scholarly journals Assessment of technogenic load of Nizhny Tagil city pond and environmental risk management based on multifractal dynamics

2021 ◽  
Vol 21 (1) ◽  
pp. 4-11
Author(s):  
Vadim V. Kul`nev ◽  
◽  
Andrey N. Nasonov ◽  
Il`ya V. Tsvetkov ◽  
Lidiya A. Mezhova ◽  
...  
Keyword(s):  
Risk Management ◽  
Waste Water Treatment ◽  
System Stability ◽  
Metabolic Potential ◽  
Protection Measures ◽  
New Approach ◽  
Water Object ◽  
Environmental System ◽  
Object Based ◽  
Multifractal Dynamics

Algoremediation which is a method of natural and waste water treatment due to the metabolic potential of chlorococcal microalgae is based on the principle of system stability. The method of pollution degree estimation of anthropogenic loaded water object based on the application of fractal calculation is shown. Factor analysis has been used to determine the parameters of the environmental system of Nizhny Tagil city pond which are the basis for a new approach to evaluating the efficiency of environmental protection measures through geoecological risk management.

scholarly journals Clusters for Medical Tourism as a new Approach for Risk Management in Cross-border Healthcare

2017 ◽  
Vol 27 (suppl_3) ◽  
Author(s):  
L Georgieva ◽  
R Dimitrova ◽  
K Lazarova ◽  
R Gerl ◽  
M Georgiev
Keyword(s):  
Risk Management ◽  
Medical Tourism ◽  
New Approach ◽  
Cross Border

Fuzzy Rules for Risk Assessment and Contingency Estimation within COCOMO Software Project Planning Model

2014 ◽  
pp. 88-111 ◽  
Author(s):  
Ekananta Manalif ◽  
Luiz Fernando Capretz ◽  
Danny Ho
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Project Planning ◽  
Project Managers ◽  
Research Data ◽  
Software Project ◽  
Planning Model ◽  
Effort Estimation ◽  
New Approach ◽  
Project Risks

Software development can be considered to be the most uncertain project when compared to other projects due to uncertainty in the customer requirements, the complexity of the process, and the intangible nature of the product. In order to increase the chance of success in managing a software project, the project manager(s) must invest more time and effort in the project planning phase, which involves such primary and integrated activities as effort estimation and risk management, because the accuracy of the effort estimation is highly dependent on the size and number of project risks in a particular software project. However, as is common practice, these two activities are often disconnected from each other and project managers have come to consider such steps to be unreliable due to their lack of accuracy. This chapter introduces the Fuzzy-ExCOM Model, which is used for software project planning and is based on fuzzy technique. It has the capability to not only integrate the effort estimation and risk assessment activities but also to provide information about the estimated effort, the project risks, and the effort contingency allowance necessary to accommodate the identified risk. A validation of this model using the project’s research data shows that this new approach is capable of improving the existing COCOMO estimation performance.

Fuzzy Rules for Risk Assessment and Contingency Estimation Within COCOMO Software Project Planning Model

2018 ◽  
pp. 771-797
Author(s):  
Ekananta Manalif ◽  
Luiz Fernando Capretz ◽  
Danny Ho
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Project Planning ◽  
Project Managers ◽  
Research Data ◽  
Software Project ◽  
Planning Model ◽  
Effort Estimation ◽  
New Approach ◽  
Project Risks

Software development can be considered to be the most uncertain project when compared to other projects due to uncertainty in the customer requirements, the complexity of the process, and the intangible nature of the product. In order to increase the chance of success in managing a software project, the project manager(s) must invest more time and effort in the project planning phase, which involves such primary and integrated activities as effort estimation and risk management, because the accuracy of the effort estimation is highly dependent on the size and number of project risks in a particular software project. However, as is common practice, these two activities are often disconnected from each other and project managers have come to consider such steps to be unreliable due to their lack of accuracy. This chapter introduces the Fuzzy-ExCOM Model, which is used for software project planning and is based on fuzzy technique. It has the capability to not only integrate the effort estimation and risk assessment activities but also to provide information about the estimated effort, the project risks, and the effort contingency allowance necessary to accommodate the identified risk. A validation of this model using the project's research data shows that this new approach is capable of improving the existing COCOMO estimation performance.

scholarly journals Deriving customized terrain classes for avalanche risk management in mechanized skiing operations from operational terrain assessments

2018 ◽  
Author(s):  
Reto Sterchi ◽  
Pascal Haegeli
Keyword(s):  
Risk Management ◽  
Management Practices ◽  
Decision Aids ◽  
Decision Makers ◽  
Terrain Classification ◽  
Self Organizing Maps ◽  
New Approach ◽  
The Past ◽  
Avalanche Risk Management ◽  
Avalanche Risk

Abstract. An in-depth understanding of the nature of the available terrain and its exposure to avalanche hazard is crucial for making informed risk management decisions when travelling in the backcountry. While the Avalanche Terrain Exposure Scale (ATES) is broadly used for providing recreationists with terrain information, this type of terrain classification has so far only seen limited adoption within the professional ski guiding community. We hypothesize that it is the generic nature and small number of terrain classes of ATES and its precursor systems that prevent them from offering professional decision makers meaningful assistance. Working with two mechanized skiing operations in British Columbia, Canada, we present a new approach for deriving terrain classifications from daily terrain assessment records. We used a combination of self-organizing maps and hierarchical clustering to identify groups of ski runs that have been assessed similarly in the past and organized them into operation-specific terrain hierarchies. We then examined the nature of the emerging terrain hierarchies using comprehensive run characterizations from experienced guides. Our approach produces high-resolution terrain hierarchies that offer a more nuanced and meaningful perspective on the available skiing terrain and provide new opportunities for examining professional avalanche risk management practices and developing meaningful decision aids.

AN OBJECT-BASED APPROACH TO MANAGING DOMAIN SPECIFIC THESAURI: SEMIAUTOMATIC THESAURUS CONSTRUCTION AND QUERY-BASED BROWSING

2002 ◽  
Vol 12 (04) ◽  
pp. 363-389 ◽  
Author(s):  
JAE HUN CHOI ◽  
JAE DONG YANG ◽  
DONG GILL LEE
Keyword(s):  
Object Oriented ◽  
Domain Expert ◽  
Considerable Part ◽  
New Approach ◽  
Domain Experts ◽  
Domain Specific ◽  
Object Based ◽  
Boolean Queries

In this paper, we propose a new approach for managing domain specific thesauri, where object-oriented paradigm is applied to thesaurus construction and query-based browsing. The approach provides an object-oriented mechanism to assist domain experts in constructing thesauri; it determines a considerable part of relationship degrees between terms by inheritance and supplies the domain expert with information available from other parts of the thesaurus being constructed or already constructed. In addition to that, it enables domain experts to incrementally construct the thesaurus, since the automatically determined relationship degrees can be refined whenever a more sophisticated thesaurus is needed. It may minimize domain experts' burden caused by the exhaustive specification of individual relationship. This approach also provides a query-based browsing facility, which enables users to find desired thesaurus terms without tedious browsing in the thesaurus. A browsing query can be formulated with terms rather ambiguous, yet capable of deriving the desired terms. This browsing query is useful especially when users want precise results. In other words, it is useful when they want to use only thesaurus terms carefully selected in reformulating Boolean queries. To demonstrate the feasibility of our approach, we fully implemented an object-based thesaurus system, which supports the semiautomatic thesaurus construction and the query-based browsing facility.

A New Approach in Object-Based Knowledge Representation: The AROM System

2001 ◽  
pp. 113-118 ◽  
Author(s):  
Michel Page ◽  
Jéräme Gensel ◽  
Cécile Capponi ◽  
Christophe Bruley ◽  
Philippe Genoud ◽  
...  
Keyword(s):  
Knowledge Representation ◽  
New Approach ◽  
Object Based

Turning capital project uncertainty into positive certainty by better defining manageable risk

2011 ◽  
Vol 51 (1) ◽  
pp. 423 ◽  
Author(s):  
Robert Gray
Keyword(s):  
Risk Management ◽  
Oil And Gas ◽  
Project Managers ◽  
Project Investment ◽  
New Approach ◽  
Investment Projects ◽  
Project Outcomes ◽  
Management Application ◽  
Management Roles ◽  
Complex Project

We are all stakeholders in the development of better practices to address the challenges presented by the opportunities and responsibilities that exist in our industry. Navigating the path between uncertainty and positive project outcomes can hopefully help to generate informed decisions as well as a thorough consideration of all the relevant risks. Many risk management roles have, however, tended to develop into compliance-style functions. This paper tackles the inconsistency of risk management application via a new approach, encompassing three elements: taking a new look at some fundamental concepts; making subsequent adaptations to some familiar tools; and applying these ideas to oil and gas investment projects. At the conclusion of this paper, project managers, sponsors and boards should have a new appreciation for how the industry might further improve its performance in tackling uncertainty on complex project investment decisions.

scholarly journals A new approach for satisfactory pensions with no guarantees

2019 ◽  
Vol 10 (1) ◽  
pp. 3-21
Author(s):  
M. Carmen Boado-Penas ◽  
Julia Eisenberg ◽  
Axel Helmert ◽  
Paul Krühner
Keyword(s):  
Risk Management ◽  
Interest Rates ◽  
Asset Management ◽  
Expected Return ◽  
New Approach ◽  
Low Interest Rates ◽  
Key Variables ◽  
Pension Benefits ◽  
Pension Payments ◽  
Over Time

AbstractThe increase in longevity, the ultra-low interest rates and the guarantees associated to pension benefits have put significant strain on the pension industry. Consequently, insurers need to be in a financially sound position while offering satisfactory benefits to participants. In this paper, we propose a pension design that goes beyond the idea of annuity pools and unit-linked insurance products. The purpose is to replace traditional guarantees with low volatility, mainly achieved by collective smoothing algorithms and an adequate asset management. With the aim of offering security to the insured, we discuss the optimisation of some key variables of the proposed pension product to target both a satisfactory level of the initial pension and stable pension payments over time. By combining such well-known products as unit-linked and annuities, we show that it is possible to design a pension product with both high-expected return and low risk for the policyholder. However, differently than in the classical unit-linked framework, we do not allow the individuals to choose the underlying funds. Instead, the funds are under the surveillance of an insurance company’s professional risk management, which induces better informed decisions.

Sign in / Sign up

Export Citation Format

Share Document