Pierre Joly

Mortality and survival in early stages control recruitment in Calanus finmarchicus (2009)

Plourde, Stéphane, Maps, Frédéric, Joly, Pierre

We present a data set describing the seasonal climatology and the spatial pattern in mortality and recruitment in early stages of Calanus finmarchicus in the lower St Lawrence estuary (LSLE) and the...

Choice between semi-parametric estimators of Markov and non-Markov multi-state models from coarsened observations (2007)

Commenges, Daniel, Joly, Pierre, Gégout-Petit, Anne, Liquet, Benoit

We consider models based on multivariate counting processes, including multi-state models. These models are specified semi-parametrically by a set of functions and real parameters. We consider...

A SAS macro for parametric and semiparametric mixture cure models. (2007)

Corbière, Fabien, Joly, Pierre

Cure models have been developed to analyze failure time data with a cured fraction. For such data, standard survival models are usually not appropriate because they do not account for the possibility...

Semi- and non-parametric competing risks analysis of right censored data and failure cause missing completely at random (2007)

Bordes, Laurent, Dauxois, Jean-Yves, Joly, Pierre

We consider a nonparametric and a semiparametric (in presence of covariates) additive hazards rate competing risks model with censoring and failure cause possibly missing completely at random....

Advanced survival models for risk-factor analysis in scrapie. (2007)

Corbière, Fabien, Barillet, Francis, Andréoletti, Olivier, Fidelle, Francis, Laphitz-Bordet, Nathalie, Schelcher, François, ...

Because of the confounding effects of long incubation duration and flock management, accurate epidemiological studies of scrapie outbreaks are difficult to carry out. In this study, 641 Manech...

Advanced survival models for risk-factor analysis in scrapie. (2007)

Corbière, Fabien, Barillet, Francis, Andréoletti, Olivier, Fidelle, Francis, Laphitz-Bordet, Nathalie, Schelcher, François, ...

Because of the confounding effects of long incubation duration and flock management, accurate epidemiological studies of scrapie outbreaks are difficult to carry out. In this study, 641 Manech...

Semi- and non-parametric competing risks analysis of right censored data and failure cause missing completely at random (2007)

Bordes, Laurent, Dauxois, Jean-Yves, Joly, Pierre

We consider a nonparametric and a semiparametric (in presence of covariates) additive hazards rate competing risks model with censoring and failure cause possibly missing completely at random....

A SAS macro for parametric and semiparametric mixture cure models. (2007)

Corbière, Fabien, Joly, Pierre

Cure models have been developed to analyze failure time data with a cured fraction. For such data, standard survival models are usually not appropriate because they do not account for the possibility...

Choice between semi-parametric estimators of Markov and non-Markov multi-state models from coarsened observations (2007)

Commenges, Daniel, Joly, Pierre, Gégout-Petit, Anne, Liquet, Benoit

We consider models based on multivariate counting processes, including multi-state models. These models are specified semi-parametrically by a set of functions and real parameters. We consider...

Morph switching in a dimorphic population of Triturus alpestris (Amphibia, Caudata) (2007)

Denoël, Mathieu, Lena, Jean-Paul, Joly, Pierre

The usual life cycle of Alpine newts comprises an aquatic larval stage and a terrestrial juvenile and adult stage. However, some populations differ from this pattern in exhibiting facultative...

Advanced survival models for risk-factor analysis in scrapie. (2007)

Corbière, Fabien, Barillet, Francis, Andréoletti, Olivier, Fidelle, Francis, Laphitz-Bordet, Nathalie, Schelcher, François, ...

Because of the confounding effects of long incubation duration and flock management, accurate epidemiological studies of scrapie outbreaks are difficult to carry out. In this study, 641 Manech...

A SAS macro for parametric and semiparametric mixture cure models. (2007)

Corbière, Fabien, Joly, Pierre

Cure models have been developed to analyze failure time data with a cured fraction. For such data, standard survival models are usually not appropriate because they do not account for the possibility...

Choice between semi-parametric estimators of Markov and non-Markov multi-state models from coarsened observations (2007)

Commenges, Daniel, Joly, Pierre, Gégout-Petit, Anne, Liquet, Benoit

We consider models based on multivariate counting processes, including multi-state models. These models are specified semi-parametrically by a set of functions and real parameters. We consider...

Evolutionary ecology of facultative paedomorphosis in newts and salamanders (2005)

Denoël, Mathieu, Joly, Pierre, Whiteman, Howard H.

Facultative paedomorphosis is an environmentally induced polymorphism that results in the coexistence of mature, gilled, and fully aquatic paedomorphic adults and transformed, terrestrial,...

Trophic specialisations in alternative heterochronic morphs (2004)

Denoël, Mathieu, Schabetsberger, Robert, Joly, Pierre

Polymorphisms are suspected of reducing competition among conspecifics in heterogeneous environments by allowing differential resource use. However the adaptive significance of alternative morphs has...

Multi-state model for dementia, institutionalization and death (2004)

Commenges, Daniel, Joly, Pierre

We consider a multi-state model for jointly modeling dementia, institutionalization and death from data of cohort studies. Such a model could help understanding the relationships between dementia and...

Multi-state model for dementia, institutionalization and death (2004)

Commenges, Daniel, Joly, Pierre

We consider a multi-state model for jointly modeling dementia, institutionalization and death from data of cohort studies. Such a model could help understanding the relationships between dementia and...

Multi-state model for dementia, institutionalization and death (2004)

Commenges, Daniel, Joly, Pierre

We consider a multi-state model for jointly modeling dementia, institutionalization and death from data of cohort studies. Such a model could help understanding the relationships between dementia and...

Maximum penalized likelihood estimation in a gamma-frailty model. (2003)

Rondeau, Virginie, Commenges, Daniel, Joly, Pierre

The shared frailty models allow for unobserved heterogeneity or for statistical dependence between observed survival data. The most commonly used estimation procedure in frailty models is the EM...

Maximum penalized likelihood estimation in a gamma-frailty model. (2003)

Rondeau, Virginie, Commenges, Daniel, Joly, Pierre

The shared frailty models allow for unobserved heterogeneity or for statistical dependence between observed survival data. The most commonly used estimation procedure in frailty models is the EM...

Maximum penalized likelihood estimation in a gamma-frailty model. (2003)

Rondeau, Virginie, Commenges, Daniel, Joly, Pierre

The shared frailty models allow for unobserved heterogeneity or for statistical dependence between observed survival data. The most commonly used estimation procedure in frailty models is the EM...

IMPACTS OF TATTOOING AND PIT-TAGGING ON SURVIVAL AND FECUNDITY IN THE ALPINE NEWT (TRITURUS ALPESTRIS) (2002)

Nadege Perret, Pierre Joly

We investigated the impacts of PIT-tagging and tattooing on survival, condition, and egg laying in Alpine newts (Triturus alpestris) by both field and laboratory experiments. A laboratory experiment...

A penalized likelihood approach for an illness-death model with interval-censored data: application to age-specific incidence of dementia. (2002)

Joly, Pierre, Commenges, Daniel, Helmer, Catherine, Letenneur, Luc

We consider the problem of estimating the intensity functions for a continuous time 'illness-death' model with intermittently observed data. In such a case, it may happen that a subject becomes...

A penalized likelihood approach for an illness-death model with interval-censored data: application to age-specific incidence of dementia. (2002)

Joly, Pierre, Commenges, Daniel, Helmer, Catherine, Letenneur, Luc

We consider the problem of estimating the intensity functions for a continuous time 'illness-death' model with intermittently observed data. In such a case, it may happen that a subject becomes...

Short- and long-term advantages of an alternative ontogenetic pathway (2002)

Denoël, Mathieu, Hervant, F, Schabetsberger, R, Joly, Pierre

We documented hypotheses on the evolution of developmental heterochronies by estimating short- and long-term advantages of alternative morphs. In this respect, we compared food energy intakes and...

A penalized likelihood approach for an illness-death model with interval-censored data: application to age-specific incidence of dementia. (2002)

Joly, Pierre, Commenges, Daniel, Helmer, Catherine, Letenneur, Luc

We consider the problem of estimating the intensity functions for a continuous time 'illness-death' model with intermittently observed data. In such a case, it may happen that a subject becomes...

A penalized likelihood approach for an illness-death model with interval-censored data: application to age-specific incidence of dementia (2002)

Joly, Pierre, Commenges, Daniel, Helmer, Catherine, Letenneur, Luc

We consider the problem of estimating the intensity functions for a continuous time ‘illness–death’ model with intermittently observed data. In such a case, it may happen that a subject becomes...

Adaptive significance of facultative paedomorphosis in Triturus alpestris (Amphibia, Caudata): resource partitioning in an alpine lake (2001)

Denoël, Mathieu, Joly, Pierre

1. Facultative paedomorphosis is a polymorphism that has important evolutionary implications in promoting morphological differentiation and variation in habitat use. It occurs in several urodele...

Size-related predation reduces intramorph competition in paedomorphic Alpine newts (2001)

Denoël, Mathieu, Joly, Pierre

Evolutionary theory assumes that facultative paedomorphosis in newts and salamanders is adaptive in allowing either a younger age at maturity or resource partitioning between the heterochronic...

Neoteny and progenesis as two heterochronic processes involved in paedomorphosis in Triturus alpestris (Amphibia: Caudata) (2000)

Denoël, Mathieu, Joly, Pierre

Current theories on the evolution of paedomorphosis suppose that several ontogenetic pathways have appeared according to different selective pressures. The aim of this study was to find out whether...

A penalized likelihood approach for a progressive three-state model with censored and truncated data: application to AIDS. (1999)

Joly, Pierre, Commenges, Daniel

We consider the estimation of the intensity and survival functions for a continuous time progressive three-state semi-Markov model with intermittently observed data. The estimator of the intensity...

PHMPL: a computer program for hazard estimation using a penalized likelihood method with interval-censored and left-truncated data. (1999)

Joly, Pierre, Letenneur, Luc, Alioum, Ahmadou, Commenges, Daniel

The Cox model is the model of choice when analyzing right-censored and possibly left-truncated survival data. The present paper proposes a program to estimate the hazard function in a proportional...

A penalized likelihood approach for a progressive three-state model with censored and truncated data: application to AIDS. (1999)

Joly, Pierre, Commenges, Daniel

We consider the estimation of the intensity and survival functions for a continuous time progressive three-state semi-Markov model with intermittently observed data. The estimator of the intensity...

PHMPL: a computer program for hazard estimation using a penalized likelihood method with interval-censored and left-truncated data. (1999)

Joly, Pierre, Letenneur, Luc, Alioum, Ahmadou, Commenges, Daniel

The Cox model is the model of choice when analyzing right-censored and possibly left-truncated survival data. The present paper proposes a program to estimate the hazard function in a proportional...

A penalized likelihood approach for a progressive three-state model with censored and truncated data: application to AIDS. (1999)

Joly, Pierre, Commenges, Daniel

We consider the estimation of the intensity and survival functions for a continuous time progressive three-state semi-Markov model with intermittently observed data. The estimator of the intensity...

PHMPL: a computer program for hazard estimation using a penalized likelihood method with interval-censored and left-truncated data. (1999)

Joly, Pierre, Letenneur, Luc, Alioum, Ahmadou, Commenges, Daniel

The Cox model is the model of choice when analyzing right-censored and possibly left-truncated survival data. The present paper proposes a program to estimate the hazard function in a proportional...

A penalized likelihood approach for arbitrarily censored and truncated data: application to age-specific incidence of dementia. (1998)

Joly, Pierre, Commenges, Daniel, Letenneur, Luc

The Cos model is the model of choice when analyzing survival data presenting only right censoring and left truncation. There is a need for methods that can accommodate more complex observation...

A penalized likelihood approach for arbitrarily censored and truncated data: application to age-specific incidence of dementia. (1998)

Joly, Pierre, Commenges, Daniel, Letenneur, Luc

The Cos model is the model of choice when analyzing survival data presenting only right censoring and left truncation. There is a need for methods that can accommodate more complex observation...

Clutch size, egg survival and migration distance in the agile frog (Rana dalmatina) in a floodplain (1998)

Ponsero, Alain, Joly, Pierre

In animals with complex life cycles, the cost of migration among habitats has to be balanced by optimization of growth and survival within each life-stage habitat. In this context, migration distance...

Clutch size, egg survival and migration distance in the agile frog (Rana dalmatina) in a floodplain (1998)

Ponsero, Alain, Joly, Pierre

In animals with complex life cycles, the cost of migration among habitats has to be balanced by optimization of growth and survival within each life-stage habitat. In this context, migration distance...

A penalized likelihood approach for arbitrarily censored and truncated data: application to age-specific incidence of dementia. (1998)

Joly, Pierre, Commenges, Daniel, Letenneur, Luc

The Cos model is the model of choice when analyzing survival data presenting only right censoring and left truncation. There is a need for methods that can accommodate more complex observation...

Choice between Semi-parametric Estimators of Markov and Non-Markov Multi-state Models from Coarsened Observations

DANIEL COMMENGES, PIERRE JOLY, ANNE GÉGOUT-PETIT, BENOIT LIQUET

We consider models based on multivariate counting processes, including multi-state models. These models are specified semi-parametrically by a set of functions and real parameters. We consider...

Joint modelling of multivariate longitudinal outcomes and a time-to-event: A nonlinear latent class approach

Proust-Lima, Cécile, Joly, Pierre, Dartigues, Jean-François, Jacqmin-Gadda, Hélène

A joint model based on a latent class approach is proposed to explore the association between correlated longitudinal quantitative markers and a time-to-event. A longitudinal latent class model...