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
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
Technical Perspective: One Size Fits All: An Idea Whose Time Has Come and Gone
Beginning in the early to mid-1980s the relational model of data has dominated the DBMS landscape. Moreover, descendents of...
From Communications of the ACM
Breaking the Memory Wall in MonetDB
In this paper, we report how research around the MonetDB database system has led to a redesign of database architecture in order to take advantage of modern hardware...
From Communications of the ACM
Polaris: A System For Query, Analysis, and Visualization of Multidimensional Databases
In this paper, we address these demands by presenting the Polaris formalism, a visual query language for precisely describing a wide range of table-based graphical...
From Communications of the ACM
Technical Perspective: Safeguarding Online Information Against Failures and Attacks
Users need storage that is highly reliable (it is not lost) and highly available (accessible when needed). Guaranteeing...
From Communications of the ACM
Technical Perspective: The Polaris Tableau System
Jim Gray nominated the Polaris paper for the Research Highlights section and wrote the first draft of this Technical Perspective in November 2006. David Patterson...
From Communications of the ACM
Zyzzyva: Speculative Byzantine Fault Tolerance
A longstanding vision in distributed systems is to build reliable systems from unreliable components. An enticing formulation of this vision is Byzantine fault-tolerant...
From Communications of the ACM
Technical Perspective: Computational Photography on Large Collections of Images
This paper wil strike a familiar chord with anyone who has ever taken a picture. The problem is easy to understand— replacing unwanted parts of a photograph.
From Communications of the ACM
Scene Completion Using Millions of Photographs
What can you do with a million images? In this paper, we present a new image completion algorithm powered by a huge database of photographs gathered from the Web...
From Communications of the ACM
Technical Perspective: Transactional Memory in the Operating System
The long tradition of building ever-faster processors is ending, with the computer industry instead putting more...
From Communications of the ACM