Refereed publications - Philippe LAMBERT (ULg, UCL)

Refereed Publications

2025-26

Doms, H., Lambert, P. and Legrand C. (2026). Joint modeling of longitudinal HRQoL data accounting for the risk of competing dropouts. Journal of the Royal Statistical Society: Series C (Applied Statistics). doi:10.1093/jrsssc/qlag036

Lambert, P. and Kreyenfeld, M. (2025). Time-varying exogenous covariates with frequently changing values in double additive cure survival model: an application to fertility. Journal of the Royal Statistical Society: Series A. doi:10.1093/jrsssa/qnaf035 - R-package tvcure

2023-24

Doms, H., Lambert, P. and Legrand, C. (2024). Flexible joint model for time-to-event and non-Gaussian longitudinal outcomes. Statistical Methods in Medical Research, 33(10): 1783-1799. doi:10.1177/096228022412690
Lambert, P. and Gressani, O. (2023). Penalty parameter selection and asymmetry corrections to Laplace approximations in Bayesian P-splines models. Statistical Modelling, 23(5-6): 409–423. doi:10.1177/1471082X231181173 - R-package ordgam
Lambert, P. (2023). Comments on: Nonparametric estimation in mixture cure models with covariates. Test, 32: 506-509. doi:10.1007/s11749-023-00860-3
Kreyenfeld, M., Konietzka, D., Lambert, P. and Ramos, .V (2023). Second birth fertility in Germany: social class, gender, and the role of economic uncertainty. European Journal of Population, 39:5. doi:10.1007/s10680-023-09656-5
Lambert, P. (2023). Nonparametric density estimation and risk quantification from tabulated sample moments. Insurance: Mathematics and Economics, 108: 177-189. doi:10.1016/j.insmatheco.2022.12.004 (Preprint) - R-package degross

2021-22

Lambert, P. (2021). Fast Bayesian inference using Laplace approximations in nonparametric double additive location-scale models with right- and interval-censored data. Computational Statistics and Data Analysis, 161: 107250. doi:10.1016/j.csda.2021.107250 - R-package DALSM
Gressani,O. and Lambert, P. (2021). Laplace approximation for fast Bayesian inference in generalized additive models based on P-splines. Computational Statistics and Data Analysis, 154: 107088. doi:10.1016/j.csda.2020.107088 - R-package blapsr

2019-20

Lambert, P. and Bremhorst, V. (2020). Inclusion of time-varying covariates in cure survival models with an application in fertility studies. Journal of the Royal Statistical Society: Series A, 183(1): 333-354. doi:10.1111/rssa.12501 - R-code

Lambert, P. and Bremhorst, V. (2019). Estimation and identification issues in the promotion time cure model when the same covariates influence long- and short-term survival. Biometrical Journal, 61(2): 275-279. doi:10.1002/bimj.201700250 - R-code
Bremhorst, V., Kreyenfeld M. and Lambert P. (2019). Nonparametric double additive cure survival models: an application to the estimation of the nonlinear effect of age at first parenthood on fertility progression. Statistical Modelling, 19(3): 248-275. doi:10.1177/1471082X18784685 - R-code

2017-18

Gressani, O. and Lambert P. (2018). Fast Bayesian inference using Laplace approximations in a flexible promotion time cure model based on P-splines. Computational Statistics and Data Analysis, 124: 151-167. doi:10.1016/j.csda.2018.02.007 - R-package blapsr

2015-16

Frasso, G. and Lambert, P. (2016). Bayesian inference in an extended SEIR model with nonparametric disease transmission rate: an application to the Ebola epidemic in Sierra Leone. Biostatistics, 17(4): 779-792. doi:10.1093/biostatistics/kxw027
Bremhorst, V., Kreyenfeld M. and Lambert P. (2016). Fertility progression in Germany: an analysis using flexible nonparametric cure survival models. Demographic Research, 35: 505-534. doi:10.4054/DemRes.2016.35.18. - R-code
Çetinyürek, A. and Lambert, P. (2016). Semiparametric frailty model for clustered interval-censored data. Statistical Modelling, 16(5): 360-391. doi:10.1177/1471082X16655631 - http://orbi.ulg.ac.be/handle/2268/163192
Jaspers, S., Lambert, P. and Aerts, M. (2016). A Bayesian approach to the semi-parametric estimation of a minimum inhibitory concentration distribution. Annals of Applied Statistics, 10(2): 906-924. doi:10.1214/16-AOAS918
Bremhorst, V. and Lambert, P. (2016). Flexible estimation in cure survival models using Bayesian P-splines. Computational Statistics and Data Analysis, 93: 270-284. doi:10.1016/j.csda.2014.05.009 - http://hdl.handle.net/2268/167542
Frasso, G., Jaeger, J. and Lambert, P. (2016). Inference in dynamic systems using B-splines and quasilinearized ODE penalties. Biometrical Journal, 58(3): 691-714. doi:10.1002/bimj.201500082 - http://hdl.handle.net/2268/191883 - R-code
Frasso, G., Jaeger, J. and Lambert, P. (2016). Parameter estimation and inference in dynamic systems described by linear partial differential equations. Advances in Statistical Analysis (AStA), 100(3): 259–287. doi:10.1007/s10182-015-0257-5 - http://hdl.handle.net/2268/188416

Rosas-Aguirre, A.M., Erhart, A., Llanos-Cuentas, A., Branch, O., Berkvens, D., Abatih, E., Lambert, P. Frasso, G., Rodriguez, H., Gamboa, D., Sihuincha, M., Rosanas-Urgell, A., D´Alessandro, U. and Speybroeck, N. (2015). Modelling the potential of focal screening and treatment as elimination strategy for Plasmodium falciparum malaria in the Peruvian Amazon Region. Parasites & Vectors, 8: 261. doi:10.1186/s13071-015-0868-4 - http://hdl.handle.net/2268/191967
Donneau, A.F., Mauer M., Lambert, P. Lesaffre E., Albert, A. (2015). Testing the proportional odds assumption in multiply imputed ordinal longitudinal data. Journal of Applied Statistics, 42: 2257-2279. doi: 10.1080/02664763.2015.1023704 - http://hdl.handle.net/2268/179868
Donneau, A.F., Mauer M., Lambert, P. Molenberghs, G. and Albert, A. (2015). Simulation-based study comparing multiple imputation methods for non-monotone missing ordinal data in longitudinal settings. Journal of Biopharmaceutical Statistics, 25: 570-601. doi:10.1080/10543406.2014.920864 - http://hdl.handle.net/2268/159590

2013-14

Lambert, P. (2014). Spline approximation to conditional Archimedean copula. Stat (Wiley), 3: 200-217. doi:10.1002/sta4.55 - http://hdl.handle.net/2268/168352 - ArXiv:1311.3888.
Jaeger, J. and Lambert, P. (2014). Bayesian penalized smoothing approaches in models specified using affine differential equations with unknown error distributions. Journal of Applied Statistics, 41 (12): 2709-2726. doi:10.1080/02664763.2014.927839 - http://hdl.handle.net/2268/149799

Lebrun, P., Boulanger, B., Debrus, B. and Lambert, P. (2013). A Bayesian design space for analytical methods based on multivariate models and predictions. Journal of Biopharmaceutical Statistics, 23: 1330-1351. doi:10.1080/10543406.2013.834922 - http://hdl.handle.net/2268/128222
Jaeger, J. and Lambert, P. (2013). Bayesian P-spline estimation in hierarchical models specified by systems of affine differential equations. Statistical Modelling, 13: 3-40. doi:10.1177/1471082X12471371 - http://hdl.handle.net/2268/143753.
Lambert, P. (2013). Nonparametric additive location-scale models for interval censored data. Statistics and Computing, 23: 75-90. doi:10.1007/s11222-011-9292-6 - http://hdl.handle.net/2268/101857

2011-12

Sanchez, X., Lambert, P. and Llewellyn, D.J. (2012). Efficacy of pre-ascent climbing route visual inspection in indoor sport climbing. Scandinavian Journal of Medicine and Science in Sport, 22: 67-72. doi:10.1111/j.1600-0838.2010.01151.x - http://hdl.handle.net/2268/62516
Lambert, P., Laurent S. and Veredas, D. (2012). Testing conditional asymmetry: a residual-based approach. Journal of Economic Dynamics and Control, 36: 1229-1247. doi:10.1016/j.jedc.2012.03.009 - http://hdl.handle.net/2268/123501.

Lambert, P. (2011). Comments on: Inference in multivariate Archimedean copulas models. Test, 20: 284-286. doi:10.1007/s11749-011-0256-0 - http://hdl.handle.net/2268/113175
Lambert, P., S. Perelman, P. Pestieau and J. Schoenmaeckers (2011). Health insurance coverage and adverse selection. In: A. Börsch-Supan, M. Brandt, K. Hank and M. Schröder (eds) - The Individual and the Welfare State. Life histories in Europe. Springer: Heidelberg. doi:10.1007/978-3-642-17472-8_20 - http://hdl.handle.net/2268/101863
Çetinyürek, A. and Lambert, P. (2011). Smooth estimation of survival functions and hazard ratios from interval-censored data using Bayesian penalized B-splines. Statistics in Medicine, 30: 75-90. doi:10.1002/sim.4081 - http://hdl.handle.net/2268/69424.
Lambert, P. (2011). Smooth semi- and nonparametric Bayesian estimation of bivariate densities from bivariate histogram data. Computational Statistics and Data Analysis, 55: 429-445. doi:10.1016/j.csda.2010.05.011 - http://hdl.handle.net/2268/69417

2009-10

Lambert, P. and Eilers, P.H.C. (2009). Bayesian density estimation from grouped continuous data. Computational Statistics and Data Analysis, 53: 1388-1399. doi:10.1016/j.csda.2008.11.022 - http://hdl.handle.net/2268/24258
Jullion, A., Lambert, P., Beck, B. and F. Vandenhende (2009). Pharmacokinetic parameters estimation using adaptive Bayesian P-splines models. Pharmaceutical Statistics, 8: 98-112. doi:10.1002/pst.336 - http://hdl.handle.net/2268/24451

2007-08

George, F., Daniaux, C., Génicot, G., Verhaege, B., Lambert, P. and Donnay, I. (2008). Set up of a serum-free culture system for bovine embryos: embryo development and quality before and after transient transfer. Theriogenology, 69: 612-623. doi:10.1016/j.theriogenology.2007.11.008 - http://hdl.handle.net/2268/24431

Lambert, P. (2007). Archimedean copula estimation using Bayesian splines smoothing techniques. Computational Statistics and Data Analysis, 51: 6307-6320. doi:10.1016/j.csda.2007.01.018 - http://hdl.handle.net/2268/24278
Spinewine, A., Swine, C., Dhillon, S., Lambert, P., Nachega, J., Wilmotte, L. and Tulkens, P.M. (2007). Effect of a collaborative approach on the quality of prescribing for geriatric inpatients: a randomized controlled trial. Journal of the American Geriatrics Society, 55: 658-665. doi:10.1111/j.1532-5415.2007.01132.x - http://hdl.handle.net/2268/24529
Jullion, A. and Lambert, P. (2007). Robust specification of the roughness penalty prior distribution in spatially adaptive Bayesian P-splines models. Computational Statistics and Data Analysis, 51: 2542-2558. doi:10.1016/j.csda.2006.09.027 - http://hdl.handle.net/2268/24438
Bolancé, C., Denuit, M., Guillén, M. and Lambert, P. (2007). Greatest accuracy credibility with dynamic heterogeneity: the Harvey-Fernandes model. Belgian Actuarial Bulletin, 7(1), 14-18. http://hdl.handle.net/2268/167579
Bugli, C. and Lambert, P. (2007). Comparison between principal component analysis and independent component analysis in EEG modelling. Biometrical Journal, 49: 312-327. doi:10.1002/bimj.200510285 - http://hdl.handle.net/2268/24445

2005-06

Eyers L., Smoot J.C., Smoot L.M., Bugli C., Urakawa H., McMurry Z., Siripong S., El Fantroussi S., Lambert, P., Agathos S.N. and Stahl D.A. (2006). Discrimination of shifts in a soil microbial community assosciated with TNT-contamination using a functional ANOVA of 16S rRNA hybridized to oligonucleotide microarrays. Environmental Science & Technology, 40: 5867-5873. doi:10.1021/es0609093 - http://hdl.handle.net/2268/24453
Bugli, C. and Lambert, P. (2006). Functional ANOVA with random functional effects: an application to event-related potentials modelling for electroencephalograms analysis. Statistics in Medicine, 25: 3718-3739. doi:10.1002/sim.2464 - http://hdl.handle.net/2268/24455

Lambert, P. and Eilers, P.H.C. (2005). Bayesian proportional hazards model with time varying regression coefficients: a penalized Poisson regression approach. Statistics in Medicine, 24: 3977-3989. doi:10.1002/sim.2396 - http://hdl.handle.net/2268/24460
Daubioul, C.A., Horsmans, Y., Lambert, P., Danse, E. and Delzenne, N.M. (2005). Effects of oligofructose on glucose and lipid metabolism in patients with nonalcoholic steatohepatitis : results of a pilot study. European Journal of Clinical Nutrition, 59: 723-726. doi:10.1038/sj.ejcn.1602127 - http://hdl.handle.net/2268/24506
Vandenhende, F. and Lambert, P. (2005). Local dependence estimation using semi-parametric Archimedean copulas. Canadian Journal of Statistics, 33: 377-388. doi:10.1002/cjs.5540330305 - http://hdl.handle.net/2268/24473
Denuit, M. and Lambert, P. (2005). Constraints on concordance measures in bivariate discrete data. Journal of Multivariate Analysis, 93: 40-57. doi:10.1016/j.jmva.2004.01.004 - http://hdl.handle.net/2268/24488

2003-04

Lambert, P., Collett, D., Kimber, A. and Johnson, R. (2004). Parametric accelerated failure time models with random effects and an application to kidney transplant survival. Statistics in Medicine, 23: 3177-3192. doi:10.1002/sim.1876 - http://hdl.handle.net/2268/24489

Cebrian, A., Denuit, M. and Lambert, P. (2003). Analysis of bivariate tail dependence using extreme values copulas: An application to the SOA medical large claims database. Belgian Actuarial Bulletin, volume 3. http://hdl.handle.net/2268/24500
Vandenhende, F., Lambert, P. and Ramadan, N. (2003). Statistical models for the analysis of controlled trials on acute migraine. Pharmaceutical Statistics, 2: 199-210. doi:10.1002/pst.61 - http://hdl.handle.net/2268/24504
Cebrian, A.C., Denuit, M. and Lambert, P. (2003). Generalized Pareto fit to the Society of Actuaries large claims database. North American Actuarial Journal: 18-36. http://hdl.handle.net/2268/24512
Vandenhende, F. and Lambert, P. (2003). Improved rank-based dependence measures for categorical data. Statistics and Probability Letters, 63: 157-163. doi:10.1016/S0167-7152(03)00063-4 - http://hdl.handle.net/2268/24513

2001-02

Vandenhende, F. and Lambert, P. (2002). On the joint analysis of longitudinal responses and early discontinuation in randomized trials. Journal of Biopharmaceutical Statistics, 12: 425-440. doi:10.1081/BIP-120016228 - http://hdl.handle.net/2268/24514
Lambert, P. and Vandenhende, F. (2002). A copula based model for multivariate non normal longitudinal data: analysis of a dose titration safety study on a new antidepressant. Statistics in Medicine, 21: 3197-3217. http://dx.doi.org/10.1002/sim.1249 - http://hdl.handle.net/2268/24515
Lambert, P. (2002). A mixture model to assess the effect of a hormonal stimulation on the development of follicles in prepubertal heifers. Applied Statistics, 51, Part 4: 405-420. doi:10.1111/1467-9876.00277 - http://hdl.handle.net/2268/24516

Denuit, M. and Lambert, P. (2001). Smoothed nonparametric maximum likelihood estimation of the risk distribution underlying bonus-malus systems. Proceedings of the Casualty Actuarial Society, vol. LXXXVIII, Part 2, No. 169: 142-174. http://hdl.handle.net/2268/24517
Kaidi, S., Bernard, S., Lambert, P. Massip, A. and Donnay, I. (2001). Effect of conventional controlled-rate freezing and vitrification on quality of bovine blasotcysts produced in vitro. Biology of Reproduction, 65: 1127-1134. doi:10.1095/biolreprod65.4.1127 - http://hdl.handle.net/2268/24518

1999-2000

Kaidi, S., Donnay, I., Lambert, P. Dessy, F. and Massip, P. (2000). Osmotic behaviour of in vitro produced bovine blastocysts in cryoprotectant solutions as a potential predictive test of survival. Cryobiology, 41: 106-115. doi:10.1006/cryo.2000.2272 - http://hdl.handle.net/2268/24519

Lambert, P. and Lindsey, J.K. (1999). Analysing financial returns using regression models based on non-symmetric stable distributions. Applied Statistics, 48: 409-424. doi:10.1111/1467-9876.00161 - http://hdl.handle.net/2268/24520 - R-package stable
Votion, D., Vandenput, S., Duvivier, D.H., Lambert, P. , Art, T. and Lekeux, P. (1999). Alveolar clearance in chronic obstructive pulmonary disease affected horses. American Journal of Veterinary Research, 60: 495-500. http://hdl.handle.net/2268/8497

1997-98

Lindsey, J.K and Lambert, P. (1998). On the appropriateness of marginal models for repeated measurements in clinical trials. Statistics in Medicine, 17: 447-469. http://hdl.handle.net/2268/24521
Votion, D., Vandenput, S., Duvivier, D.H., Lambert, P. , Art, T. and Lekeux, P. (1998). Scintigraphical evaluation of alveolar clearance in horses. The Veterinary Journal, 156: 51-56. doi:10.1016/S1090-0233(98)80061-0 - http://hdl.handle.net/2268/4428

Lambert, P. (1997). Predictions in overdispersed series of counts using an approximate predictive likelihood. Journal of Forecasting, 16: 195-207. http://hdl.handle.net/2268/24523

1995-96

Lambert, P. (1996) Modelling irregularly sampled profiles of nonnegative dog triglyceride responses under different distributional assumptions. Statistics in Medicine, 15: 1695-1708. http://hdl.handle.net/2268/24287
Lambert, P. (1996). Modelling of non-linear growth curves on series of correlated count data measured at unequally spaced times: a full likelihood based approach. Biometrics, 52: 50-55. doi:10.2307/2533143 - http://hdl.handle.net/2268/24525
Lambert, P. (1996). Modelling of repeated series of count data measured at unequally spaced times. Applied Statistics, 45: 31-38. doi:10.2307/2986220 - http://hdl.handle.net/2268/24526

Lindsey, J.K. and Lambert, P. (1995). Dynamic generalized linear models and repeated measurements. Journal of Statistical Planning and Inference, 47: 129-139. httdoi:10.1016/0378-3758(94)00126-G - http://hdl.handle.net/2268/24527
Génicot, B., Lambert, P. , Votion, D., Close, R., Lindsey, J.K., Lekeux, P.(1995). Ability of bronchodilators to prevent bovine experimental respiratory distress. Veterinary Research, 26: 276-283. http://hdl.handle.net/2268/64830
Génicot, B., Lapp, K., Close, R., Lindsey, J.K., Lambert, P., Lekeux, P. (1995). Physical properties of particles of ipratropium and clenbuterol generated by equipment suitable for the inhalation of drugs by calves. Research in Veterinary Science, 59: 164-167. doi:10.1016/0034-5288(95)90053-5 - http://hdl.handle.net/2268/64868

1993-94

Génicot, B., Lapp, K., Close, R., Lindsey, J.K., Lambert, P., Lekeux, P. (1994). Physical properties of drug particles generated, under different high working pressures, by equipment for delivering atomized drug in calves. Pflügers Archiv European Journal of Physiology, 427: (3-4) R63-R63.
Génicot, B., Peckova, M., Close, R., Lindsey, J.K., Lambert, P. Lekeux, P. (1994). Technical study of some major parameters influencing the performances of an aerosol delivery equipment suitable for calves. Veterinary Research, 25 (5), 468-477.

Génicot, B., Mouligneau, F., Lindsey, J.K., Lambert, P., Close, R., Lekeux, P. (1993). Induction of a Serotonin-S2 receptor blockade during early or late stage of acute respiratory distress syndrome in double-muscled calves : a comparative study. Journal of Veterinary Medicine A, 40, 241-248.
Génicot, B., Mouligneau, F., Lindsey, J.K.,Lambert, P., Close, R., Lekeux, P. (1993). Efficiency of 5-Hydroxytryptamine receptor blockade as therapeutic measure during acute respiratory distress syndrome in double-muscled cattle. Journal of Veterinary Medicine A, 40, 185-193.