1,721,130 research outputs found
Multi-Agent Planning: Modelling Execution Agents
No full text: 6/24/96 Ruth Aylett 1. Introduction This paper reports work in progress in constructing a multi-agent system MACTA (Multiple Automata for Complex Task Achievement) in which a reflective planning agent supervises a number of cooperating behavioural agents (currently the reflective agent is a fixed computer and the behavioural agents are mobile robots). It is therefore concerned with the issue of how to integrate predictive planning, carried out at a symbolic level, with behavioural systems which possess no explicit model of the environment and react at a sub-symbolic level to incoming sensor data. From the planner's perspective, these behavioural systems act as its execution agents, so this is equivalent to looking at the relationship between planning and a particular type of execution agent. An idea raised recently in the Edinburgh OPlan II project (Dalton et al 94) is that of 'plug-and-play' planners in which a library of planning components could be used to construct a planner f..
Enabling Multiple Execution Agents (Extended Abstract)
No full textEnabling Multiple Execution Agents Ruth Aylett, Alex Coddington, IT Institute, University of Salford David Barnes, Rob Ghanea-Hercock, EEE Dept. University of Salford 1. Introduction This extended abstract describes work at the University of Salford Mobile Robotics Lab with a hybrid architecture which combines a symbolic predictive planner - embodied in a Reflective Agent with no sensing capabilities - with a number of non-symbolic reactive (in fact Behavioural) agents - embodied in multiple cooperating mobile robots. This work is funded by the UK Engineering and Physical Science Research Council under the title MACTA - Multiple Automata for Complex Task Achievement. As described below, the behavioural agents (BAs) are constructed using the Behavioural Synthesis Architecture (BSA) created in Salford (Barnes&Gray 91, Barnes 96), while the Reflective Agent uses a standard non-linear planning system, currently ZENO from the University of Washington (Penberthy&Weld 94). These components..
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Emergent narrative, requirements and high-level architecture
No full textAbstract. In this paper we discuss the necessity for the VS community to address particular issues regarding the consideration of essential elements of storytelling such as the role of the author and the role of the spectator. We expose and present the necessary requirements, as well as, a high level architecture for a storytelling system that fits our definition of VS (i.e. Emergent Narrative) and present a model of multi layered plot structure based on our research in the domains of both RPGs and interactive theatre. 1
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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