The Internet is increasingly a platform for online services running on rack after rack of servers. With the advent of large data centers, the study of the networks that interconnect these servers has become an important topic to researchers and practitioners alike.
Research and Advances
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VL2: A Scalable and Flexible Data Center Network
VL2 is a practical network architecture that scales to support huge data centers with uniform high capacity between servers, performance isolation between services, and Ethernet layer-2 semantics.
10 Scientific Problems in Virtual Reality
Virtual Reality was one of the 14 Grand Challenges identified as awaiting engineering solutions for the 21st century announced in 2008 by the U.S. National Academy of Engineering. Here, I explore 10 related open VR challenges.
What would it take for a true personal knowledge base to generate the benefits envisioned by Vannevar Bush?
Technical Perspective: Markov Meets Bayes
The history of probabilistic sequence models dates back to Markov at the turn of the last century. Though informed by decades of research, current practices are still something of a black art.
DRAM Errors in the Wild: A Large-Scale Field Study
While a large body of work exists on DRAM in lab conditions, little has been reported on real DRAM failures in large production clusters. In this paper, we analyze measurements of memory errors in a large fleet of commodity servers over a period of 2.5 years.
Technical Perspective: DRAM Errors in the Wild
In order to advance the field, knowledge of the types of memory errors at the system level, their frequencies, and conditions that exacerbate or are unrelated to higher error rates are of critical importance.
The sequence memoizer is a new hierarchical Bayesian model for discrete sequence data that captures long range dependencies and power-law characteristics, while remaining computationally attractive.
Are the OECD Guidelines at 30 Showing Their Age?
This article briefly reviews the factors that led to production of the Guidelines on the Transborder Flows of Personal Data in the 1970s and some of the key points in them.
Vision-Based Hand-Gesture Applications
Body posture and finger pointing are a natural modality for human-machine interaction, but first the system must know what it's seeing.
Google's Web Tables and Deep Web Crawler identify and deliver this otherwise inaccessible resource directly to end users.
Technical Perspective: Sora Promises Lasting Impact
The objective of Sora is to build a software defined radio that combines the performance and fidelity of hardware platforms with the programmability and flexibility of general-purpose processors.
Path Selection and Multipath Congestion Control
This paper studies data transfers under two classes of multipath control, coordinated control where the rates over the paths are determined as a function of all paths, and uncoordinated control where the rates are determined independently over each path.
On the Move, Wirelessly Connected to the World
How to experience real-world landmarks through a wave, gaze, location coordinates, or touch, prompting delivery of useful digital information.
OpenSocial: An Enabler For Social Applications on the Web
Building on the OpenSocial API suite, developers can create applications that are interoperable within the context of different social networks.
Follow the Intellectual Property
How companies pay programmers when they move jobs and the related IP rights to offshore taxhavens.
Using Simple Abstraction to Reinvent Computing For Parallelism
The ICE abstraction may take CS from serial (single-core) computing to effective parallel (many-core) computing.
Sora: High-Performance Software Radio Using General-Purpose Multi-Core Processors
Sora, a fully programmable software radio platform on commodity PC architectures, combines the performance and fidelity of hardware software-defined radio platforms with the programmability and flexibility of general-purpose processor SDR platforms.
Technical Perspective: Multipath, A New Control Architecture For the Internet
Multipath transmission for the Internet—that is, allowing users to send some of their packets along one path and others along different paths—is an elegant solution still looking for the right problem.
What are Bayesian networks and why are their applications growing across all fields?
The Role of Conference Publications in CS
A bibliometric view of the publishing frequency and impact of conference proceedings compared to archival journal publication.
Technical Perspective: Iterative Signal Recovery From Incomplete Samples
You are given a large set of data values, and you are requested to compress, clean, recover, recognize, and/or predict it. Sounds familiar? This is the essence of the fields of signal-and image-processing, machine-learning, data-mining, and statistics in general.
The collection of computational problems having quantum interactive proof systems consists precisely of those problems solvable with an ordinary classical computer using at most a polynomial amount of memory (or QIP = PSPACE in complexity-theoretic terminology).
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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