Trust Extension For Commodity Computers
A user's trust in a single device can be extended to many other devices.
Software Engineering and Programming Languages
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Technical Perspective: The Fox and the Hedgehog
"The fox knows many things, but the hedgehog knows one big thing." Philosophers have used this line, attributed to the ancient Greek poet Archilochus, to capture the notion that a person can be either a generalist or a specialist. This distinction exists in software, too.
Lightweight Modular Staging: A Pragmatic Approach to Runtime Code Generation and Compiled DSLs
Good software engineering practice demands generalization and abstraction, whereas high performance demands specialization and concretization. These goals are at odds, and compilers only rarely translate expressive high-level programs to modern hardware platforms. Generative programming is a promising alternative.
Don’t Throw the Baby Out With the Bathwater
Nearly every day I receive an email that includes a link to a new article related to the Open Access movement. I read every one of these articles because I want to understand the different perspectives on the issue so that I can help contribute to the solution and not the problem.
Artificial intelligence pioneer Judea Pearl discusses probability, causation, the calculus of intervention, and counterfactuals.
How Steve Jobs Revolutionized Business
It is ironic that Steve Jobs, the man who focused on building consumer-friendly devices such as the iPod, iPhone, and iPad, is also radically reshaping the business world.
Hadoop has spread rapidly in the last few years as a platform for parallel computation in Java, but we believe a lot of improvement will be required for serious production use in the science domain of a large national laboratory.
Now that the sound and fury in the Open Access movement has quieted down a bit, we can revisit the arguments for open access. The basic question I would like to address is what ACM's stance should be with respect to open-access publishing models.
Meet the candidates who introduce their plans — and stands — for the Association. Please take this opportunity to vote.
Programming Goes Back to School
Broadening participation by integrating game design into middle school curricula. View a video featuring author Alexander Repenning about using games to introduce teachers and students to programming.
Shortcuts that save money and time today can cost you down the road.
Web and mobile applications are increasingly composed of asynchronous and real-time streaming services and push notifications.
Idempotence Is Not a Medical Condition
Messages may be retried. Idempotence means that's OK.
Technical Perspective: An Experiment in Determinism
It is widely held that parallel programming is far more difficult and error prone than writing sequential code. In particular, the myriad allowable interleavings of thread execution mean that different runs of a program can produce different behaviors.
Technical Perspective: Best Algorithms + Best Computers = Powerful Match
Say you want to simulate the motion over time of the stars in a galaxy to learn about how galaxies formed and why the universe appears as it does. Is it feasible on a single processor? Sadly, even using today's fastest single processor, the answer is "no."
Efficient System-Enforced Deterministic Parallelism
We introduce a new parallel programming model addressing the issues facing current methods of executing parallel programs deterministically, and use Determinator, a proof-of-concept OS, to demonstrate the model's practicality.
A Massively Parallel Adaptive Fast Multipole Method on Heterogeneous Architectures
We describe a parallel fast multipole method for highly nonuniform distributions of particles. We employ both distributed memory parallelism and shared memory parallelism to rapidly evaluate two-body nonoscillatory potentials in three dimensions on heterogeneous high performance computing architectures.
Thanks to new research initiatives, autonomous humanoid robots are inching closer to reality.
Automating Scientific Discovery
Computer scientists are teaching machines to run experiments, make inferences from the data, and use the results to conduct new experiments.
Social Media Evolution of the Egyptian Revolution
Twitter sentiment was revealed, along with popularity of Egypt-related subjects and tweeter influence on the 2011 revolution.
An n-Gram Analysis of Communications 2000?2010
Applied to almost 3,500 articles it reveals computing's (and Communications') culture, identity, and evolution.
Mobile Apps Reach Internet Tipping Point
June 2011 appears to be the first time people in the U.S. spent more time online with apps than with the Web.
Technical Perspective: Who Knows?: Searching For Expertise on the Social Web
It is difficult to remember what people had to do to find the answer to a question before the Web. One option might be to call a friend who might know the answer. This instinct to call someone is baked into the DNA of Aardvark, the social question and answering engine.
Shape the Future of Computing
ACM encourages its members to take a direct hand in shaping the future of the association. There are more ways than ever to get involved.
Get InvolvedCommunications of the ACM (CACM) is now a fully Open Access publication.
By opening CACM to the world, we hope to increase engagement among the broader computer science community and encourage non-members to discover the rich resources ACM has to offer.
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