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On 20-21 May 2000, a TMR mini-workshop on "Optimal methods for extracting
information from galaxy spectra in large redshift surveys" was held on the
island of Porquerolles, about 50 km from Marseille.
The idea was to bring together people expertise in 
population synthesis, theoretical models of galaxy formation, optimal
methods for extracting information from complicated data sets, and
large surveys of galaxies  at low and high redshifts, to talk about how
to make the best use of redshift survey spectra for addressing a
variety of issues in galaxy formation.

Organizers: Stephane Charlot (IAP/MPA), Guinevere Kauffmann (MPA), Ofer Lahav (IoA),
            Olivier le Fevre (Marseille)


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                 PORQUEROLLES MEETING SCHEDULE


Saturday, 20 May 

 9:15   Introductory Remarks  (Kauffmann) 10 min 

 9:30   SESSION 1 ---   What are the best spectral indicators for deriving 
                  the physical parameters of galaxies?                   

                  Review by Stephane Charlot (30 min)
                  
                  Discussion led by experts: (Aragon, Bressan, 
                  Charlot, Longhetti, Jiminez...) (1 hr)

11-11:30   COFFEE


11:30   SESSION 2 ---   Algorithms for optimal extraction of information from 
                  large spectroscopic surveys

                  Review by Ofer Lahav  (30 min)

                  Discussion led by experts: (Heavens, Lahav, Slonim, 
                   Somerville, Madgwick...) (1 hr)

1-3 pm     LUNCH


3-5 pm  SESSION 3 -- Reports on projects: algorithms and classification  
                   (talks: 20 min each)


             Alan Heavens: Extracting physical parameters from spectral surveys 
                               using massive data compression

             Darren Madgwick: Automated spectral classification of the 2dFGRS

             Alfonso Aragon: Principal component analysis of synthetic galaxy
                                 spectra

             Noam Slonim: The information bottleneck method for spectral 
                              classification

             Rachel Somerville: Bottlenecks, 2dF and SAMs

             Remi Cabanac: The Large Zenith Telescope Survey: Spectral classification
                       with  PCA 


Sunday, 21 May 


 9-11 am  SESSION 3 - (continued) Project reports in ascending redshift 
                     (talks: 20 min each)

             Cedric Lacey: Modelling galaxy spectra from the UV to the sub-mm 

             Sandro Bressan - Recent SFR history in starburst galaxies

             Marcella Longhetti: Star formation estimators in galaxies

             Steve Maddox: Spectral Properties in the SAPM

             Paul Hewett: Spectroscopic properties of field ellipticals

             Michael Balogh : Observations of H-alpha in moderate redshift clusters

11:00- 11:30    COFFEE

11:30- 12:30 Laurence Tresse: ISAAC H-alpha spectroscopy at z=0.6-1.1

             Kurt Adelberger: A Balmer-break survey of galaxies at z=1

             Andrew Bunker: Future studies of star formation at high z 


12:30 - 2pm     LUNCH




2:00-3:30 pm   SESSION 4 -- Future very large spectroscopic surveys and their
               characteristics

                 2dF  (Keith Taylor)         (20 min)
                 SLOAN (Simon White)         (20 min)
                 VIRMOS (Olivier Le Fevre)   (20 min)
                 GALEX (Marie Treyer)        (20 min)

3:30-4:00 pm   COFFEE



4:00-5:00 pm   SESSION 5 --  Discussion. How do we bring this all together and 
                make progress? (Discussion Leader: Olivier Le Fevre)