1. An information processing device comprising: a recognition result acquiring unit for acquiring respective recognition result information outputted by a plurality of recognition engines executing different recognition processes on recognition target data; and an integration recognition result outputting unit for outputting a new recognition result obtained by integrating the respective recognition result information acquired from the plurality of recognition engines, wherein: the recognition result acquiring unit is configured to acquire the respective recognition result information in a data format common to the plurality of recognition engines, from the plurality of recognition engines; and the integration recognition result outputting unit is configured to integrate the respective recognition result information based on the respective recognition result information, and output as the new recognition result.