Dr Didier Leibovici 1

Doctorate in Applied Mathematics University of Montpellier II >

University of Leicester > University of Greenwich > Sanofi-Recherche Montpellier > fMRIB University of Oxford

> post-master in Information & computing science

> IRD - Maison de la Télédétection (Remote Sensing House)… 

interests in modelling & analysis of spatio-temporal dynamics:

• regional scale: ecoregion clustering (climatic, ecologic and societies)• local scale: landscape changes (land cover/land use and integrated modelling) • changing scales extrapolation

Dr Didier Leibovici 2

Doctorate of Applied Mathematics UMII > University of Leicester >

auto-correlations and spatial structures, e.g. long time series of Asthma mortality INSERM Montpellier (1990 - 1994)

«Repeated Measures Factors and multidimensionnal Analysis: application to a HIV+ follow-up study, SEROCO» (thesis defended in 1993)

INSERM Montpellier (1990 - 1994)

Cognitive ageing and risk factors (the longitudinal study Eugéria) INSERM & Department of Epidemiology, Leicester (post-doc 1994-1995)

Epidemiology, longitudinal, linear model, logistic model, automatic clustering variance analysis: univariate,multivariate, tensovariate

from spatio-temporal data analysis …

9 papers, 2 chapters, 7 communications, 1 package, 1 thesis

Dr Didier Leibovici 3

> University of Greenwich U.K. > Sanofi-Recherche Montpellier >

fMRIB University of Oxford U.K. >

tensorial decomposition (PTAk) in infinite dimension, multivariate distribution analysis University of Greenwich (Research fellow 1995-1996)

multiway tables analysis and quantified-EEG in pharmaco-dynamic studies (phase IIa) Sanofi-Recherche (Statistician Researcher 1997-1999)

models and analysis of multi-subject fMRI brain imaging experiments University of Oxford (Research fellow 1999-2001)

functional spaces, multiple contingency tables, spatial signal, repeated observations, tensor analysis, image sequences, mixed model, multiple comparisons and Gaussian Random fields

6 papers, 3 abstracts, 5 communications, 2 packages, 6 reports

from spatio-temporal data analysis …

Dr Didier Leibovici 4

PTAk

with time and space penalisations

Brain Space Time Space Subject Space

B

T

S

standard

Dr Didier Leibovici 5

> post-master (DESS) in Information & Computing sciences

> IRD (Research Institute for Development) - Maison de la Télédétection (Remote Sensing House) …

Information Systems, UML modelling, data structures algorithms, java, www University of Montpellier II (2001-2002)

spatialised environmental modelling: SIEL (ROSELT program)Système d’Information de l’Environnement Local : GIS database + models

Réseau d’Observatoires de Surveillance Ecologique à Long Termes: 14 countries (circum-sahara),

30 observatories as research and operational platform

IRD US «Désertification» (since 2002)

coupling models for landscape dynamics (DeSurvey-IP FP6 program) Desertification Survey : 40 European teams, , 4 in Africa 1 in China, 1 in Chile

IRD US «Désertification» (since 2005)

object conception, geomatics, GIS, spatialisation algorithms, Multi-Agent System, resources/usages dynamics, arid and semi arid zones, network of observatories approach, integrated modelling

to geomatic modelling of dynamics

6 papers (in progress), 1 abstract, 4 communications, 2 packages, 2 reports

Dr Didier Leibovici 6

to geomatic modelling of dynamics

exploite les ressources autour

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est situé dans1..1

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est appliquée sur

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se décline en1..*

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définit une production

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est appliqué0..*

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est paramétré par

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est composé

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est appliqué

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est qualifié

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utilise

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ParametrePratiqueCombineeNomParamValParam

: lParamPrat: float

PratiqueCombineeIdPratCombDescPratCombDateDebValPratDateFinValPrat

: int: String: Date: Date

GroupeAgentsGaIdNomGroupePrecisionPopAnneePopTypeAgent

: String: String: String: int: String

CentreActiviteCAIdNomCentreAgeMinAgeMaxTypCentDecisTypSysProductdSeuil

: String: String: int: int: lTypeCentDecis: lTypeSysProduct: int

ProducSolPratiqueProductAgriProductFore

: float: float

AptitudeSolcodeAptitudeDescAptitude

: int: String

CteObservatoireDateDebValCteDateFinValCtecodeObservatoirenomObservatoireCteprefBoisZhecCteConsoCultuCteConsoFourCteConsoBoisCteSurfSemCteCommerceAgriCteCommercePastCteCommerceForeCteSemenceCteConsoAniCteStockForeCteStockPast

: Date: Date: lCodeObservatoire: String: float: float: float: float: float: float: float: float: float: float: float: float

TypeOccupationSolNomOccuppourcent

: lTypeOccupationSol: float

PeriodeCADateDebCADateFinCA

: Date: Date

PPL

POLY

LIGN

motif de type point, polygone, ligne

motif de type ligne

PPL

POLY

POLY

TypeCalculNomCalculNomMethod

: lNomCalcul: lNomMethode

UPcodeUPnomUnit

: int: StringProducUP

SaisonMStotalMSherbaMSlignFeuiBMSlignFeuiHMSlignTige_4MSlignTige4_

: ISaison: float: float: float: float: float: float

ParametreSaisonNomParamSaisonValParam

: lParamSaison: lSaison: float

ProducPastoPratiqueProductElevage : float

QualitePastoralecodeQualiteDescQualite

: int: String

motif de type polygone

GroupeStrategiqueIdGroupStratDescrStrat

: lGroupStrat: String

POLY

POLY

SIELLocal Environmental Information System

Dr Didier Leibovici 7

PROJECTION of DEMOGRAPHIC TRENDS:

SCENARIO 1

LEVERAGE * OF PRESSURE ON RESOURCES: SCENARIO 2

*Stopping wood energy and stable population

PROJECTION of DEMOGRAPHIC TRENDS and DROUGHT: SCENARIO 3

PROSPECTIVES horizon 2004 : SIMULATIONS OF SCENARIIPROSPECTIVES horizon 2004 : SIMULATIONS OF SCENARII

DIAGNOSTIC 1991-1995 : LAND DEGRADATION RISKDIAGNOSTIC 1991-1995 : LAND DEGRADATION RISK

MultiUsage Index of Land Degradation Risk

< 5

]5 – 15]

]15 – 25]

]25 – 50]

]50 – 75]

]75 – 100]

> 100

No risk

Very low risk

Low risk

High risk

Very high risk

Risk maximum

Representative of an extensive agro-pastoral system in sahelian zone

agricole Usage

Vegetation Balances by usage

pastoral Usage

wood Usage

< 0

0

0 -500

500 – 1000

> 1000(Disponibility – Extraction in kg DM /ha)

SIEL Banizoumbou (NER)Banizoumbou (NER)

Dr Didier Leibovici 8

1st author

A method to Classify Ecoclimatic Arid and Semi-Arid Zones in Circum Saharian Africa Using Dynamics of Multiple Indicators. (GIScience and Remote Sensing)

Ecoregion Delineation Model for Circum-Sahara ecological Monitoring of Desertification. (International Journal of Geographical Information Science)

A Landscape Modelling decision tool for desertification assessment using a Local Environmental Information System(SIEL). (Environmental Modelling & Software)

co- author

Concepts and Methods to restructure the landscape according to resources/uses interactions. (Landscape Ecology)

Integrated environmental and socio-economic modeling using SIEL for desertification monitoring and assessment in the observatory of Menzel Habib (South Tunisia). (Journal of Arid Environments)

First results on assessing and predicting anthropogenic pressure on vegetation using SIEL/ROSELT at the observatory of Ferlo (Senegal). (Arid land Research and Management)

In progress

Dr Didier Leibovici 9

geospatial interoperability for spatio-temporal dynamics

ROSELT general approach www.roselt-oss.org

DeSurvey coupling or chaining models (DeSs)www.desurvey.net

SIEL integrated modelling GIS toolwww.roselt-oss.org

MDweb metadata cataloguing (advanced and cartographic queries)www.mdweb-project.org

- ISO 19115- distributed searching «service» (Z3950 service ISO 23950)- semantic expansion searching (spatial and disciplines ontologies)- semantic network building

> work related to GEOSS objectives

Dr Didier Leibovici 10

geospatial interoperability for spatio-temporal dynamics

model building system aspects:integrated modelling and SOA

GEOSS user orientated WRS …

model building interface facilities intelligence of it:

semantic and metadata for services

WRS, UDDI …

appropriate catalogs for GEOSS

towards Multi-Agent System modelling

technical aspects:SOA what about performance for GEOSS ?

GeoServer (using GeoTools) and WFS –T (transactional)

WPS for models (recent OGC adoption)

links with www.openMI.org (HarmonIT FP5)

> research thoughts towards GEOSS

Dr Didier Leibovici 11

Dr Didier Leibovici 12

teaching, training and supervising…

Masters courses:Multivariate Methods Module at MSc level, University of Greenwich,

(1996)Geomatic Spatial operators at Master level, University of Montpellier II,

(2004, 2005, 2006,…) regular training seminars: seminar Series on linear model and fMRI studies, University of Oxford,

(1999, 2000) training sessions and workshops sessions : of 1-2 weeks on GIS Environmental modelling (researchers from ROSELT

network), IRD – Maison de la télédétection (2003, 2004, 2005, …)

Supervising Master students research projects- recent examples:

Geomatics: How representative are ROSELT Observatories:ecoregions 2004Environment: Modelling Pastoral Systems for the SIEL-tool 2005Information Computing: Automatic Production of metadata within ArcGIS 2004

Database schema migration 2005