Terminological knowledge

Sattler, U. Terminological Knowledge Representation Systems in a Process Engineering Application. PhD thesis, RWTH Aachen University (1998)... 

However, the iadustry s popular terminology is the energy consumption expressed ia terms of kilowatt hours per ton of (Pq[) oi of NaOH An estimate of this value requires a knowledge of cell voltage, current efficiency, and the efficiency of the rectifier used to convert a-c power to d-c. The energy consumption for producing a ton of is... 

Students use of diagrams is frequently hmited by their lack of chemical knowledge, their lack of ability to attend to the detail of the diagram and their lack of ability to use chemical terminology accurately, evidenced by the incorrect use of chemical phrases and misuse of everyday language. There are three important facts that need to be imderstood in order to gain a better imderstanding of the sub-micro level ... 

As onr knowledge of the pathways of effects for EDCs has evolved, the number of chemicals classified as EDCs has increased, and a more extensive list of these chemicals is detailed later in this chapter. The terminology used to describe chemicals that affect the endocrine system has also changed over time. Some now refer to EDCs as endocrine-active or endocrine-modulating, rather than endocrine-disrupting chemicals, as they do not necessarily always have deleterious effects. 

When trade-offs exist, no single compound will stand out uniquely as the optimum drug for the market, ranked hrst on all measures of performance. Rather, a set of compounds will be considered that, on current knowledge, span the optimal solution to the problem. These compounds are those for which there is no other compound that offers equivalent performance across all criteria and superior performance in at least one. In multicriteria decision analysis (MCDA) terminology, they are known as Pareto-optimal solutions. This concept is illustrated by the two-criteria schematic in Figure 11.3. 

Besides the flat set of terms we also use and extract thesaurus relations such as synonymy , broader term and narrower term . By introducing these relationships we create a thesaurus from our terminology. The semantic knowledge encoded in the thesaurus is used for expansion of queries within the KSP and also for enriching the UltraLink. 

To identify entities in a portion of text and type them, we use the knowledge sources (terminology, thesaurus, and ontology) introduced in Section 31.3.2. The three levels are used by the following procedures ... 

Knowledge Map for psoriasis It shows a graph of concepts linked to psoriasis. The Knowledge Map is generated on the fly and uses the terminology that we maintain (Fig. 31.5D). 

Viscosity is a measure of a fluid s resistance to flow. The knowledge of viscosity is needed for proper design of required temperatures for storage, pumping, or injection of hazardous fluids. Define the viscosity terminologies, and provide technical data of typical liquid pollutants for illustration. 

Understanding how radiation detection occurs requires a working knowledge of basic terminology. 

An important feature of expert systems is the accessibility to the user of the knowledge base and the reasoning process. Both the terminology used by the program and its interpretation of data have chemical significance. Each conclusion reached by the program can be traced by the user to the original data. When alternative explanations for an observation are possible, the choice is visible to the... 

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