An information processing device 200 of the present invention includes: a recognition result acquiring means 201 for acquiring respective recognition result information outputted by a plurality of recognition engines 211, 212 and 213 executing different recognition processes on recognition target data; and an integration recognition result outputting means 202 for outputting a new recognition result obtained by integrating the respective recognition result information acquired from the plurality of recognition engines. The recognition result acquiring means 201 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. The integration recognition result outputting means 202 is configured to integrate the respective recognition result information based on the respective recognition result information, and output as the new recognition result.