Expert interaction

Don t rely solely on statistical experts Interaction with subject matter specialists meikes professional insight invaluable. 

LJsttr Interface All expert systems have some kind of user interface which provides the user with a means of interacting with the system. 

In the first stages of the development of an Action plan all control options are considered. In the case of lakes, this process is aided by a PC-based expert system , PACGAP, which looks at the physical and chemical characteristics of the lake to determine the most likely option for control. Once further, more detailed information has been collected on the lake s nutrient inputs and other controlling factors, amore complex interactive model can be used (Phytoplankton Response To Environmental CHange, PROTECH-2) to define the efficacy of proposed control options more accurately. This model is able to predict the development of phytoplankton species populations under different nutrient and stratification regimes. 

The chapters presented by different experts in the field have been structured to develop an intuition for the basic principles by discussing the kinematics of shock compression, first from an extremely fundamental level. These principles include the basic concepts of x-t diagrams, shock-wave interactions, and the continuity equations, which allow the synthesis of material-property data from the measurement of the kinematic properties of shock compression. A good understanding of these principles is prerequisite... 

I have described Lifshin as a specialist in characterisation . This is almost a contradiction in terms, because the techniques that are sheltered under the characterisation umbrella are so numerous, varied and sophisticated that nobody can be truly expert in them all, even if his entire working time is devoted to the pursuit of characterisation. The problem is more serious for other materials scientists whose primary interest lies elsewhere. As Lifshin has expressed it in the preface to an encyclopedia of materials characterisation (Cahn and Lifshin 1993), scientists and engineers have enough difficulty in keeping up with advances in their own fields without having to be materials characterisation experts. However, it is essential to have enough basic understanding of currently used analytical methods to be able to interact effectively with such experts (my italics). ... 

The uncertainties in human error rates may be within the stated uncertainty bounds, but such is not demonstrated from sparse experiments. Both the qualitative description of the human interaction logic and the quantitative assessment of those actions rely on the virtually untested judgment of experts. 

Finally, a number of industry cngiiiceriiig experts and industi-y engineering organizations voiced concern that the electric grid may become less reliable after restructuring. The operation and maintenance of the North American electric grid depends on the coordinated interaction of more than a hundred control... 

The system works interactively with the user to select the best material for the specified application, educating the novice and informing the expert. Users can access definitions of materials, their advantages and disadvantages, compare graphs of flexural modulus vs. temperature, review data sheets and explore materials selection examples. The system is also hyper-linked to complete material supplier information and online help. 

A variety of data sources are available to inform interactive programs, including prospective data sets, retrospective databases, expert opinion, and unpub-lished/published literature. Time horizon, that is, the length of time into the future considered in the analysis over which costs and outcomes are projected, is very important here [26]. For example, if a clinical trial or the published literature only report short-term results for a chronic condition, the outcomes may come into question. This is where decision-analytic models may come... 

C. Masclaux, N. Hugouvieux-Cotte-Pattat and D. Expert, Mol. Plant-Microbe Interact., (1996) in press. 

Sauvage, C., and Expert, D. 1994. Differential regulation by iron of Erwinia chrysanthemi pectate lyases pathogenicity of iron transport regulatory (cbr) mutants. Mol. Plant-Microbe Interact. 7 71-77... 

The typical structure of an expert system is shown in Fig. 43.1. Three basic components are present in all expert systems the knowledge base, the inference engine and the interaction module (user interface). The knowledge base is the heart of the expert system. It contains the necessary expert knowledge and experience to act as a decision support. Only if this is correct and complete enough the expert system can produce meaningful and useful conclusions and advice. The inference... 

Many experts now consider voriconazole as the initial drug of choice for invasive aspergillosis in patients without significant contraindications (e.g., drug interactions or preexisting liver dysfunction) to azole therapy. 

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