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Association for Computing Machinery

Magazine: Spring 2013 | Volume 19, No. 3

'Information wants to be free'

COLUMN: Letter from the editors

'Information wants to be free'

By CACM Staff

HTML | In the Digital Library
Tags: Document types

Scientific computing

How to review CS papers

Student contests

Nairobi-Kenya ACM-W student chapter

Drones and the digital panopticon

DEPARTMENT: Blogs

Drones and the digital panopticon

The XRDS blog highlights a range of topics from conference overviews to privacy and security, from HCI to cryptography. Selected blog posts, edited for print, will be featured in every issue. Please visit xrds.acm.org/blog to read each post in its entirety.

By Lea Rosen

HTML | In the Digital Library
Tags: Codes of ethics, Document types, General and reference, Intellectual property, Publishing

Data security in the cloud environment

Scientific computing in the age of complexity

SECTION: Features

Scientific computing in the age of complexity

Climate modeling has come a long way since von Neumann declared it a problem too hard for pencil and paper, but tailor-made for the new digital computers. As the models and computers both evolve toward ever-greater complexity, they are changing our notions of digital simulation itself.

By V. Balaji

HTML | In the Digital Library
Tags: Earth and atmospheric sciences, History of computing

Electrical modeling and simulation for stockpile stewardship

Electrical modeling and simulation for stockpile stewardship

A survey of radiation modeling and circuit simulation approaches that are essential for stockpile stewardship.

By Heidi K. Thornquist, Eric R. Keiter, Sivasankaran Rajamanickam

HTML | In the Digital Library
Tags: Modeling and simulation, Physical sciences and engineering, Simulation types and techniques

A look inside the earth

A look inside the earth

On the computational resources and techniques required for imaging the Earth's crust.

By Gregory A. Newman

HTML | In the Digital Library
Tags: Earth and atmospheric sciences, Multiple instruction, multiple data

Challenges and methods in large-scale computational chemistry applications

Challenges and methods in large-scale computational chemistry applications

Interesting problems in computational chemistry from a computer science perspective.

By Jeff R. Hammond

HTML | In the Digital Library
Tags: Chemistry

Expanders, tropical semi-rings, and nuclear norms

Massive streaming data analytics

Massive streaming data analytics

Analyzing massive streaming graphs efficiently requires new algorithms, data structures, and computing platforms.

By Jason Riedy, David A. Bader

HTML | In the Digital Library
Tags: Graph theory

Linguistic structure prediction with the sparseptron

Linguistic structure prediction with the sparseptron

Recent advances in natural language processing bring together rich representations and scalable machine learning algorithms.

By Noah A. Smith, André F. T. Martins

HTML | In the Digital Library
Tags: Natural language processing

How much (execution) time and energy does my algorithm cost?

How much (execution) time and energy does my algorithm cost?

Do we need to design algorithms differently if our goal is to save energy, rather than time or space? This article presents a simple and speculative thought experiment that suggests when and why the answer could be "yes."

By Jee Whan Choi, Richard W. Vuduc

HTML | In the Digital Library
Tags: Arithmetic and datapath circuits, Process management

High-performance computing and the cloud

High-performance computing and the cloud

Infrastructure clouds offer tremendous potential for scientific users, however, they face numerous challenges that must be addressed before they are widely adopted by scientific communities.

By Paul Marshall, Henry Tufo, Kate Keahey

HTML | In the Digital Library
Tags: Computer systems organization, Information retrieval, Information storage systems

Dream applications of verifiable computational results

Dream applications of verifiable computational results

A new system allows researchers to discover, reuse, cite, and experiment upon any computational result that is published with a Verifiable Result Identifier.

By Matan Gavish, David Donoho, Amos Onn

HTML | In the Digital Library
Tags: Digital libraries and archives, Information retrieval

Profile Arthur S. Bland<br />High performance at Oak Ridge laboratory

Keio-NUS CUTE center<br />Singapore

Supercomputers