Vector quantization is a technique used in (usually lossy) data compression. The basic idea is to code a multidimensional vector space into a sub-space with lower dimension. The lower-space vector requires less storage space and the data is thus compressed. The transformation into the sub-space is usually achieved through projection or by using a code-book.
... consist of just three elements: carbon, hydrogen, and oxygen. The ratio varies, but not by much. Usually, the molar amount of carbon is the same as or slightly ...