نتایج جستجو برای: uncertainty management

تعداد نتایج: 960978  

1999

This article explores the relationship between the social construction of risk, uncertainty and evaluation in the field of development cooperation. It explores the assumption that risk and uncertainty are unusually high in development cooperation. Perceptions of risk and uncertainty are cultural constructs. Several authors have identified perceptions of uncertainty as one of the most important ...

Journal: :REPORTER OF THE PRIAZOVSKYI STATE TECHNICAL UNIVERSITY Section: Economic sciences 2019

Journal: :int. journal of mining & geo-engineering 2014
abbas eftekhari majid taromi mahdi saeidi

slope stability analysis is a geotechnical engineering problem characterized by many sources ofuncertainty. in slope stability computations, some of these sources are encountered, such as geologicaldetails missed in the exploration program, estimation of soil properties that are difficult to quantifyand many other relevant factors. therefore, accurate reproduction of the spatial variability in ...

2015
Evgeny A. Kuzmin

It is believed that a spontaneous nature of the uncertainty and its conceptual ambiguity reject a conceptual opportunity of management. Such a disposition, that has become a prevailing stereotype for the perceived uncertainty, leads us away from a productive solution to a number of pressing challenges to maintain economic safety and sustainable development. In opposition to this, in the paper, ...

Journal: :Ecological applications : a publication of the Ecological Society of America 2006
R Gregory D Ohlson J Arvai

The concept of adaptive management has, for many ecologists, become a foundation of effective environmental management for initiatives characterized by high levels of ecological uncertainty. Yet problems associated with its application are legendary, and many of the initiatives promoted as examples of adaptive management appear to lack essential characteristics of the approach. In this paper we...

2016
Derek Walker Beverley Lloyd-Walker Ole Jonny Klakegg

Background: Cross-discipline team collaboration between the project ownership team, design team and project delivery team is central to effective management of risk, uncertainty and ambiguity. A recently-developed framework that was developed to provide a visualisation tool to enable various project procurement and delivery forms has been adapted to answer the research question How can uncertai...

2016
Söhnke M. Bartram Gregory Brown René M. Stulz

From 1963 through 2015, idiosyncratic risk (IR) is high when market risk (MR) is high. We show that the positive relation between IR and MR is highly stable through time and is robust across exchanges, firm size, liquidity, and market-to-book groupings. Though stock liquidity affects the strength of the relation, the relation is strong for the most liquid stocks. The relation has roots in funda...

2016
Fei Li Yue Zhang Meishan Zhang Dong-Hong Ji

Extracting adverse drug events receives much research attention in the biomedical community. Previous work adopts pipeline models, firstly recognizing drug/disease entity mentions and then identifying adverse drug events from drug/disease pairs. In this paper, we investigate joint models for simultaneously extracting drugs, diseases and adverse drug events. Compared with pipeline models, joint ...

2005
Umberto Straccia

It is generally accepted that knowledge based systems would be smarter if they can manage uncertainty. In this paper we extend Description Logics, well-known logics for managing structured knowledge, towards the management of uncertainty. We allow (i) to express that a sentence is not just true or false, but certain to some degree, which is taken from a certainty lattice; and (ii) combine the l...

Journal: :Environmental Modelling and Software 2010
Baihua Fu Lachlan T. H. Newham C. E. Ramos-Scharrón

This paper reviews available models for estimating surface erosion and sediment delivery to streams from unsealed roads. It summarises current progress and identifies directions for ongoing research and model development. The paper provides a framework for assessing road erosion and sediment delivery models and it includes an overview of road erosion and sediment delivery processes and how they...

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