Mock LISA Data Challenge
In support of the Laser Interferometer Space Antenna (LISA) gravitational wave
observatory, we are conducting several rounds of mock data challenges.
The LISA Mock Data Challenges were proposed and discussed at meetings organized by the US and European LISA Project that were attended by a broad cross section of the international gravitational-wave community. These challenges are meant to be blind tests, but not really a contest.These serve the dual purposes of fostering the development of LISA data analysis tools and capabilities, and of demonstrating the technical readiness already achieved by the gravitational-wave community in distilling a rich science payoff from the LISA data output.
The Mock LISA Data Challenge (MLDC) Taskforce has been working since
2006 to formulate challenge problems of maximum efficacy, to establish
criteria for the evaluation of the analyses, to develop standard
models of the LISA mission (orbit, noises) and of the LISA sources
(waveforms, parameterization), to provide computing tools such as LISA
response simulators, source waveform generators, and a Mock Data
Challenge file format, and more generally to provide any technical
support necessary to the challengers, including moderated discussion
forums and a software repository.
The challenges involve the distribution of several datasets, encoded
in a simple standard format, and containing combinations of realistic
simulated LISA noise with the signals from one or more LISA
gravitational-wave sources of parameters unknown to the challenge
participants. The first round of challenges focused on parameter
estimation for examples of several sources in otherwise clean
noise. Subsequent challenge datasets, have addressed increasingly
ambitious data-analysis problems. Round 2, completed in 2007, focused
on the global analysis problem. A re-issue of challenge 1, called
Round 1B, also ran in 2007 to provide an easy opportunity for new
groups to develop analysis codes. A similar challenge, Round 1C,
oriented toward students of gravitational-wave astronomy, is ongoing.
Round 3, with new sources and source models finished in Spring 2009.
The current challenge Round 4 returns to the global analysis problem,
this time with the richer set of sources developed for Round3.
The deadline for Round 4 entries will be in late fall 2010.
WHAT'S NEW: |
- Challenge 4 posted.
Datasets now available.
(Nov 20, 2009).
- Challenge 1C posted.
(Oct 18, 2009).
- Challenge 3 concluded.
(May 1, 2009).
- Challenge 3.5: Reissued.
Discard earlier data.
(Mar 27, 2009).
- Round 3: Reissued.
Discard earlier challenge data.
(Apr 4, 2008).
- Round 3: Corrections
applied to datasets.
(Mar 12, 2008).
- Round 3 Challenge
datasets now available.
(Mar 3, 2008).
- Round 3 begins.
Training datasets available for testing.
(Jan 14, 2008).