Research

Welcome to my research page. Below you will find a list of my publications and working papers as well as links to R/python codes(take a look at my project page).

My research interests include time series analysis, robust statistics, multivariate statistics, computational statistics, and machine learning, all in a big-data setting.

Feel free to contact me if you want to discuss them or the analysis performed. I’ll be glad to help ^_^

Journal articles

  1. M. Enache, M. Pirvulet, G. González García, M. Lecoupeur, H. Cotta and K. Koutoulis. Efficacy and Safety of a Heterologous Combination of GI-1 (B48) and GI-13 (1/96) Strains Against IBV GI-23 (Variant 2) Field Challenge. J. World Poult. Res. 14(2): 138-145, 2024. [LINK]
  2. L.L.C. Gaona, C. Courtillon, F-X. Briand, H.H.A. Cotta, S. Bougeard, E. Hirchaud, A. Leroux, Y. Blanchard, A. Keita, M. Amelot, N. Eterradossi, T. Tatár-Kiss, I. Kiss, C. Cazaban, B. Grasland and S.M. Soubies. High Antigenic Diversity Of Serotype 1 Infectious Bursal Disease Virus Revealed By Antigenic Cartography. Virus Research, 2022. [LINK]
  3. F.S Serpa, V.A. Reisen, E. Zandonade, H.H.A. Cotta, D. Solé. Air pollution and respiratory health. Arquivos de Asmas Alergia e Imunologia, v. 6, p. Numero 1, 2022. [LINK](in portuguese).
  4. G. Franzo, W. Swart, M. Arbe, H. Cotta, M. Lecoupeur, W. Boyer, K. Koutoulis and M. Cecchinato. Impact of Rotten eggs on hatchery performances: a multicentric study. Animals, 2020. [LINK]
  5. H.H.A. Cotta, V.A. Reisen, P. Bondon and P.R. Prezotti. Management of an air quality monitoring network using robust principal component analysis. Environmental Modeling & Assessment, 2020. [LINK]
  6. B. Zamprogno, V.A. Reisen, P. Bondon, H.H.A. Cotta and N.C. Reis. Principal component analysis in the time domain and its implications with autocorrelated data. Journal of Statistical Computation and Simulation, 2020. [LINK]
  7. M. Machado, V.A. Reisen, J.M. Santos, N.C. Reis, S. Frere, P. Bondon, M. Íspany and H.H.A. Cotta. A new methodology using multivariate time series techniques to estimate the impact of particulate matter on the perceived annoyance. Atmospheric Environment, vol.222, p.117080, 2020.[LINK]
  8. V.A. Reisen, A.M. Sgrancio, C. Lévy-Leduc, P. Bondon, P., E.Z. Monte, H.H.A. Cotta and F. Ziegelmann. A. Robust factor modeling for high-dimensional time series: An application to air pollution data. Applied Mathematics and Computation, vol. 346, p.842-852, 2019.[LINK]
  9. H.H.A. Cotta, W.S.C. Correa and T.T.A. Albuquerque. Aplicação da distribuição de gumbel para valores extremos de precipitação no município de Vitória-ES. Revista Brasileira de Climatologia, vol. 19, p.203-2017, 2017.[LINK](in portuguese).

Book chapters

  1. F.I. Tristão, H.H.A. Cotta, A.C.P. Garcia, E.F.A Lima, M.A.C. Andrade. ABSENTEÍSMO DOS USUÁRIOS NA ATENÇÃO ESPECIALIZADA À SAÚDE: POTENCIAIS FATORES CAUSADORES. in M.A.C. Andrade et. al.: GESTÃO E PRÁTICAS EM SAÚDE COLETIVA, 2022. [LINK]
  2. V.A. Reisen, C. Lévy-Leduc, H.H.A. Cotta, P. Bondon and M. Ispany. An overview of robust spectral estimators. in F. Chaari et al. (Eds.): Cyclostationarity: Theory and Methods – IV, 2019. [LINK]
  3. M. Íspany, V.A. Reisen, G.C Franco, P. Bondon, H.H.A. Cotta, P.R Prezotti and F.S. Serpa. On generalized additive models with dependent time series covariates. In I. Rojas, H. Pomares and O. Valenzuela, editors, Time Series Analysis and Forecasting, pages 289–308, Cham. Springer International Publishing,2018. [LINK]
  4. V.A. Reisen, C. Lévy-Leduc and H.H.A. Cotta. Long-memory models under outliers: an application to air pollution levels. Air and Noise Pollution, vol. 3 of the Series “Environmental Science and Engineering (12 Vols.)”, 2017.

Conference papers

  1. E. Dupas, G. Dauphin and H. Cotta. How does a pharmaceutical industry ensure reliable testing for post-vaccination monitoring: Ceva Animal Health initiatives. In 7th Congress of the European Association of Veterinary Laboratory Diagnosticians – EAVLD, 2024.
  2. M. Yerpes, M. Zaragozi, P. Cruz-Dousdebes and H. Cotta. Development of a spray application system for the administration of mother hen uropygial secretion analogue in hatching eggs. In XVI European Poultry Conference, 2024.
  3. S. Van Colen, P. De Backer, G-J. De Reus, O. Ninet and H. Cotta. Impact of EP- and A.p.-like lung lesions on growth of fattening pigs. In 27th International Pig Veterinary Society Congress & 15th European Symposium of Porcine Health Management, 2024.
  4. P. Cruz-Dousdebes, H. Cotta, S. Horvat, J. Shiels, M. Lecoupeur, T. Lewiner and J. Leorat. Assessment of day-old-chick’s vocalizations at the hatchery after maternal pheromone exposure during incubation. In 22nd Congress of World Veterinary Poultry Association, 2023.
  5. G. Dauphin, E. Dupas, H. Cotta and S. De Wit. Ceva quality recognition program for poultry serology. In 22nd Congress of World Veterinary Poultry Association, 2023.
  6. W.-F. Kwan, P. Mortensen, H. Smits, H. Cotta and I. Kiss. Clinical Protection and Reduced Post-Challenge Shedding Provided by Three Different Pseudorabies MLV Vaccines Against Challenge Infection with Virulent NIA-3 Strain. In 10th Asian Pig Veterinary Society (APVS), 2023.
  7. P. Mortensen, H. Smits, H. Cotta, I. Kiss and W.-F. Kwan. Virus Neutralization and Shedding Comparing Three Different Pseudorabies MLV Vaccines Against a Virulent NIA-3 Challenge. In 10th Asian Pig Veterinary Society (APVS), 2023.
  8. C. Carranza, M. Lecoupeur, H.H.A. Cotta, L. Sesti and J. Saravia. Serological monitoring a tool to evidence viral shedding reduction due to continuous vaccination with a rFP-gB vector vaccine in broilers. In 10th International Symposium On Avian Viral Respiratory Diseases, 2022.
  9. J. Carranza, M. Lecoupeur, H.H.A. Cotta and L. Sesti. Real World Evidence: Economic Assessment of the Impact of Q1-like Infectious Bronchitis Variant in a Broiler Productive Zone in Peru. In American Association of Avian Pathologists Annual Meeting, 2022.
  10. J. Chacón, G. Albarello, G. Souza, G. Barboza, M. Lecoupeur, H.H.A. Cotta and L. Sesti. Infectious Bronchtis Elisa Antibody Tiers As Indicator Of Productive Impact In Naturally Infected Broiler Flocks. In American Association of Avian Pathologists Annual Meeting, 2022.
  11. E. Moreau, I. Savonik, M. Lecoupeur, H.H.A. Cotta, J. Leorat and S. Mouchel. Efficacité de la vaccination au couvoir de poulets de chair contre la bronchite infectieuse (Mass + 793/B). In 14èmes JRA-JRFG, 2022.
  12. H.H.A. Cotta, V.A. Reisen, P. Bondon and C. Lévy-Leduc. A robust alternative to the sample autocovariance and autocorrelation functions. In International Conference on Robust Statistics, 2019.
  13. H.H.A. Cotta, V.A. Reisen, P. Bondon and C. Lévy-Leduc. Robust autocovariance estimation from the frequency domain. In International conference on Time Series and Forecasting, 2018.
  14. H.H.A. Cotta, V.A. Reisen, P. Bondon and C. Lévy-Leduc. Robust estimation of covariance and correlation functions of a stationary multivariate process. In International conference on Time Series and Forecasting, 2017.
  15. F. Tristão, M. Andrare, E. Rocha, R. Lima, A. Garcia, H.H.A. Cotta, B. Barbosa, A. Tristão and C. Fioroti. Users’ Absenteeism in Health Services: An Analysis of the Health System Dynamics. In: 15th World Congress on Public Health, 2017.
  16. M. Machado, J. Santos, N. Reis, V. Reisen, I. Mavroids and H.H.A. Cotta. Correlation between annoyance and the combined effect of particulate matter. In 10th International Conference on Air Quality - Science and Application Hatfield: Published by the University of Hertfordshire, 2016.
  17. V. Reisen, H.H.A. Cotta and E.Z. Monte. Principal component analysis with outliers and time series data. In 60th World Statistics Congress, 2015.

Conference papers - Brazil

  1. V.A. Reisen, C.L.N. Azevedo, P. Bondon, H.H.A. Cotta and F.S. Serpa. Additive mixed models with time series structures In: XVIII School of Time Series and Econometrics, 2019.
  2. F.S. Serpa, V.A. Reisen, C.C. Solci, H.H.A. Cotta and P.R Prezotti. A influência da qualidade do ar na função pulmonar de crianças e adolescentes In: XVI Escola de Modelos de Regressão, 2019.
  3. C. Giubertim, G. Nascimento, P. Costa, H.H.A. Cotta and E. Zandonade. Unlicensed and off-label use of medicines in an university hospital In: III Congress of the Brazilian Association of Pharmaceutical Sciences, 2016.
  4. M. Pimentel, R. Koch, L. Alves, F. Braga Neto, M. Filett, H.H.A. Cotta and F. Serpa. Qualidade de vida em pacientes com asma grave em uso de omalizumabe. In: XLIII Congresso Brasileiro de Alergia e Imunologia, 2016.
  5. F. Zaganeli, G. Brito, M. Morguetti, H.H.A. Cotta, A. Santos and J. Sossai. Mãe adolescente: geração NEM - NEM. In: 37º Congresso Brasileiro de Pediatria, 2015.
  6. H.H.A. Cotta, A. Bertolde, H. Machado and G. Silva. Análise de padrões de esquistossomose no Estado do Espírito Santo em 2010. In IX Congresso Brasileiro de Epidemiologia, 2014.