Philip J. Sallis

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—The paper describes ongoing research in data mining techniques investigated for modelling seasonal climate effects on grapevine phenology that determines the ratio of grape berry composition that in turn determines the fineness of wine vintage in addition to winemaker experience and talent. A brief introduction to the literature in this problem domain is(More)
The motivation for modelling the effects of climate change on viticulture and wine quality using both qualitative and quantitative data within an integrated analytical framework is described. The major constraints and solutions evident when taking such an approach are outlined. WEBSOM is a novel self-organising map (SOM) method for extracting relevant(More)
This relates to early stage research that aims to build an integrated toolbox of instruments that can be used for environmental modeling tasks. The application area described is grape growing and wine production. A comparative study including data gathered in both New Zealand and Chile is described. Using both passive and sensor technology data is gathered(More)
The effect of frost on the successful growth and quality of crops is well understood by growers as leading potentially to total harvest failure. Studying the frost phenomenon, especially in order to predict its occurrence has been the focus of numerous research projects and investigations. Frost prone areas are of particular concern. Grape growing for wine(More)
Geo-informatics is a field of science that combines geodetic and spatial information processing methods with computing hardware and software technologies. Research being conducted by the authors extends this blend of science and technology by utilising contemporary computational techniques for data analysis and some sensor and telemetry technologies(More)
The Department of Information Science is one of six departments that make up the Division of Commerce at the University of Otago. The department offers courses of study leading to a major in Information Science within the BCom, BA and BSc degrees. In addition to undergraduate teaching, the department is also strongly involved in postgraduate research(More)
The need for better techniques, tools and practices to analyse ecological and economic systems in an integrated framework has never been so great. Self-organising map 1 (SOM) methods are utilised for this purpose with two examples using regional and global data (ecological and economic) compiled by state and international institutions i.e. Waikato Regional(More)
Physical damage to property and crops caused by unanticipated wind gusts is a well understood phenomenon. Predicting its occurrence continues to be a challenge for meteorologists and climatol-ogists. Various approaches to gust occurrence model building have been proposed. The very nature of the event is problematic because of its brief duration following a(More)