1,223 research outputs found
Four Replication Experiments of Kidd and Castano (2013)
No full textThe data is from the published article: Samur, D., Tops, M., & Koole, S. L. (2017). Does a single session of reading literary fiction prime enhanced mentalising performance? Four replication experiments of Kidd and Castano (2013). Cognition and Emotion, 1-15.
Abstract: Prior experiments indicated that reading literary fiction improves mentalising performance relative to reading popular fiction, non-fiction, or not reading. However, the experiments had relatively small sample sizes and hence low statistical power. To address this limitation, the present authors conducted four high-powered replication experiments (combined N = 1006) testing the causal impact of reading literary fiction on mentalising. Relative to the original research, the present experiments used the same literary texts in the reading manipulation; the same mentalising task; and the same kind of participant samples. Moreover, one experiment was pre-registered as a direct replication. In none of the experiments did reading literary fiction have any effect on mentalising relative to control conditions. The results replicate earlier findings that familiarity with fiction is positively correlated with mentalising. Taken together, the present findings call into question whether a single session of reading fiction leads to immediate improvements in mentalising
Rules and patterns for security in workflow systems
No full textAssignment of tasks to agents in a workflow (WF) system should occur according to security policies regarding user authorizations to access data and documents through the WF tasks. The paper presents an approach for discretionary secure assignment of tasks to agents taking into account authorization constraints, in the framework of the WIDE (Workflow Interactive Development Environment) WF management system. The approach is based on the concepts of role, agent, and task, and on authorization patterns and rules. Security rules (or triggers) specify which actions (e.g., security warnings, logs, audit actions) should be taken when a security violation (event) occurs, following the ECA paradigm of active databases. A basic set of rules is provided in the abstracted form of authorization patterns which are generic rule skeletons to be properly instantiated to enforce authorization constraints in a given WF applicatio
MI-search : a smart approach for urban information clouding
No full textIn this paper, we present an approach for urban-centered and calendar-oriented surfing of web contents according to the personal preferences of a user profile and interests.
Real examples related to the city of Milan are discussed in the paper to illustrate the technical peculiarities of the proposed approach
The innervation of human skin studied with confocal scanning laser microscopy: a comparison between PGP 9.5 immunofluorescence and silver impregnations
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Semantic Integration of Heterogeneous Information Sources
No full textDeveloping intelligent tools for the integration of information extracted from multiple heterogeneous sources is a challenging issue to effectively exploit the numerous sources available on-line in global information systems. In this paper, we propose intelligent, tool-supported techniques to information extraction and integration from both structured and semistructured data sources. An object-oriented language, with an underlying Description Logic, called ODLI3 , derived from the standard ODMG is introduced for information extraction. ODLI3 descriptions of the source schemas are exploited first to set a Common Thesaurus for the sources. Information integration is then performed in a semiautomatic way by exploiting the knowledge in the Common Thesaurus and ODLI 3 descriptions of source schemas with a combination of clustering techniques and Description Logics. This integration process gives rise to a virtual integrated view of the underlying sources for which mapping rules and integrity constraints are specified to handle heterogeneity. Integration techniques described in the paper are provided in the framework of the MOMIS system based on a conventional wrapper/mediator architecture
Protection and administration of XML data sources
No full textEXtensible Markup Language (XML) security has become a relevant research topic due to the widespread use of XML as the language for information interchange and document definition over the Web. In this context, developing an access control mechanism in terms of XML is an important step for Web information security. In this paper, we present the protection and administration facilities of Author-X, a Java-based system for discretionary access control to XML documents. Relevant features of Author-X are both a set-oriented and a document-oriented credential-based document protection, a differentiated protection of document/document type contents through the support of multi-granularity protection objects and positive/negative authorizations, and the support for different access control strategies. In this paper, we focus on the strategies we have developed for enforcing access control. Additionally, we provide a description of the environment we have developed to help the Security Officer in performing administrative activities related to both security policy and subject credential management
Thematic clustering and exploration of linked data
No full textNow that a huge amount of data is available in the Linked Data Cloud, the need of effective exploration and visualization techniques is becoming more and more important. In this paper, we propose aggregation and abstraction techniques for thematic clustering and exploration of linked data. These techniques transform a basic, flat view of a potentially large set of messy linked data for a given search target, into a high-level, thematic view called inCloud. In an inCloud, thematic exploration is guided by few essentials auto-describing their prominence for the search target and by their reciprocal proximity relations
Enforcing workflow authorization constraints using triggers
No full textWorkflow design involves modeling different aspects of a business process as well as security requirements. This paper presents an approach based on triggers to specify and enforce workflow authorization constraints for a flexible assignment of tasks to roles and agents. The approach has been conceived in the framework of the WIDE workflow management system. Authorization triggers specify when and how the set of authorizations for a given workflow should be changed and which actions should be taken by the system or by the administrator. A basic set of triggers is provided enforcing security policies common to workflow systems. Methodological issues related to trigger design for a given workflow application are discussed and an approach based on authorization patterns is illustrated. The paper shows how authorization patterns can be instantiated into triggers and discusses briefly aspects related to the analysis of a set of authorization triggers defined for a given workflow applicatio
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