Search Results - "Parameter estimation."

Estimating a social accounting matrix using cross entropy methods by Robinson, Sherman, Cattaneo, Andrea, El-Said, Moataz

“…The paper describes the RAS procedure and “cross entropy” method, and compares the underlying “information theory” and classical statistical approaches to parameter estimation. An example is presented applying the cross entropy approach to data from Mozambique. …”
Get full text

Biological support for modeling the transmission dynamics of cowdriosis by Peter, T.F., O'Callaghan, C.J., Medley, G.F., Mahan, S.M., Perry, Brian D.

“…When initially constructed, these models obtained data for parameter estimation from previously published literature. …”
Get full text

Quantifying model uncertainty to improve watershed-level ecosystem service quantification: a global sensitivity analysis of the RUSLE by Estrada Carmona, Natalia, Harper, E.B., DeClerck, Fabrice A.J., Fremier, Alexander K.

“…Yet, uncertainty produced by local context or parameter estimation remains poorly quantified and documented. …”
Get full text

Random regression in comparison with finite-dimensional models for estimation of genetic parameters for growth traits in goats by Tesema, Z., Deribe, B., Getachew, Tesfaye, Meseret, Selam, Gizaw, Solomon

“…The application of the random regression model in comparison with finite-dimensional models (univariate and multivariate animal models) for genetic parameter estimation of growth traits in goats was evaluated in this study. …”
Get full text

Application of advanced Wflow_sbm Model with the CMIP6 climate projection for flood prediction in the data-scarce: Lake-Tana Basin, Ethiopia [Abstract only] by Alaminie, A., Amarnath, Giriraj, Padhee, Suman Kumar, Ghosh, Surajit, Tilahun, S., Mekonnen, M., Assefa, G., Seid, Abdulkarim, Zimale, Fasikaw A., Jury, M.

“…Model-independent multi-algorithm optimization and parameter estimation tool is implemented for calibration and validation of Wflow. …”
Get full text

Bayesian geostatistical analysis and prediction of Rhodesian human African trypanosomiasis by Wardrop, N.A., Atkinson, P.M., Gething, P.W., Fèvre, Eric M., Picozzi, K., Kakembo, A.S.

“…Using a spatial analysis in which a generalised linear geostatistical model is used in a Bayesian framework to account explicitly for spatial autocorrelation and incorporate uncertainty in input data and model parameters we are able to demonstrate a more rigorous analytical approach, potentially resulting in more accurate parameter and significance estimates and increased predictive accuracy, thereby allowing an assessment of the validity of the livestock movement hypothesis given more robust parameter estimation and appropriate assessment of covariate effects. …”
Get full text

Comparison of statistical models in a meta-analysis of fungicide treatments for the control of citrus black spot caused by Phyllosticta citricarpa by Makowski, David, Vicent, Antonio, Pautasso, M., Stancanelli, G., Rafoss, T.

“…The models differed in the assumption made on the variability of the treatment effect (constant or variable between experimental plots) and in the method used for parameter estimation (classical or Bayesian). Odds ratios were estimated for two groups of fungicides, copper compounds and dithiocarbamates, widely applied for CBS control using each model in turn. …”
Get full text

Field experiences and lessons learned from applying participatory system dynamics modelling to sustainable water and agri-food systems by Kotir, Julius H., Jagustovic, Renata, Papachristos, George, Zougmore, Robert B., Kessler, Aad, Reynolds, Martin, Ouedraogo, Mathieu, Ritsema, Coen J., Aziz, Ammar Abdul, Johnstone, Ron

“…Our findings demonstrate that stakeholders can actively contribute to all phases of the system dynamics modelling process, including parameter estimation, sensitivity analysis, and numerical simulation experiments. …”
Get full text

Genomic evaluation for breeding and genetic management in Cordia africana, a multipurpose tropical tree species by Ousmael, Kedra M., Cappa, Eduardo Pablo, Hansen, Jon K., Hendre, Prasad, Hansen, Ole K.

“…Single-step Genomic Best Linear Unbiased Prediction (ssGBLUP) analysis is a cost-effective option for using genomic tools to enhance the accuracy of predicted breeding values and genetic parameter estimation in forest tree species. Here, we tested the efficiency of ssGBLUP in a tropical multipurpose tree species, Cordia africana, by partial population genotyping. …”
Get full text
Get full text
Get full text

Revisiting the relationship between stomatal size and speed across species – a meta‐analysis by Woning, Nik, Al‐Salman, Yazen, Kaiser, Elias, Berman, Sarah R., Brendel, Oliver, Cano, Francisco Javier, Carpentier, Sebastien, Centritto, Mauro, Drake, Paul L., Durand, Maxime, Eyland, David, Franks, Peter J., Gerardin, Theo, Ghannoum, Oula, Haworth, Matthew, Kübarsepp, Liisa, Lawson, Tracy, Le Thiec, Didier, Li, Yong, Marcelis, Leo F. M., Marino, Giovanni, McAusland, Lorna, Muir, Christopher D., Niinemets, Ülo, Nunes, Tiago D. G., Raissig, Michael T., Sakoda, Kazuma, Sugiura, Daisuke, Tosens, Tiina, Zhang, Qiangqiang, Zhang, Ningyi, Vialet‐Chabrand, Silvere

“…We found significant differences in parameter estimation between models. Stomatal anatomical traits and kinetic parameters showed large variation across species. …”
Get full text

Integrating genetic and genomic analyses of combined health data across ecotypes to improve disease resistance in indigenous African chickens by Banos, Giorgios, Lindsay, V., Desta, T.T., Bettridge, Judy M., Sánchez Molano, E., Vallejo Trujillo, Adriana, Matika, O., Dessie, Tadelle, Wigley, P., Christley, Robert M., Kaiser, P., Hanotte, Olivier H., Psifidi, A.

“…Combined data from the two chicken ecotypes, Horro (n=384) and Jarso (n=376), were jointly analysed for genetic parameter estimation, genome-wide association studies (GWAS), genomic breeding value (GEBVs) calculation, genomic predictions, whole-genome sequencing (WGS), and pathways analyses. …”
Get full text

Estimation and analysis of insect population dynamics parameters via physiologically based models and hybrid genetic algorithm MCMC methods by Rossini, Luca, Bruzzone, Octavio Augusto, Speranza, Stefano, Delfino, Ines

“…Despite the scientific community in recent years providing valuable models that faithfully represent terrestrial arthropods populations, such as insects, one of the main concerns is still represented by the parameter estimation. Parameters, in fact, characterise the species and their estimation are often entrusted to dedicated laboratory experiments that require specific equipment and highly qualified personnel. …”
Get full text
Get full text
Get full text

Evaluation of the APSIM model in cropping systems of Asia by Gaydon, D.S., Balwinder-Singh, Wang, E., Poulton, P.L., Ahmad, B., Ahmed, F., Akhter, S., Ali, I., Amarasingha, R., Chaki, A.K., Chen, C., Choudhury, B.U., Darai, R., Das, A., Hochman, Z., Horan, H., Hosang, E.Y., Kumar, P. Vijaya, Khan, A.S.M.M.R., Laing, A.M., Liu, L., Malaviachichi, M.A.P.W.K., Mohapatra, K.P., Muttaleb, M.A., Power, B., Radanielson, A.M., Rai, G.S., Rashid, M.H., Rathanayake, W.M.U.K., Sarker, M.M.R., Sena, D.R., Shamim, M., Subash, N., Suriadi, A., Suriyagoda, L.D.B., Wang, G., Wang, J., Yadav, R.K., Roth, C.H.

“…Once properly parameterised, the model performed well in simulating the diversity of cropping systems to which it was applied with RMSEs generally less than observed experimental standard deviations (indicating robust model performance), and with particular strength in simulation of multi-crop sequences. Input parameter estimation challenges were encountered, and although ‘work-arounds’ were developed and described, in some cases these actually represent model deficiencies which need to be addressed. …”
Get full text

Quantitative genetic parameters for growth and wood properties in Eucalyptus “urograndis” hybrid using near-infrared phenotyping and genome-wide SNP-based relationships by de Lima, Bruno Marco, Cappa, Eduardo Pablo, Silva-Junior, Orzenil B., García, Carla C., Mansfield, Shawn D., Grattapaglia, Dario

“…Trees were genotyped with 33,398 SNPs and 24,001 DArT-seq genome-wide markers and genomic realized relationship matrices (GRM) were used for parameter estimation with an individual-tree additivedominant mixed model. …”
Get full text
Get full text
Get full text

Analysis of blast resistance in rice, comparing biotechnology methods with traditional breeding by Amézquita, María Cristina, Martínez Racines, César Pompilio, Correa Victoria, Fernando J., Lema, Germán

“…The relatively recent developments on statistical methods for the analysis of categorical variables allows parameter estimation and hypothesis testing using linear models on functions of response frequencies. …”
Get full text

Multiscale mathematical modeling in systems biology : a framework to boost plant synthetic biology by Lucido, Abel, Basallo, Oriol, Marin-Sanguino, Alberto, Eleiwa, Abderrahmane, Martinez, Emilce Soledad, Vilaprinyo, Ester, Sorribas, Albert, Alves, Rui

“…Through modeling techniques such as parameter estimation, bifurcation analysis, and sensitivity analysis, researchers can identify mutational targets and anticipate pleiotropic effects, thereby enhancing the safety of genetically engineered species. …”
Get full text
Get full text
Get full text

Generalised matrix and compartmental population models. by Mwambi, H.G.

“…Sub-section 5.2.2 discusses the parameter estimation in the model by the MLE method, assumingthe parameters are functions of several host-specific attributes. …”
Get full text

Respuesta del ñame espino a diferentes densidades de siembra y altura de espalderas: densidades de siembra en Dioscorea rotundata by Tamara Morelos, Ricardo Enrique, Luna Castellanos, Lily Lorena, Espitia Montes, Amaury Aroldo, Novoa Yanez, Rafael Segundo, Regino Hernandez, Sol Mara, Ossa Albis, Victor Alfonso De la

Get full text
Get full text

Spatial continuity in tree diameter distribution by Berhe, Leakemariam

“…From the truncated Weibull distribution, the maximum likelihood scale and shape parameter estimates of each plot data is obtained. Consequently, both parameter estimates, as attributes of tree dbh distribution, are subjected to spatial variation study usmg omnidirectional semivariogram and associated models at compartment level. …”
Get full text

Sustainable management of globally significant endemic ruminant livestock in West Africa: Estimate of livestock demographic parameters in Senegal by Ejlertsen, M., Poole, Elizabeth J., Marshall, Karen

“…The demographic parameters estimated included natural rates, such as parturition, abortion and mortality rates, as well as management rates, such as offtake and intake rates.…”
Get full text