This projects proposed a hierarchical classification strategy for Amazon products. Classification strategy and the inference efficiency were the two focuses. A strategy to apply general classification algorithms to hierarchical classification problem was proposed. Parallel programing and hashing techniques were applied to improve inference efficiency.

The Intelligent Systems Division (ISD) of the National Institute of Standards and Technology (NIST) has been researching new concepts in robotic cranes for several years. These concepts use the basic idea of the Stewart platform parallel link manipulator. The unique feature of the NIST approach is to use cables as the parallel links and to use winches as the actuators. Based on this idea, a rev...

In this short paper I sketch out a problem, which is rarely recognized by designers of programing languages. Null values are a source of many problems and run-time errors as well as some incoherences in language and data model design. I propose a nice and simple solution altering the semantics of variables declarations and give some additional information to the compiler and verifier.