A computer-implemented method includes creating a classifier by: training a machine learning model using two or more tasks, wherein the tasks lie in two or more domains; including in the machine learning model at least one attribute common to at least two of said two or more domains; including in the machine learning model at least one latent feature that affects at least two of the two or more tasks that fall within one of the at least two domains; and constructing the classifier based on said machine learning model. The computer-implemented method further includes applying the classifier to at least one operational task.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A computer-implemented method comprising: identifying a cognitive service suite, said cognitive service suite comprising a plurality of cognitive services; creating a classifier by: training a machine learning model using two or more tasks, wherein said two or more tasks lie in two or more domains; including in said machine learning model at least one attribute common to at least two of said two or more domains; including in said machine learning model at least one latent feature that affects at least two of said two or more tasks that fall within one of said at least two domains; and constructing said classifier based on said machine learning model; and incorporating said classifier into at least two of said plurality cognitive services. 2. The computer-implemented method of claim 1, wherein said at least two of said plurality of cognitive services comprise distinct operational tasks within a single operational domain. 3. The computer-implemented method of claim 1, wherein said at least two of said plurality of cognitive services comprise a common operational task within distinct operational domains. 4. The computer-implemented method of claim 1, wherein said at least two of said plurality of cognitive services comprise distinct operational tasks within distinct operational domains. 5. The computer-implemented method of claim 1, wherein said plurality of cognitive services comprises at least one service selected from the group consisting of: (a) natural language classification; (b) sentiment analysis; (c) retrieval and ranking; (d) concept insight generation; (e) natural language processing; (f) natural language translation; (g) tone analysis; (h) personality insight generation; (i) conversational dialog; (j) entity and relationship extraction; (k) customer engagement analysis; and (l) relationship discovery. 6. The computer-implemented method of claim 1, wherein said cognitive service suite is accessible through at least one application programming interface. 7. The computer-implemented method of claim 6 wherein said at least one application programming interface is integrated with a cloud-based application development platform. 8. A computer program product comprising one or more computer readable storage media and program instructions stored on said one or more computer readable storage media, said program instructions comprising instructions to: identify a cognitive service suite, said cognitive service suite comprising a plurality of cognitive services; create a classifier by: training a machine learning model using two or more tasks, wherein said two or more tasks lie in two or more domains; including in said machine learning model at least one attribute common to at least two of said two or more domains; including in said machine learning model at least one latent feature that affects at least two of said two or more tasks that fall within one of said at least two domains; constructing said classifier based on said machine learning model; and incorporate said classifier into at least two of said plurality cognitive services. 9. The computer program product of claim 8, wherein said at least two of said plurality of cognitive services comprise distinct operational tasks within a single operational domain. 10. The computer program product of claim 8, wherein said at least two of said plurality of cognitive services comprise a common operational task within distinct operational domains. 11. The computer program product of claim 8, wherein said at least two of said plurality of cognitive services comprise distinct operational tasks within distinct operational domains. 12. The computer program product of claim 8, wherein said plurality of cognitive services comprises at least one service selected from the group consisting of: (a) natural language classification; (b) sentiment analysis; (c) retrieval and ranking; (d) concept insight generation; (e) natural language processing; (f) natural language translation; (g) tone analysis; (h) personality insight generation; (i) conversational dialog; (j) entity and relationship extraction; (k) customer engagement analysis; and (l) relationship discovery. 13. The computer program product of claim 8, wherein said cognitive service suite is accessible through at least one application programming interface. 14. The computer program product of claim 13 wherein said at least one application programming interface is integrated with a cloud-based application development platform. 15. A computer system comprising: one or more processors; one or more computer readable storage media; computer program instructions; said computer program instructions being stored on said one or more computer readable storage media; said computer program instructions comprising instructions to: identify a cognitive service suite, said cognitive service suite comprising a plurality of cognitive services; create a classifier by: training a machine learning model using two or more tasks, wherein said two or more tasks lie in two or more domains; including in said machine learning model at least one attribute common to at least two of said two or more domains; including in said machine learning model at least one latent feature that affects at least two of said two or more tasks that fall within one of said at least two domains; constructing said classifier based on said machine learning model; and incorporate said classifier into at least two of said plurality cognitive services. 16. The computer system of claim 15, wherein said at least two of said plurality of cognitive services comprise distinct operational tasks within a single operational domain. 17. The computer system of claim 15, wherein said at least two of said plurality of cognitive services comprise a common operational task within distinct operational domains. 18. The computer system of claim 15, wherein said at least two of said plurality of cognitive services comprise distinct operational tasks within distinct operational domains. 19. The computer system of claim 15, wherein said plurality of cognitive services comprises at least one service selected from the group consisting of: (a) natural language classification; (b) sentiment analysis; (c) retrieval and ranking; (d) concept insight generation; (e) natural language processing; (f) natural language translation; (g) tone analysis; (h) personality insight generation; (i) conversational dialog; (j) entity and relationship extraction; (k) customer engagement analysis; and (l) relationship discovery. 20. The computer system of claim 15, wherein said cognitive service suite is accessible through at least one application programming interface.