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Communications of the ACM

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An edited collection of advanced computing news from Communications of the ACM, ACM TechNews, other ACM resources, and news sites around the Web.


How to Stay Anonymous Online
From ACM TechNews

How to Stay Anonymous Online

New technology for protecting anonymity online provides stronger security guarantees but uses bandwidth much more efficiently than previous anonymity networks.

How to Stay Anonymous Online
From ACM News

How to Stay Anonymous Online

Anonymity networks protect people living under repressive regimes from surveillance of their Internet use. But the recent discovery of vulnerabilities in the most...

Researchers Discover New Way to Turn Electricity Into Light, ­sing Graphene
From ACM TechNews

Researchers Discover New Way to Turn Electricity Into Light, ­sing Graphene

Researchers have discovered a sheet of graphene can cause an electric current to surpass the speed of decelerated light and rapidly generate a focused beam. 

'super Mario Brothers' Is Hard
From ACM TechNews

'super Mario Brothers' Is Hard

Researchers found the problem of solving a level in the "Super Mario Brothers" video game is as challenging as the most vexing problems in the PSPACE complexity...

Automatic Bug Finder
From ACM TechNews

Automatic Bug Finder

Researchers have moved closer to enabling symbolic execution of applications written via programming frameworks. 

We Know Where You Live
From ACM TechNews

We Know Where You Live

Researchers have demonstrated that snoopers armed with little sophisticated technology can expose the home and workplace addresses of Twitter users. 

Ingestible Origami Robot
From ACM TechNews

Ingestible Origami Robot

Researchers have demonstrated an origami robot that can unfold from a ingestible capsule and use external magnetic fields to navigate across the stomach wall.

Can Technology Help Teach Literacy in Poor Communities?
From ACM TechNews

Can Technology Help Teach Literacy in Poor Communities?

Three studies have found tablet use effective in improving performance on standardized tests of reading preparedness by children in economically disadvantaged countries...

Self-Driving Cars, Meet Rubber Duckies
From ACM TechNews

Self-Driving Cars, Meet Rubber Duckies

A course in the Massachusetts Institute of Technology Computer Science and Artificial Intelligence Laboratory aimed to create a fleet of duckie-adorned self-driving...

Robotic Consensus
From ACM News

Robotic Consensus

Planning algorithms for teams of robots fall into two categories: centralized algorithms, in which a single computer makes decisions for the whole team, and decentralized...

Experiencing ­nderwater Worlds, Virtually
From ACM TechNews

Experiencing ­nderwater Worlds, Virtually

Dhruv Jain led the creation of a scuba-diving simulator as part of his Amphibian virtual reality project. 

First-Ever 3d Printed Robots Made of Both Solids and Liquids
From ACM TechNews

First-Ever 3d Printed Robots Made of Both Solids and Liquids

Researchers have developed "printable hydraulics," a technique for three-dimensional printing of robots involving simultaneously printing solid and liquid materials...

Phone-Based Laser Rangefinder Works Outdoors
From ACM TechNews

Phone-Based Laser Rangefinder Works Outdoors

Researchers have developed an infrared depth-sensing system, built from a smartphone with a $10 laser attached to it, that works indoors and outdoors. 

Browsing in Public
From ACM TechNews

Browsing in Public

The new Eyebrowse system enables Web users to share self-selected aspects of their online activity with their friends and the general public. 

Enabling Human-Robot Rescue Teams
From ACM TechNews

Enabling Human-Robot Rescue Teams

Researchers say they have developed a new way of modeling robot collaboration. 

Crunching Quantum Code
From ACM TechNews

Crunching Quantum Code

Researchers have developed a quantum computer design featuring an array of superconducting islands on top of a topological insulator. 

Hack-Proof Rfid Chips
From ACM TechNews

Hack-Proof Rfid Chips

Researchers at the Massachusetts Institute of Technology and Texas Instruments have developed a virtually hack-proof radio-frequency identification chip.

A Virtual 'guide Dog' For Navigation
From ACM TechNews

A Virtual 'guide Dog' For Navigation

Massachusetts Institute of Technology researchers have modified an algorithm for processing three-dimensional camera data, with power conservation in mind. 

Energy-Friendly Chip Can Perform Powerful Artificial-Intelligence Tasks
From ACM TechNews

Energy-Friendly Chip Can Perform Powerful Artificial-Intelligence Tasks

Massachusetts Institute of Technology researchers  this week introduced a new chip that implements neural networks.

Recognizing Correct Code
From ACM TechNews

Recognizing Correct Code

A new machine-learning system can analyze repairs made to open source programs, learn their general properties, and produce new repairs for other programs. 
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