Patent: US 7,840,510 B2, PCT/FI2007/050277
J. Koikkalainen, J. Lötjönen
An apparatus, and a method, comprising: computing a measure of goodness for each of at least two dimensions of a system linked to a first state of the system and a second state of the system; computing a weighting for each of at least two dimensions linked to a studied system, the weightings describing the differences of said at least two dimensions in relation to said first state and said second state; and inferring the state of the studied system based on said measures of goodness and said weightings.