variations and cluttered background. By fusing HOP and HOG features, more structural information can be identified and localized in order to obtain more …

Crowdsourced Earthquake Early Warning, Sarah Minson, Benjamin Brooks, Craig Glennie, Jessica Murray, John Langbein, Susan Owen, Thomas Heaton, Robert Iannucci, Darren Hauser

Robert A Iannucci

Earthquake early warning (EEW) can reduce harm to people and infrastructure from earthquakes and tsunamis, but it has not been implemented in most high earthquake-risk regions because of prohibitive cost. Common consumer devices such as smartphones contain low-cost versions of the sensors used in EEW. Although less accurate than scientific-grade instruments, these sensors are globally ubiquitous. Through controlled tests of consumer devices, simulation of an Mw (moment magnitude) 7 earthquake on California’s Hayward fault, and real data from the Mw 9 Tohoku-oki earthquake, we demonstrate that EEW could be achieved via crowdsourcing.

Mobile Computing: Challenges And Opportunities For Autonomy And Feedback, Ole J. Mengshoel, Bob Iannucci, Abe Ishihara

Ole J Mengshoel

At The Tone, The Time Will Be... Unknown – A Perspective On The Evolution Of Time In Telecommunications, Robert Iannucci

Robert A Iannucci

No abstract provided.

Embedded Virtual Machines For Robust Wireless Control And Actuation, Miroslav Pajic, Rahul Mangharam

Rahul Mangharam

Embedded wireless networks have largely focused on open-loop sensing and monitoring. To address actuation in closed-loop wireless control systems there is a strong need to re-think the communication architectures and protocols for reliability, coordination and control. As the links, nodes and topology of wireless systems are inherently unreliable, such time-critical and safety-critical applications require programming abstractions and runtime systems where the tasks are assigned to the sensors, actuators and controllers as a single component rather than statically mapping a set of tasks to a specific physical node at design time. To this end, we introduce the Embedded Virtual Machine (EVM), …

Fast Energy Loss Computation And Fuzzy-Based Shunt Capacitor Insertion, Philadelphia University

Philadelphia University, Jordan

No abstract provided.

Embedded Systems As Datacenters, Robert Iannucci

Robert A Iannucci

No abstract provided.

Platform Thinking In Embedded Systems, Robert Iannucci

Robert A Iannucci

No abstract provided.

Configuring Client Software Using Remote Notification Us:6219698, Robert Iannucci, Chris Weikart

Robert A Iannucci

No abstract provided.

Computer System For Simulating Physical Processes Using Multiple Integer State Vectors Us:5594671, Hudong Chen, Peter Churchill, Robert Iannucci, Kim Molvig, Gregory Papadopoulos, Stephen Remondi, Christopher Teixeira, Kenneth Traub

Robert A Iannucci

No abstract provided.

System For Synchronizing Execution By A Processing Element Of Threads Within A Process Using A State Indicator Us:5553305, Robert Iannucci, Steven Gregor

Robert A Iannucci

No abstract provided.

Multithreaded Computer Architecture: A Summary Of The State Of The Art, Robert Iannucci, Guang Gao, Robert Halstead, Burton Smith

Robert A Iannucci

No abstract provided.

High Performance Memory System Pct:Ep0199134, Robert Iannucci

Robert A Iannucci

No abstract provided.

Parallel Machines: Parallel Machine Languages, Robert Iannucci

Robert A Iannucci

No abstract provided.

Method And Apparatus For Division Pct:Ep0075745, Robert Iannucci, James Kleinsteiber

Robert A Iannucci

No abstract provided.

High Performance Memory System Utilizing Pipelining Techniques Us:4685088, Robert Iannucci

Robert A Iannucci

No abstract provided.

Method And Apparatus For Division Employing Associative Memory Us:4466077, Robert Iannucci, James Kleinsteiber

Robert A Iannucci

No abstract provided.