31,170 research outputs found
Modelling Users, Intentions, and Structure in Spoken Dialog
We outline how utterances in dialogs can be interpreted using a partial first
order logic. We exploit the capability of this logic to talk about the truth
status of formulae to define a notion of coherence between utterances and
explain how this coherence relation can serve for the construction of AND/OR
trees that represent the segmentation of the dialog. In a BDI model we
formalize basic assumptions about dialog and cooperative behaviour of
participants. These assumptions provide a basis for inferring speech acts from
coherence relations between utterances and attitudes of dialog participants.
Speech acts prove to be useful for determining dialog segments defined on the
notion of completing expectations of dialog participants. Finally, we sketch
how explicit segmentation signalled by cue phrases and performatives is covered
by our dialog model.Comment: 17 page
A Pragmatic Interpretation of Quantum Logic
Scholars have wondered for a long time whether the language of quantum
mechanics introduces a quantum notion of truth which is formalized by quantum
logic (QL) and is incompatible with the classical (Tarskian) notion. We show
that QL can be interpreted as a pragmatic language of assertive formulas which
formalize statements about physical systems that are empirically justified or
unjustified in the framework of quantum mechanics. According to this
interpretation, QL formalizes properties of the metalinguistic notion of
empirical justification within quantum mechanics rather than properties of a
quantum notion of truth. This conclusion agrees with a general integrationist
perspective that interprets nonstandard logics as theories of metalinguistic
notions different from truth, thus avoiding incompatibility with classical
notions and preserving the globality of logic. By the way, some elucidations of
the standard notion of quantum truth are also obtained.
Key words: pragmatics, quantum logic, quantum mechanics, justifiability,
global pluralism.Comment: Third version: 20 pages. Sects. 1, 2, and 4 rewritten and improved.
Explanations adde
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