Abstract: The function input means 71 accepts input of a cost function expressed as a linear sum of terms in which each feature indicating driving of a driver is weighted by a degree of emphasis. The learning means 72 learns the cost function for each area by inverse reinforcement learning using expert driving data as training data that includes information representing contents of driving of an expert collected for each area. The driving data input means 73 accepts input of user driving data including information indicating driving of a subject whose driving is evaluated, information indicating environment when driving, and position information where these pieces of information were obtained.

Abstract: A function input means 71 accepts input of a cost function that calculates a cost incurred by an itinerary, the cost function being expressed as a linear sum of terms weighted for each feature that a traveler is expected to intend in the itinerary. A learning means 72 learns the cost function by inverse reinforcement learning using training data that includes scheduled information indicating travel planning of the traveler, attribute information indicating an attribute of the traveler, and actual information indicating an actual travel result of the traveler. A data extraction means 73 extracts the training data whose specified attribute matches the attribute information. Then, the learning means 72 learns the cost function according to the attributes by inverse reinforcement learning using the extracted training data.

Abstract: An information reading apparatus comprises a laser diode, a mirror having a planar emission mirror unit for reflecting a laser beam emitted from the laser diode towards a target optical pattern and a concave condensing mirror unit, formed integral with the emission mirror unit, for condensing a reflection beam from the optical pattern in a predetermined direction, a photodetector, situated in such a position as not to interrupt the reflection beam from the optical pattern, for receiving the condensed reflection beam and converting the same to an electric signal, and a mirror driving apparatus for reflecting the laser beam from the scan mirror in a reciprocal rotational operation by an attractive force of a permanent magnet and a coil and a restoring force of a resilient body clamped by dampers on both sides, and reciprocally scanning the beam over a bar code within a predetermined range.

Abstract: A cover slip for use in a microscope, which is employed for a water-immersed objective lens, is made of a transparent material with a refractive index, the difference between the refractive index of the transparent material and that of water being 0.02 or less.