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MICCAI
2002
Springer
16 years 21 days ago
Incorporating Non-rigid Registration into Expectation Maximization Algorithm to Segment MR Images
Abstract. The paper introduces an algorithm which allows the automatic segmentation of multi channel magnetic resonance images. We extended the Expectation Maximization-Mean Field ...
Kilian M. Pohl, William M. Wells III, Alexandre Gu...
STOC
2006
ACM
131views Algorithms» more  STOC 2006»
16 years 3 days ago
On maximizing welfare when utility functions are subadditive
We consider the problem of maximizing welfare when allocating m items to n players with subadditive utility functions. Our main result is a way of rounding any fractional solution...
Uriel Feige
WCNC
2008
IEEE
15 years 6 months ago
Adaptive Tuning of MIMO-Enabled 802.11e WLANs with Network Utility Maximization
— The IEEE 802.11-based wireless local area networks (WLANs) are widely used for high-speed wireless data access. With the recent 802.11e quality-of-service (QoS) extension, real...
Yuxia Lin, Vincent W. S. Wong
ICC
2007
IEEE
15 years 6 months ago
Maximal Ratio Combining in Cellular MIMO-CDMA Downlink Systems
——In this paper, we first analyze the performance of Maximal Ratio Combining (MRC) scheme for Multiple input multiple output (MIMO) in an interference-limited CDMA cellular sy...
Jing Ma, Yingjun Zhang, Xin Su, Yan Yao
VTC
2007
IEEE
15 years 6 months ago
MIMO Downlink Weighted Sum Rate Maximization with Power Constraints per Antenna Groups
Abstract— We consider a single-cell multiple-input multipleoutput (MIMO) downlink channel where linear transmission and reception strategy is employed. The base station (BS) tran...
Marian Codreanu, Antti Tölli, Markku J. Juntt...