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Please predict whether this patent is acceptable.PATENT ABSTRACT: A state estimation apparatus includes: a first state estimation section that estimates a plurality of states of a user carrying a sensor on the basis of information obtained by the sensor; a detection section that detects a predefined pattern on the basis of the information obtained by the sensor; a selection section that selects different ones of a plurality of transition probabilities depending upon whether or not the pattern is detected by the detection section, the transition probabilities each being registered as a probability of a transition between individual states among the plural states.