Artificial Intelligence and Machine Learning – Page 53 – Communications of the ACM

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Research and Advances Nov 1 2011

The Patchmatch Randomized Matching Algorithm For Image Manipulation

This paper presents a new randomized algorithm for quickly finding approximate nearest neighbor matches between image patches. Our algorithm offers substantial performance improvements over the previous state of the art.

Connelly Barnes, Dan B Goldman, Eli Shechtman, and Adam Finkelstein

puzzle pieces

BLOG@CACM Oct 28 2011

The contributions and personality of John McCarthy, one of the pioneers of computer science.

Bertrand Meyer

News Oct 25 2011

AI Pioneer John Mccarthy, 1927-2011

Artificial intelligence pioneer and Lisp creator John McCarthy, who received the A.M. Turing Award in 1971, passed away on October 23. He was 84.

Jack Rosenberger

John McCarthy

News Oct 1 2011

Seeing Is Not Enough

A new DARPA program is teaching cameras visual intelligence — how to spot and understand human behavior.

Tom Geller

Mind's Eye project

News Oct 1 2011

Improving Brain-Computer Interfaces

Researchers are demonstrating advances in restorative BCI systems that are giving paralyzed individuals more effective ways to communicate, move, and interact with their environment.

Kirk L. Kroeker

brain-computer interface researcher Dawn Taylor

Research and Advances Oct 1 2011

Computing For the Masses

A new paradigm is needed to cope with the application, technology, and discipline challenges to our computing profession in the coming decades.

Zhiwei Xu and Guojie Li

Computing for the Masses, illustration

Research and Advances Oct 1 2011

Technical Perspective: A Better Way to Learn Features

A typical machine learning program uses weighted combinations of features to discriminate between classes or to predict real-valued outcomes. The art of machine learning is in constructing the features, and a radically new method of creating features constitutes a major advance.

Geoffrey E. Hinton

Research and Advances Oct 1 2011

Technical Perspective: Power Efficiency as the #1 Design Constraint

Moore's Law, and associated observations by Bob Dennard, describe key technical foundations of the semiconductor industry. Taking a step back from these insightful assertions, we can see an even bigger picture emerge related to energy usage and power consumption.

Charles Moore

Research and Advances Oct 1 2011

Technical Perspective: Visual Reconstruction

Nearly 460,000 Flickr pictures were used to create detailed three-dimensional geometry and colors of famous landmarks and monuments in Rome, Venice, and Dubrovnik. To computer vision researchers, these visual reconstructions are a dream come true.

Carlo Tomasi

Research and Advances Oct 1 2011

Unsupervised Learning of Hierarchical Representations with Convolutional Deep Belief Networks

There has been much interest in unsupervised learning of hierarchical generative models such as deep belief networks (DBNs); however, scaling such models to full-sized, high-dimensional images remains a difficult problem.

Honglak Lee, Roger Grosse, Rajesh Ranganath, and Andrew Y. Ng

geometric patterns

Research and Advances Oct 1 2011

Understanding Sources of Ineffciency in General-Purpose Chips

To better understand what improvement in processor efficiency is possible, we quantify the performance and energy overheads of a 720p HD H.264 encoder running on a CMP system. We explore methods to eliminate these overheads by transforming the CPU into a specialized system for H.264 encoding.

micro circuit image

Research and Advances Oct 1 2011

Building Rome in a Day

We present a system that can reconstruct 3D geometry from large, unorganized collections of photographs. Our experimental results demonstrate that it is possible to reconstruct city-scale image collections with more than a hundred thousand images in less than a day.

the Coliseum

Research and Advances Sep 1 2011

Protecting Users of the Cyber Commons

Establish a global cyber "neighborhood watch" enabling users to take defensive action to protect their operations.

Stephen J. Lukasik

Protecting Users of the Cyber Commons

Research and Advances Sep 1 2011

Realizing the Future of Wireless Data Communications

Technologies are available to unlock radio spectrum as consumers need it.

Craig Partridge

U.S. frequency allocations of the radio spectrum

News Sep 1 2011

A Breakthrough in Algorithm Design

Computer scientists at Carnegie Mellon University have devised an algorithm that might be able to solve a certain class of linear systems much more quickly than today's fastest solvers.

Kirk L. Kroeker

retinal image segmentation

Opinion Sep 1 2011

In Praise of ‘Wilkes, Wheeler, and Gill’

Sixty years ago, Maurice Wilkes, David Wheeler, and Stanley Gill produced the first textbook on programming: The Preparation of Programs for an Electronic Digital Computer. It was a publication that spearheaded the software revolution.

Martin Campbell-Kelly

steel cabinet which held the EDSAC subroutine library

Research and Advances Sep 1 2011

Quantitative Analysis of Real-Time Systems Using Priced Timed Automata

Timed automata and their extensions allow for analysis of a wide range of performance and optimization problems.

Patricia Bouyer, Uli Fahrenberg, Kim G. Larsen, and Nicolas Markey

Quantitative Analysis of Real-time Systems Using Priced Timed Automata, illustration

News Aug 1 2011

A New Benchmark For Artificial Intelligence

Computers are unable to defeat the world's best Go players, but that may change with the application of a new strategy that promises to revolutionize artificial intelligence.

Kirk L. Kroeker

Go board

News Aug 1 2011

Supercomputing’s Exaflop Target

The twin challenges of parallelism and energy consumption are enlivening supercomputers' progress.

Tom Geller

K computer

News Aug 1 2011

Life, Translated

The Holy Grail of language translation is to develop a machine-based system that can handle the task transparently and accurately.

Samuel Greengard

smartphone

Practice Aug 1 2011

The Robustness Principle Reconsidered

In 1981, Jon Postel formulated the Robustness Principle. Although described for implementations of TCP, it was quickly accepted as a good proposition for implementing network protocols in general. It's simple, easy to understand, and intuitively obvious. But is it correct?

Eric Allman

Be Conservative in What You Do, Be Liberal in What You Accept From Others

Practice Aug 1 2011

Computing Without Processors

Heterogeneous systems allow us to target our programming to the appropriate environment.

Satnam Singh

Computing Without Processors, illustration

Research and Advances Aug 1 2011

Cognitive Computing

Unite neuroscience, supercomputing, and nanotechnology to discover, demonstrate, and deliver the brain's core algorithms.

Macaque Monkey and white-matter graph

News Jul 1 2011

Weighing Watson’s Impact

Does IBM's Watson represent a distinct breakthrough in machine learning and natural language processing or is the 2,880-core wunderkind merely a solid feat of engineering?

Kirk L. Kroeker

IBM's Watson machine

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