[Problem] To provide a learning device for performing more efficient machine learning. [Solution] A learning device unit according to one embodiment comprises at least one learning device and a connection device for connecting an intermediate learning device having an internal state shared by another learning device unit to the at least one learning device.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A learning device unit comprising: at least one learning device; and a connection device for connecting an intermediate learning device having an internal state shared by another learning device unit to the at least one learning device. 2. The learning device unit according to claim 1, wherein the connection device connects the intermediate learning device disposed outside said learning device unit to the at least one learning device. 3. The learning device unit according to claim 1, wherein the connection device connects the intermediate learning device disposed inside said learning device unit to the at least one learning device, and wherein the intermediate learning device shares an internal state with an intermediate learning device disposed inside the other learning device unit. 4. The learning device unit according to claim 3, wherein the intermediate learning device shares the internal state with the intermediate learning device disposed inside the other learning device unit by acquiring, from the other learning device unit, information constituting the internal state of the intermediate learning device disposed inside the other learning device unit. 5. The learning device unit according to claim 4, wherein the intermediate learning device obtains, as the information constituting the internal state of the intermediate learning device disposed inside the other learning device, a set of input information inputted to the intermediate learning device and output information that is outputted by the intermediate learning device in response to the input information. 6. The learning device unit according to claim 3, wherein the intermediate learning device is configured to share the internal state with the intermediate learning device disposed inside the other learning device unit, by acquiring information constituting the internal state from a storage device provided so that said learning device unit and the other learning device unit are able to access the storage device. 7. The learning device unit according to claim 6, further comprising a deciding device for deciding the input received by said learning device unit or the internal state of the at least one learning device, wherein the intermediate learning device acquires information constituting the internal state from the storage device on the basis of the input or the internal state decided by the deciding device. 8. The learning device unit according to claim 1, wherein the at least one learning device includes an input-side learning device disposed on an input side, and/or an output-side learning device disposed on an output side. 9. The learning device unit according to claim 1, wherein the information constituting the internal state comprises a weighting. 10. A computer program configured to cause a computer to function as: at least one learning device; and a connection device for connecting an intermediate learning device having an internal state shared by another learning device unit to the at least one learning device.