N A W G
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   NRAO Algorithms Working Group Meeting - DRAFT MINUTES

Date: 2005-5-11 (Wednesday)
Time: 1300 MDT = 1500 EDT
Video Hub: CV-conf (others call in)
Rooms: SOC317/CV311/GB241/TUCN505

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Send additions and corrections to smyers

1. Organizational issues

   o solicitation of topics for future meetings (Steve)

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     PLEASE LET ME KNOW IF YOU HAVE A TOPIC YOU WANT TO DISCUSS!
     This can be fairly off-the-cuff or informal, maybe just a
     mention of some technique you heard about and thought might
     be worthwhile investigating.

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2. Project-related (ALMA, EVLA, GBT, VLBA, &c.) issues

   o no project-related contributed topics this month (but see Main Event).

3. ***Short Topics*** - Presentations and Discussion Items

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   o Steve Myers - Some thoughts on Monte-Carlo methods for
                   multiscale imaging/deconvolution 

     This was inspired by discussions we had with last week's AOC Colloquium
     speaker Ben Wandelt.

     NOTE: If you've not checked it out before, Google Scholar is a great
     way to find literature on a subject (try "sequential mcmc" or 
     "reversible jump mcmc" for example).
     http://scholar.google.com/

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4. ***Main Event*** - Presentations and Discussion Items

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   o Sanjay Bhatnagar - A proposed "roadmap" for EVLA algorithm development.

     PDF versions of presentations:

     http://www.aoc.nrao.edu/~smyers/nawg/presentations/

     NAWG20050511-Sanjay-EVLAmap.pdf  - today's talk
     
     NAWG20050511-Sanjay-Aug04.pdf  - a note from Aug 2004

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5. Future events (please sign up!)

   o George Moellenbrock - an update on frequency-dependent polcal (main)
   o Walter Brisken - a proposed self-cal modification (short)

6. Relevant reading:

   o Paper & Memos:

     - Beyond the isoplanatic patch in the VLA Low-frequency Sky Survey
       (W.D. Cotton et al.)
     Abstract: http://link.aip.org/link/%3FPSISDG/5489/180/1

     - Solving for the Antenna Based Pointing Errors (Bhatnagar, Cornwell &
       Golap)
     http://www.aoc.nrao.edu/evla/geninfo/memoseries/evlamemo84.pdf

     - EVLA and SKA Computing Costs for Wide Field Imaging (Cornwell)
     http://www.aoc.nrao.edu/evla/geninfo/memoseries/evlamemo77.pdf

     - W Projection: A New Algorithm for Non-Coplanar Baselines (Cornwell, 
       Golap, Bhatnagar)
     http://www.aoc.nrao.edu/evla/geninfo/memoseries/evlamemo67.pdf

     - Effects of Atmospheric Emission Fluctuations and Gain Fluctuations on 
       Continuum Total Power Observations with ALMA (Holdaway)
     http://www.mma.nrao.edu/memos/html-memos/abstracts/abs490.html
     http://www.mma.nrao.edu/memos/html-memos/alma490/memo490.pdf
     
   o Post-processing requirements:

     - ALMA Offline Data Processing Requirements
     http://www.alma.nrao.edu/development/computing/docs/joint/0018/ALMAoffline-sw-18.pdf

     - EVLA Offline Data Processing Requirements 
     http://www.aoc.nrao.edu/~smyers/evla/evla_offline.pdf

   o GBT:

     - GBT Software Review Agenda & Presentations
     http://wiki.gb.nrao.edu/bin/view/Software/ReviewAgenda2004

     - GBT Standard Observing Modes
     http://wiki.gb.nrao.edu/bin/view/Observing/StandardObservingModes

7. Upcoming meetings and deadlines:
   o 2005 Jun 8           NAWG meeting
   o 2005 Jun 8-10        OSA Signal Recovery and Synthesis (Charlotte)
   o 2005 Jun 22-24       SKA Wide-field Imaging Workshop (Dwingeloo)

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   o NAWG Website: http://www.aoc.nrao.edu/~smyers/nawg/

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