Johanna-Pascale Roy
Biographic Data
| ID | 5886978 |
|---|---|
| NAME | Johanna-Pascale Roy |
| GIVEN NAMES | Johanna-Pascale |
| FAMILY NAME | Roy |
| SIGNATURE | ROY J |
| AFFILIATIONS | Commonwealth Scientific and Industrial Research Organisation |
| ORCID | 0000-0002-0827-7122 |
| VERIFIED | Yes |
| TOTAL WORKS | 13 |
| TOTAL CITATIONS | 8 |
| AUTHOR COUNT | 13 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1980 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 1 |
Using Mahalanobis Distances to Investigate Second Dialect Acquisition: A Study on Quebec French
Second dialect acquisition (SDA) can be defined as the process through which geographically mobile individuals adapt to new dialect features of their first language. Two common methodological approaches in SDA studies could lead to underestimating the phonetic changes that mobile speakers may experience: only large phonetic differences between dialects are considered, and external sources are used to infer what should have been the speakers’ orig…
Syllable duration changes during babbling: A longitudinal study of French infant productions
At the babbling stage, the syllable does not have the temporal characteristics of adult syllables because of the infant's limited oro-motor skills. This research aims to further our knowledge of syllable duration and temporal variability and their evolution with age as an indicator of the development of articulatory skills. The possible impact of syllable position, as well as that of type of intrasyllabic associations and intersyllabic articulato…
A descriptive account of the Quebec French diphthong fête
Diphthongization has a long history in Quebec French. In this variety, lengthened vowels have the potential to be diphthongized. However, one vowel stands out, as it is always long and seems particularly inclined to be diphthongal: the fête vowel. While it has been much studied over the years, some uncertainties remain in the literature, especially whether length or quality primarily distinguishes it and which phonetic transcription appropriately…
Anticipation labiale et perception visuelle
The main aim of this article is to describe the visual perception process of anticipatory rounding gestures in [iC(CCCC)y] sequences by considering the characteristics that contribute to their production (articulatory configurations, temporal data, and kinematic events). Productions of two French speakers were analyzed to obtain the data needed to interpret the results of a perception test composed of truncated visual sequences using the gating p…
"Comment on "The Development of a New Gravity-Opportunity Model for Trip Distribution
The integration of the gravity and intervening-opportunities model in the recent paper by Gonçalves and Ulysséa-Neto provokes interesting questions on the role of the number of intervening opportunities on either decreasing or increasing travel. In this note I discuss such issues, as well as making comparisons with recent innovations in spatial interaction theory
An Alternative Information Theory Approach for Modelling Spatial Interaction
In the use of information theory for the development of forecasting models, two alternative approaches can be used, based either on Shannon entropy or on Kullback information gain. In this paper, a new approach is presented, which combines the usually superior statistical inference powers of the Kullback procedure with the advantages of the availability of calibrated 'elasticity' parameters in the Shannon approach. Situations are discussed where …
Optimal Replacement and Maintenance of Urban Infrastructure
The theory of optimal control is used to derive the optimal policy for maintenance and replacement of the capital invested into deteriorating infrastructure networks or facilities. Depending on economic conditions, the optimal policy consists either in maintaining the infrastructure indefinitely at its initial level, or in letting it run down and postponing its replacement as long as possible
A Comment on Procedures for Embedding Production-Constrained Spatial Interaction Models
Entropy Models with Entropy Constraints on Aggregated Events
Most spatial models deal with a number of objects, such as segments of demand, as well as supply choices including houses, jobs, transport modes or routes, etc. A choice of or by any of these objects represents a probabilistic event (decision step). The problem is to determine the joint probability density for the collection of events. In this paper, the joint probability function is estimated using an extended entropy model, constrained by addit…
Some Supply and Demand Considerations in Urban Spatial Interaction Models
Although attempts have been made recently to include supply considerations in urban spatial interaction models, these efforts have not been comprehensive. In this paper, demand-type models are first examined. Then it is demonstrated how spatial consumption patterns can be determined when potential supply exceeds actual demand or vice versa. In addition, supply and demand imbalances are treated simultaneously. Last, a model for handling steady sta…
Entropy and Economic Modelling
Entropy-maximizing models have been focused predominantly at the microscopic level of social and economic activities, their use being advocated by urban geographers, mathematicians, and microeconomists. By maintaining a sharp distinction between the behavioural and statistical aspects of entropy, various submodels may be formulated to generate the most probable pattern of individual choice behaviour. It may nevertheless be possible to regard each…
Minimizing Information Loss in Simple Aggregation
A criterion is presented to indicate a strategy for additively combining corresponding discrete rows and columns of a square array to form an array of reduced size such that the loss of information thereby incurred is minimized. The objective function is expressed in terms of an information loss criterion between the original array and an array of the same size acting as a surrogate for the reduced array. In contrast to the usual application of i…
External Zones in the Gravity Model-Some Further Developments
In urban transport studies, the boundaries of the outermost zones are usually set to coincide with the expected periphery of development at the end of the study period. In practice, there often exist considerable traffic flows to and from these zones and settlements outside the urban area. In this note, suggestions are made to include such flows within a consistent entropy maximizing framework. The model accounts for the total worker supply and t…
Minimizing Information Loss in Simple Aggregation
A criterion is presented to indicate a strategy for additively combining corresponding discrete rows and columns of a square array to form an array of reduced size such that the loss of information thereby incurred is minimized. The objective function is expressed in terms of an information loss criterion between the original array and an array of the same size acting as a surrogate for the reduced array. In contrast to the usual application of i…
Using Mahalanobis Distances to Investigate Second Dialect Acquisition: A Study on Quebec French
Second dialect acquisition (SDA) can be defined as the process through which geographically mobile individuals adapt to new dialect features of their first language. Two common methodological approaches in SDA studies could lead to underestimating the phonetic changes that mobile speakers may experience: only large phonetic differences between dialects are considered, and external sources are used to infer what should have been the speakers’ orig…
A descriptive account of the Quebec French diphthong fête
Diphthongization has a long history in Quebec French. In this variety, lengthened vowels have the potential to be diphthongized. However, one vowel stands out, as it is always long and seems particularly inclined to be diphthongal: the fête vowel. While it has been much studied over the years, some uncertainties remain in the literature, especially whether length or quality primarily distinguishes it and which phonetic transcription appropriately…
"Comment on "The Development of a New Gravity-Opportunity Model for Trip Distribution
The integration of the gravity and intervening-opportunities model in the recent paper by Gonçalves and Ulysséa-Neto provokes interesting questions on the role of the number of intervening opportunities on either decreasing or increasing travel. In this note I discuss such issues, as well as making comparisons with recent innovations in spatial interaction theory
An Alternative Information Theory Approach for Modelling Spatial Interaction
In the use of information theory for the development of forecasting models, two alternative approaches can be used, based either on Shannon entropy or on Kullback information gain. In this paper, a new approach is presented, which combines the usually superior statistical inference powers of the Kullback procedure with the advantages of the availability of calibrated 'elasticity' parameters in the Shannon approach. Situations are discussed where …
Entropy Models with Entropy Constraints on Aggregated Events
Most spatial models deal with a number of objects, such as segments of demand, as well as supply choices including houses, jobs, transport modes or routes, etc. A choice of or by any of these objects represents a probabilistic event (decision step). The problem is to determine the joint probability density for the collection of events. In this paper, the joint probability function is estimated using an extended entropy model, constrained by addit…
External Zones in the Gravity Model-Some Further Developments
In urban transport studies, the boundaries of the outermost zones are usually set to coincide with the expected periphery of development at the end of the study period. In practice, there often exist considerable traffic flows to and from these zones and settlements outside the urban area. In this note, suggestions are made to include such flows within a consistent entropy maximizing framework. The model accounts for the total worker supply and t…
External Zones in the Gravity Model-Some Further Developments
In urban transport studies, the boundaries of the outermost zones are usually set to coincide with the expected periphery of development at the end of the study period. In practice, there often exist considerable traffic flows to and from these zones and settlements outside the urban area. In this note, suggestions are made to include such flows within a consistent entropy maximizing framework. The model accounts for the total worker supply and t…
Entropy and Economic Modelling
Entropy-maximizing models have been focused predominantly at the microscopic level of social and economic activities, their use being advocated by urban geographers, mathematicians, and microeconomists. By maintaining a sharp distinction between the behavioural and statistical aspects of entropy, various submodels may be formulated to generate the most probable pattern of individual choice behaviour. It may nevertheless be possible to regard each…
Minimizing Information Loss in Simple Aggregation
A criterion is presented to indicate a strategy for additively combining corresponding discrete rows and columns of a square array to form an array of reduced size such that the loss of information thereby incurred is minimized. The objective function is expressed in terms of an information loss criterion between the original array and an array of the same size acting as a surrogate for the reduced array. In contrast to the usual application of i…
Some Supply and Demand Considerations in Urban Spatial Interaction Models
Although attempts have been made recently to include supply considerations in urban spatial interaction models, these efforts have not been comprehensive. In this paper, demand-type models are first examined. Then it is demonstrated how spatial consumption patterns can be determined when potential supply exceeds actual demand or vice versa. In addition, supply and demand imbalances are treated simultaneously. Last, a model for handling steady sta…
A Comment on Procedures for Embedding Production-Constrained Spatial Interaction Models
Entropy Models with Entropy Constraints on Aggregated Events
Most spatial models deal with a number of objects, such as segments of demand, as well as supply choices including houses, jobs, transport modes or routes, etc. A choice of or by any of these objects represents a probabilistic event (decision step). The problem is to determine the joint probability density for the collection of events. In this paper, the joint probability function is estimated using an extended entropy model, constrained by addit…
An Alternative Information Theory Approach for Modelling Spatial Interaction
In the use of information theory for the development of forecasting models, two alternative approaches can be used, based either on Shannon entropy or on Kullback information gain. In this paper, a new approach is presented, which combines the usually superior statistical inference powers of the Kullback procedure with the advantages of the availability of calibrated 'elasticity' parameters in the Shannon approach. Situations are discussed where …
Optimal Replacement and Maintenance of Urban Infrastructure
The theory of optimal control is used to derive the optimal policy for maintenance and replacement of the capital invested into deteriorating infrastructure networks or facilities. Depending on economic conditions, the optimal policy consists either in maintaining the infrastructure indefinitely at its initial level, or in letting it run down and postponing its replacement as long as possible
"Comment on "The Development of a New Gravity-Opportunity Model for Trip Distribution
The integration of the gravity and intervening-opportunities model in the recent paper by Gonçalves and Ulysséa-Neto provokes interesting questions on the role of the number of intervening opportunities on either decreasing or increasing travel. In this note I discuss such issues, as well as making comparisons with recent innovations in spatial interaction theory
Anticipation labiale et perception visuelle
The main aim of this article is to describe the visual perception process of anticipatory rounding gestures in [iC(CCCC)y] sequences by considering the characteristics that contribute to their production (articulatory configurations, temporal data, and kinematic events). Productions of two French speakers were analyzed to obtain the data needed to interpret the results of a perception test composed of truncated visual sequences using the gating p…
Syllable duration changes during babbling: A longitudinal study of French infant productions
At the babbling stage, the syllable does not have the temporal characteristics of adult syllables because of the infant's limited oro-motor skills. This research aims to further our knowledge of syllable duration and temporal variability and their evolution with age as an indicator of the development of articulatory skills. The possible impact of syllable position, as well as that of type of intrasyllabic associations and intersyllabic articulato…
A descriptive account of the Quebec French diphthong fête
Diphthongization has a long history in Quebec French. In this variety, lengthened vowels have the potential to be diphthongized. However, one vowel stands out, as it is always long and seems particularly inclined to be diphthongal: the fête vowel. While it has been much studied over the years, some uncertainties remain in the literature, especially whether length or quality primarily distinguishes it and which phonetic transcription appropriately…
Using Mahalanobis Distances to Investigate Second Dialect Acquisition: A Study on Quebec French
Second dialect acquisition (SDA) can be defined as the process through which geographically mobile individuals adapt to new dialect features of their first language. Two common methodological approaches in SDA studies could lead to underestimating the phonetic changes that mobile speakers may experience: only large phonetic differences between dialects are considered, and external sources are used to infer what should have been the speakers’ orig…
Computer Science (10 works) · Mathematics (8 works) · Artificial Intelligence (6 works) · Transportation Planning and Optimization (6 works) · Economics (5 works) · Phonetics and Phonology Research (4 works) · Vowel (4 works) · Geography (3 works) · Linguistic Variation and Morphology (3 works) · Linguistics (3 works)