How errors in data, software, and methodology can teach us how to do better
In 2006, a paper in Nature Medicine suggested a novel and potentially revolutionary method for predicting patient responses to cancer therapies using gene signatures. The finding piqued the interest...
Sep, 01, 2011
Bringing models closer to reality
When the ill-fated space shuttle Columbia launched on January 16, 2003, a large piece of foam fell off and hit the left wing. Alerted of the impact, NASA engineers used a computer model to predict...
Oct, 19, 2012
Transparent peer review, replication studies, and journals of negative results all suggest change is on the horizon
As I was writing this editorial, I learned about yet another scientific paper being retracted. This time it was a genetics paper in Science, one of the hundreds of retractions that the blog...
Sep, 01, 2011
Computing using time steps -- a necessary approximation
Time flows like a continuous, steady river. And it moves forward—never back. These facts create inherent challenges for computer simulations of biological molecules in motion.
It would...
Jun, 19, 2013
Computers and human experts duke it out over who is better at diagnosing disease, interpreting images, or predicting protein structure
Dorothy Rosenthal tenses over her microscope, peering at the problematic nucleus on the Pap smear yet again. “It’s abnormal,” she decides, and then hesitates. “No, it’s...
Jul, 01, 2006
Computer vision program rivals the human ability to rapidly recognize objects in a complex picture
Our brains can recognize most of the things we pass on an evening stroll: Cars, buildings, trees, and people all register even at a great distance or from an odd angle. Now, a new computer vision...
Jul, 01, 2007
When you step on the gas pedal, you expect acceleration (and lots of it). Stomp on the brake to come safely to a stop in the rain. Finger the power-assisted steering wheel and the car obeys. Make a...
Oct, 01, 2009
Using computation, researchers narrow the search space for directed evolution; guide mutagenesis; and create de novo enzymes
Enzymes are among nature’s crowning achievements: they accelerate chemical reactions, making life possible. People have co-opted natural enzymes for industrial use for thousands of years (think...
Feb, 19, 2013
"Fold-It" players find best protein conformations to fight cancer
When it comes to folding proteins, even modern supercomputers don’t always get things exactly right. Enter FoldIt, an online video game that harnesses the human brain’s natural pattern-...
Jan, 01, 2010
In a classic cartoon, a physician offers a second opinion from his computer. The patient looks horrified: How absurd to think that a computer could have better judgment than a human doctor! But...
Jan, 01, 2010
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