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| | <h4>A. Holt</h4> |
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| | <p>This article outlines similarity applied to the general environment and geographical information domains. The hypothesis is if physical and social sciences manifest similar amenities, then similarity would be a generative technique to analyse the cached information inherent in the data retrieved. Similarity is examined concerning the spatial grouping of natural kinds in a complex environment.</p> |
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| | <p><a href="papers/dp2000-01.pdf.gz">Download</a> (gzipped PDF, 165KB)</p> |
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| | <p><a href="papers/dp2000-01.pdf">Download</a> (PDF, 206 KB)</p> |
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| | <hr> |
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| | <h4>S. Cranefield and M.K. Purvis</h4> |
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| | <p>An approach is presented for incorporating metatata constraints into queries to be processed by a distributed environmental information system. The approach, based on a novel metamodel unifying concepts from the Unified Modelling Language (UML), the Object Query Language (OQL), and the Resource Description Framework (RDF), allows metadata information to be represented and processed in combination with regular data queries.</p> |
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| | <p><a href="papers/dp2000-02.pdf.gz">Download</a> (gzipped PDF, 126KB)</p> |
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| | <p><a href="papers/dp2000-02.pdf">Download</a> (PDF, 134 KB)</p> |
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| | <hr> |
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| | <h4>J. Taylor, N. Kasabov and R. Kilgour</h4> |
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| | <p>We report on the clustering of nodes in internally represented acoustic space. Learners of different languages partition perceptual space distinctly. Here, an Evolving Connectionist-Based System (ECOS) is used to model the perceptual space of New Zealand English. Currently, the system evolves in an unsupervised, self-organising manner. The perceptual space can be visualised, and the important features of the input patterns analysed. Additionally, the path of the internal representations can be seen. The results here will be used to develop a supervised system that can be used for speech recognition based on the evolved, internal sub-word units.</p> |
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| | <p><a href="papers/dp2000-03.pdf.gz">Download</a> (gzipped PDF, 117KB)</p> |
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| | <hr> |
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| | <h3><a name="dp2000-04">2000/04: Analysis of the New Zealand and Mäori on-line translator</a></h3> |
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| | <p><a href="papers/dp2000-03.pdf">Download</a> (PDF, 125 KB)</p> |
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| | <hr> |
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| | <h3><a name="dp2000-04">2000/04: Analysis of the New Zealand and M<span style="text-decoration:overline">a</span>ori on-line translator</a></h3> |
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| | <h4>M. Laws, R. Kilgour and M. Watts</h4> |
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| | <p>The English and Mäori word translator <EM>ngä aho whakamäori-ä-tuhi</EM> was designed to provide single head-word translations to on-line web users. There are over 13,000 words all based on traditional text sources, derived because of their high frequency used within each of the respective languages. The translator has been operational for well over a year now, and it has had the highest web traffic usage in the Department of Information Science. Two log files were generated to record domain hits and language translations, both provided the up-to-date data for analysis contained in this paper.</p> |
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| | <p><a href="papers/dp2000-04.pdf.gz">Download</a> (gzipped PDF, 183KB)</p> |
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| | <hr> |
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| | <h3><a name="dp2000-05">2000/05: Development of a Mäori database for speech perception and generation</a></h3> |
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| | <p>The English and M<span style="text-decoration:overline">a</span>ori word translator ng<span style="text-decoration:overline">a</span> aho whakam<span style="text-decoration:overline">a</span>ori-<span style="text-decoration:overline">a</span>-tuhi was designed to provide single head-word translations to on-line web users. There are over 13,000 words all based on traditional text sources, derived because of their high frequency used within each of the respective languages. The translator has been operational for well over a year now, and it has had the highest web traffic usage in the Department of Information Science. Two log files were generated to record domain hits and language translations, both provided the up-to-date data for analysis contained in this paper.</p> |
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| | <p><a href="papers/dp2000-04.pdf">Download</a> (PDF, 202 KB)</p> |
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| | <hr> |
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| | <h3><a name="dp2000-05">2000/05: Development of a M<span style="text-decoration:overline">a</span>ori database for speech perception and generation</a></h3> |
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| | <h4>M. Laws</h4> |
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| | <p>Mäori speech data collection and analysis is an ongoing process, as new and existing data sets are continuously accessed for many different experimental speech perception and generation processing tasks. A data management system is an important tool to facilitate the systematic techniques applied to the speech and language data. Identification of the core components for Mäori speech and language databases, translation systems, speech recognition and speech synthesis have been undertaken as research themes. The latter component will be the main area of discussion here. So to hasten the development of Mäori speech synthesis, joint collaborative research with established international projects has begun. This will allow the Mäori language to be presented to the wider scientific community well in advance of other similar languages, many times it’s own size and distribution. Propagation of the Mäori language via the information communication technology (ICT) medium is advantageous to it’s long term survival.</p> |
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| | <p><a href="papers/dp2000-05.pdf.gz">Download</a> (gzipped PDF, 228KB)</p> |
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| | <p>M<span style="text-decoration:overline">a</span>ori speech data collection and analysis is an ongoing process, as new and existing data sets are continuously accessed for many different experimental speech perception and generation processing tasks. A data management system is an important tool to facilitate the systematic techniques applied to the speech and language data. Identification of the core components for M<span style="text-decoration:overline">a</span>ori speech and language databases, translation systems, speech recognition and speech synthesis have been undertaken as research themes. The latter component will be the main area of discussion here. So to hasten the development of M<span style="text-decoration:overline">a</span>ori speech synthesis, joint collaborative research with established international projects has begun. This will allow the M<span style="text-decoration:overline">a</span>ori language to be presented to the wider scientific community well in advance of other similar languages, many times it’s own size and distribution. Propagation of the M<span style="text-decoration:overline">a</span>ori language via the information communication technology (ICT) medium is advantageous to it’s long term survival.</p> |
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| | <p><a href="papers/dp2000-05.pdf">Download</a> (PDF, 243 KB)</p> |
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| | <hr> |
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| | <h4>D. Deng and N. Kasabov</h4> |
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| | <p>In real world information systems, data analysis and processing are usually needed to be done in an on-line, self-adaptive way. In this respect, neural algorithms of incremental learning and constructive network models are of increased interest. In this paper we present a new algorithm of evolving self-organizing map (ESOM), which features fast one-pass learning, dynamic network structure, and good visualisation ability. Simulations have been carried out on some benchmark data sets for classification and prediction tasks, as well as on some macroeconomic data for data analysis. Compared with other methods, ESOM achieved better classification with much shorter learning time. Its performance for time series modelling is also comparable, requiring more hidden units but with only one-pass learning. Our results demonstrate that ESOM is an effective computational model for on-line learning, data analysis and modelling.</p> |
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| | <p><a href="papers/dp2000-06.pdf.gz">Download</a> (gzipped PDF, 178KB)</p> |
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| | <p><a href="papers/dp2000-06.pdf">Download</a> (PDF, 233 KB)</p> |
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| | <hr> |
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| | <h4>S. Cranefield and M.K. Purvis</h4> |
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| | <p>It is canonical practice in agent-based systems to use a declarative format for the exchange of information. The increasing usage and facility of object-oriented tools and techniques, however, suggests there may be benefits in combining the use of object-oriented modelling approaches with agent-based messaging. In this paper we outline our efforts in connection with the New Zealand Distributed Information Systems project to use object-oriented knowledge representation in an agent-based architecture. Issues and tradeoffs are discussed, as well as the possible extensions to current agent-based message protocols that may be necessary in order to support object-oriented information exchange.</p> |
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| | <p><a href="papers/dp2000-07.pdf.gz">Download</a> (gzipped PDF, 69KB)</p> |
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| | <p><a href="papers/dp2000-07.pdf">Download</a> (PDF, 85 KB)</p> |
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| | <hr> |
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| | <h4>S. Cranefield, M.K. Purvis and M. Nowostawski</h4> |
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| | <p>This paper describes a system of interlinked ontologies to describe the concepts underlying FIPA agent communication. A meta-modelling approach is used to relate object-oriented domain ontologies and abstract models of agent communication and content languages and to describe them in a single framework. The modelling language used is the Unified Modeling Language, which is extended by adding the concepts of resource and reference. The resulting framework provides an elegant basis for the development of agent systems that combine object-oriented information representation with agent messaging protocols.</p> |
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| | <p><a href="papers/dp2000-08.pdf.gz">Download</a> (gzipped PDF, 78KB)</p> |
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| | <p><a href="papers/dp2000-08.pdf">Download</a> (PDF, 100 KB)</p> |
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| | <hr> |
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| | <h3><a name="dp2000-09">2000/09: A viewpoint-based framework for discussing the use of multiple modelling representations</a></h3> |
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| | <h4>N. Stanger</h4> |
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| | <p>When modelling a real-world phenomenon, it can often be useful to have multiple descriptions of the phenomenon, each expressed using a different modelling approach or <EM>representation</EM>. Different representations such as entity-relationship modelling, data flow modelling and use case modelling allow analysts to describe different aspects of real-world phenomena, thus providing a more thorough understanding than if a single representation were used. Researchers working with multiple representations have approached the problem from many different fields, resulting in a diverse and potentially confusing set of terminologies. In this paper is described a viewpoint-based framework for discussing the use of multiple modelling representations to describe real-world phenomena. This framework provides a consistent and integrated terminology for researchers working with multiple representations. An abstract notation is also defined for expressing concepts within the framework.</p> |
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| | <p><a href="papers/dp2000-09.pdf.gz">Download</a> (gzipped PDF, 377KB)</p> |
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| | <p>When modelling a real-world phenomenon, it can often be useful to have multiple descriptions of the phenomenon, each expressed using a different modelling approach or representation. Different representations such as entity-relationship modelling, data flow modelling and use case modelling allow analysts to describe different aspects of real-world phenomena, thus providing a more thorough understanding than if a single representation were used. Researchers working with multiple representations have approached the problem from many different fields, resulting in a diverse and potentially confusing set of terminologies. In this paper is described a viewpoint-based framework for discussing the use of multiple modelling representations to describe real-world phenomena. This framework provides a consistent and integrated terminology for researchers working with multiple representations. An abstract notation is also defined for expressing concepts within the framework.</p> |
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| | <p><a href="papers/dp2000-09.pdf">Download</a> (PDF, 478 KB)</p> |
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| | <hr> |
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| | <h4>P. Whigham and C. Aldridge</h4> |
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| | <p>Most applications of Genetic Programming to time series modeling use a fitness measure for comparing potential solutions that treat each point in the time series independently. This non-temporal approach can lead to some potential solutions being given a relatively high fitness measure even though they do not correspond to the training data when the overall shape of the series is taken into account. This paper develops two fitness measures which emphasize the concept of shape when measuring the similarity between a training and evolved time series. One approach extends the root mean square error to higher dimensional derivatives of the series. The second approach uses a simplified derivative concept that describes shape in terms of positive, negative and zero slope.</p> |
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| | <p><a href="papers/dp2000-10.pdf.gz">Download</a> (gzipped PDF, 432KB)</p> |
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| | <p><a href="papers/dp2000-10.pdf">Download</a> (PDF, 561 KB)</p> |
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| | <hr> |
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| | <h3><a name="dp2000-11">2000/11: Translating descriptions of a viewpoint among different representations</a></h3> |
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| | <h4>N. Stanger</h4> |
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| | <p>An important part of the systems development process is building models of real-world phenomena. These phenomena are described by many different kinds of information, and this diversity has resulted in a wide variety of modelling representations. Some types of information are better expressed by some representations than others, so it is sensible to use multiple representations to describe a real-world phenomenon. The author has developed an approach to facilitating the use of multiple representations within a single viewpoint by translating descriptions of the viewpoint among different representations. An important issue with such translations is their <EM>quality</EM>, or how well they map constructs of one representation to constructs of another representation. Two possible methods for improving translation quality, <EM>heuristics</EM> and <EM>enrichment</EM>, are proposed in this paper, and a preliminary metric for measuring relative translation quality is described.</p> |
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| | <p><a href="papers/dp2000-11.pdf.gz">Download</a> (gzipped PDF, 376KB)</p> |
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| | <p>An important part of the systems development process is building models of real-world phenomena. These phenomena are described by many different kinds of information, and this diversity has resulted in a wide variety of modelling representations. Some types of information are better expressed by some representations than others, so it is sensible to use multiple representations to describe a real-world phenomenon. The author has developed an approach to facilitating the use of multiple representations within a single viewpoint by translating descriptions of the viewpoint among different representations. An important issue with such translations is their quality, or how well they map constructs of one representation to constructs of another representation. Two possible methods for improving translation quality, heuristics and enrichment, are proposed in this paper, and a preliminary metric for measuring relative translation quality is described.</p> |
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| | <p><a href="papers/dp2000-11.pdf">Download</a> (PDF, 474 KB)</p> |
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| | <hr> |
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| | <p><strong>Keywords: </strong>distributed systems, |
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| | workflow, |
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| | process modelling</p> |
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| | <p><a href="papers/dp2000-12.pdf.gz">Download</a> (gzipped PDF, 134KB)</p> |
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| | <p><a href="papers/dp2000-12.pdf">Download</a> (PDF, 195 KB)</p> |
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| | <hr> |
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| | <h4>M. Nowostawski, G. Bush, M.K. Purvis and S. Cranefield</h4> |
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| | <p>The use of modelling abstractions to map from items in the real-world to objects in the computational domain is useful both for the effective implementation of abstract problem solutions and for the management of software complexity. This paper discusses the new approach of agent-oriented software engineering (AOSE), which uses the notion of an autonomous agent as its fundamental modelling abstraction. For the AOSE approach to be fully exploited, software engineers must be able to gain leverage from an agent software architecture and framework, and there are several such frameworks now publicly available. At the present time, however, there is little information concerning the options that are available and what needs to be considered when choosing or developing an agent framework. We consider three different agent software architectures that are (or will be) publicly available and evaluate some of the design and architectural differences and trade-offs that are associated with them and their impact on agent-oriented software development. Our discussion examines these frameworks in the context of an example in the area of distributed information systems.</p> |
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| | <p><a href="papers/dp2000-13.pdf.gz">Download</a> (gzipped PDF, 207KB)</p> |
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| | <p><a href="papers/dp2000-13.pdf">Download</a> (PDF, 222 KB)</p> |
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| | <hr> |
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| | <p><strong>Keywords: </strong>electronic medical consultation, |
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| | on-line health, |
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| | New Zealand</p> |
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| | <p><a href="papers/dp2000-14.pdf.gz">Download</a> (gzipped PDF, 60KB)</p> |
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| | <p><a href="papers/dp2000-14.pdf">Download</a> (PDF, 80 KB)</p> |
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| | <hr> |
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| | <h4>D. Deng and N. Kasabov</h4> |
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| | <p>Although widely studied for many years, colour image quantisation remains a challenging problem. We propose to use an evolving self-organising map model for the on-line image quantisation tasks. Encouraging results are obtained in experiments and we look forward to implementing the algorithm in real world applications with further improvement.</p> |
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| | <p><a href="papers/dp2000-16.pdf.gz">Download</a> (gzipped PDF, 2.1MB)</p> |
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| | <p><a href="papers/dp2000-16.pdf">Download</a> (PDF, 2.2 MB)</p> |
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| | <hr> |
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| | <h4>D. Clark</h4> |
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| | <p>In a consensus ensemble all members must agree before they classify a data point. But even when they all agree some data is still misclassified. In this paper we look closely at consistently misclassified data to investigate whether some of it may be outliers or may have been mislabeled.</p> |
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| | <p><a href="papers/dp2000-17.pdf.gz">Download</a> (gzipped PDF, 198KB)</p> |
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| | <p><a href="papers/dp2000-17.pdf">Download</a> (PDF, 331 KB)</p> |
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| | <hr> |
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| | design tools and techniques, |
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| | entity-relationship model, |
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| | software metrics</p> |
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| | <p><a href="papers/dp2000-18.pdf.gz">Download</a> (gzipped PDF, 81KB)</p> |
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| | <p><a href="papers/dp2000-18.pdf">Download</a> (PDF, 112 KB)</p> |
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| | <hr> |
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| | <h4>D. Clark</h4> |
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| | <p>In any data set there some of the data will be bad or noisy. This study identifies two types of noise and investigates the effect of each in the training data of backpropagation neural networks. It also compares the mean square error function with a more robust alternative advocated by Huber.</p> |
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| | <p><a href="papers/dp2000-19.pdf.gz">Download</a> (gzipped PDF, 198KB)</p> |
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| | <p><a href="papers/dp2000-19.pdf">Download</a> (PDF, 360 KB)</p> |
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| | <hr> |
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| |
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| | workflow, |
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| | process modelling, |
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| | Petri nets</p> |
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| | <p><a href="papers/dp2000-20.pdf.gz">Download</a> (gzipped PDF, 199KB)</p> |
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| | <p><a href="papers/dp2000-20.pdf">Download</a> (PDF, 199 KB)</p> |
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