Answer comparison in automated question answering

In the context of Question Answering (QA) on free text, we assess the value of answer comparison and information fusion in handling multiple answers. We report improvements in answer re-ranking using fusion on a set of location questions and show the advantages of considering candidates as allies rather than competitors. We conclude with some observations about answer modeling and evaluation methodology, arising from a more recent experiment with a larger set of questions and a greater diversity of question types and candidates.     

L’internalisation des stéréotypes chez les « petits » fonctionnaires : impact du contact avec le public et du prestige perçu

This paper focuses on the internalization of stereotypes among French office workers in the lower category (category C). More precisely, we investigated the impact of two independent factors on this internalization of stereotypes: the perceived external prestige and public contact. Results obtained using questionnaires completed by 175 office workers have mainly showed that, in accordance with previous studies, the external prestige perceived influence significantly the internalization of stereotypes. But, contrary to previous studies, the frequency of contacts with the public has no impact on the internalization of stereotypes in our sample. Our results invite furter work on this population of office employees who is, paradoxically, increasingly confronted with stereotypes but subject of very few studies.     

Examining the Roles of Work Autonomous and Controlled Motivations on Satisfaction and Anxiety as a Function of Role Ambiguity

Past research in the self-determination theory has shown that autonomous motivation is associated with positive outcomes (e.g., work satisfaction), whereas controlled motivation is related to negative outcomes (e.g., anxiety). The purpose of the present research was to examine the moderating function of role ambiguity on the relationships between work autonomous and controlled motivations on the one hand, and work satisfaction and anxiety on the other. Six hundred and ninety-eight workers (449 men and 249 women) participated in this study. Results revealed that autonomous motivation was most strongly related to satisfaction when ambiguity was low. In addition, controlled motivation was most strongly related to anxiety when ambiguity was high. In other words, the present findings suggest that the outcomes associated with each form of motivation may vary as a function of role ambiguity. The present study thus offers meaningful insights for organizations, managers, and employees.     

Categorization does not promote symmetry in Guinea baboons (<Emphasis Type="Italic">Papio papio</Emphasis>)

Humans have the capacity to use stimuli interchangeably by forming equivalence classes, and this ability seems to be supported by our language system. According to Sidman and Tailby (Conditional discrimination vs. matching to sample: an expansion of the testing paradigm. J Exp Anal Behav 37:5–22, 1982), the formation of equivalence classes require that three relations are derived among the class members, and past experiments have shown that one of these relations, i.e., symmetry, corresponding to the ability to reverse a relation (if A → B, then B → A), is extremely difficult to obtain in non-human animals. Because language development and the ability to form equivalence classes both co-occur in children with an increased ability to form categories, the current study tested the idea that category learning might promote symmetry in a nonhuman primate species. In Experiment 1, twelve Guinea baboons (Papio papio) were trained to associate 60 pictures of bears and 60 pictures of cars to two category labels, before being tested in symmetry trials. In Experiment 2, symmetry was trained and tested by reversing the association order between labels and pictures, using a new set of stimuli. In both experiments, the baboons successfully demonstrated category discrimination, but had only a weak (though significant) tendency to respond in accordance with symmetry during test trials. Altogether, our results confirm that symmetry is inherently difficult in non-human animals. We discuss possible explanations for such a limitation and give reasons for thinking that the effects of categorization on symmetry should be further investigated.     

Effect of negative emotional content on attentional maintenance in working memory

ABSTRACT

Previous research has shown that emotional stimuli may interfere with working memory (WM) processes, but little is known about the process affected. Using a complex span task, the present study investigated the influence of processing negative emotional content on attentional maintenance in WM. In two experiments conducted under articulatory suppression, participants were asked to remember a series of five letters, each of which was followed by an image to be categorised. In half of the trials, the images were negative and in the other half, they were neutral. In both experiments, our results showed longer processing times for emotional stimuli than neutral stimuli, and lower memory performance when participants processed negative stimuli. We propose that emotional stimuli direct more attentional resources towards the processing component of the WM task, thereby reducing the storage capacity available for the items that are to be remembered.     

Students’ Need Satisfaction Profiles: Similarity and Change over the Course of a University Semester

Self-determination theory positions the satisfaction of students’ needs for autonomy, competence, and relatedness as important determinants of various educational outcomes. In this study, we identify subpopulations of students characterized by distinct configurations of need satisfaction in the educational context, and assess the extent to which the nature of these configurations, and students’ individual profiles, remain stable over the course of a university semester. We also examine the role of perfectionism in the prediction of profile membership, and how these profiles relate to a variety of educational outcomes. A total of 521 first-year undergraduate university students completed our measures at the beginning and end of a university semester. We identified five need satisfaction profiles, which remained unchanged over the course of the study. Students characterized by higher levels of self-oriented perfectionism were more likely to be a member of a profile characterized by high levels of relatedness and global needs satisfaction associated with average levels of competence need satisfaction (“Globally Satisfied and Highly Connected” profile) relative to the other ones, and into the “Globally Satisfied” profile relative to the “Globally Dissatisfied, Highly Connected, and Competence Deficient” profile. Finally, the “Globally Dissatisfied, Highly Connected, and Competence Deficient” profile was associated with the least desirable outcomes (the lowest levels of students’ interest toward their studies, satisfaction, and attendance, and the highest levels of dropout intentions).