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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 24 / No. 1: Twenty-Fourth AAAI Conference on Artificial Intelligence

Collaborative Expert Portfolio Management

March 8, 2023

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Authors

David Stern

Microsoft FUSE Labs


Horst Samulowitz

National ICT Australia and University of Melbourne


Ralf Herbrich

Microsoft FUSE Labs


Thore Graepel

Microsoft Research


Luca Pulina

Universita di Genova


Armando Tacchella

Universita di Genova


DOI:

10.1609/aaai.v24i1.7561


Abstract:

We consider the task of assigning experts from a portfolio of specialists in order to solve a set of tasks. We apply a Bayesian model which combines collaborative filtering with a feature-based description of tasks and experts to yield a general framework for managing a portfolio of experts. The model learns an embedding of tasks and problems into a latent space in which affinity is measured by the inner product. The model can be trained incrementally and can track non-stationary data, tracking potentially changing expert and task characteristics. The approach allows us to use a principled decision theoretic framework for expert selection, allowing the user to choose a utility function that best suits their objectives. The model component for taking into account the performance feedback data is pluggable, allowing flexibility. We apply the model to manage a portfolio of algorithms to solve hard combinatorial problems. This is a well studied area and we demonstrate a large improvement on the state of the art in one domain (constraint solving) and in a second domain (combinatorial auctions) created a portfolio that performed significantly better than any single algorithm.

Topics: AAAI

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HOW TO CITE:

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella Collaborative Expert Portfolio Management Proceedings of the AAAI Conference on Artificial Intelligence, 24 (2010) 179.

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella Collaborative Expert Portfolio Management AAAI 2010, 179.

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella (2010). Collaborative Expert Portfolio Management. Proceedings of the AAAI Conference on Artificial Intelligence, 24, 179.

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella. Collaborative Expert Portfolio Management. Proceedings of the AAAI Conference on Artificial Intelligence, 24 2010 p.179.

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella. 2010. Collaborative Expert Portfolio Management. "Proceedings of the AAAI Conference on Artificial Intelligence, 24". 179.

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella. (2010) "Collaborative Expert Portfolio Management", Proceedings of the AAAI Conference on Artificial Intelligence, 24, p.179

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella, "Collaborative Expert Portfolio Management", AAAI, p.179, 2010.

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella. "Collaborative Expert Portfolio Management". Proceedings of the AAAI Conference on Artificial Intelligence, 24, 2010, p.179.

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella. "Collaborative Expert Portfolio Management". Proceedings of the AAAI Conference on Artificial Intelligence, 24, (2010): 179.

David Stern|| Horst Samulowitz|| Ralf Herbrich|| Thore Graepel|| Luca Pulina|| Armando Tacchella. Collaborative Expert Portfolio Management. AAAI[Internet]. 2010[cited 2023]; 179.


ISSN: 2374-3468


Published by AAAI Press, Palo Alto, California USA
Copyright 2022, Association for the Advancement of
Artificial Intelligence 1900 Embarcadero Road, Suite
101, Palo Alto, California 94303 All Rights Reserved

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