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Selected AbstractsSemantic knowledge facilities for a web-based recipe database system supporting personalizationCONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, Issue 7 2008Liping Wang Abstract The recent explosive proliferation of interesting and useful data over the Web such as various recipes, while providing people with readily available information, brings out a challenging issue on how to manage such non-conventional data effectively. To respond to the challenge, we have been developing a Web-based recipe database system called Dish_Master to manage recipes in a novel way, which not only covers the static recipe attributes but also elucidates the dynamic cooking behaviors. In this paper, we present several semantic knowledge facilities devised in Dish_Master, including a set of semantic modeling and knowledge constructs to effectively represent recipe data, rules and constraints, and user profile aspects. With such a rich set of semantic knowledge facilities, Dish_Master lays down a solid foundation of providing users with personalized services such as adaptation and recommendation. Users can benefit from the system's real-time consultation and automatic summarization of cuisine knowledge. The usefulness and elegance of Dish_Master are demonstrated through an experimental prototype system. Copyright © 2007 John Wiley & Sons, Ltd. [source] INDUSTRIAL DYNAMICS AND THE NEOCLASSICAL GROWTH MODELECONOMIC INQUIRY, Issue 4 2009WILLIAM F. BLANKENAU This paper studies industry-level dynamics and demonstrates the ability of a modified neoclassical growth model to capture a range of empirical facts. The paper begins by using U.S. data to document skilled and unskilled labor trends within industry sector classifications as well as industry sector output trends. Using Current Population Survey data from 1968 to 2004, it is shown that the ratio of skilled workers to unskilled workers employed has risen in all industries. The absolute increase in this ratio was larger in the more skilled industries, while the growth rate was larger in the less skilled industries. Furthermore, using national income account data, it is shown that relatively high-skilled industries have accounted for an increasing share of output over time. A version of the neoclassical growth model is then constructed to match these observations. One important feature of this model is a structure that introduces new goods into the economy at each moment of time. The model is able to capture a rich set of labor market movements between sectors and between skill levels as well as changes in the relative output shares across industries, yet preserves many nice features of the neoclassical growth model.(JEL E13, J20, 030) [source] The genetics of anorexia nervosa collaborative study: Methods and sample descriptionINTERNATIONAL JOURNAL OF EATING DISORDERS, Issue 4 2008Walter H. Kaye MD Abstract Objective: Supported by National Institute of Mental Health (NIMH), this 12-site international collaboration seeks to identify genetic variants that affect risk for anorexia nervosa (AN). Method: Four hundred families will be ascertained with two or more individuals affected with AN. The assessment battery produces a rich set of phenotypes comprising eating disorder diagnoses and psychological and personality features known to be associated with vulnerability to eating disorders. Results: We report attributes of the first 200 families, comprising 200 probands and 232 affected relatives. Conclusion: These results provide context for the genotyping of the first 200 families by the Center for Inherited Disease Research. We will analyze our first 200 families for linkage, complete recruitment of roughly 400 families, and then perform final linkage analyses on the complete cohort. DNA, genotypes, and phenotypes will form a national eating disorder repository maintained by NIMH and available to qualified investigators. © 2008 by Wiley Periodicals, Inc. Int J Eat Disord 2008 [source] Does Opinion Shopping Impair Auditor Independence and Audit Quality?JOURNAL OF ACCOUNTING RESEARCH, Issue 3 2006TONG LU ABSTRACT This study investigates how companies' threats to dismiss auditors and their engagement in opinion shopping influence auditor independence and audit quality, which in turn affect misstatements in financial statements. It also examines how outsiders' reactions to auditor switching influence opinion shopping. The results indicate that neither the predecessor auditor's nor the successor auditor's independence is compromised by dismissal threats and opinion shopping. Further, the successor auditor's audit quality exceeds the predecessor auditor's audit quality. In addition, auditor switching decreases potential understatements and increases potential overstatements in financial statements, and the capital market's and the successor auditor's reactions to auditor switching reduce the benefits of opinion shopping to companies. Additionally, the study sheds some light on the potential effects of both the Sarbanes-Oxley's restriction on non-audit services and mandatory auditor rotation or retention. The paper also derives a rich set of empirical implications. [source] Managerial Compensation and Capital StructureJOURNAL OF ECONOMICS & MANAGEMENT STRATEGY, Issue 4 2000Elazar Berkovitch We investigate the interaction between financial structure and managerial compensation and show that risky debt affects both the probability of managerial replacement and the manager's wage if he is retained by the firm. Our model yields a rich set of predictions, including the following: (i) The market values of equity and debt decrease if the manager is replaced; moreover, the expected cash flow affirms that retain their managers exceeds that affirms that replace their managers, (ii) Managers affirms with risky debt outstanding are promised lower severance payments (golden parachutes) than managers affirms that do not have risky debt. (Hi) Controlling for firm's size, the leverage, managerial compensation, and cash flow of firms that retain their managers are positively correlated, (iv) Controlling for the firm's size, the probability of managerial turnover and firm value are negatively correlated, (v) Managerial pay-performance sensitivity is positively correlated with leverage, expected compensation, and expected cash flows. [source] Inter-industry Wage Differences and Individual Heterogeneity,OXFORD BULLETIN OF ECONOMICS & STATISTICS, Issue 5 2004Alan Carruth Abstract Two well-established findings are apparent in the analyses of individual wage determination: cross-section wage equations can account for less than half of the variance in earnings and there are large and persistent inter-industry wage differentials. We explore these two empirical regularities using longitudinal data from the British Household Panel Survey (BHPS). We show that around 90% of the variation in earnings can be explained by observed and unobserved individual characteristics. However, small , but statistically significant , industry wage premia do remain, and there is also a role for a rich set of job and workplace controls. [source] Exponential Growth Bias and Household FinanceTHE JOURNAL OF FINANCE, Issue 6 2009VICTOR STANGO ABSTRACT Exponential growth bias is the pervasive tendency to linearize exponential functions when assessing them intuitively. We show that exponential growth bias can explain two stylized facts in household finance: the tendency to underestimate an interest rate given other loan terms, and the tendency to underestimate a future value given other investment terms. Bias matters empirically: More-biased households borrow more, save less, favor shorter maturities, and use and benefit more from financial advice, conditional on a rich set of household characteristics. There is little evidence that our measure of exponential growth bias merely proxies for broader financial sophistication. [source] Costly contracting in a long-term relationshipTHE RAND JOURNAL OF ECONOMICS, Issue 2 2008Pierpaolo Battigalli We examine a model of contracting where parties interact repeatedly and can contract at any point in time, but writing formal contracts is costly. A contract can describe the external environment and the parties' behavior in a more or less detailed way, and the cost of writing a contract is proportional to the amount of detail. We consider both formal (externally enforced) and informal (self-enforcing) contracts. The presence of writing costs has important implications both for the optimal structure of formal contracts, particularly the tradeoff between contingent and spot contracting, and for the interaction between formal and informal contracting. Our model sheds light on these implications and generates a rich set of predictions about the determinants of the optimal mode of contracting. [source] The FRIENDS platform,A software platform for advanced services and applicationsBELL LABS TECHNICAL JOURNAL, Issue 3 2000Hendrik B. Meeuwissen New high-speed networks provide new opportunities for service providers to offer advanced voice, data, and multimedia services. This paper describes an extendible framework for the efficient creation and deployment of services. The framework integrates the needs of service providers, service developers, and end users within a single coherent architecture. In this architecture, services are composed of distributed software components. The framework provides the infrastructure for component interaction and encourages reuse of service logic from a rich set of basic components. This paper describes details of both the infrastructure and the components that implement the reusable service logic. The application of the service framework is illustrated by a case study of a multi-party service for collaborative work in project teams. The integration of the service framework and the Lucent Softswitch is a promising direction for future research. [source] Pharmacokinetic-pharmacodynamic modelling in the early development phase of anti-psychotics: a comparison of the effects of clozapine, S 16924 and S 18327 in the EEG model in ratsBRITISH JOURNAL OF PHARMACOLOGY, Issue 1 2001T J Parker The use of pharmacokinetic/pharmacodynamic (PK/PD) analysis in early compound development was investigated in the rat for two developmental anti-psychotic compounds with clozapine as a positive control. Three plasma samples were collected from each of eight animals according to a pre-defined sampling matrix allowing a total of 12 time points for PK analysis. Quantitative electroencephalography (QEEG), particularly the theta and beta frequencies, was used as a measurement of pharmacological effect. PK/KD modelling of the sparse PK data available relative to a rich set of PD data was achieved using a population approach in NONMEM (IV). Individual PK parameter estimates were incorporated into a PK/PD model. Qualitative EEG changes in rat and human were similar for clozapine, but different for the two developmental compounds, suggesting that changes in these PD parameters may not be specifically related to the anti-psychotic activity. Although no definitive data are available concerning the signal specificity of EEG frequency bands with respect to dopaminergic or serotonergic receptor activity, qualitative and quantitative differences seen in EEG parameters are likely to result from the multiple receptor occupancy for these compounds. The results confirm the value of population PK/PD modelling in conjunction with sparse sampling to enable determination of concentration effect relationships in the pre-clinical development programme of CNS-active drugs. British Journal of Pharmacology (2001) 132, 151,158; doi:10.1038/sj.bjp.0703791 [source] Evanescent Mentation: An Amelioative Conceptual Foundation for Research and Theory on Message ProductionCOMMUNICATION THEORY, Issue 2 2000John 0. Current theorizing about message encoding can be seen to reflect a characterization of the phenomenon that is overly static, coherent, and uniplanar, including some variations on the uniplanar theme,too verbal, too propositional, and too mentalistic. This paper examines each of these points of received understanding and suggests the need for approaches that are better able to capture the fluid, disjointed, and multiplanar character of messages and message production. The dominant approach to message production, the goals-plans-action framework, is then examined in light of this alternative characterization, with the result being the emergence of a rich set of new conceptual issues and questions. Finally, the potential of a particular theory of message production, second-generation action assembly theory (Greene, 1997), for addressing these issues is examined. [source] |