G Leonardi
Biographic Data
| ID | 3718937 |
|---|---|
| NAME | G Leonardi |
| GIVEN NAMES | G |
| FAMILY NAME | Leonardi |
| SIGNATURE | LEONARDI G |
| AFFILIATIONS | International Institute for Applied Systems Analysis, A-2361 Laxenburg, Austria |
| VERIFIED | No |
| TOTAL WORKS | 9 |
| TOTAL CITATIONS | 44 |
| WORKS AS AUTHOR | 9 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1978 |
| LATEST PUBLICATION YEAR | 2011 |
| H-INDEX | 4 |
Anthropogenic deposits from the Bronze Age site of Fondo Paviani (Verona, Italy)
Conceptual Foundations of Spatial Choice Models
As the location choice of an individual determines his or her feasible consumption set, it can be modelled as a two-stage procedure. First, the individual finds an optimal consumption bundle for each one of the feasible consumption sets that correspond to the locations considered. Second, he or she compares the resulting location-specific optimal utility levels and chooses a location for which the optimal utility level is a maximum. It is imagine…
Asymptotic Approximations of the Assignment Model with Stochastic Heterogeneity in the Matching Utilities
A large-scale linear assignment problem is considered under the assumption that the coefficients of the objective function are imperfectly known but have a probability distribution. Asymptotic approximations are derived by using the statistical theory of extremes. It is shown how the resulting approximate problem has an easily computable form, provides a closed-form solution which has the structure of a logit model, and is embedded by a mathemati…
Equity, Efficiency, and Accessibility in Urban and Regional Health-Care Systems
This paper explores four different criteria of health-care resource allocation at the urban and regional level. The criteria are linked by a common spatial-interaction model. This model is based on the hypothesis that the number of hospital patients generated in a residential zone i is proportional to the relative morbidity of i, and to the availability of resources in treatment zone j, but is in inverse proportion to the accessibility costs of g…
A Unifying Framework for Public Facility Location Problems-Part 2
This second part of the paper describes mathematical models for static, single-service, facility location problems and their possible extensions and improvements. The first part that appeared in the last issue (pages 1001-1028) gave a nontechnical description of the proposed general framework for analyzing location problems
A Unifying Framework for Public Facility Location Problems-Part 1
This paper, a condensed report of the present state of the work in the Public Facility Location Task (formerly the Normative Location Modeling Task) at IIASA, has three main aims: first, to build a general framework for location problems; second, to use this framework to unify existing location models; and, third, to use the framework to develop new, more general, and more meaningful location models. Suggestions are also given on how to introduce…
Heuristic Algorithms for the Normative Location of Retail Activities Systems
The Optimal Management of Natural Recreational Resources
A mathematical model of the dynamic behaviour of natural recreational resources in the presence of 'disturbance' elements is presented, with a park taken as the natural resource and its users as the element of 'disturbance'. A thorough analysis of the park/users system makes it possible to establish its response to external stimuli as well as the conditions under which it admits equilibrium states. Several models for the optimal management of the…
Optimum Facility Location by Accessibility Maximizing
A mathematical-programming approach to facility location is developed. The objective function assumed for optimization is an accessibility measure. It is shown that, by suitably defining this measure, one can get solutions closely related to, if not identical with, the ones given in many current formulations of the location problem. This is believed to be an interesting result in itself, as it shows how the programming approach can unify differen…
Equity, Efficiency, and Accessibility in Urban and Regional Health-Care Systems
This paper explores four different criteria of health-care resource allocation at the urban and regional level. The criteria are linked by a common spatial-interaction model. This model is based on the hypothesis that the number of hospital patients generated in a residential zone i is proportional to the relative morbidity of i, and to the availability of resources in treatment zone j, but is in inverse proportion to the accessibility costs of g…
Optimum Facility Location by Accessibility Maximizing
A mathematical-programming approach to facility location is developed. The objective function assumed for optimization is an accessibility measure. It is shown that, by suitably defining this measure, one can get solutions closely related to, if not identical with, the ones given in many current formulations of the location problem. This is believed to be an interesting result in itself, as it shows how the programming approach can unify differen…
A Unifying Framework for Public Facility Location Problems-Part 1
This paper, a condensed report of the present state of the work in the Public Facility Location Task (formerly the Normative Location Modeling Task) at IIASA, has three main aims: first, to build a general framework for location problems; second, to use this framework to unify existing location models; and, third, to use the framework to develop new, more general, and more meaningful location models. Suggestions are also given on how to introduce…
A Unifying Framework for Public Facility Location Problems-Part 2
This second part of the paper describes mathematical models for static, single-service, facility location problems and their possible extensions and improvements. The first part that appeared in the last issue (pages 1001-1028) gave a nontechnical description of the proposed general framework for analyzing location problems
Asymptotic Approximations of the Assignment Model with Stochastic Heterogeneity in the Matching Utilities
A large-scale linear assignment problem is considered under the assumption that the coefficients of the objective function are imperfectly known but have a probability distribution. Asymptotic approximations are derived by using the statistical theory of extremes. It is shown how the resulting approximate problem has an easily computable form, provides a closed-form solution which has the structure of a logit model, and is embedded by a mathemati…
The Optimal Management of Natural Recreational Resources
A mathematical model of the dynamic behaviour of natural recreational resources in the presence of 'disturbance' elements is presented, with a park taken as the natural resource and its users as the element of 'disturbance'. A thorough analysis of the park/users system makes it possible to establish its response to external stimuli as well as the conditions under which it admits equilibrium states. Several models for the optimal management of the…
Optimum Facility Location by Accessibility Maximizing
A mathematical-programming approach to facility location is developed. The objective function assumed for optimization is an accessibility measure. It is shown that, by suitably defining this measure, one can get solutions closely related to, if not identical with, the ones given in many current formulations of the location problem. This is believed to be an interesting result in itself, as it shows how the programming approach can unify differen…
Heuristic Algorithms for the Normative Location of Retail Activities Systems
The Optimal Management of Natural Recreational Resources
A mathematical model of the dynamic behaviour of natural recreational resources in the presence of 'disturbance' elements is presented, with a park taken as the natural resource and its users as the element of 'disturbance'. A thorough analysis of the park/users system makes it possible to establish its response to external stimuli as well as the conditions under which it admits equilibrium states. Several models for the optimal management of the…
A Unifying Framework for Public Facility Location Problems-Part 2
This second part of the paper describes mathematical models for static, single-service, facility location problems and their possible extensions and improvements. The first part that appeared in the last issue (pages 1001-1028) gave a nontechnical description of the proposed general framework for analyzing location problems
A Unifying Framework for Public Facility Location Problems-Part 1
This paper, a condensed report of the present state of the work in the Public Facility Location Task (formerly the Normative Location Modeling Task) at IIASA, has three main aims: first, to build a general framework for location problems; second, to use this framework to unify existing location models; and, third, to use the framework to develop new, more general, and more meaningful location models. Suggestions are also given on how to introduce…
Equity, Efficiency, and Accessibility in Urban and Regional Health-Care Systems
This paper explores four different criteria of health-care resource allocation at the urban and regional level. The criteria are linked by a common spatial-interaction model. This model is based on the hypothesis that the number of hospital patients generated in a residential zone i is proportional to the relative morbidity of i, and to the availability of resources in treatment zone j, but is in inverse proportion to the accessibility costs of g…
Asymptotic Approximations of the Assignment Model with Stochastic Heterogeneity in the Matching Utilities
A large-scale linear assignment problem is considered under the assumption that the coefficients of the objective function are imperfectly known but have a probability distribution. Asymptotic approximations are derived by using the statistical theory of extremes. It is shown how the resulting approximate problem has an easily computable form, provides a closed-form solution which has the structure of a logit model, and is embedded by a mathemati…
Conceptual Foundations of Spatial Choice Models
As the location choice of an individual determines his or her feasible consumption set, it can be modelled as a two-stage procedure. First, the individual finds an optimal consumption bundle for each one of the feasible consumption sets that correspond to the locations considered. Second, he or she compares the resulting location-specific optimal utility levels and chooses a location for which the optimal utility level is a maximum. It is imagine…
Anthropogenic deposits from the Bronze Age site of Fondo Paviani (Verona, Italy)
Computer Science (7 works) · Engineering (5 works) · Facility Location and Emergency Management (4 works) · Mathematics (4 works) · Operations research (4 works) · Business (3 works) · Facility location problem (3 works) · Geography (3 works) · Mathematical optimization (3 works) · Artificial Intelligence (2 works)