Novel polymer

Computer scientists at Harvard have put powerful probabilistic reasoning algorithms in the hands of bioengineers and have shown that they could be used in chemical reactions. These algorithms, which use a technique called message passing inference on factor graphs, are a mathematical coupling of ideas from graph theory and probability. They represent the state of the art in machine learning and are already critical components of everyday tools ranging from search engines and fraud detection to error correction in mobile phones. They might now be used to construct smart drugs that act as diagnostic agents and only implement their therapeutic capacity at the appropriate time and place when disease is present.