Predicting the future state of a hybrid system is made exceptionally difficult by uncertainty in the current operating mode of the plant and the possibility of a plant modal transition during the interval over which a prediction is to be made. Unjustified approximations and errors in the system model typically create large errors in the prediction and, for some applications even worse, yield an...

This paper explores the possibility of basing economic appraisal on the measurement of experienced utility (utility as hedonic experience) rather than decision utility (utility as a representation of preference). Because of underestimation of the extent of hedonic adaptation to changed circumstances and because of the ‘‘focusing illusion’’ (exaggerating the importance of the current focus of on...

Performance appraisals have been frequently investigated for inaccuracies attributable to raters. In addition to rater contributions, problems in measurement can arise from properties of instrumentation. If administered items do not parallel the full range of employee performance, a restriction of range can occur. Here employees are rated similarly (no distinction made) not because of rater err...

Based on traditional archival appraisal theories and existing appraisal/selection policies in libraries, archives, museums, social science and science data centers, this paper presents a generic appraisal/selection framework for digital curation and discusses how it can be implemented. The framework includes three selection methods: statistical sampling, risk analysis and appraisal. Details abo...

This thesis describes a machine learning system for understanding appraisal in design documents. In linguistics, analysis of attitudes expressed in text is known as appraisal, which is the writer's subjective attitude (i.e., the opinion, sentiment or attitude expressed) toward the semantic meaning. Semantic orientation is the aspect of appraisal that expresses the positive or negative stance of...

This paper explores the features of the top 30 appraisal words in students’ essays from the perspective of Appraisal Theory. The distributions of the Appraisal words are not even in the writings. Attitude system comes first followed by Graduation system and Engagement system. With the analysis of the features and distributions of the top 30 appraisal words, it reveals some problems related to u...

The primary goals of the appraisal are to document problems in question design and identify possible revisions. The review criteria are standard and so, the appraisal offers the promise of increased consistency in questionnaire review and revision. We have found that the household appraisal is a quick and inexpensive source of feedback when more extensive cognitive laboratory testing activities...

BACKGROUND The aim of appraisal is to provide an opportunity for individuals to reflect on their work to facilitate learning and development. Appraisal for GPs has been a contractual requirement since 2004 in Scotland, and is seen as an integral part of revalidation. AIM To investigate the outcomes of GP appraisal in terms of whether it has prompted change in medical practice, education and l...