Yongfei Yan feiaa

## projection_simplex.py
"""
Implements three algorithms for projecting a vector onto the simplex: sort, pivot and bisection.

For details and references, see the following paper:

Large-scale Multiclass Support Vector Machine Training via Euclidean Projection onto the Simplex
Mathieu Blondel, Akinori Fujino, and Naonori Ueda.
ICPR 2014.
http://www.mblondel.org/publications/mblondel-icpr2014.pdf
	"""
	Implements three algorithms for projecting a vector onto the simplex: sort, pivot and bisection.

	For details and references, see the following paper:

	Large-scale Multiclass Support Vector Machine Training via Euclidean Projection onto the Simplex
	Mathieu Blondel, Akinori Fujino, and Naonori Ueda.
	ICPR 2014.
	http://www.mblondel.org/publications/mblondel-icpr2014.pdf