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Susan Wagner Cook Howard S. Friedman Katherine A. Duggan Jian Cui Voicu Popescu 《Cognitive Science》2017,41(2):518-535
A beneficial effect of gesture on learning has been demonstrated in multiple domains, including mathematics, science, and foreign language vocabulary. However, because gesture is known to co‐vary with other non‐verbal behaviors, including eye gaze and prosody along with face, lip, and body movements, it is possible the beneficial effect of gesture is instead attributable to these other behaviors. We used a computer‐generated animated pedagogical agent to control both verbal and non‐verbal behavior. Children viewed lessons on mathematical equivalence in which an avatar either gestured or did not gesture, while eye gaze, head position, and lip movements remained identical across gesture conditions. Children who observed the gesturing avatar learned more, and they solved problems more quickly. Moreover, those children who learned were more likely to transfer and generalize their knowledge. These findings provide converging evidence that gesture facilitates math learning, and they reveal the potential for using technology to study non‐verbal behavior in controlled experiments. 相似文献
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In trying to control various aspects concerning utterance production in multi-party human–computer dialogue, argumentative
considerations play an important part, particularly in choosing appropriate lexical units so that we fine-tune the degree
of persuasion that each utterance has. A preliminary step in this endeavor is the ability to place an ordering relation between semantic
forms (that are due to be realized as utterances, by the machine), concerning their persuasion strength, with respect to certain
(explicit or implicit) conclusions. Thus, in this article, we propose a mechanism for assessing utterances, in terms of their
argumentative force. The framework designed conflates insights from Asher and Lascarides’ SDRT (“Segmented Discourse Representation Theory”),
and from Anscombre and Ducrot’s AT (“Argumentation Theory”). These mechanisms are included in a language generation component
of a multi-party dialogue system for book reservation applications (i.e., a “virtual librarian”), and thus evaluated via typical
human–machine conversations.
相似文献
Jean CaelenEmail: |
13.
Dumitru Popescu 《The Ecumenical review》1977,29(3):265-272
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We study ranges of algebraic functions in lattices and in algebras, such as Łukasiewicz-Moisil algebras which are obtained
by extending standard lattice signatures with unary operations.We characterize algebraic functions in such lattices having
intervals as their ranges and we show that in Artinian or Noetherian lattices the requirement that every algebraic function
has an interval as its range implies the distributivity of the lattice.
Presented by Daniele Mundici 相似文献
15.
Sergiu Rudeanu 《Studia Logica》1967,20(1):37-60
Summary In Part I of this paper, an abstract analogue of the minimization problem for Boolean functions and of the notion of prime
implicant is defined, so that this general problem can be solved in the same steps as in the classical case: 1) determination
of the prime implicants; 2) determination ofall the solutions made up of prime implicants. In Part II it is shown that the classical minimization problem, as well as certain
set-theoretical and graphtheoretical problems are particular cases of the general problem defined in Part I.
Allatum est die 27 Novembris1965 相似文献
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