The Experts below are selected from a list of 28713 Experts worldwide ranked by ideXlab platform
Nadine Le Fort-piat - One of the best experts on this subject based on the ideXlab platform.
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Hybrid Behavioral Control Architecture for the Cooperation of Minimalist Mobile Robots
2004Co-Authors: Lounis Adouane, Nadine Le Fort-piatAbstract:This paper presents a hybrid control architecture based on subsumption and schemas motors principles in order to achieve complex and cooperative tasks. The control architecture implemented is constituted by a set of independent and elementary Behaviors organized in layers of skills. Specific low-level Behaviors, called altruistic Behaviors and inspired by societies of insects (attractive or repulsive signals), are used to improve the efficiency of the control. Therefore, competitive and cooperative mechanisms are used in an unique hybrid architecture of control to perform a complex Box-pushing task by a set of mini-robots. The analysis of an elevated number of simulations allows us to have statistical results (time to complete the task was chosen as performance criteria) which show the existence of an optimal number of robots to achieve the Box-pushing task and underline the importance of the use of altruistic Behaviors to enhance the cooperative task. Index Terms-Cooperative robotics, Behavioral architecture of control, Altruistic Behavior, Box-pushing task.
Lounis Adouane - One of the best experts on this subject based on the ideXlab platform.
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Hybrid Behavioral Control Architecture for the Cooperation of Minimalist Mobile Robots
2004Co-Authors: Lounis Adouane, Nadine Le Fort-piatAbstract:This paper presents a hybrid control architecture based on subsumption and schemas motors principles in order to achieve complex and cooperative tasks. The control architecture implemented is constituted by a set of independent and elementary Behaviors organized in layers of skills. Specific low-level Behaviors, called altruistic Behaviors and inspired by societies of insects (attractive or repulsive signals), are used to improve the efficiency of the control. Therefore, competitive and cooperative mechanisms are used in an unique hybrid architecture of control to perform a complex Box-pushing task by a set of mini-robots. The analysis of an elevated number of simulations allows us to have statistical results (time to complete the task was chosen as performance criteria) which show the existence of an optimal number of robots to achieve the Box-pushing task and underline the importance of the use of altruistic Behaviors to enhance the cooperative task. Index Terms-Cooperative robotics, Behavioral architecture of control, Altruistic Behavior, Box-pushing task.
Ron Shachar - One of the best experts on this subject based on the ideXlab platform.
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When Kerry Met Sally: Politics and Perceptions in the Demand for Movies
Management Science, 2014Co-Authors: Jason M.t. Roos, Ron ShacharAbstract:Movie producers and exhibitors make various decisions requiring an understanding of moviegoer's preferences at the local level. Two examples of such decisions are exhibitors' allocation of screens to movies and producers' allocation of advertising across different regions of the country. This study presents a predictive model of local demand for movies with two unique features. First, arguing that consumers' political tendencies have an unutilized predictive power for marketing models, we allow consumers' heterogeneity to depend on their voting tendencies. Second, instead of relying on the commonly used genre classifications to characterize movies, we estimate latent movie attributes. These attributes are not determined a priori by industry professionals but rather reflect consumers' perceptions, as revealed by their moviegoing Behavior. Box-office data over five years from 25 counties in the U.S. Midwest provide support for this model. First, consumers' preferences are related to their political tendencies. For example, we find that counties that voted for congressional Republicans prefer movies starring young, Caucasian, female actors over those starring African American, male actors. Second, perceived attributes provide new insights into consumers' preferences. For example, one of these attributes is the movie's degree of seriousness. Finally, and most importantly, the two improvements proposed here have a meaningful impact on forecasting error, decreasing it by 12.6%. This paper was accepted by Pradeep Chintagunta, marketing.
Alexander L. Chapman - One of the best experts on this subject based on the ideXlab platform.
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Is Dialectical Behavior Therapy the Right 'Fit' for Your Patient? 4 Steps Can Help You Choose Psychotherapies That Are Supported by the Evidence
Current psychiatry, 2008Co-Authors: Alexander L. ChapmanAbstract:Strong evidence for the efficacy of dialectical Behavior therapy (DBT) for patients with borderline personality disorder (BPD) has brought hope to clinicians and patients alike. By including cognitive therapy, Behavioral strategies, skills training, and exposure therapy, DBT addresses more than just self-harm and suicidal Behavior (Box 1). (1)-(13) In fact, DBT's primary interventions--such as skills training in emotion regulation and a straightforward approach to dysfunctional Behaviors--could help many people. [ILLUSTRATION OMITTED] Box 1 DBT: First efficacious therapy for borderline personality disorder Marsha Linehan, PhD, developed dialectical Behavior therapy (DBT) in an attempt to devise an effective protocol for highly suicidal women. Over time, she realized that many of these women met criteria for borderline personality disorder (BPD), and DBT evolved to address their emotional, interpersonal, and mental health issues. (1) Linehan et al (2) published results from the first randomized clinical trial (RCT) of any psychological treatment for BPD. In this study, chronically parasuicidal women who met criteria for BPD received 1 year of DBT or "treatment as usual" in community settings. Those treated with DBT experienced fewer and less severe parasuicidal events, were more likely to remain in treatment, and required fewer days of inpatient care. Findings from 9 additional RCTs have supported the efficacy of DBT for women with BPD and other populations. (3) These RCTs have examined DBT (or adapted versions of DBT) for treating: * women with BPD and substance dependence (4), (5) * men and women with BPD in a community setting (6) * women veterans with BPD (7) * non-BPD women with bulimia (8) or binge-eating disorder (9) * women with BPD in the Netherlands (53% of study subjects had a substance use disorder) (10), (11) * depressed older adults (12) * suicidal women with BPD. (13) Because DBT is so comprehensive and practical, clinicians might be tempted to refer almost anyone who seems even slightly "borderline" for DBT. But some patients--particularly those with mood and anxiety disorders--might benefit more from other treatments. To help you make appropriate evidence-based referrals for DBT and other psychological treatments, this article recommends 4 steps: * Know what the treatment involves. * Consider the evidence for the treatment in patients similar to yours. * Consider why your patient--with unique characteristics and problems--would benefit from these specific interventions. * Communicate to the patient your reasons for the referral. Step 1. What does DBT involve? Difficulty with emotion regulation. DBT is based on a biosocial theory of BPD. (1) Within this frame-work, BPD is caused by the transaction (mutual interplay) of a biologically based vulnerability to emotions with an invalidating rearing environment. The patient with BPD typically experiences strong and long-lasting emotional reactions, often to seemingly small or insignificant events such as a slight look of disappointment on someone's face or a minor daily hassle. Patients with BPD often are especially attuned to emotional reactions, particularly signs of rejection or disapproval. Caregivers in an invalidating environment fail to provide the support a highly emotional child needs to learn to manage intense emotions. An invalidating environment: * indiscriminately rejects the child's communication of emotions and thoughts as invalid, independent of the validity of the child's experience * punishes emotional displays, then intermittently reinforces emotional escalation * oversimplifies the ease of problem solving or coping. (1) As a result, the fledgling BPD individual learns to mistrust and fear emotions and does not learn how to manage them. …
Jason M.t. Roos - One of the best experts on this subject based on the ideXlab platform.
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When Kerry Met Sally: Politics and Perceptions in the Demand for Movies
Management Science, 2014Co-Authors: Jason M.t. Roos, Ron ShacharAbstract:Movie producers and exhibitors make various decisions requiring an understanding of moviegoer's preferences at the local level. Two examples of such decisions are exhibitors' allocation of screens to movies and producers' allocation of advertising across different regions of the country. This study presents a predictive model of local demand for movies with two unique features. First, arguing that consumers' political tendencies have an unutilized predictive power for marketing models, we allow consumers' heterogeneity to depend on their voting tendencies. Second, instead of relying on the commonly used genre classifications to characterize movies, we estimate latent movie attributes. These attributes are not determined a priori by industry professionals but rather reflect consumers' perceptions, as revealed by their moviegoing Behavior. Box-office data over five years from 25 counties in the U.S. Midwest provide support for this model. First, consumers' preferences are related to their political tendencies. For example, we find that counties that voted for congressional Republicans prefer movies starring young, Caucasian, female actors over those starring African American, male actors. Second, perceived attributes provide new insights into consumers' preferences. For example, one of these attributes is the movie's degree of seriousness. Finally, and most importantly, the two improvements proposed here have a meaningful impact on forecasting error, decreasing it by 12.6%. This paper was accepted by Pradeep Chintagunta, marketing.