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.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A non-transitory computer readable medium storing a program causing a computer to function as: 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; and 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. 2. The non-transitory computer readable medium according to claim 1, wherein the selection section selects a different one of the transition probabilities in accordance with a kind of the pattern detected by the detection section. 3. The non-transitory computer readable medium according to claim 1, wherein the computer is caused to further function as a second state estimation section that estimates a history of a change in the states before and after the detection section detects a pattern based on the transition probability selected by the selection section. 4. The non-transitory computer readable medium according to claim 1, wherein the state estimated by the first state estimation section is a primary state, and the computer is caused to further function as second state estimation section that estimates a history of a change in a secondary state to which the primary state belongs before and after the detection section detects a pattern on the basis of the transition probability selected by the selection section. 5. The non-transitory computer readable medium according to claim 1, wherein the transition probabilities are set in such a way that a probability of a transition to another state set in response to the detection section detecting the pattern is higher than a probability of the transition to another state set in response to the detection section not detecting the pattern. 6. The non-transitory computer readable medium according to claim 1, wherein when the detection section detects the predefined pattern a plurality of times in a certain period of time, the selection section selects one transition probability for the detection of the plural times. 7. The non-transitory computer readable medium according to claim 1, wherein when the detection section is unable to determine which one of a plurality of kinds of predefined patterns each being the predefined pattern having been detected is relevant, the selection section sums a plurality of transition probabilities corresponding to the plural kinds of predefined patterns by weighting on the basis of a plurality of individually corresponding probabilities so as to provide a new transition probability. 8. A state estimation apparatus comprising: 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; and 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.