Chartrand - Revision history

68.35.151.147 at 23:16, 7 August 2008

2008-08-07T23:16:45Z

←Older revision		Revision as of 23:16, 7 August 2008
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	= Rick Chartrand =		= Rick Chartrand =
-	[[Image:Chartrand.jpg\|thumb\|right\|450px\|Rick Chartrand~~, ca. 2008~~]]	+	[[Image:Chartrand.jpg\|thumb\|right\|450px\|Rick Chartrand]]
	[http://math.lanl.gov/~rick Rick Chartrand]  was born in Winnipeg, Manitoba in 1971, and lived through		[http://math.lanl.gov/~rick Rick Chartrand]  was born in Winnipeg, Manitoba in 1971, and lived through
	22 bitterly-cold winters and mosquito-infested summers before finally		22 bitterly-cold winters and mosquito-infested summers before finally

68.35.151.147 at 23:14, 7 August 2008

2008-08-07T23:14:26Z

←Older revision		Revision as of 23:14, 7 August 2008
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	== Nonconvex Compressive Sensing ==		== Nonconvex Compressive Sensing ==
-	[http://www.convexoptimization.com/TOOLS/Chartrand1.pdf Presented by Rick Chartrand ~~(joint work with Valentina Staneva, Wotao Yin, & Kevin Vixie)~~ at the SIAM Conference on Imaging Science 2008, San Diego, California, July 7, 2008]	+	[http://www.convexoptimization.com/TOOLS/Chartrand1.pdf Presented by Rick Chartrand at the SIAM Conference on Imaging Science 2008, San Diego, California, July 7, 2008]

68.35.151.147 at 23:12, 7 August 2008

2008-08-07T23:12:01Z

←Older revision		Revision as of 23:12, 7 August 2008
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	the University of Manitoba in 1993, receiving the Governor General's		the University of Manitoba in 1993, receiving the Governor General's
	Medal for the best graduating bachelor's student in the		Medal for the best graduating bachelor's student in the
-	province of Manitoba.	+	province of Manitoba. He received the M.A. and Ph.D. degrees in
-		+
-	He received the M.A. and Ph.D. degrees in	+
	Mathematics from the University of California, Berkeley, in 1994 and		Mathematics from the University of California, Berkeley, in 1994 and
-	1999 respectively.	+	1999 respectively. His thesis work was in the area of Hilbert spaces of
-		+
-	His thesis work was in the area of Hilbert spaces of	+
	holomorphic functions, a field without useful applications, a fact he		holomorphic functions, a field without useful applications, a fact he
-	was once proud of.	+	was once proud of. He held Assistant Professor positions at
-		+
-	He held Assistant Professor positions at	+
	Middlebury College and the University of Illinois at Chicago before		Middlebury College and the University of Illinois at Chicago before
	coming to Los Alamos National Laboratory in 2003 and beginning to		coming to Los Alamos National Laboratory in 2003 and beginning to
-	undertake useful work.	+	undertake useful work. He is now a Technical Staff Member in the Theoretical Division.
-		+
-	He is now a Technical Staff Member in the Theoretical Division.	+


	Rick's current research is in the field of compressive		Rick's current research is in the field of compressive
	sensing, working on both algorithms for sparse signal reconstruction		sensing, working on both algorithms for sparse signal reconstruction
-	and the mathematical justification for these methods.	+	and the mathematical justification for these methods. His particular focus has been on nonconvex optimization methods, demonstrating both
-		+
-	His particular focus has been on nonconvex optimization methods, demonstrating both	+
	that these approaches can recover signals from fewer methods than the		that these approaches can recover signals from fewer methods than the
	more typical convex approaches, and that simple algorithms can be		more typical convex approaches, and that simple algorithms can be
	reliably successful, despite the presence of huge numbers of local		reliably successful, despite the presence of huge numbers of local
-	minima.	+	minima. His paper with Wotao Yin presents test results that show
-		+
-	His paper with Wotao Yin presents test results that show	+
	successful reconstructions of sparse signals from fewer random		successful reconstructions of sparse signals from fewer random
	measurements than any other method published to date.		measurements than any other method published to date.
Line 45:		Line 33:

	== Nonconvex Compressive Sensing ==		== Nonconvex Compressive Sensing ==
-	[http://www.convexoptimization.com/TOOLS/Chartrand1.pdf Presented by Rick Chartrand with Valentina Staneva, Wotao Yin, & Kevin Vixie at the SIAM Conference on Imaging Science 2008, San Diego, California, July 7, 2008]	+	[http://www.convexoptimization.com/TOOLS/Chartrand1.pdf Presented by Rick Chartrand (joint work with Valentina Staneva, Wotao Yin, & Kevin Vixie) at the SIAM Conference on Imaging Science 2008, San Diego, California, July 7, 2008]

Ranjelin at 21:36, 7 August 2008

2008-08-07T21:36:14Z

←Older revision		Revision as of 21:36, 7 August 2008
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	= Rick Chartrand =		= Rick Chartrand =
-	[[Image:Chartrand.jpg\|thumb\|right\|450px\|Rick Chartrand ca. 2008]]	+	[[Image:Chartrand.jpg\|thumb\|right\|450px\|Rick Chartrand, ca. 2008]]
	[http://math.lanl.gov/~rick Rick Chartrand]  was born in Winnipeg, Manitoba in 1971, and lived through		[http://math.lanl.gov/~rick Rick Chartrand]  was born in Winnipeg, Manitoba in 1971, and lived through
	22 bitterly-cold winters and mosquito-infested summers before finally		22 bitterly-cold winters and mosquito-infested summers before finally

Ranjelin at 21:35, 7 August 2008

2008-08-07T21:35:29Z

←Older revision		Revision as of 21:35, 7 August 2008
Line 42:		Line 42:
	Previous research		Previous research
	interests include functional analysis and image processing.		interests include functional analysis and image processing.
		+

	== Nonconvex Compressive Sensing ==		== Nonconvex Compressive Sensing ==
	[http://www.convexoptimization.com/TOOLS/Chartrand1.pdf Presented by Rick Chartrand with Valentina Staneva, Wotao Yin, & Kevin Vixie at the SIAM Conference on Imaging Science 2008, San Diego, California, July 7, 2008]		[http://www.convexoptimization.com/TOOLS/Chartrand1.pdf Presented by Rick Chartrand with Valentina Staneva, Wotao Yin, & Kevin Vixie at the SIAM Conference on Imaging Science 2008, San Diego, California, July 7, 2008]

Ranjelin at 21:30, 7 August 2008

2008-08-07T21:30:08Z

←Older revision		Revision as of 21:30, 7 August 2008
Line 1:		Line 1:
	= Rick Chartrand =		= Rick Chartrand =
-		+	[[Image:Chartrand.jpg\|thumb\|right\|450px\|Rick Chartrand ca. 2008]]
	[http://math.lanl.gov/~rick Rick Chartrand]  was born in Winnipeg, Manitoba in 1971, and lived through		[http://math.lanl.gov/~rick Rick Chartrand]  was born in Winnipeg, Manitoba in 1971, and lived through
	22 bitterly-cold winters and mosquito-infested summers before finally		22 bitterly-cold winters and mosquito-infested summers before finally

Dattorro at 21:36, 5 August 2008

2008-08-05T21:36:41Z

←Older revision		Revision as of 21:36, 5 August 2008
Line 42:		Line 42:
	Previous research		Previous research
	interests include functional analysis and image processing.		interests include functional analysis and image processing.
		+
		+	== Nonconvex Compressive Sensing ==
		+	[http://www.convexoptimization.com/TOOLS/Chartrand1.pdf Presented by Rick Chartrand with Valentina Staneva, Wotao Yin, & Kevin Vixie at the SIAM Conference on Imaging Science 2008, San Diego, California, July 7, 2008]

Dattorro at 21:32, 5 August 2008

2008-08-05T21:32:12Z

←Older revision		Revision as of 21:32, 5 August 2008
Line 1:		Line 1:
	= Rick Chartrand =		= Rick Chartrand =

-	Rick Chartrand was born in Winnipeg, Manitoba in 1971, and lived through	+	[http://math.lanl.gov/~rick Rick Chartrand]  was born in Winnipeg, Manitoba in 1971, and lived through
	22 bitterly-cold winters and mosquito-infested summers before finally		22 bitterly-cold winters and mosquito-infested summers before finally
	leaving.		leaving.

Dattorro at 21:25, 5 August 2008

2008-08-05T21:25:24Z

←Older revision		Revision as of 21:25, 5 August 2008
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		+	= Rick Chartrand =
		+
	Rick Chartrand was born in Winnipeg, Manitoba in 1971, and lived through		Rick Chartrand was born in Winnipeg, Manitoba in 1971, and lived through
	22 bitterly-cold winters and mosquito-infested summers before finally		22 bitterly-cold winters and mosquito-infested summers before finally

Dattorro: New page: Rick Chartrand was born in Winnipeg, Manitoba in 1971, and lived through 22 bitterly-cold winters and mosquito-infested summers before finally leaving. Rick received the B.Sc.(Hons.) degr...

2008-08-05T21:24:53Z

New page: Rick Chartrand was born in Winnipeg, Manitoba in 1971, and lived through 22 bitterly-cold winters and mosquito-infested summers before finally leaving. Rick received the B.Sc.(Hons.) degr...

New page

Rick Chartrand was born in Winnipeg, Manitoba in 1971, and lived through
22 bitterly-cold winters and mosquito-infested summers before finally
leaving.

Rick received the B.Sc.(Hons.) degree in Mathematics from
the University of Manitoba in 1993, receiving the Governor General's
Medal for the best graduating bachelor's student in the
province of Manitoba.

He received the M.A. and Ph.D. degrees in
Mathematics from the University of California, Berkeley, in 1994 and
1999 respectively.

His thesis work was in the area of Hilbert spaces of
holomorphic functions, a field without useful applications, a fact he
was once proud of.

He held Assistant Professor positions at
Middlebury College and the University of Illinois at Chicago before
coming to Los Alamos National Laboratory in 2003 and beginning to
undertake useful work.

He is now a Technical Staff Member in the Theoretical Division.

Rick's current research is in the field of compressive
sensing, working on both algorithms for sparse signal reconstruction
and the mathematical justification for these methods.

His particular focus has been on nonconvex optimization methods, demonstrating both
that these approaches can recover signals from fewer methods than the
more typical convex approaches, and that simple algorithms can be
reliably successful, despite the presence of huge numbers of local
minima.

His paper with Wotao Yin presents test results that show
successful reconstructions of sparse signals from fewer random
measurements than any other method published to date.

Previous research
interests include functional analysis and image processing.