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MD Discovery & Classification in Synoptic Surveys

This astrostatistcs working group will coordinate and pursue research on challenging informatics and statistics problems that arise in the analysis of astronomical data. The working group will focus on classes of problems that are cross-cutting, arising in diverse astrophysical applications. It will bring expertise to the collaboration from other fields that are addressing discovery and analysis challenges with large data sets. The collaboration will enable new science that would not be possible to pursue using conventional methods and algorithms.

Preliminary, Partial List of Topics:

(1) images: discovering rare objects; discovering faint objects
(2) light-curves: extracting features from them, determining which of those are best to discriminate between different classes.

All these lead to characterization & classification, and include time domain surveys, as well as data from objects like the sun.

wangyi's picture

Meeting of April 23rd

Saena will present some plots based on lightcurves.
We will also discuss the abstracts/talks for the SAMSI transition meeting.

The meeting is 12pm, EST as usual.
To join the online meeting on Webex (Now from mobile devices!)
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1. Go to https://samsi.webex.com/samsi/j.php?ED=145402212&UID=1165167462&PW=NNGVk...
2. If requested, enter your name and email address.
3. If a password is required, enter the meeting password: Ksam-wg1
4. Click "Join".
5. Follow the instructions that appear on your screen.

Meeting Date: 
April 22, 2013 - 4:55pm
wangyi's picture

Meeting of April 16th

We will have a brief meeting mainly to discuss presentation related to this groups work at the SAMSI meeting on May 20-22. So far Joey and Fabrizia have agreed to speak.

Please bring up any related points as well.

9 AM Pacific time. Google plus and Webex.

To join the online meeting on Webex (Now from mobile devices!)
-------------------------------------------------------
1. Go to https://samsi.webex.com/samsi/j.php?ED=145402212&UID=1165167462&PW=NNGVk...
2. If requested, enter your name and email address.

Meeting Date: 
April 15, 2013 - 8:12pm
wangyi's picture

LARK Bayesian Semiparametric Regression Models

gj_babu's picture

Nonparametric Function Estimation - by David Ruppert

wangyi's picture

Meeting of March 19

Due to size limitations on google hangout, we will keep webex open and majority of us can be on it and let foreign participants on google hangout (up to 10 can be on it so some of us can be on it as well). Grace can share her computer with those on google hangout.

1. David Ruppert will give a presentation on non-parametric functional estimation. Jogesh to put the PDF on SAMSI website.

2. Discussion on light curves. SaeNa has uploaded more graphs based on the light curves to Dropbox.

3. Ashish will briefly summarize the Transients and Timing meeting held recently in India.

Meeting Date: 
March 18, 2013 - 10:45am
gj_babu's picture

Functional Data Analysis -- by David Ruppert

wangyi's picture

Meeting of Feb 26th

Dear All,

We are going to meet tomorrow. Please find the agenda as follows:

Agenda for Feb 26 meeting.

1. David Ruppert will give an overview of Functional Data Analysis.

2. A general discussion of light curves. Please have a brief look at the light curves in the shared drop box (https://www.dropbox.com/sh/d9ad83ek0653n0n/ZxD1ipTi1H) before the meeting.

Jogesh

Meeting Date: 
February 25, 2013 - 12:26pm
wangyi's picture

Meeting on Feb 05

Dear All,

We are going to meet as usual at 12, on google hangout. The webex will be open for the first 15 minutes.

Best,
Grace

Meeting Date: 
February 5, 2013 - 7:48am
wangyi's picture

Meeting of Jan 29th

Dear All,

The meeting tomorrow will be about lightcurves. You can find data available at http://avyakta.caltech.edu:8080/science/SAMSI_DC/

Please note that we will talk through Google hangout but still keep our webex line open for the beginning. If you haven't used Google hangout before, you may find it helpful: http://support.google.com/plus/bin/answer.py?hl=en&answer=1349254

Since I will start the hangout, it helps if you could add me (math.wangyi@gmail.com) to your circle and also let me add you back on Google+. Thanks.

Best Regards,
Grace

Meeting Date: 
January 28, 2013 - 9:01pm
wangyi's picture

Meeting of Jan 22nd, 2013

Dear All,

We will have our first meeting with webex and please find the login info as follows. It is the same with last semester, but if you want to see details please click on 'see more on ...' below from your email or login to the SAMSI group page.

To join the online meeting (Now from mobile devices!)
-------------------------------------------------------
1. Go to https://samsi.webex.com/samsi/j.php?ED=145402212&UID=1157147287&PW=NNGVk...
2. If requested, enter your name and email address.
3. If a password is required, enter the meeting password: Ksam-wg1

Meeting Date: 
January 22, 2013 - 10:37am