Tuesday 11 March 2008

42, Using Enthymemes in an Inquiry Dialogue System

Contents of 'Using Enthymemes in an Inquiry Dialogue System' (2008), by Eilzabeth Black and Anthony Hunter

... Here we investigate the use of enthymemes in inquiry dialogues. For this, we propose a generative inquiry dialogue system and show how, in this dialogue system, enthymemes can be managed by the agents involved, and how common knowledge can evolve through dialogue.


... Here, we adapt and integrate [previous] proposals in order to define a new framework for generating inquiry dialogues that use enthymemes. The agents involved can send and receive enthymemes, they can query the other agent if they do not understand an enthymeme they have received, and they can update their perception of what can be used as common knowledge based on the information exchanged during the dialogue.

Logical Arguments


Representing Dialogues

Generating Dialogues

Properties of Dialogue System


41, Real Arguments are Approximate Arguments

Contents of 'Real Arguments are Approximate Arguments' (2007) by Anthony Hunter

... real arguments (i.e. arguments presented by humans) usually do not have enough explicitly presented premises for the entailment of the claim. This is because there is some common knowledge that can be assumed by a proponent of an argument and the recipient of it. This allows the proponent of an argument to encode an argument into a real argument by ignoring the common knowledge, and it allows a recipient of a real argument to decode it into an argument by drawing on the common knowledge. If both the proponent and recipient use the same common knowledge, then this process is straightforward. Unfortunately, this is not always the case, and raises the need for an approximation of the notion of an argument for the recipient to cope with the disparities between the different views on what constitutes common knowledge.


... Real arguments (i.e. those presented by people in general) are normally enthymemes... An enthymeme only explicitly represents some of the premises for entailing its claim...

Logical Argumentation

Approximate Arguments

Framework for Real Arguments

Generalizing Argument Trees

Sequences of Real Arguments

Decoding Enthymemes

Quality of Enthymemes