1,026,754 research outputs found

    A Framework for Interaction and Cognitive Engagement in Connectivist Learning Contexts

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    Interaction has always been highly valued in education, especially in distance education (Moore, 1989; Anderson, 2003; Chen, 2004a; Woo & Reeves, 2007; Wang, 2013; Conrad, in press). It has been associated with motivation (Mahle, 2011; Wen-chi, et al., 2011), persistence (Tello, 2007; Joo, Lim, & Kim, 2011), deep learning (Offir, et al., 2008) and other components of effective learning. With the development of interactive technologies, and related connectivism learning theories (Siemens, 2005a; Downes, 2005), interaction theory has expanded to include interactions not only with human actors, but also with machines and digital artifacts. This paper explores the characteristics and principles of connectivist learning in an increasingly open and connected age. A theory building methodology is used to create a new theoretical model which we hope can be used by researchers and practitioners to examine and support multiple types of effective educational interactions. Inspired by the hierarchical model for instructional interaction (HMII) (Chen, 2004b) in distance learning, a framework for interaction and cognitive engagement in connectivist learning contexts has been constructed. Based on cognitive engagement theories, the interaction of connectivist learning is divided into four levels: operation interaction, wayfinding interaction, sensemaking interaction, and innovation interaction. Connectivist learning is thus a networking and recursive process of these four levels of interaction

    Mise-En-Scène of Narrative Actions in Interactive Storytelling (Demonstration).

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    In this Interactive Storytelling (IS) work, we provide a framework for automating several aspects of staging the activities of a population of narrative agents and their interactions. Narrative agents can have differing levels of narrative relevance within the situated narrative actions which are visualised within a 3D real-time virtual world. The solution we propose here offers a framework for integrating the use of multiple dynamic regions within the 3D story world defined through a semantic representation that is able to support the staging of narrative actions through the behaviours of the primary and background agents’ involved. This includes both the mechanics of dealing with the narrative discourse level as well as the interaction with the narrative generation layer to account for any dynamic modifications of the 3D story world. We refer to this approach as MISE-en-scène Region support (MISER) and are providing here details of the demonstration application which users will be able to interact with

    A Framework for Data Sharing in Computer Supported Cooperative Environments

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    Concurrency control is an indispensable part of any information sharing system. Co-operative work introduces new requirements for concurrency control which cannot be met using existing applications and database management systems developed for non-cooperative environments. The emphasis of concurrency control in conventional database management systems is to keep users and their applications from inadvertently corrupting data rather than support a workgroup develop a product together. This insular approach is necessary because applications that access the database have been built with the assumptions that they have exclusive access to the data they manipulate and that users of these applications are generally oblivious of one another. These assumptions, however, are counter to the premise of cooperative work in which human-human interaction is emphasized among a group of users utilizing multiple applications to jointly accomplish a common goal. Consequently, applying conventional approaches to concurrency control are not only inappropriate for cooperative data sharing but can actually hinder group work. Computer support for cooperative work must therefore adopt a fresh approach to concurrency control which does promote group work as much as possible, but without sacrifice of all ability to guarantee system consistency. This research presents a new framework to support data sharing in computer supported cooperative environments; in particular, product development environments where computer support for cooperation among distributed and diverse product developers is essential to boost productivity. The framework is based on an extensible object-oriented data model, where data are represented as a collection of interrelated objects with ancillary attributes used to facilitate cooperation. The framework offers a flexible model of concurrency control, and provides support for various levels of cooperation among product developers and their applications. In addition, the framework enhances group activity by providing the functionality to implement user mediated consistency and to track the progress of group work. In this dissertation, we present the architecture of the framework; we describe the components of the architecture, their operation, and how they interact together to support cooperative data sharing

    Contribution of agronomy to land management issues - A Comparison of five interdisciplinary PhD theses

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    An introductory literature review highlights the growing attention within the processes taking place at farming region and landscape scale beside the classical spatial scales at cultivated/experimental plot level. This recent evolution in agronomy finds its origin in newly emerging land management issues. Meanwhile, geography and other disciplines are stressing the need for a greater integration of multifunctional agricultural activities into the decision-making processes at the various levels of land management, such as provinces, municipalities or watersheds. This requires also that studies on farmland management include explicitly the different environmental and social contexts influencing farming activities. In this paper we aim to analyse how recent agronomic oriented research are facing and supporting various land management issues. We have compared five interdisciplinary PhD theses examining their definitions and methods of analysis for: the farming system, the local land management issues at stake, the spatial scale selected for the study, the stakeholders' involvement and the interaction with other disciplines. Common issues which emerged from this comparison are delivery of agro-environmental services, sustainable land management and landscape conservation. Multiple spatial levels were considered, which included at least one administrative unit of policy decision/implementation. Consequently, the explicit (re)definition of some agronomic concepts and methods was needed. Regarding the interdisciplinary framework, the theses have stressed the interactions among agronomy, geography and ecology. All theses aimed at delivering tools for decision-making support, mainly in the form of cartography. Nevertheless the participation of local stakeholders was generally included as a final step; herewith the settings of stakeholders' involvement were various. In conclusion, we discuss how the produced knowledge has enhanced the land management issues in local planning tools. On these bases, we stress finally the issues at stake to strengthen the roles and contributions of agronomic oriented education and research to agricultural land management and development. (Résumé d'auteur

    A Cloud-Based Architecture with embedded Pragmatics Renderer for Ubiquitous and Cloud Manufacturing

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    The paper presents a Cloud-based architecture for Ubiquitous and Cloud Manufacturing as a multilayer communicational architecture designated as the Communicational Architecture. It is characterised as (a) rich client interfaces (Rich Internet Application) with sufficient interaction to allow user agility and competence, (b) multimodal, for multiple client device classes support and (c) communicational to allow pragmatics, where human-to-human real interaction is completely supported. The main innovative part of this architecture is sustained by a semiotic framework organised on three main logical levels: (a) device level, which allows the user `to use' pragmatics with the system, (b) application level which results for a set of tools which allows users pragmatics-based interaction and (c) application server level that implements the Pragmatics renderer,a pragmatics supporting engine that supports all pragmatics services. The Pragmatics renderer works as a communication enabler, and consists of a set of integrated collaboration technology that makes the bridge between the user/devices and the `system'. A federated or community cloud is developed using a particular cloud REST ful Application Programming Interface that supports (cloud) services registration, composition and governance (pragmatics services behaves as SaaS in the cloud).The work is supported by the Portuguese National Funding Agency for science, research and technology (FCT), (1) Grant No. UID/CEC/00319/2013, and (2) `Ph.D. Scholarship Grant' reference SFRH/BD/85672/2012.info:eu-repo/semantics/publishedVersio

    SiMAMT: A Framework for Strategy-Based Multi-Agent Multi-Team Systems

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    Multi-agent multi-team systems are commonly seen in environments where hierarchical layers of goals are at play. For example, theater-wide combat scenarios where multiple levels of command and control are required for proper execution of goals from the general to the foot soldier. Similar structures can be seen in game environments, where agents work together as teams to compete with other teams. The different agents within the same team must, while maintaining their own ‘personality’, work together and coordinate with each other to achieve a common team goal. This research develops strategy-based multi-agent multi-team systems, where strategy is framed as an instrument at the team level to coordinate the multiple agents of a team in a cohesive way. A formal specification of strategy and strategy-based multi-agent multi-team systems is provided. A framework is developed called SiMAMT (strategy- based multi-agent multi-team systems). The different components of the framework, including strategy simulation, strategy inference, strategy evaluation, and strategy selection are described. A graph-matching approximation algorithm is also developed to support effective and efficient strategy inference. Examples and experimental results are given throughout to illustrate the proposed framework, including each of its composite elements, and its overall efficacy. This research make several contributions to the field of multi-agent multi-team systems: a specification for strategy and strategy-based systems, and a framework for implementing them in real-world, interactive-time scenarios; a robust simulation space for such complex and intricate interaction; an approximation algorithm that allows for strategy inference within these systems in interactive-time; experimental results that verify the various sub-elements along with a full-scale integration experiment showing the efficacy of the proposed framework

    LAIX-score : a design framework for live audience interaction management systems

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    This study focuses on computer-supported live audience interaction. In conventional lectures audience interacts explicitly with the performer for example by waving hand and asking question directly or clapping hands. For decades, non digital audience response systems have enabled simple multiple option audience interaction patterns. Modern mobile personal computing devices, digital projectors, wireless networks and real time software platforms enable creation of new kinds of interaction patterns that can significantly increase the amount of audience interaction during events. Audience interaction can make events for example more engaging and productive. This research presents a design framework for computer-supported live audience interaction called the LAIX-score. LAIX stands for Live Audience Interac(X)tion and the “score” refers to the musical notation language. Musical notation has been an inspiration for the development of the framework and illustrates how LAIX-score is intended as generic and practical framework for coordinating live audience interaction similarly as musical notation is generic and practical framework for coordinating musical performances. However, while musical notation is important inspiration, it is not the core reference for the LAIX-score. LAIX-score core references are the live audio mixing and live light control frameworks, which are technologyenabled frameworks for supporting and producing live performances. The LAIX-score framework is composed of five core elements: Interaction activities, interface channels, state control matrix, temporal management of interactions and participant’s identity management. These five core elements compose a concrete and comprehensive framework that can be directly applied in the design of live audience interaction management system and in the development of live audience interaction production practices. The research is a constructive and practice-led in the wild research (Chapter 2) that borrows aspects from design research, artistic research and human-computer interaction research. The LAIX-score framework is based on three core requirements identified during a five years of practice-led domain exploration (Chapter 3). (Requirement 1) Live audience interaction must support different kinds of interaction patterns. Hence, the framework should acknowledge that live audience interaction is more than questions and answers (Q&A) and poll type interaction patterns. (Requirement 2) Live audience interaction must support different roles. Hence, the role configuration in live audience interaction can include several different performer, audience and orchestrator roles. (Requirement 3) Live audience interaction framework must also support different kinds and parallel functions live audience interaction function. Hence, in the same event production live audience interaction may be used for example for audience activation, workshop facilitation, participatory decision making and catalyzing social networking, and these functions may take place concurrently. None of the existing live audience interaction systems satisfy all of the core requirements. This is explained in more detail in Section 4.2. Lack of adequate designs that meets the above mentioned criterias justifies the development of a new design framework. The LAIX-score (Chapter 5) follows a two dimensional matrix type control framework, which is called state control matrix. Also the core references, live audio mixing and live light control (Sections 4.3 –4.5), have similar control framework. Rows in the state control matrix are called as interaction activities. Columns in the state control matrix are interface channels, which is the system equivalent for supporting different roles and user interfaces (requirement 2). The matrix is used for visibility control of the interaction activities. The visibility of interaction activities can be manipulated independently in each interface channel. The matrix form satisfies the three core requirements. The first requirement is satisfied since the matrix format is agnostic to what kind of interactions are controlled in the system. The second requirement is satisfied since the matrix format allows introduction of new roles and there is fundamentally no fixed number for rows. The third requirement is satisfied since multiple interaction activities can be active in any channel and each interaction activity state can be controlled independently. The core framework is implemented as a functional live audience interaction management system called Presemo (version 4) (Chapter 6). The evaluation of the design of Presemo reveals more detailed fivetier structure for the control of interaction activities . The interaction activity control levels in LAIX-score design framework are (1.) creation and deletion, (2.) state control matrix, (3.) interaction pattern specific control, (4.) content management and (5.) presentation management. Presemo is limited implementation of the framework since the basic version supports only four interface channels. Presemo is a commercial level system and it has been utilized in thousands of live audience interaction situations and we have used it to produce more than 100 live audience interaction productions. The research investigates four case studies in more detail (Chapter 7). These four case studies are produced in different environments and this way demonstrate the generic qualities of Presemo and the LAIX-score design framework. One of the case study production focuses on professional event productions, another in application of Presemo in University context, third one focuses on use of live audience interaction in large scale computer-supported workshops and fourth one presents use of live audience interaction techniques in a pervasive adventure designed for K 12 students. The case studies validate the three core requirements and identifies 11 new additional requirements for the LAIX-score matrix. The case studies also reveal a more detailed interface channel structure. The revised LAIX-score design framework divides interface channels in three groups: organizer channels, audience channels and screen channels. Organizer channels combines performer and orchestrator roles, since these are roles that have some kind of control over interaction activities. Audience interface channels can be divided in groups. Screen channels are public channels whereas organizer and audience channels are personal channels. The 11 new requirements are further elaborated as two new core elements of the LAIX-score framework (Chapter 8): temporal management and identity management. Temporal management is divided in three parts; the functional cue list realizes the future temporal management, state control matrix realizes the real time management, and the production log realizes the management of past events. Identity management core element can be visualized as a table that lists all identities on one axis and different identity parameters on another axis. The study has identified six different types of identity attribute categories: identifiers, group membership, access rights, privacy settings, other identity and profile parameters and score attributes used for gamification. Identity attributes and privacy settings are used to manage identity parameters in order to achieve privacy and anonymity, which are important characteristics for most live audience interaction productions. Case studies have shown also that gamification is an important feature for live audience interaction. The core objective of the research is to create a framework for live audience interaction that could be generic and practical. As uch, the study is directly relevant extensive case reference of a live audience interaction system researchers and live audience interaction producers. The framework is adequately described so that any developer can utilize it in their own live audience interaction system designs. Methodologically the research has some areas of improvements mainly due to challenges in organizing data collection in demanding production environments (Section 9.3). These problems are common for in the wild research. The strengths of this research are extensive coverage of the live audience interaction domain and concrete validation of the framework as a production level implemented software system. While we have been developing the LAIX-score framework we have also identified several other research topics for live audience interaction (explained in Section 10.3) that are beyond the scope of the LAIX-score framework. There are for example several issues related to human and organizational factors of live audience interaction that are not covered in the LAIX-score framework, which is designed for the development of the computer system and production practices. These other research topics demonstrate how live audience interaction domain is still emerging domain with many interesting research possibilities. During the study, we have been involved in commercial development of live audience interaction. The business and marketing development (Section 10.4) will most probably be the driving force for the development of new interaction patterns, live audience interaction production formats, professional practices and generally new applications for live audience interaction. The further business and marketing development will define how organizations can adopt live audience interaction techniques and integrate them in to their communication and participation processes. The study proposes that standards organization would start defining protocols for live audience interaction. Details of wider adoption will ultimately define what kind of further research is relevant and feasible in the live audience interaction domain. The five core elements of the LAIX-score are integrated to each other and together they compose a comprehensive framework that can be used as design guideline for generic live audience interaction system (LAIMS). A LAIMS that is based on LAIX-score can host modularly different kinds of interaction patterns (Section 10.2). Modular approach can be also called s interaction agnostic approach. The modular approach may have several implications: modular approach makes development of new interaction patterns easier, support event productions that host different live audience interaction approaches, support sustainable system evolution and establishment of management practices for live audience interaction productions

    Supports from friends as predictors of stress and school outcomes during the transition to college: A longitudinal study

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    This study investigated relations among support from friends, stress, friendship goals, and school-related outcomes during the transition from high school to college. A conceptual framework was developed to examine a) the extent to which the degree of context change during the transition predicts levels of school belongingness and GPA; b) the extent to which stress mediates the potential relation between context change and school-related outcomes; c) the extent to which social supports from high school friends and college friends moderate the relation between stress and school related outcomes; and d) the extent to which precollege friendship formation and maintenance goals predict future levels of support from high school friends and college friends. Data were collected at four time points that represent major milestones in the transition process: (T1) precollege, (T2) the beginning of the first semester, (T3) the end of the first semester, and (T4) the beginning of the second semester. Psychometric properties of the support scales were investigated through confirmatory factor analysis. Descriptive statistics and results regarding mean variable change over time are provided. Multiple regression analyses replicated previous findings that stress negatively predicts school belongingness over time. Furthermore, perceived supports from college friends predicted increased college belonging over time, while perceived supports from high school friends did not. None of the support by stress interaction terms significantly predicted school outcomes, indicating that evidence for a moderation pathway was not found. Results from a latent variable path analysis did not provide evidence that a precollege goal to form friendships predicts future support from college friends, nor that a precollege goal to maintain friendships positively predicts future support from high school friends; models had only borderline fit. Implications and directions for future research are discussed

    An Overview of Diabetes Management in China: The Application of Innovative Care for Chronic Conditions Framework 中国糖尿病管理概述:慢性病创新照护模式的应用

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    China has the largest number of people with diabetes in the world. In the past, no overall assessment of diabetes management efforts has been done in China. Today diabetes has become a significant public health problem in China. It is imperative to gain a comprehensive view of diabetes management efforts within China’s specific socio-political infrastructure. In this study, the Innovative Care for Chronic Conditions framework (ICCC) comprised of Macro (policy environment), Meso (health care organization and community), and Micro (patient interaction) levels developed by World Health Organization was used as an analytic framework to demonstrate status and gaps in existing diabetes management in China. An integrative multi-level literature review was conducted using the ICCC framework. Multiple resources, including English and Chinese-language references databases and information from China governmental health websites, were used. Today, responsibilities for diabetes management in China are mainly delegated to health care providers. This effort could be enhanced and complemented by increased support from the government, more resources for diabetes management in the community; structures from health organizations, and stronger partnerships between health care organizations and the community. The roles of patients and their families in diabetes management should also be elevated. Researchers, health practitioners, policy makers and other stakeholders are able to use the findings to delineate optimal strategies for diabetes prevention and management. In the future, the ICCC framework can serve as the conceptual basis for chronic conditions situation analysis and health care system design in China

    The relationship between workplace bullying, social support and organisational and individual wellbeing.

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    The research discussed here forth pertains most dominantly to the moderating effect demonstrated by four different sources of social support on individual and organisational wellbeing in the presence of workplace bullying. Given the turbulent tensions cemented within a South African Apartheid past, bullying, particularly within the workplace, is a likely outcome channelled by conflicting sensations towards diversity. The foundational framework of the presented research was derived from the individual level factors depicted in Einarsen’s conceptual framework of the study and management of workplace bullying, and was implicitly modelled according to Cox and Mackay’s (1978, as cited in Cox & Mackay, 1985) transactional model centred on stressor-strain relationships coupled with associated buffers that may ameliorate the outcomes thereof. A plethora of research suggests that social support serves to operate effectively as a moderator within such a relationship, sufficing thus as a deciding factor in the formulation of the present study, where the stressor was conceptualised as workplace bullying, and the strain took the form of the potential adverse effects imposed on psychological wellbeing (individual wellbeing) and intention to leave (organisational wellbeing). Research has further provided evidence for organisational support from supervisors and colleagues, and external support from friends and family to be common instruments of assistance; the current study thereby sought to assess whether colleague, supervisor, friend, and family support would moderate the relationship between perceptions of bullying, psychological wellbeing and intention to leave. The present study further aimed to examine direct effects by assessing the existence of a relationship between perceptions of bullying, psychological wellbeing, intention to leave and these four sources of social support. Additionally the associations that exist between psychological wellbeing, intention to leave and the sources of support under observation were examined. Correlative analyses and moderated multiple regression analyses were conducted in order to decipher the nature of the relationships outlined above. Results yielded through moderated multiple regressions demonstrated that perceived social support from both colleagues and supervisors moderated the relationship between perceptions of bullying and intention to leave. It was additionally established that when analysed as a single variable, friends and family social support was able to demonstrate a significant inverse interaction effect on intention to leave in the presence of workplace bullying. Correlative analyses revealed that perceptions of bullying demonstrated an inverse association with supervisor support, suggesting thus that higher levels of supervisor support are associated with lower perceptions of bullying, and simultaneously that higher perceptions of bullying are associated with lower levels of supervisor support. Both colleague and supervisor support appeared to demonstrate inverse main effects for psychological wellbeing and intention to leave. Perceptions of bullying predicted the degree of variance vi explained in intention to leave. Therefore higher levels of bullying were found to predict higher levels of intention to leave. The present research therefore provided evidence for the buffering effect of social support, particularly support obtained from supervisors within the workplace, on psychological wellbeing and intention to leave, and colleagues for intention to leave in the presence of perceived workplace bullying. Additional individual-level factors worthy of future consideration, as detected by the current study included the function of childhood attachment, race, gender leadership, proximity, reciprocity, relational value and context specifity of the type and source support, propensity to seek support and coping. In conjunction with individual-level factors, organisational-level factors such as such as company culture, climate, context and industry, are essential factors to consider in the attempt to grasp a holistic understanding of the complexities that may function as precedents of the workplace bullying and social support process. The current study consequently recommended that future research account for the suggestions provided with regard to the limitations, theoretical and practical implications and potential resources utilisable in the subsistence of this process. In so doing, future research may aid in expounding an understandings of the severe experiences to which ‘victimised’ individuals are exposed, alongside the nature and function of various forms of support most effective for workplace difficulties. The responsibility to ensure that an organisation is functioning at optimum levels of productivity rests in the hands of Human Resources practitioners and industrial psychologists working within the organisation. The implications of failing such responsibility are severe; therefore it is necessary for such practitioners to grasp a holistic perspective of the underlying relational elements that operate within the workforce, and to consequently ensure the cultivation of a positive and productive work environment that is conducive to the nurturing of positive and productive employees. This may be aptly achieved through perpetual monitoring of both internal and external environments so as to detect and eradicate negative acts such as bullying, and thereby prevent the escalation of such events
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