1,720,984 research outputs found
From natural language to formal proof goal* structured goal formalisation applied to medical guidelines (extended abstract)
No full textThe main problem encountered when starting verification of goals for some formal system, is the ambiguity of those goals when they are specified in natural language. To verify goals given in natural language, a translation of those goals to the formalism of the verification tool is required. The main concern is to assure equivalence of the final translation and the original. A structured method is required to assure equivalence in every case. This article proposes a goal formalisation method in five steps, in which the domain expert is involved in such a way that the correctness of the result can be assured. The contribution of this article is a conceptual goal model, a formal expression language for this model, and a structured method which transforms any input goal to a fully formalised goal in the required target formalism. The proposed formalisation method guarantees essential properties like correctness, traceability, reduced variability and reusability
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
Establishing Shared Query Understanding in an Open Multi-Agent System
Full text linkWe propose a method that allows to develop shared understanding between two
agents for the purpose of performing a task that requires cooperation. Our
method focuses on efficiently establishing successful task-oriented
communication in an open multi-agent system, where the agents do not know
anything about each other and can only communicate via grounded interaction.
The method aims to assist researchers that work on human-machine interaction or
scenarios that require a human-in-the-loop, by defining interaction
restrictions and efficiency metrics. To that end, we point out the challenges
and limitations of such a (diverse) setup, while also restrictions and
requirements which aim to ensure that high task performance truthfully reflects
the extent to which the agents correctly understand each other. Furthermore, we
demonstrate a use-case where our method can be applied for the task of
cooperative query answering. We design the experiments by modifying an
established ontology alignment benchmark. In this example, the agents want to
query each other, while representing different databases, defined in their own
ontologies that contain different and incomplete knowledge. Grounded
interaction here has the form of examples that consists of common instances,
for which the agents are expected to have similar knowledge. Our experiments
demonstrate successful communication establishment under the required
restrictions, and compare different agent policies that aim to solve the task
in an efficient manner.Comment: 9 pages. International Conference on Autonomous Agents and Multiagent
Systems (AAMAS 2023), London, United Kingdo
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
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