Information processing apparatus, method for the same, and computer program

Abstract

According to one embodiment, an information processing apparatus includes processing circuitry. The processing circuitry reads out diagram information indicating a schedule of at least one vehicle tripping along a trip path, wherein the diagram information includes a plurality of events and the events include stop places and departure times from and/or arrival times at the stop places, and calculates a delay probability distribution for a first event of the plurality of events included in the diagram information. The processing circuitry calculates the delay probability distribution for the first event based on: event-to-event delay time information between the first event and a second event preceding the first event; and a required time interval between the first event and the second event.

1 . An information processing apparatus, comprising:
 processing circuitry configured to
 read out diagram information indicating a schedule of at least one vehicle tripping along a trip path, wherein the diagram information includes a plurality of events and the events include stop places and departure times from and/or arrival times at the stop places, and 
 calculate a delay probability distribution for a first event of the plurality of events included in the diagram information, 
   wherein the processing circuitry calculates the delay probability distribution for the first event based on:
 event-to-event delay time information between the first event and a second event preceding the first event; and 
 a required time interval between the first event and the second event. 
   
     
     
         2 . The information processing apparatus according to  claim 1 , wherein
 the diagram information includes first to n-th line information,   the first to n-th line information include the plurality of events including: stop places of the first to n-th vehicles; and   departure times from or arrival times at the stop places of the first to n-th vehicles,   the first event is an event selected from the events included in one line information among the first to n-th line information, and   the second event is at least one event selected from the events included at least one of the other line information than the one line information.   
     
     
         3 . The information processing apparatus according to  claim 2 , wherein the second event is also selected from the events included in the one line information. 
     
     
         4 . The information processing apparatus according to  claim 2 , wherein
 the processing circuitry sorts the plurality of events included in the first to n-th line information in chronological order and   the processing circuitry repeats to select one of the events as the first event in the sorted order and   the processing circuitry calculates, for the selected first event, the delay probability distribution for the first event.   
     
     
         5 . The information processing apparatus according to  claim 1 , wherein
 the processing circuitry identifies a margin time between the first event and the second event, based on a difference between (a) a time duration between the time of the first event and the time of the second event; and (b) the required time interval between the first event and the second event, and   the processing circuitry generates a first probability distribution based on an convolution operation of the event-to-event delay time information and a delay probability distribution for the second event,   the processing circuitry shifts the first probability distribution based on the margin time, and   the shifted first probability distribution is the delay probability distribution for the first event.   
     
     
         6 . The information processing apparatus according to  claim 5 , wherein
 the processing circuitry generates the shifted first probability distribution for each of a plurality of the second events, and   the processing circuitry combines the shifted first probability distributions to generate the delay probability distribution for the first event.   
     
     
         7 . The information processing apparatus according to  claim 1 , wherein
 the processing circuitry performs round-up processing if the first event is prohibited from taking place earlier than the time of the first event, and   the round-up processing is that in the delay probability distribution for the first event, a probability for a negative-valued delay time is added to a probability for a delay time of 0, and the probability for the negative-valued delay time is changed to 0.   
     
     
         8 . The information processing apparatus according to  claim 1 , wherein at least one of the plurality of events includes a time of passing through one of the stop places. 
     
     
         9 . The information processing apparatus according to  claim 1 , wherein
 the diagram information includes at least one line information,   the at least one line information includes the plurality of events that include: the stop places of the vehicle; and the departure times from and/or arrival times at the stop places, and   the processing circuitry calculates the delay probability distribution for each of the events on the at least one line information,   the processing circuitry shifts the times of the events on the at least one line information by respective delay expected values based on the delay probability distributions and   the processing circuitry generates an expected line information including the shifted times of the events.   
     
     
         10 . The information processing apparatus according to  claim 9 , wherein the processing circuitry calculates an indicator representing punctuality, quick-deliverability, or transportation capacity, based on the expected line information. 
     
     
         11 . An information processing method, comprising:
 reading out:
 diagram information indicating a schedule of at least one vehicle tripping along a trip path, wherein the diagram information includes a plurality of events, and the events include stop places and departure times from and/or arrival times at the stop places; 
 event-to-event delay time information between a first event of the plurality of events and a second event preceding the first event in the plurality of events; and 
 a required time interval between the first event and the second event; and 
   calculating a delay probability distribution for the first event based on the diagram information, event-to-event delay time information and the required time interval.   
     
     
         12 . A non-transitory computer readable medium having a computer program stored therein which when the computer program is executed by a computer, causes the computer to perform processes including, comprising:
 reading out:
 diagram information indicating a schedule of at least one vehicle tripping along a trip path, wherein the diagram information includes a plurality of events, and the events include stop places and departure times from and/or arrival times at the stop places; 
 event-to-event delay time information between a first event of the plurality of events and a second event preceding the first event in the plurality of events; and 
 a required time interval between the first event and the second event; and 
   calculating a delay probability distribution for the first event based on the diagram information, event-to-event delay time information and the required time interval.