We investigated the potential of automatic detection of a learner’s affective states from posture patterns and dialogue features obtained from an interaction with AutoTutor, an intelligent tutoring system with conversational dialogue. Training and validation data were collected from the sensors in a learning session with AutoTutor, after which the affective states of the learner were rated by t...

This paper presents PARADISE PARAdigm for DIalogue Sys tem Evaluation a general framework for evaluating and comparing the performance of spoken dialogue agents The framework decou ples task requirements from an agent s dialogue behaviors supports comparisons among dialogue strategies enables the calculation of per formance over subdialogues and whole dialogues speci es the relative contributio...

BACKGROUND Countries in the World Health Organization African Region have witnessed an increase in global health initiatives in the recent past. Although these have provided opportunities for expanding coverage of health interventions; their poor alignment with the countries' priorities and weak coordination, are among the challenges that have affected their impact. A well-coordinated health po...

Bailu Ding, Jiang-Ming Yang, Chong Wang, Rui Cai, Zhiwei Li, Lei Zhang Fudan University, [email protected] Microsoft Research Asia, {jmyang, ruicai, zli, leizhang}@microsoft.com Princeton University, [email protected] 1 Latent Structures of Dialogue Documents Various forms of data that consist of sequential messages abound in social networks, such as citations, mail lists, chats, and fo...

This paper highlights a segment of a larger study that examined the potential for CMC tools to foster reflective thinking among preservice teachers. Using a mixedmethods research design, the extent to which the CMC among six groups of preservice teachers was influenced by (a) the focus and structure of the CMC context, and (b) the interactions and social dialogue among peers was examined. Highl...