Communications of the ACM
Latest Research
From Communications of the ACM
Apprenticeship Learning For Helicopter Control
Autonomous helicopter flight is widely regarded to be a highly challenging control problem. As helicopters are highly unstable and exhibit complicated dynamical...
From Communications of the ACM
Technical Perspective: The Ultimate Pilot Program
In one scene from The Matrix, two leaders of the human resistance are trapped on the roof of a skyscraper. The only means of escape is by helicopter, which neither...
From Communications of the ACM
Two Hardware-Based Approaches For Deterministic Multiprocessor Replay
Modern computer systems are inherently nondeterministic due to a variety of events that occur during an execution. The lack of repeatability that arises from this...
From Communications of the ACM
Technical Perspective: Software and Hardware Support For Deterministic Replay of Parallel Programs
From Communications of the ACM
Securing Frame Communication in Browsers
Many Web sites embed third-party content in frames, relying on the browser's security policy to protect against malicious content. However, frames provide insufficient...
From Communications of the ACM
Technical Perspective: Reframing Security For the Web
The web has brought exciting new functionality while simultaneously requiring new mechanisms to make it secure. We've...
From Communications of the ACM
Scalable Synchronous Queues
In a thread-safe concurrent queue, consumers typically wait for producers to make data available. In a synchronous queue, producers similarly wait for consumers...
From Communications of the ACM
Technical Perspective: Highly Concurrent Data Structures
The advent of multicore architectures has produced a Renaissance in the study of highly concurrent data structures.
From Communications of the ACM
Lest We Remember: Cold-Boot Attacks on Encryption Keys
DRAM retains its contents for several seconds after power is lost. Although DRAM becomes less reliable when it is not refreshed, it is not immediately erased, and...
From Communications of the ACM
Technical Perspective: A Chilly Sense of Security
Many systems rely on keeping a master key secret. But technological progress can undermine old assumptions.
From Communications of the ACM
Integrating Nand Flash Devices Onto Servers
In this paper, we examine the use of Flash storage in the server domain. Wear-out has the potential to limit the use of Flash in this domain. To seriously consider...
From Communications of the ACM
Technical Perspective: Integrating Flash Devices
Flash memory nowadays seems to be in every discussion about system architecture. Sure enough, flash memory boasts...
From Communications of the ACM
Relative Fitness Modeling
Relative fitness is a new approach to modeling the performance of storage devices. In contrast to a conventional model, which predicts the performance of an application's...
From Communications of the ACM
Technical Perspective: Disk Array Models For Automating Storage Management
Large disk arrays are everywhere. When we shop at an Internet retailer, the product and account data come from a disk...
From Communications of the ACM
Learning and Detecting Emergent Behavior in Networks of Cardiac Myocytes
We address the problem of specifying and detecting emergent behavior in networks of cardiac myocytes, spiral electric waves in particular, a precursor to atrial...
From Communications of the ACM
Technical Perspective: Where Biology Meets Computing
Alan Turing died in 1954 in his laboratory after eating a cyanide-laced apple. During his last years, Turing had become interested in bio-chemical systems. He had...
From Communications of the ACM
Error Correction Up to the Information-Theoretic Limit
Ever since the birth of coding theory almost 60 years ago, researchers have been pursuing the elusive goal of constructing the "best codes," whose encoding introduces...
From Communications of the ACM
Technical Perspective: The Beauty of Error-Correcting Codes
Error-correcting codes are the means by which we compensate for interference in communication, and are essential for the accurate transmission and storage of digital...
From Communications of the ACM
The Complexity of Computing a Nash Equilibrium
Traditionally, computational problems fall into two classes: those that have a polynomial-time algorithm and those that are NP-hard. However, the concept of NP-hardness...
From Communications of the ACM