Thursday, April 9, 2009

Robot Biologist

Adam is a robot developed by Welsh Aberystwyth University researchers which combines artificial intelligence (AI), robotics and automation to independently conduct and analyse biological laboratory research.

"What's new and exciting about Adam is [it is] the first time we've managed to show that a computer can not only think up new scientific ideas, but experimentally test them and decide whether they're true," said Ross King, a computer science professor and lead researcher at Aberystwyth University, "Adam makes up its own mind what to do. It decides what experiments to do, what to test." He says that for other lab experiments the hardware is already in place, the only step needed is to change the software.

The artificial intelligence alone spans three computers which holds the databases and analytical software to enable Adam to think. For the yeast experiment, Adam was loaded with databases which hold known information relating to yeasts and organisms. Adam compared all fields in the database to find the areas of missing information from which he devised 20 hypotheses.

Adam's AI is connected to robotic arms, sensors, incubators and cameras which enable Adam to start over 1,000 individual experiments every day and follow their progress over a week.

A part of the process is that Adam's AI can cycle and analyze the results of the experiments as well doing routine repetitious lab work. Following Adam's testing, King's team manually tested three of Adam's hypotheses and found that the robot's conclusions were correct, and each was a breakthrough to the scientific community.

Adam has spawned discussion amongst researchers. William Melek, an assistant professor of mechanical engineering at Ontario's University of Waterloo, has noted that to set up the AI needed for subsequent experiments involving new biological variables and criteria, the human expertise would be time consuming to customize it. The usefulness would be limited therefore to the allotment of human input needed to set up Adam.

David Waltz of Columbia University and Bruce Buchanan of the University of Pittsburgh say that "For the foreseeable future, the prospect of using automated systems as assistants holds vast promise as these assistants are becoming not only faster but much broader in their capabilities -- more knowledgeable, more creative, and more self-reflective," They note the potential of such lab assistants which may more efficiently process the research data.

It was reported that Adam cost about $1million in production costs and this was weighed against the costs of hiring lab techs. King said, We made many mistakes and learned from Adam. Eve is a much cleaner design."

Eve is the second AI computer under development by Professor King's research team. Eve's artificial intelligence will be enhanced to analyze compounds needed for medicinal drugs which may treat killer diseases such as malaria.

Monday, April 6, 2009

Mindreading Robots


At its headquarters in Tokyo, Japan, Honda Motor Company demonstrated on Tuesday technology which links a person's thoughts with robots.

The operator wears a helmet which scans for electric currents stimulated by brain activity, but also uses infrared sensors to detect changes in blood flows in the head. The information is sent to a computer, which can then execute robotic movements such as opening the trunk of the vehicle or turning on the car's air conditioning. The commands usually take just seconds to reach the robot.

Honda also released a video where a humanoid robot named Asimo was operated by a person wearing the helmet. The employee was stated to be thinking about raising his right hand, after which Asimo moved its right arm.

Honda states that it could be quite some time before the technology is ready to go live due to difficulties such as the human brain's liability to become distracted, creating mixed thought patterns. A related problem is the amount of focus required by the operator.

"Practical uses are still way into the future." said Honda Research Institute Japan Co executive, Yasuhisa Arai. "I'm [just] talking about dreams today."