40 research outputs found

    Ontology-Based Open-Corpus Personalization for E-Learning

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    Conventional closed-corpus adaptive information systems control limited sets of documents in predefined domains and cannot provide access to the external content. Such restrictions contradict the requirements of today, when most of the information systems are implemented in the open document space of the World Wide Web and are expected to operate on the open-corpus content. In order to provide personalized access to open-corpus documents, an adaptive system should be able to maintain modeling of new documents in terms of domain knowledge automatically and dynamically. This dissertation explores the problem of open-corpus personalization and semantic modeling of open-corpus content in the context of e-Learning. Information on the World Wide Web is not without structure. Many collections of online instructional material (tutorials, electronic books, digital libraries, etc.) have been provided with implicit knowledge models encoded in form of tables of content, indexes, headers of chapters, links between pages, and different styles of text fragments. The main dissertation approach tries to leverage this layer of hidden semantics by extracting and representing it as coarse-grained models of content collections. A central domain ontology is used to maintain overlay modeling of students’ knowledge and serves as a reference point for multiple collections of external instructional material. In order to establish the link between the ontology and the open-corpus content models a special ontology mapping algorithm has been developed. The proposed approach has been applied in the Ontology-based Open-corpus Personalization Service that recommends and adaptively annotates online reading material. The domain of Java programming has been chosen for the proof-of-concept implementation. A controlled experiment has been organized to evaluate the developed adaptive system and the proposed approach overall. The results of the evaluation have demonstrated several significant learning effects of the implemented open-corpus personalization. The analysis of log-based data has also shown that the open-corpus version of the system is capable of providing personalization of similar quality to the close-corpus one. Such results indicate that the proposed approach successfully supports open-corpus personalization for e-Learning. Further research is required to verify if the approach remains effective in other subject domains and with other types of instructional content

    Object-orientation and integration for modelling water resource systems using the ACRU model.

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    Doctoral Degree. University of KwaZulu-Natal, Pietermaritzburg.Water is a limiting resource in South Africa, with demand in many catchments exceeding supply, necessitating transfers of water between catchments. This situation requires detailed and integrated management of the country’s water resources, considering environmental, social and economic aspects as outlined in the National Water Act (Act 36 of 1998). Integrated water resources management (IWRM) will require better data and information through monitoring and integrated water resources modelling. The ACRU hydrological model is an important repository of South African water research and knowledge. In recent years there have been technological advances in computer programming techniques and model integration. The thesis for this study was that the valuable knowledge already existing in the ACRU model could be leveraged to provide a better hydrological model to support IWRM in South Africa by: (i) restructuring the model using object-oriented design and programming techniques, and (ii) implementing a model interface standard. Object-oriented restructuring of the ACRU model resulted in a more flexible model enabling better representation of complex water resource systems. The restructuring also resulted in a more extensible model to facilitate the inclusion of new modules and improved data handling. A new model input structure was developed using Extensible Markup Language (XML) to complement the object-oriented structure of the ACRU model. It was recognised that different models have different purposes and strengths. The OpenMI 2.0 model interface standard was implemented for ACRU, enabling ntegration with other OpenMI 2.0 compliant specialised models representing different domains to provide a more holistic IWRM view of water resource systems. Model integration using OpenMI was demonstrated by linking ACRU to the eWater Source river network model. A case study in the upper uMngeni Catchment in South Africa demonstrated: (i) the benefits of the object-oriented design of the restructured ACRU model, in the context of using ACRU to create modelled catchment-scale water resource accounts, and (ii) the integration of ACRU with another model using OpenMI. The case study also demonstrated that despite the improvements to the ACRU model, the simulations are only as good as the model input data

    Innovations for Requirements Analysis, From Stakeholders' Needs to Formal Designs

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    14th MontereyWorkshop 2007 Monterey, CA, USA, September 10-13, 2007 Revised Selected PapersWe are pleased to present the proceedings of the 14thMontereyWorkshop, which took place September 10–13, 2007 in Monterey, CA, USA. In this preface, we give the reader an overview of what took place at the workshop and introduce the contributions in this Lecture Notes in Computer Science volume. A complete introduction to the theme of the workshop, as well as to the history of the Monterey Workshop series, can be found in Luqi and Kordon’s “Advances in Requirements Engineering: Bridging the Gap between Stakeholders’ Needs and Formal Designs” in this volume. This paper also contains the case study that many participants used as a problem to frame their analyses, and a summary of the workshop’s results

    MULTI-MODAL TASK INSTRUCTIONS TO ROBOTS BY NAIVE USERS

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    This thesis presents a theoretical framework for the design of user-programmable robots. The objective of the work is to investigate multi-modal unconstrained natural instructions given to robots in order to design a learning robot. A corpus-centred approach is used to design an agent that can reason, learn and interact with a human in a natural unconstrained way. The corpus-centred design approach is formalised and developed in detail. It requires the developer to record a human during interaction and analyse the recordings to find instruction primitives. These are then implemented into a robot. The focus of this work has been on how to combine speech and gesture using rules extracted from the analysis of a corpus. A multi-modal integration algorithm is presented, that can use timing and semantics to group, match and unify gesture and language. The algorithm always achieves correct pairings on a corpus and initiates questions to the user in ambiguous cases or missing information. The domain of card games has been investigated, because of its variety of games which are rich in rules and contain sequences. A further focus of the work is on the translation of rule-based instructions. Most multi-modal interfaces to date have only considered sequential instructions. The combination of frame-based reasoning, a knowledge base organised as an ontology and a problem solver engine is used to store these rules. The understanding of rule instructions, which contain conditional and imaginary situations require an agent with complex reasoning capabilities. A test system of the agent implementation is also described. Tests to confirm the implementation by playing back the corpus are presented. Furthermore, deployment test results with the implemented agent and human subjects are presented and discussed. The tests showed that the rate of errors that are due to the sentences not being defined in the grammar does not decrease by an acceptable rate when new grammar is introduced. This was particularly the case for complex verbal rule instructions which have a large variety of being expressed

    Англійська мова для студентів електромеханічних спеціальностей

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    Навчальний посібник розрахований на студентів напряму підготовки 6.050702 Електромеханіка. Містить уроки, що структуровані за тематичними розділами, граматичний коментар, короткі англо-український і українсько- англійський словники та додатки, які спрямовані на закріплення загальних навичок володіння англійською мовою. Акцентований на ɨсобливості термінології, що застосовується у науково-технічній галузі, зокрема, в електромеханіці та виконання запропонованих завдань, що буде сприяти формуванню навичок перекладу з англійської та української мов, сприйняттю письмової та усної англійської мови, вмінню письмового викладення англійською мовою науково-технічних та інших текстів під час професійної діяльності, спілкуванню з професійних та загальних питань тощо

    Typing the Dancing Signifier: Jim Andrews' (Vis)Poetics

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    This study focuses on the work of Jim Andrews, whose electronic poems take advantage of a variety of media, authoring programs, programming languages, and file formats to create poetic experiences worthy of study. Much can be learned about electronic textuality and poetry by following the trajectory of a poet and programmer whose fascination with language in programmable media leads him to distinctive poetic explorations and collaborations. This study offers a detailed exploration of Andrews' poetry, motivations, inspirations, and poetics, while telling a piece of the story of the rise of electronic poetry from the mid 1980s until the present. Electronic poetry can be defined as first generation electronic objects that can only be read with a computer--they cannot be printed out nor read aloud without negating that which makes them "native" to the digital environment in which they were created, exist, and are experienced in. If translated to different media, they would lose the extra-textual elements that I describe in this study as behavior. These "behaviors" electronic texts exhibit are programmed instructions that cause the text to be still, move, react to user input, change, act on a schedule, or include a sound component. The conversation between the growing capabilities of computers and networks and Andrews' poetry is the most extensive part of the study, examining three areas in which he develops his poetry: visual poetry (from static to kinetic), sound poetry (from static to responsive), and code poetry (from objects to applications). In addition to being a literary biography, the close readings of Andrews' poems are media-specific analyses that demonstrate how the software and programming languages used shape the creative and production performances in significant ways. This study makes available new materials for those interested in the textual materiality of Andrews' videogame poem, Arteroids, by publishing the Arteroids Development Folder--a collection of source files, drafts, and old versions of the poem. This collection is of great value to those who wish to inform readings of the work, study the source code and its programming architecture, and even produce a critical edition of the work

    Development of a computer-aided design supporting system for transformative product design

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    Modern product innovation is often delivered by fusing technologies from different domains. To meet the current speedy pressure of product innovation, the conceptual design is a very critical stage to develop an innovative product. This research presents a new design paradigm, Transformative Product Design (TPD), to meet the demands in the conceptual design. TPD aims to design a new product from a combination out of a base product and reference products, which have been developed. To expedite the TPD paradigm, Interaction Network is introduced to represent a product design by following a representative product design representation method in the teleological perspective. However, generating an interaction network of a product is very cumbersome and somewhat subjective. In the past decade, a few research works have been reported to identify functions of a product in a systematic way. They are not satisfactory to develop an interaction network for TPD systematically. To systematically generate an interaction network, this research adopts functional requirements in design documents as the source of the proposed method. The proposed method in this research aims to identify functions, structures and dynamic behaviors between structures from the functional descriptions in natural (English) language by adapting natural language-based object identification methods in the software engineering. Another aim of this research is to provide semantic capability to utilize the use of a natural language throughout the design transformation process, taking into account cross-disciplinary design knowledge that domain experts could struggle if the knowledge is beyond their expertise. To fulfill the demand, this research builds research methods for the design transformation, based on the proposed similarity score, i.e., Stem-POS based Similarity Score. By employing the proposed score, this research detects concept functions and generates transformative design alternatives with interaction networks. Additionally, for the design transformation, the degree of transformability is to check how much products are semantically related each other, by adapting the semantic similarity score. Finally the proposed methods have been implemented in a Computer-Aided Transformative Design (CATPD) supporting system with minor human involvement to a minimum. The proposed methods and the system are validated according to Stieglitz\u27s convergence types

    How to DO(O) Things with Sounds: A Performative (Re)User Manual

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    Contemporary theorising within the field of sound art practice emphasises the pursuit and function of listening as a central tenet in forming understanding and content. This research goes some way to re-balance this bias by shifting the weight of significance from listening to sounding and its practices. In its vernacular understanding, listening is commonly attributed to the human subject, whereas the potential to sound is shared by both the animate and the inanimate. It is with this in mind that I posit a doing of sound, whether anthropomorphically generated or not, as being crucial in thinking in, through and with sound. In this thesis, I examine a performative materialism of the sonic. I advance the concept of a shared ontology between the sonic and the performative via an original application of what has been called the Performative Turn in art and the humanities, to sound art practice and its related theory. This research contributes a unique merger of concepts that are often considered to be in opposition. In combining theories that stress the primacy of objects with those that foreground agency, I am suggesting procedures for relational and generative sonic pedagogies that differ from currently accepted practices. Moreover, this adaptation moves the relational within these concepts to centre stage, creating a thinking that is disposed toward deed and emergence rather than thingness I expound a Deed-Oriented Ontology (DOO) of the sonic through a conceptual re-purposing of recent trends in philosophy, such as object-oriented ontology (OOO), speculative realism and new materialism. This is predominantly achieved by using outcomes that employ variations upon the theme of performance presentation and lecture-event. The structure of this thesis is such that it makes use of performative-writing practices and materiality (be that of text or sound or performance) as possessing modes of transformation, organisation and knowledge dissemination. Central to this thesis is the idea that sound art is capable of generating its own kind of thinking which is only accessible through practice-led procedures or doing-thinking
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