is tracked by us since April, 2011. Over the time it has been ranked as high as 705 299 in the world, while most of its traffic comes from Indonesia, where it reached as high as 18 540 position. It was owned by several entities, from Azrill Bayma to Prasetyo Azman of PT. BIRO KLASIFIKASI INDONESIA (Persero) , it was hosted by Infrastructure , PT Antar Mitra Prakarsa and others. While ONLINENIC INC. was its first registrar, now it is moved to Web Commerce Communications Limited dba .
Most algorithms describe an individual instance whose category is to be predicted using a feature vector of individual, measurable properties of the instance. Each property is termed a feature , also known in statistics as an explanatory variable (or independent variable , although features may or may not be statistically independent ). Features may variously be binary (. "on" or "off"); categorical (. "A", "B", "AB" or "O", for blood type ); ordinal (. "large", "medium" or "small"); integer-valued (. the number of occurrences of a particular word in an email); or real-valued (. a measurement of blood pressure). If the instance is an image, the feature values might correspond to the pixels of an image; if the instance is a piece of text, the feature values might be occurrence frequencies of different words. Some algorithms work only in terms of discrete data and require that real-valued or integer-valued data be discretized into groups (. less than 5, between 5 and 10, or greater than 10)