October 1997

September 1998

October 1998

February 1999

March 1999

May 1999

September 1999

November 1999

December 1999

February 2000

March 2000

April 2000

September 2000

October 2000

November 2000

December 2000

February 2001

March 2001

October 2001

November 2001

December 2001

March 2002

October 2002

November 2002

December 2002

February 2003

March 2003

April 2003

September 2003

October 2003

November 2003

February 2004

September 2004

December 2004

September 2005

November 2005

November 2006

December 2006

text-partial least-squares regression

March 2007

April 2007

October 2007

December 2007

September 2008

September 2009