Search results for "TASK"
showing 10 items of 1658 documents
Applications of the vehicle routing problem with trailers and transshipments
2013
Abstract The vehicle routing problem with trailers and transshipments (VRPTT) is a recent and challenging extension of the well-known vehicle routing problem. The VRPTT constitutes an archetypal representative of the class of vehicle routing problems with multiple synchronization constraints (VRPMSs). In addition to the usual task covering constraints, VRPMSs require further synchronization between vehicles, concerning spatial, temporal, and load aspects. VRPMSs possess considerable practical relevance, but limited coverage in the scientific literature. The purpose of the present paper is to describe how several important types of VRPMSs, such as multi-echelon location-routing problems and …
A heuristic method for estimating attribute importance by measuring choice time in a ranking task
2012
The evaluation of a product or service in terms of its attributes has been broadly studied in marketing, management and decision sciences. However, methods for finding important attributes have theoretical and practical limitations. The former are related to the selection of the most appropriate model; the latter are due to large number of variables that affect the specific experimental context. This study aims to present a new methodology that captures attribute preferences from a respondent and in particular, by using the choice time in a ranking task, it allows to indirectly obtain the importance weights for several tested attributes through a simple, fast and inexpensive procedure. More…
Immune networks: Multi-tasking capabilities at medium load
2013
Associative network models featuring multi-tasking properties have been introduced recently and studied in the low load regime, where the number $P$ of simultaneously retrievable patterns scales with the number $N$ of nodes as $P\sim \log N$. In addition to their relevance in artificial intelligence, these models are increasingly important in immunology, where stored patterns represent strategies to fight pathogens and nodes represent lymphocyte clones. They allow us to understand the crucial ability of the immune system to respond simultaneously to multiple distinct antigen invasions. Here we develop further the statistical mechanical analysis of such systems, by studying the medium load r…
Gossip: The Architecture of SpreadPlots
2003
A spreadplot is a visualization that simultaneously shows several different views of a dataset or model. The individual views can be dynamic, can support high-interaction direct manipulation, and can be algebraically linked with each other, possibly via an underlying statistical model. Thus, when a data analyst changes the information shown in one view of a statistical model, the changes can be processed by the model and instantly represented in the other views. Spreadplots simplify the analyst's task when many different plots are relevant to the analysis at hand, as is the case in regression analysis, where there are many plots that can be used for model building and diagnosis. On the othe…
Is there a cost at encoding words with joined letters during visual word recognition?
2018
Abstract For simplicity, models of visual-word recognition have focused on printed words composed of separated letters, thus overlooking the processing of cursive words. Manso de Zuniga, Humphreys, and Evett (1991) claimed that there is an early “cursive normalization” encoding stage when processing written words with joined letters. To test this claim, we conducted a lexical decision experiment in which words were presented either with separated or joined letters. To examine if the cost of letter segmentation occurs early in processing, we also manipulated a factor (i.e., word-frequency) that is posited to affect subsequent lexical processing. Results showed faster response times for the w…
Stereotype Threat Effect on a Simple Motor Task: An Investigation of the Visuo-Spatial Working Memory
2020
Purpose: Based on the Chalabaev et al. (2013) study showing that in a Stereotype Threat (ST) situation the velocity of force production in a simple motor task can be affected, this study aimed to r...
Balanced difficulty task finder: an adaptive recommendation method for learning tasks based on the concept of state of flow
2020
An adaptive task difficulty assignment method which we reckon as balanced difficulty task finder (BDTF) is proposed in this paper. The aim is to recommend tasks to a learner using a trade-off between skills of the learner and difficulty of the tasks such that the learner experiences a state of flow during the learning. Flow is a mental state that psychologists refer to when someone is completely immersed in an activity. Flow state is a multidisciplinary field of research and has been studied not only in psychology, but also neuroscience, education, sport, and games. The idea behind this paper is to try to achieve a flow state in a similar way as Elo’s chess skill rating (Glickman in Am Ches…
Enhancing organisational commitment through task significance: the moderating role of openness to experience
2020
International audience; Researchers have extensively explored the factors influencing employees’ organisational commitment. However, few studies make an explicit distinction between different commitment types when exploring its determinants, and the scholarly attention to individual differences is also limited. In this paper, we confirm that developing managerial interventions to enhance task significance can be useful to promote organisational commitment, but this relationship is contingent on the commitment type and the employees’ openness to experience. We focus on two forms of organisational commitment: affective and continuance commitment. Our study shows that task significance is a be…
Firm innovativeness and work-life balance
2017
ABSTRACTAssessing firms’ innovativeness is not an easy task. The literature recognises a number of innovativeness indicators. Most of them are technology-based indicators which perform well in high-tech industries but might be ineffective in other industries where patenting is not usual or in which R&D budgets are low or not formalised. In this paper, we critically review previous innovativeness indicators and we propose a new approach to assess firm innovativeness that is based not on the role of technology but on that of people. This new approach focuses on the existence of work-life balance benefits that are connected with motivation, engagement and creativity in the workplace. We argue …
Integration of Pedagogical Knowledge in the Light of Questions about the Empirical Foundations of General Pedagogy and Understanding of the Concept o…
2018
The main purpose of the article is to show that the studies undertaken by pedagogues, regarding both the experimental foundations of pedagogy and generality, have some common points and that an in-depth reflection on those issues highlights the postulate to treat pedagogical knowledge in an integral manner. The first part presents the relationship between the issue of the empirical foundations of pedagogy and the problems of integrity of pedagogical knowledge; the second part – the relationship between the concept of generality and the problems of integrity, and the concluding part presents a proposed understanding of general pedagogy as integral pedagogy in which the approach towards both …