Communications of the ACM
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How Does One Divide with Napier's Rods?
Napier's multiplication and division rods, deriving from the basic multiplication table, simplify calculations considerably.
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From BLOG@CACM
Smart Grids: Getting Personal
How many electronic devices do you own? It is tempting to answer, “Just a handful,” but the truth is much more nuanced. Here’s a simple experiment that will (quite...
From BLOG@CACM
Bridging Cultures For Collaboration
All too often, our technical curricula fail to focus on the human aspect of cross-domain collaboration. Technical skills are necessary, but not sufficient. One...
From BLOG@CACM
The End of a DBMS Era (Might Be Upon Us)
Relational database management systems (DBMSs) have been remarkably successful in capturing the DBMS marketplace. To a first approximation they are “the only game...
From BLOG@CACM
E-Commerce in Latin America
Short talk about the evolution and actual status of e-commerce in Latin America
From BLOG@CACM
Windmills in the Water
A call to the computer science community for what a research agenda might look like for the role of information and communications technologies in energy, the environment...
From BLOG@CACM
Robotics in South America
Webopedia defines robotics as: The field of computer science and engineering concerned with creating robots, devices that can move and react to sensory input. Robotics...
From BLOG@CACM
'There's an App For That,' and You Could Write It
The challenge of computing education today is convincing students that not every application is done and available for download.
From BLOG@CACM
The Great Electronic Brain and the Rhetoric of Recruitment
We rarely talk about computers as "Electronic Brains" or "Thinking Machines." That seems presumptuous or audacious today. Maybe that's exactly what we need to...
From BLOG@CACM
What Is a Good Recommendation Algorithm?
Someone may win the one million dollar Netflix Prize soon. Will the winning algorithm produce movie recommendations that people like?
From BLOG@CACM
DBMSs For Science Applications: A Possible Solution
Quite a few scientists who deal with the processing and storage of large amounts of data are unhappy with relational DBMSs. Here are several reasons why—and a possible...
From BLOG@CACM
Google Android Authentication
I recently saw a Google Android phone at HotMobile 2009 and was intrigued by the drawing-based authentication mechanism built in. Basically, there's a 3x3 grid...
From BLOG@CACM