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Relevant bibliographies by topics / Model Transferability

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Academic literature on the topic 'Model Transferability'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Journal articles on the topic "Model Transferability"

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Koppelman, Frank S., and Eric I. Pas. "Multidimensional choice model transferability." Transportation Research Part B: Methodological 20, no. 4 (August 1986): 321–30. http://dx.doi.org/10.1016/0191-2615(86)90046-9.

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MacDougall, A. H., B. A. Wheler, and G. E. Flowers. "Assessment of glacier melt-model transferability: comparison of temperature-index and energy-balance models." Cryosphere Discussions 4, no. 4 (October 20, 2010): 2143–67. http://dx.doi.org/10.5194/tcd-4-2143-2010.

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Abstract. Transferability of glacier melt models is necessary for reliable projections of melt over large glacierized regions and over long time-scales. The transferability of such models has been examined for individual model types, but inter-comparison has been hindered by the diversity of validation statistics used to quantify transferability. We apply four common types of melt models – the classical degree-day model, an enhanced temperature-index model, a simplified energy-balance model and a full energy-balance model – to two glaciers in the same small mountain range. The transferability of each model is examined in space and over two melt seasons. We find that the full energy balance model is consistently the most transferable, with deviations in estimated glacier-wide surface ablation of ≤ 35% when the model is forced with parameters derived from the other glacier and/or melt season. The other three models have deviations in glacier-wide surface ablation of ≥ 100% under the same forcings. In addition, we find that there is no simple relationship between model complexity and model transferability.

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Abdelwahab, Walid M. "Transferability of intercity disaggregate mode choice models in Canada." Canadian Journal of Civil Engineering 18, no. 1 (February 1, 1991): 20–26. http://dx.doi.org/10.1139/l91-003.

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In many transportation studies, the time span of data collection, model development, and analysis is often too long to be responsive to the needs of policy analysts and decision makers. This problem is often exacerbated in situations with severely constrained analysis resources. Therefore, it is often useful to transfer a model from one area to another. Model transfer is defined as the application of a model developed in one area to describe the corresponding behavior in another area. This paper examines the transferability of a class of models used in intercity travel demand analysis. Specifically, disaggregate mode choice models of the multinomial logit type are developed for two regions in Canada, and some established measures of transferability are applied to assess the potential of calibrating these models in one region and applying them in the other. Comparison of mode choice models estimated on data sets from the two regions yielded inconclusive results regarding model transferability. In general, transferred models were found to be 18–23% less accurate than local models in predicting modal shares. Adjusting models' parameters to reflect observed modal shares in the application context improved the predictive ability of the models by about 10%. Key words: transferability, mode choice, disaggregate, travel behavior, multinomial logit, intercity.

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Flavia, Anyiko, and Charisma Choudhury. "Temporal Transferability of Vehicle Ownership Models in the Developing World: Case Study of Dhaka, Bangladesh." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 3 (March 2019): 722–32. http://dx.doi.org/10.1177/0361198119836760.

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Temporal transferability of model parameters is a critical issue, especially in the context of developing countries where data and resources for transport model development are extremely limited. This study investigates the temporal transferability of vehicle ownership models with special emphasis on exploring the effect of model structure on temporal transferability. The performance of potential updating methods for making the models more transferable are also compared. The household survey data collected from Dhaka, Bangladesh in 2005 and 2010 have been used in this regard. Different forms of random utility and count regression models of car, motorcycle, and bicycle ownership have been developed using income and household size, and number of workers, children, and licensed drivers as explanatory variables. The temporal transferability of each model between the two time periods has been compared rigorously using statistical tests. Results indicate that the multinomial logit model has better temporal transferability than the count regression models. In relation to model updating, the combined transfer estimation method for model updating is found to perform better than the Bayesian updating. The findings can provide useful guidance during application of a pre-existing model in the context of a developing country.

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Bowman, John L., and Mark Bradley. "Testing Spatial Transferability of Activity-Based Travel Forecasting Models." Transportation Research Record: Journal of the Transportation Research Board 2669, no. 1 (January 2017): 62–71. http://dx.doi.org/10.3141/2669-07.

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This paper reports results from the second phase of a two-phase FHWA-sponsored project to test and demonstrate empirically the transferability of activity-based model (ABM) systems between regions. With data obtained from the 2008–2009 National Household Travel Survey, researchers estimated ABMs simultaneously for 13 metropolitan regions in seven U.S. states. Statistical tests were used to test transferability, including tests of regional differences in the model coefficients, likelihood ratio tests of model equivalence, and transferability indexes, which measure the degree of model differences. In addition, differences in prediction sensitivity between locally estimated and transferred models were tested. The project overall found evidence in favor of transferability. It also found that parameters associated with land use, logsum accessibilities, and travel time and cost caused the biggest problems with transferability. Finally, the study found that transferring within a state or between regions with similar urban density improves transferability. This paper presents the data, models, and testing methods used in the project and includes details of all tests and results related to the improved transferability associated with model transfers from regions within the same state or with similar urban density. The conclusion of the study was that agencies considering transfer of an ABM from another region would do well to find a region within the same state or with similar urban density that has a model that is well supported by a large household travel survey data set.

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Kumarage, Amal S., and S. C. Wirasinghe. "Transferability of aggregate intercity total demand models." Canadian Journal of Civil Engineering 22, no. 2 (April 1, 1995): 283–91. http://dx.doi.org/10.1139/l95-037.

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Over the last 15 years, extensive research has been done on the transferability of travel demand models. However, much of this work has been concentrated towards investigating the transferability of disaggregate mode choice models. The transferability of an aggregate total demand model for intercity travel is examined. Model transfer is possible only when a number of preconditions for transferability are satisfied. One of the principal obstacles to the successful transfer of intercity demand models is the inability to overcome the contextual differences between calibration and application. Here, the components of the intercity total demand model are separated into exogenous and intrinsic (contextual) factors. The latter is thereafter classified as being either transferable or nontransferable. It is shown that transferable attributes can accompany a model during transfer. Nontransferable attributes, on the other hand, will free the model of city or city-pair specific contextual characteristics which should not be transferred to other city pairs. The issues involved in transferring an aggregate model are also investigated. Aggregate data on interdistrict travel by public transportation in Sri Lanka have been used to successfully calibrate a total demand model with a number of transferable and nontransferable attributes that represent both temporal and spatial contextual factors. It is shown that the forecasting ability of this model is far superior to a counterpart model without the intrinsic variables. Key words: travel demand, aggregate, forecasting, transferability, intercity, Sri Lanka.

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Ko, Namuk, Byeongki Jeong, Wonchul Seo, and Janghyeok Yoon. "A transferability evaluation model for intellectual property." Computers & Industrial Engineering 131 (May 2019): 344–55. http://dx.doi.org/10.1016/j.cie.2019.04.011.

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Gao, Hongkai, Tianding Han, Youcun Liu, and Qiudong Zhao. "Use of auxiliary data of topography, snow and ice to improve model performance in a glacier-dominated catchment in Central Asia." Hydrology Research 48, no. 5 (December 2, 2016): 1418–37. http://dx.doi.org/10.2166/nh.2016.242.

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Whether coupling auxiliary information (except for conventional rainfall–runoff and temperature data) into hydrological models can improve model performance and transferability is still an open question. In this study, we chose a glacier catchment to test the effect of auxiliary information, i.e., distributed forcing input, topography, snow-ice accumulation and melting on model calibration–validation and transferability. First, we applied the point observed precipitation and temperature as forcing data, to test the model performance in calibration–validation and transferability. Second, we took spatial distribution of forcing data into account, and did the same test. Third, the aspect was involved to do an identical experiment. Finally, the snow–ice simulation was used as part of the objective function in calibration, and to conduct the same experiment. Through stepwisely accounting these three pieces of auxiliary information, we found that a model without involving forcing data distribution, local relief, or snow–ice data can also perform well in calibration, but adding forcing data distribution and topography can dramatically increase model validation and transferability. It is also remarkable that including the snow–ice simulation into objective function did not improve model performance and transferability in this study. This may be because the well-gauged hydro-meteorological data are sufficient to constrain a well-designed hydrological model.

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Kontogianni, Areti, Dimitris Damigos, Michail Skourtos, Christos Tourkolias, Eleanor Denny, Ibon Galarraga, Steffen Kallbekken, and Edin Lakić. "Model Validity and Transferability Informing Behavioral Energy Policies." Energies 14, no. 11 (May 27, 2021): 3122. http://dx.doi.org/10.3390/en14113122.

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A number of microeconomic choice models are currently applied to demonstrate systematic biases in energy consumer behavior. The models highlight the hidden potential of energy savings from policies that target the so-called behavioral anomalies. Nevertheless, whether these patterns are repeatable or not is not clear, because the efforts to determine the transferability or generalizability of these models are practically nonexistent. This paper uses a unique collection of empirical data from five EU countries collected within the CONSEED project to refine and develop further the standard consumer decision model, validate it for policy purposes, and elaborate on its transferability between countries. The pooled samples allow for a more reliable investigation of the relative importance of the factors influencing consumers’ attitudes and beliefs towards energy investment decisions. Based on the statistical tests conducted to evaluate the “transferability” of the pooled models (i.e., the possibility of creating a “universal” model of EE from the pooled model), it can be argued that the models are transferable in specific cases since attitudinal factors and demographic characteristics play a significant role. Although the pooled models are validated, any extrapolation of the above-mentioned findings to specific populations in terms of “space” (i.e., country) and “target” (e.g., sectors and technologies) should be approached with caution from a policy perspective.

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MacDougall, Andrew H., and Gwenn E. Flowers. "Spatial and Temporal Transferability of a Distributed Energy-Balance Glacier Melt Model." Journal of Climate 24, no. 5 (March 1, 2011): 1480–98. http://dx.doi.org/10.1175/2010jcli3821.1.

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Abstract Modeling melt from glaciers is crucial to assessing regional hydrology and eustatic sea level rise. The transferability of such models in space and time has been widely assumed but rarely tested. To investigate melt model transferability, a distributed energy-balance melt model (DEBM) is applied to two small glaciers of opposing aspects that are 10 km apart in the Donjek Range of the St. Elias Mountains, Yukon Territory, Canada. An analysis is conducted in four stages to assess the transferability of the DEBM in space and time: 1) locally derived model parameter values and meteorological forcing variables are used to assess model skill; 2) model parameter values are transferred between glacier sites and between years of study; 3) measured meteorological forcing variables are transferred between glaciers using locally derived parameter values; 4) both model parameter values and measured meteorological forcing variables are transferred from one glacier site to the other, treating the second glacier site as an extension of the first. The model parameters are transferable in time to within a <10% uncertainty in the calculated surface ablation over most or all of a melt season. Transferring model parameters or meteorological forcing variables in space creates large errors in modeled ablation. If select quantities (ice albedo, initial snow depth, and summer snowfall) are retained at their locally measured values, model transferability can be improved to achieve ≤15% uncertainty in the calculated surface ablation.

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Dissertations / Theses on the topic "Model Transferability"

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Skinner, Andrew John. "Transferability within the tight binding bond model." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47665.

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Hunukumbura, J. M. P. B. "Distributed hydrological model transferability across basins with different physio-climatic characteristics." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/126504.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第14933号
工博第3160号
新制||工||1474(附属図書館)
27371
UT51-2009-M847
京都大学大学院工学研究科都市環境工学専攻
(主査)教授椎葉充晴, 教授寶馨, 准教授立川康人
学位規則第4条第1項該当

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Silva, Karla Cristina Rodrigues. "Assessing the transferability of crash prediction models for two lane highways in Brazil." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/18/18144/tde-10112017-215500/.

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The present study focused on evaluating some crash prediction models for two lane highways on Brazilian conditions. Also, the transferability of models was considered, specifically by means of a comparison between Brazil, HSM and Florida. The analysis of two lane highways crash prediction models was promising when the road characteristics were well known and there was not much difference from base conditions. This conclusion was attained regarding the comparison of results for all segments, non-curved segments and curved segments, confirming that a transferred model can be used with caution. In addition, two novel models for Brazilian two-lane highways segments were estimated. The model developed showed better results for non-curved segments in the calibration/validation sample. Thus, for a general analysis purpose of non-curved segments this model is recommended. Finally, there are many factors that could not be measured by these models and reflects road safety various condition. Even so, the study of crash predict models in Brazilian context could provide a better start point in safety road analysis.
O foco desta pesquisa foi avaliar a aplicação de alguns modelos de previsão de acidentes em rodovias de pista simples de três estados brasileiros. Ainda, a transferabilidade destes modelos foi abordada, especificamente por meio de uma comparação entre características do Brasil, Florida e aquelas recomendadas pelo Highway Safety Manual. O uso dos distintos modelos se mostrou promissor para situações nas quais as características da via se mantiveram semelhantes às condições para as quais os modelos foram desenvolvidos. A avaliação foi empreendida para todos os segmentos homogêneos, separados posteriormente segundo a existência de curvas horizontais. Adicionalmente, dois novos modelos foram equacionados para a amostra brasileira. O modelo de previsão de acidentes desenvolvido apresentou melhores medidas de desempenho para segmentos sem curvas horizontais, sendo recomendável para previsão de acidentes em análises preliminares. Por fim, foi constatado que outros fatores não contemplados pelos modelos podem ter impactado as condições de segurança dos locais estudados. Ainda assim, essa pesquisa representa no contexto do Brasil um ponto de partida em análises relacionadas à segurança de rodovias de pista simples.

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Rosenberger, Amanda Elizabeth. "Multi-scale patterns of habitat use by Roanoke logperch (Percina rex) in Virginia rivers: a comparison among populations and life stages." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/26015.

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The Roanoke logperch (Percina rex) is a federally endangered large darter that occurs only within the Roanoke and Chowan drainages of Virginia. This dissertation examines multi-scale habitat use patterns by logperch in three river systems in Virginia, including comparisons among rivers and life stages. The first study in this dissertation compares microhabitat use patterns of logperch among the Roanoke, Pigg, and Nottoway rivers. My objectives are to: 1) compare available microhabitat and microhabitat use by logperch among these rivers; and 2) examine the transfer of habitat models among rivers. Habitat availability in the three rivers indicates that the Nottoway River is least impacted by human activity, while the Pigg River is most impacted. The Roanoke and Pigg rivers are found within the same region of Virginia and share many habitat characteristics. Logperch consistently use silt free, loosely embedded gravel in all rivers and can occupy a variety of depths and velocities to accommodate substrate requirements. Microhabitat models transfer better between the similar Pigg and Roanoke rivers. The second study in this dissertation compares micro- and meso-habitat use patterns by Roanoke logperch in the Roanoke and Nottoway rivers. My objectives are to: 1) compare micro- and meso-habitat use patterns of logperch in the Roanoke and Nottoway rivers; and 2) examine transfer of habitat models at both scales. An increase in scale from micro- to meso- habitat did not improve model transfer. Habitat selectivity and transfer was strongest at the microhabitat scale. Logperch appear to be microhabitat substrate specialists and mesohabitat generalists. The final study in this dissertation examines ontogenetic patterns of habitat use by Roanoke logperch in the Roanoke and Nottoway rivers. My goals are to: 1) examine habitat use by three age classes of logperch and 2) compare ontogenetic patterns of habitat use between the Roanoke and Nottoway rivers. In the Roanoke River, adult and subadult logperch primarily used run and riffle habitat, often over gravel substrate. Subadults were found in lower water velocities and more embedded microhabitats than adults. Young-of-year logperch were found in shallow, stagnant backwaters and secondary channels. In the Nottoway River, both adult and subadult logperch were found over sand and gravel in deep, low velocity pools and runs. Subadults were observed in slightly more silted, lower velocity habitat. Younger age classes of logperch appear to be more vulnerable to sedimentation caused by human activity. Evidence in this dissertation strongly indicates that logperch have strict substrate requirements and the distribution of habitat types and pathways of dispersal will be critical for completion of the logperch life cycle. A watershed-level conservation approach that addresses sediment loading and preserves ecological processes that provide ephemeral, seasonal, and persistent types of habitat required over logperch ontogeny will be most effective for management geared towards the recovery of this endangered species.
Ph. D.

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Venne, Simon. "Can Species Distribution Models Predict Colonizations and Extinctions?" Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38465.

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Aim MaxEnt, a very popular species distribution modelling technique, has been used extensively to relate species’ geographic distributions to environmental variables and to predict changes in species’ distributions in response to environmental change. Here, we test its predictive ability through time (rather than through space, as is commonly done) by modeling colonizations and extinctions. Location Continental U.S. and southern Canada. Time period 1979-2009 Major taxa studied Twenty-one species of passerine birds. Methods We used MaxEnt to relate species’ geographic distributions to the variation in environmental conditions across North America. We then modelled site-specific colonizations and extinctions between 1979 and 2009 as functions of MaxEnt-estimated previous habitat suitability and inter- annual change in habitat suitability and neighborhood occupancy. We evaluated whether the effects were in the expected direction, we partitioned model’s explained deviance, and we compared colonization and extinction model’s accuracy to MaxEnt’s AUC. Results IV Colonization and extinction probabilities both varied as functions of previous habitat suitability, change in habitat suitability, and neighborhood occupancy, in the expected direction. Change in habitat suitability explained very little deviance compared to other predictors. Neighborhood occupancy accounted for more explained deviance in colonization models than in extinction models. MaxEnt AUC correlates with extinction models’ predictive ability, but not with that of colonization models. Main conclusions MaxEnt appears to sometime capture a real effect of the environment on species’ distributions since a statistical effect of habitat suitability is detected through both time and space. However, change in habitat suitability (which is much smaller through time than through space) is a poor predictor of change in occupancy. Over short time scales, proximity of sites occupied by conspecifics predicts changes in occupancy just as well as MaxEnt. The ability of MaxEnt models to predict spatial variation in occupancy (as measured by AUC) gives little indication of transferability through time. Thus, the predictive value of species distribution models may be overestimated when evaluated through space only. Future prediction of species’ responses to climate change should make a distinction between colonization and extinction, recognizing that the two processes are not equally well predicted by SDMs.

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Curós, i. Vilà Maria Pilar. "El model japonès de gestió dels recursos humans i las seva implantació a les filials japoneses de Catalunya." Doctoral thesis, Universitat de Girona, 2002. http://hdl.handle.net/10803/7950.

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L'objectiu d'aquesta tesi doctoral consisteix en determinar si el model de gestió dels recursos humans de les empreses matrius japoneses es transferible a les filials japoneses de Catalunya.
Per tot això després d'un estudi teòric sobre la literatura existent del model de gestió dels recursos humans japonès i la internacionalització dels recursos humans, s'ha realitzat un treball empíric mitjançant una enquesta a les filials japoneses instal.lades a Catalunya. En el qüestionari s'analitzen diferents àmbits de la gestió dels recursos humans i que constitueixen les 7 hipòtesis del nostre treball de camp basades en el model de recursos humans japonès referides a: 1- Reclutament i selecció, 2- Promoció i Rotació, 3- Lideratge, comunicació i treball en equip, 4- Motivació, clima laboral i cultura empresrial, 5- Formació i desenvolupament, 6- Avaluació de l'acompliment, y 7- Retribució i beneficis socials. Tot això ens ha indicat quina es la tendència del model japonès de recursos humans a les filials catalanes tenint en compte que estem analitzant un contexte cultural diferent a la idiosincrasia dels treballadors japonesos. El treball ens ha permés de proposar dues línies d'investigació, una a determinar en el temps i una altre en l'espai. En el temps amb la nova generació s'està produint un canvi cultural en el qual els joves japonesos intenten importar part dels valors occidentals que es veurà reflectit al llarg de 10-20 anys. I en l'espai l'aplicació de l'estudi a altres països europeus, com Anglaterra, França i Alemanya que són els principals països on els japonesos prefereixen instal.lar-se.
The objective of this doctoral thesis is to consider if the Human Resource Management model of the Japanese head office is transferable to the Japanese subsidiaries settled in Catalonia.
After a theoretical study about the existent literature of the Japanese Human Resource Management model and the internationalization of Human Resources an empirical research has been carried out by means of a survey in the Japanese subsidiaries set up in Catalonia. In this survey different aspects of the Human Resource Management have been analysed and they constitute the seven hypotheses of our research based on the Japanese Human Resources model conerning:
1- Recruitment and Selection, 2- Promotion and Rotation, 3- Leardership, communication and Teamwork, 4- Motivation, labour atmosphere and Management culture, 5- Training and development, 6- Personnel Appraisal and 7- Retribution and Social Benefits. All this has shown us what the tendency of the Japanese Human Resources model in the Catalan subsidiaries is, taking into account that we are analysing a different cultural context to the idiosyncrasy of Japanese workers.

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Baštářová, Tereza. "Přenositelnost skandinávského modelu sociálního státu na základě makroekonomické analýzy." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-193606.

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This thesis deals with question of Scandinavian social model's transferability on Baltic countries and Iceland. The aim of the thesis is to establish whether and to what extent Estonia, Latvia, Lithuania and Iceland are ready to adopt the system. Three main methods are used in the thesis, namely: analysis of macroeconomic indicators and competitiveness indices, synthesis using the magic pentagon and comparison via coefficient of variation. The thesis comprises three main parts. The first one deals with theory and methodology. The second part applies information gained from databases of world organisations and follows their development. The last part then compares these figures.

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Corvo, E. "Exploration of the effectiveness and transferability of an English model of health promotion based on participation in singing groups for older adults (Silver Song Clubs) in Italy." Thesis, Canterbury Christ Church University, 2013. http://create.canterbury.ac.uk/12993/.

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Background There is growing interest in the idea that arts and singing have effects on health, wellbeing and quality of life in older individuals. This study assesses the effectiveness and transferability to Italy of an English model of health promotion which promotes wellbeing and quality of life in older people through participation in singing groups (Silver Song Clubs). The model developed in the South East of England has proved to be successful. A recently completed randomized controlled trial (Coulton, et al. in press) demonstrated a significant improvement in mental health with a reduction in measured anxiety and depression for older people living independently. The current study adopted the same measures. Method A mixed method approach was adopted with research divided into two parts; Part A was focused on exploring the status of older people living in Rome, their interest in music and singing today and in the past and in taking part in a singing experience. It also explored how local politicians and social workers see the status of older people. Part B was focused on setting up and evaluating singing groups and gathering information from participants on their experiences of singing. The primary outcome measure was an Italian version of the York SF-12 which provides scores for physical and mental wellbeing. The Italian version of the EQ-5D-3L questionnaire was also employed. Results Results from Part A revealed a highly fragmented Italian family, with widespread poverty and social isolation and a need for emotional support and leisure activities among older people. In Part B, three singing groups were established in different areas of Rome with weekly sessions over a period of three months. Participants completed the standardized measures of health and wellbeing at baseline (n=62), after the singing experience (n=45) and three months later (n=41). After the singing experience, older people showed a statistically significant decrease in their levels of anxiety and depression, but this was not maintained over the three month follow up period. However, a significant improvement was found from baseline to follow up in reported performance of „usual activities‟. Conclusions Silver Song Clubs provide a health promotion model which was successfully transferred from England to the different cultural setting of Italy. Singing can be widely used because it is grounded in a fundamental human ability to engage with music. The present study had a number of limitations, primarily a lack of a control group and small sample size. However it provides a good foundation for the development of further research on singing and the wellbeing of older people in Italy.

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Cabrera, Delgado Jorge. "Quelle prise en compte des dynamiques urbaines dans la prévision de la demande de transport ?" Phd thesis, Université Lumière - Lyon II, 2013. http://tel.archives-ouvertes.fr/tel-00877044.

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Dans la pratique de la planification urbaine, la prévision de la demande de transport fait en général appel au modèle à quatre étapes (génération, distribution, répartition modale et affectation), malgré des avancées théoriques considérables dans le domaine.Cette persistance s'explique par une facilité relative de mise en œuvre, liée notamment à la forme des données disponibles et susceptibles d'alimenter les modèles. Cependant, la nature statique de l'approche pose des interrogations quant à sa pertinence pour faire des prévisions de moyen-long terme. Cette thèse étudie, la validité de l'hypothèse de stabilité temporelle des trois premières étapes du modèle de prévision. Pour ce faire, en prenant l'agglomération lyonnaise comme terrain d'étude, nous avons codifié des réseaux routiers et de transports en commun à différentes dates (1985, 1995 et 2006). Cette donne, généralement indisponible, combinée aux enquêtes ménages déplacements correspondantes,nous permet de calibrer les trois premières étapes du modèle traditionnel et de tester leur capacité prédictive. Pour les modèles de génération, on note des prévisions acceptables à un horizon de 10 ans. À 20 ans, certaines évolutions dans les styles de vie se sont traduites paru ne baisse du nombre moyen de sorties pour le motif travail, que les modèles traditionnels ne permettent pas de prévoir complètement. Au niveau de la distribution, l'allongement des distances entre lieux de réalisation de certaines activités et le lieu de domicile peut être relativement bien reproduit par des modèles gravitaires avec des paramètres stables dans le temps. Au niveau de la répartition modale, les paramètres ne sont pas stables et les modèles estimés n'auraient pas permis de prévoir le regain de parts de marché des transports en commun observé ces dernières années.

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Rulewski, Stenberg Louis. "High frequency rainfall data disaggregation with a random cascade model : Identifying regional differences in hyetographs in Sweden." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-434661.

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The field of urban hydrology is in need of high temporal resolution data series in order to effectively model and analyse existing and future trends in extreme precipitation. When high resolution data sets are, for any number of reasons, not available for a given location, the technique of disaggregation using a random cascade model can be applied. Previous studies have demonstrated the relevance of random cascades in the context of rainfall data disaggregation with temporal resolutions usually down to 1 hour. In this study, an attempt at disaggregation to a resolution of 1 minute was made. Using newly disaggregated rainfall data for different regions in Sweden, the possibility of clustering rain events into separate regional hyetographs was investigated. The random cascade model was calibrated using existing municipal rainfall data with a temporal resolution of 1 minute, in order to disaggregate continuous 15 minutes data series provided by the Swedish Meteorological and Hydrological Institute (SMHI). The disaggregation process was then performed in multiple stochastic realisations, in order to correct the uncertainties inherent to the random cascade model. The disaggregation results were assessed by comparing them with calibration data: two main rainfall parameters, EV and ED, were analysed by determining their behaviours and distribution. The possibility of transfering calibration parameters from one station to another was also assessed in a similar manner, again by studying EV & ED for different scenarios. Finally, hyetographs were clustered, compared and contrasted, in order to ascertain previously theorized differences between regions. This research showed the feasibility of applying a random cascade model to very high temporal resolutions in Sweden, while replicating rainfall characteristics from the calibration data quite well. The analysis of the spatial transferability of calibration parameters yielded inconclusive results, as rainfall characteristics were preserved in some cases but failed in others. Lastly, distinct regional differences in hyetographs were noted, but no clear conclusions could be drawn owing to the delimitations of this study.
Inom småskalig hydrologisk modellering finns det idag ett behov av dataserier med hög tidsupplösning för att effektivt kunna modellera och analysera både aktuella och kommande trender hos extrema regnhändelser. När högupplösta dataserier är otillgängliga vid en önskad mätplats kan disaggregering med hjälp av en slumpmässig kaskadmodell tillämpas. Tidigare forskning har visat att kaskadmodeller är användbara för disaggregering av regndata med en tidsupplösning av 1 timme. I denna studie disaggregerades dataserier med syftet att uppnå en tidsupplösningav av 1 minut. För att kunna analysera eventuella skillnader mellan regioner klustrades även hyetografer med de framtagna dataserierna. Den slumpmässiga kaskadmodellen kalibrerades med befintlig kommunal data med en tidsupplösning på 1 minut, för att sedan kunna disaggregera 15 minuters data från SMHIs databaser. Disaggregeringen genomfördes i ett antal olika stokastiska realisationer för att kunna ta hänsyn till, och korrigera, de inneboende osäkerheterna i den slumpmässiga kaskadmodellen. Disaggregeringsresultaten bedömdes genom en jämförelse med kalibreringsdata: två regnegenskaper, regnvaraktighet (ED) och regnvolym (EV), analyserades för att kunna bestämma derasfördelningar och beteenden. Kalibreringsparametrarnas överförbarhet analyserades också med hjälp av ED & EV för olika scenarier. Slutligen klustrades hyetografer för att fastställa potentiella skillnader mellan regioner. Studien påvisade möjligheten att använda en slumpmässig kaskadmodell till höga tidsupplösningar i Sverige. Modellen lyckades återskapa regnegenskaper från kalibreringsdata vid disaggregeringen. Möjligheten att överföra kalibreringsparametrar från en station till en annan visade sig dock inte vara helt övertygande: regnegenskaper återskapades endast i vissa fall, men inte i samtliga. Slutligen konstaterades regionala skillnader i hyetografer, men tydliga slutsatser kunde inte dras på grund av underliggande begränsningar med studien.

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Books on the topic "Model Transferability"

1

Gliebe, John, Mark Bradley, Nazneen Ferdous, Maren Outwater, Haiyun Lin, and Jason Chen. Transferability of Activity-Based Model Parameters. Washington, D.C.: Transportation Research Board, 2014. http://dx.doi.org/10.17226/22384.

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Ben-Akiva, Moshe E. The combined estimator approach to model transferability and updating. Québec: Dép. d'économique, Université Laval, 1987.

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Ben-Akiva, Moshe E. Approaches to model transferability and updating: The combinated transfer estimator. Québec: Département d'économique, Université Laval, 1987.

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Hartung, Ina. The transferability of the American venture capital model into the German market. Oxford: Oxford Brookes University, 2001.

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Lawton, Raymond W. The transferability of the cooperative federalism model used for electric and natural gas utilities to telecommunications reform legislation. [Columbus, Ohio]: National Regulatory Research Institute, 1994.

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Joakim, Palme, United Nations. Economic Commission for Latin America and the Caribbean, and Sweden. Styrelsen för internationell utveckling, eds. Inclusion of the European Nordic model in the debate concerning social protection reform: The long-term development of Nordic welfare systems (1890-2005) and their transferability to Latin America in the twenty-first century. Santiago, Chile: Naciones Unidas, CEPAL, Special Studies Unit, Executive Secretariat Office, 2006.

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Price, Lydia J. Recursive least-squares approach to data transferability: Exposition and numerical results. Fontainebleau: INSEAD, 1992.

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Krishna, Kala. Quantity controls, license transferability, and the level of investment. Cambridge, MA: National Bureau of Economic Research, 2002.

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Krishna, Kala. Quality controls, license transferability and the level of investment. [Washington, D.C.]: International Monetary Fund, IMF Institute, 2001.

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Price, Lydia J. Data transferability: Estimating the response effect of future events based on historical analogy. Fontainbleau: INSEAD, 1992.

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Book chapters on the topic "Model Transferability"

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Dlouhý, I., V. Kozák, and M. Holzmann. "Toughness Scaling Model Applications." In Transferability of Fracture Mechanical Characteristics, 195–212. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0608-8_14.

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Zhang, Chenyi. "Transferability Study on the SUV Model." In Wissenschaftliche Reihe Fahrzeugtechnik Universität Stuttgart, 91–102. Wiesbaden: Springer Fachmedien Wiesbaden, 2021. http://dx.doi.org/10.1007/978-3-658-33439-0_6.

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Lenkey, Gy B., Zs Balogh, and T. Thomázy. "On the Application of the Beremin Model for Predicting the Brittle Fracture Resistance." In Transferability of Fracture Mechanical Characteristics, 123–34. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0608-8_9.

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Henke, Holger, and Ian Boxill. "9. Conclusion: The Asian Model in Crisis and the Transferability of Development Experiences." In The End of the ‘Asian Model’?, 199. Amsterdam: John Benjamins Publishing Company, 2000. http://dx.doi.org/10.1075/aios.2.10hen.

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Cohen-Blaser, Cécile, and Gisela Dachs. "Transferability of the Franco-German Model in the Israeli–Palestinian Conflict." In Frontiers in International Relations, 121–34. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55144-5_9.

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McKay, J., S. Grunwald, X. Shi, and R. F. Long. "Evaluation of the Transferability of a Knowledge-Based Soil-Landscape Model." In Digital Soil Mapping, 165–78. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-8863-5_14.

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Paslavska, Alla. "On the Transferability of the Franco-German Model: The Case of Ukraine and Russia." In Frontiers in International Relations, 91–103. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55144-5_7.

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Riccardo, Rossi, Gastaldi Massimiliano, Gecchele Gregorio, and Meneguzzer Claudio. "Transferability of Fuzzy Models of Gap-Acceptance Behavior." In Advances in Intelligent and Soft Computing, 379–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20505-7_34.

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Wijekoon, Anjana, and Nirmalie Wiratunga. "Evaluating the Transferability of Personalised Exercise Recognition Models." In Proceedings of the 21st EANN (Engineering Applications of Neural Networks) 2020 Conference, 32–44. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48791-1_3.

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Yu, Congrong, Sabine Grunwald, and Xiong Xiong. "Transferability and Scaling of VNIR Prediction Models for Soil Total Carbon in Florida." In Springer Environmental Science and Engineering, 259–73. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0415-5_21.

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Conference papers on the topic "Model Transferability"

1

He, Xuanli, Lingjuan Lyu, Lichao Sun, and Qiongkai Xu. "Model Extraction and Adversarial Transferability, Your BERT is Vulnerable!" In Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies. Stroudsburg, PA, USA: Association for Computational Linguistics, 2021. http://dx.doi.org/10.18653/v1/2021.naacl-main.161.

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Lozano, Marianela Garcia, and Johan Fernquist. "Identifying Deceptive Reviews: Feature Exploration, Model Transferability and Classification Attack." In 2019 European Intelligence and Security Informatics Conference (EISIC). IEEE, 2019. http://dx.doi.org/10.1109/eisic49498.2019.9108852.

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Jin, Xisen, Francesco Barbieri, Brendan Kennedy, Aida Mostafazadeh Davani, Leonardo Neves, and Xiang Ren. "On Transferability of Bias Mitigation Effects in Language Model Fine-Tuning." In Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies. Stroudsburg, PA, USA: Association for Computational Linguistics, 2021. http://dx.doi.org/10.18653/v1/2021.naacl-main.296.

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Wang, Siyue, Xiao Wang, Pin-Yu Chen, Pu Zhao, and Xue Lin. "Characteristic Examples: High-Robustness, Low-Transferability Fingerprinting of Neural Networks." In Thirtieth International Joint Conference on Artificial Intelligence {IJCAI-21}. California: International Joint Conferences on Artificial Intelligence Organization, 2021. http://dx.doi.org/10.24963/ijcai.2021/80.

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This paper proposes Characteristic Examples for effectively fingerprinting deep neural networks, featuring high-robustness to the base model against model pruning as well as low-transferability to unassociated models. This is the first work taking both robustness and transferability into consideration for generating realistic fingerprints, whereas current methods lack practical assumptions and may incur large false positive rates. To achieve better trade-off between robustness and transferability, we propose three kinds of characteristic examples: vanilla C-examples, RC-examples, and LTRC-example, to derive fingerprints from the original base model. To fairly characterize the trade-off between robustness and transferability, we propose Uniqueness Score, a comprehensive metric that measures the difference between robustness and transferability, which also serves as an indicator to the false alarm problem. Extensive experiments demonstrate that the proposed characteristic examples can achieve superior performance when compared with existing fingerprinting methods. In particular, for VGG ImageNet models, using LTRC-examples gives 4X higher uniqueness score than the baseline method and does not incur any false positives.

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Gao, Zhen, Shuyun Yu, Min Wang, Rongjie Yu, and Xuesong Wang. "The Impacts of Data on Spatial Transferability on a Crash Risk Prediction Model." In 18th COTA International Conference of Transportation Professionals. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481523.171.

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Lin, Zhulu, and Mohammad J. Anar. "Parameter Estimation, Transferability Evaluation and Predictive Uncertainty Analysis of a Sugarbeet Model Using PEST." In 2018 Detroit, Michigan July 29 - August 1, 2018. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2018. http://dx.doi.org/10.13031/aim.201800231.

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Chapuliot, S., and S. Marie. "Brittle Fracture Criteria Transferability Evaluation by Testing on Different Specimen Geometries." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61231.

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This paper describes an experimental and numerical study to assess the transposability of brittle fracture criteria from specimens of one type of geometry to another. The overall “master curve” approach, the Beremin model and a proposed model using the concept of critical stress were accordingly analysed. The experimental work supporting the analysis was made on 16MND5 reactor vessel steel. This was in the form of CT25 specimens, taken as the reference type, SENT specimens, ring specimens and CTpor specimens, which are CT specimens with a semi-elliptical surface defect. The analysis itself was made in two stages: the models were first calibrated on the basis of CT25 test results, then they were applied to specimens of other geometries. We then demonstrate that, in all cases, the models correctly replicated the variation of toughness (as measured on a CT25 specimen) with temperature. However, they all failed when applied to SENT and ring specimens, where calculation underestimates the probability of fracture. For CTpor specimens, the results are better, the master curve approach and the critical stress criterion give satisfactory results (but it has not yet been possible to apply the Beremin method). This paper concludes with a detailed analysis of the crack tip stress and strain fields, followed by an attempt to explain the differences between the different types of behaviour observed.

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Gilles, Philippe, Alexandre Brosse, and Philippe Mourgue. "Large Ductile Tearing in Dissimilar Material Welds and Transferability Issues." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57898.

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Dissimilar Metal Welds (DMW) are required in nuclear reactors to join low alloy steel components and stainless piping. The thermal and mechanical mismatch between the dissimilar material characteristics favors the stress concentration in the weld along the austenitic/ferritic interface. Assessing the ductile tearing resistance of DMWs is an issue even for crack initiation. But predicting large crack extensions is even more difficult for several reasons: crack path deviation, J-R curve determination, transferability from specimen to structures. This paper presents an approach to determine the resistance curve of a DMW on the basis of a ductile tearing simulation using a cavity growth model.

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Ruggieri, Claudio. "A Transferability Model for Cleavage Fracture Toughness in Strength Mismatched Welds Using the Weibull Stress Approach." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25170.

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This work describes the development of a toughness scaling methodology incorporating the effects of weld strength mismatch on crack-tip driving forces. The approach adopts a nondimensional Weibull stress, σw, as a the near-tip driving force to correlate cleavage fracture across cracked weld configurations with different mismatch conditions even though the loading parameter (measured by the J-integral) may vary widely due to mismatch and constraint variations. Application of the procedure to predict the failure strain for an overmatch girth weld made of an API X80 pipeline steel demonstrates the effectiveness of the micromechanics approach. Overall, the results lend strong support to use a Weibull stress based procedure in defect assessments of structural welds.

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Bassindale, Chris, Xin Wang, William R. Tyson, and Su Xu. "Examination of the Transferability of CTOA From Small-Scale DWTT to Full-Scale Pipe Geometries Using a Cohesive Zone Model." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21304.

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Abstract In this work, the cohesive zone model (CZM) was used to examine the transferability of the crack tip opening angle (CTOA) from small-scale to full-scale geometries. The pipe steel STPG370 was modeled. A drop-weight tear test (DWTT) model and pipe model were studied using the finite element code ABAQUS 2017x. The cohesive zone model was used to simulate crack propagation in 3D. The CZM parameters were calibrated based on matching the surface CTOA measured from a DWTT finite element model to the surface CTOA measured from the experimental DWTT specimen. The mid-thickness CTOA of the DWTT model was in good agreement with the experimental value determined from E3039 and the University of Tokyo group’s load-displacement data. The CZM parameters were then applied to the pipe model. The internal pressure distribution and decay during the pipe fracture process was modeled using the experimental data and implemented through a user-subroutine (VDLOAD). The mid-thickness CTOA from the DWTT model was similar to the mid-thickness CTOA from the pipe model. The average surface CTOA of the pipe model was in good agreement with the average experimental value. The results give confidence in the transferability of the CTOA between small-scale specimens and full-scale pipe.

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Reports on the topic "Model Transferability"

1

Seekamp, Erin, Xiao Xiao, Max van der Burg, and Mitchell Eaton. Testing the transferability of the optimal preservation model at Gulf Islands National Seashore. National Park Service, September 2021. http://dx.doi.org/10.36967/nrr-2287401.

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Crispin, Darla. Artistic Research as a Process of Unfolding. Norges Musikkhøgskole, August 2018. http://dx.doi.org/10.22501/nmh-ar.503395.

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As artistic research work in various disciplines and national contexts continues to develop, the diversity of approaches to the field becomes ever more apparent. This is to be welcomed, because it keeps alive ideas of plurality and complexity at a particular time in history when the gross oversimplifications and obfuscations of political discourses are compromising the nature of language itself, leading to what several commentators have already called ‘a post-truth’ world. In this brutal environment where ‘information’ is uncoupled from reality and validated only by how loudly and often it is voiced, the artist researcher has a responsibility that goes beyond the confines of our discipline to articulate the truth-content of his or her artistic practice. To do this, they must embrace daring and risk-taking, finding ways of communicating that flow against the current norms. In artistic research, the empathic communication of information and experience – and not merely the ‘verbally empathic’ – is a sign of research transferability, a marker for research content. But this, in some circles, is still a heretical point of view. Research, in its more traditional manifestations mistrusts empathy and individually-incarnated human experience; the researcher, although a sentient being in the world, is expected to behave dispassionately in their professional discourse, and with a distrust for insights that come primarily from instinct. For the construction of empathic systems in which to study and research, our structures still need to change. So, we need to work toward a new world (one that is still not our idea), a world that is symptomatic of what we might like artistic research to be. Risk is one of the elements that helps us to make the conceptual twist that turns subjective, reflexive experience into transpersonal, empathic communication and/or scientifically-viable modes of exchange. It gives us something to work with in engaging with debates because it means that something is at stake. To propose a space where such risks may be taken, I shall revisit Gillian Rose’s metaphor of ‘the fold’ that I analysed in the first Symposium presented by the Arne Nordheim Centre for Artistic Research (NordART) at the Norwegian Academy of Music in November 2015. I shall deepen the exploration of the process of ‘unfolding’, elaborating on my belief in its appropriateness for artistic research work; I shall further suggest that Rose’s metaphor provides a way to bridge some of the gaps of understanding that have already developed between those undertaking artistic research and those working in the more established music disciplines.

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