14 August 2012

Seminar: Management and Development of Modular Knowledge for an Intelligent Interactive Agent

This presentation describes the design and implementation of a mechanism for topic selection for a conversational agent with a modular architecture.


Event details

Title:

PhD Completion Seminar: Management and Development of Modular Knowledge for an Intelligent Interactive Agent

Person:

PhD Candidate: Daniel Macias-Galinda
Read more about Daniel (Student profile)

Date:

2012-12-10

Time:

3.00 pm - 4.00 pm

Location:

RMIT City campus,
Building 14, Level 8, IS Lounge Area


Abstract

Open-ended automated conversation systems require knowledge about the space of discourse to be covered, as well as a set of candidate topics so it can drive its interactions with users.

Structured knowledge resources like ontologies are a convenient mechanism to provide such conversational topics; however, challenges such as large human involvement in constructing and maintaining these resources make them an expensive alternative. In addition to this, the reasoning process performed by the agent to choose conversational topics has to be performed in real time, thus requiring the processes involved to be efficient and to operate over a small subset of elements (topics, outputs). The user, finally, must perceive the output generated by the system as coherent and linked to the discussion.

This presentation describes the design and implementation of a mechanism for topic selection for a conversational agent with a modular architecture.

This architecture allows the agent, depicted as a physical Toy that interacts with children via speech, to cover new conversational domains, which are added into the system as additional units or modules. The core of the topic selection mechanism is based on semantic relatedness between topics, and it helps the agent producing responses that users perceive as coherent with respect to the conversation flow.

Seminar organisation

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Seminars are free and open to the general public. No booking is necessary. If you require further information please contact the seminar co-ordinator sebastian.sardina@rmit.edu.au.

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