An intelligent novel tripartite - (PSO-GA-SA) optimization strategy

A solution approach for many challenging and non-differentiable optimization tasks in industries is the use of non-deterministic meta-heuristic methods. Some of these approaches include Particle Swarm Optimization (PSO), Genetic Algorithm (GA), and Simulated Annealing (SA). However, with the implementation usage of these robust and stochastic optimization approaches, there are still some predominant issues such as the problem of the potential solution being trapped in a local minima solution space. Other challenges include the untimely convergence and the slow rate of arriving at optimal solutions. In this research study, a tripartite version (PSO-GA-SA) is proposed to address these deficiencies. This algorithm is designed with the full exploration of all the capabilities of PSO, GA and SA functioning simultaneously with a high level of intelligent system techniques to exploit and exchange relevant population traits in real time without compromising the computational time. The design algorithm further incorporates a variable velocity component that introduces random intelligence depending on the fitness performance from one generation to the other. The robust design is validated with known mathematical test function models. There are substantial performance improvements when the novel PSO-GA-SA approach is subjected to three test functions used as case studies. The results obtained indicate that the new approach performs better than the individual methods from the fitness function deviation point of view and in terms of the total simulation time whilst operating with both a reduced number of generations and populations. Moreover, the new novel approach offers more beneficial trade-off between exploration and exploitation of PSO, GA and SA. This novel design is implemented using an object oriented programming approach and it is expected to be compatible with a variety of practical problems with specified input-output pairs coupled with constraints and limitations on the available resources

An autonomous satellite architecture integrating deliberative reasoning and behavioural intelligence

This paper describes a method for the design of autonomous spacecraft, based upon behavioral approaches to intelligent robotics. First, a number of previous spacecraft automation projects are reviewed. A methodology for the design of autonomous spacecraft is then presented, drawing upon both the European Space Agency technological center (ESTEC) automation and robotics methodology and the subsumption architecture for autonomous robots. A layered competency model for autonomous orbital spacecraft is proposed. A simple example of low level competencies and their interaction is presented in order to illustrate the methodology. Finally, the general principles adopted for the control hardware design of the AUSTRALIS-1 spacecraft are described. This system will provide an orbital experimental platform for spacecraft autonomy studies, supporting the exploration of different logical control models, different computational metaphors within the behavioral control framework, and different mappings from the logical control model to its physical implementation

An introduction to STRIKE : STRuctured Interpretation of the Knowledge Environment

Knowledge forms a critical part of the income generation of the system and the complex environment in which actors participate in the creation of knowledge assets merits robust, eclectic consideration. STRIKE - STRuctured Interpretation of the Knowledge Environment affords an unobtrusive and systematic framework to observe, record, evaluate and articulate concrete and abstract elements of a setting, across internal and external dimensions. Inter-relationships between actor and environment are preserved. STRIKE is supported by underlying techniques to enrich data and enhance the authenticity of its representation. Adoption of photography and videography tools provides illustrative and interpretive benefits and facilitates researcher reflexivity. This structured approach to data analysis and evaluation mitigates criticisms of methodological rigour in observational research and affords standardisation potential, germane for application in a verification or longitudinal capacity. Advancing exploratory validation studies, the method is employed to evaluate the knowledge environments of two enterprises in the UK creative sector. These occupy a critical role in fostering entrepreneurial innovation alongside participant self-efficacy. Access Space in Sheffield and the Bristol Hackspace are committed to open software, open knowledge and open participation; sharing peer learning, creativity and socio-technical aims to address broadly similar community needs. Drawing on Wittgenstein’s Picture Theory of Meaning, the knowledge management perspective is abstracted from the STRIKE assessment. It is argued that the tiered analytical approach which considers a breadth of dimensions enhances representation and interpretation of the knowledge environment and presents a diagnostic and prescriptive capability to actualise change. The paper concludes by evaluating framework effectiveness, findings application and future direction

Golden Opportunity or False Hope? Anglogold Ashanti's Proposed Gold Mine in the Democratic Republic of Congo

Deals with the exploitation of resourcesin DR

Joint observation of student teaching and related tripartite dialogue during field experience : Partner perspectives

Peer reviewedPostprin

Imaginative Value Sensitive Design: How Moral Imagination Exceeds Moral Law Theories in Informing Responsible Innovation

Safe-by-Design (SBD) frameworks for the development of emerging technologies have become an ever more popular means by which scholars argue that transformative emerging technologies can safely incorporate human values. One such popular SBD methodology is called Value Sensitive Design (VSD). A central tenet of this design methodology is to investigate stakeholder values and design those values into technologies during early stage research and development (R&D). To accomplish this, the VSD framework mandates that designers consult the philosophical and ethical literature to best determine how to weigh moral trade-offs. However, the VSD framework also concedes the universalism of moral values, particularly the values of freedom, autonomy, equality trust and privacy justice. This paper argues that the VSD methodology, particularly applied to nano-bio-info-cogno (NBIC) technologies, has an insufficient grounding for the determination of moral values. As such, an exploration of the value-investigations of VSD are deconstructed to illustrate both its strengths and weaknesses. This paper also provides possible modalities for the strengthening of the VSD methodology, particularly through the application of moral imagination and how moral imagination exceed the boundaries of moral intuitions in the development of novel technologies

Cartographies for a navigation through timbral dramaturgies

This commentary accompanies a portfolio of works composed between 2018 and 2021. My research explores a cartographic approach to conceiving timbre and dramaturgy. I see the cartographic approach as an orientation exercise or scheme of thought combining graphics, sketches, notes, drawings, and manuscripts to obtain a project’s overview and to navigate structural relationships in ‘sonic places’. I conceive sonic places as acoustic realities inhabited and travelled by the listener through the pathways proposed in my works. My pieces follow an expansion principle from timbre to dramaturgy using analogical and flexible skills. On one hand, the analogical tactics of this principle involve explorations on large sheets of paper, the use of domestic objects, and the manipulation of instruments by myself to define the behaviour and organization of events. On the other hand, the flexible tools of my expansion principle contain translations between notation and other aspects of my projects such as stage design, visual elements, or movements, stimulating greater freedom to explore relationships between the multiple dimensions of my projects. In the submitted pieces, the imagination of timbre emerges from strategies such as mapping sound landscapes or explorations with graphics where their components are combined, orchestrated, overlapped, and amplified by a system of categories that organise sonic events and textures in terms of hierarchy, geometry, pathway, and density. Furthermore, these categories consider expansions from timbre toward spatial and visual elements and, particularly, addressing a notion of dramaturgy embodied in the idea of ‘acts’ deduced from a text, the observation of a performance space, or from the issue that inspired the project

The art object does not embody a form of knowledge

This paper makes explicit the claim that the proper goal of visual arts research is visual art. This claim is consistent with the view held by many scholars in the visual arts community, who see art as a form of research (cf. K. Macleod and L. Holdridge, Thinking through Art: Reflections on Art as Research, London: Routledge, 2006), but accept that research is an original investigation undertaken in order to gain knowledge and understanding. This being the case, the knowledge acquired either resides in the art object and/or secondary outcomes (e.g., a texts). This paper argues against the proposition that the art object is a form of knowledge. Although consistent with Biggs' (2002) paper 'The role of the artefact in art and design research', published in International Journal of Design Sciences and Technology. 10:2, 19-24 (which did not actually appear in print until 2004), Biggs holds to the above definition of research and subsequently focuses on experiential knowledge (2004). However, if, as claimed here, the proper goal of visual arts research is visual art, and if visual art is not a form of knowledge, then visual arts research is not in essence a knowledge acquisition process. This dilemma is resolved by proposing that visual art making serves a different purpose to knowledge acquisition and that visual arts research would be better described as original creation undertaken in order to generate novel apprehension, thus developing the fundamental proposition presented a paper published by the author in the International Journal of Design Sciences and Technology in 2002. Biggs, M. A. R. (2004). Learning from Experience: approaches to the experiential component of practice-based research. Forskning-Reflektion-Utveckling. H. Karlsson. Stockholm, Swedish Research Council: 6-21. Scrivener, S.A.R. (2002) Characterising creative-production doctoral projects in art and design. International Journal of Design Sciences and Technology, 10(2), pp. 25 - 44. (appeared 2004