نتایج جستجو برای: performance diversity

تعداد نتایج: 1224784  

2013
Georg Nebehay Walter Chibamu Peter R. Lewis Arjun Chandra Roman P. Pflugfelder Xin Yao

We present a novel analysis of the state of the art in object tracking with respect to diversity found in its main component, an ensemble classi er that is updated in an online manner. We employ established measures for diversity and performance from the rich literature on ensemble classi cation and online learning, and present a detailed evaluation of diversity and performance on benchmark seq...

2004
Wei Mo Zhengdao Wang

We present a study on the end-to-end performance of a cooperative diversity system over random fading channels at high signal-to-noise ratio (SNR). The performance criteria we consider are the average symbol error probability (SEP) and outage probability. At high SNR, both average SEP and outage probability can be characterized by two parameters: the diversity and coding gains. We provide analy...

2015
Darline Augustine Kisha A. Jones

This study examines the effects of gender diversity on economic performance within the microfinance industry. We use ROA to capture financial performance and OpEx to capture operating efficiency. We measure gender diversity at two hierarchical levels: gender diversity within the Board represents the decision-making level; gender composition within the rank of loan officers embodies the operatio...

2004
K. Takeda T. Itagaki

In a frequency-selective fading channel, the performance of non-spread-spectrum singlecarrier (SC) transmission degrades significantly due to severe intersymbol interference (ISI). The joint use of space–time transmit diversity (STTD), receive antenna diversity and frequency-domain minimum mean square error (MMSE) equalisation in non-spread SC transmission is studied. Space–time encoding and de...

1993
Uwe Lambrette

Often mobile radio channels encounter severe fading obstructions. A link stabilization may be achieved using diversity. In this contribution, a selection diversity technique for MSK allowing synchronization as well is proposed. With the aid of characteristic functions, its properties are derived. Using both analysis and simulation, the criteria are compared and show similar performance. Both cr...

2008
Jaime Newell Likoebe M. Maruping Cynthia K. Riemenschneider Lionel P. Robert

Virtual teams (VTs) are increasingly being employed by organizations, presenting managers and researchers with challenges that collocated teams do not face. VTs are likely to be diverse and lack opportunities to readily communicate personal information to build relationships. Research on team diversity shows mixed results regarding the impact of diversity on team integration and performance, wi...

2011
Shuo Wang

This thesis studies the diversity issue of classification ensembles for class imbalance learning problems. Class imbalance learning refers to learning from imbalanced data sets, in which some classes of examples (minority) are highly under-represented comparing to other classes (majority). The very skewed class distribution degrades the learning ability of many traditional machine learning meth...

Journal: :IEEE Trans. Signal Processing 2002
Rohit U. Nabar Helmut Bölcskei Vinko Erceg David Gesbert Arogyaswami Paulraj

Multiple-input multiple-output (MIMO) antenna systems employ spatial multiplexing to increase spectral efficiency or transmit diversity to improve link reliability. The performance of these signaling strategies is highly dependent on MIMO channel characteristics, which, in turn, depend on antenna height and spacing and richness of scattering. In practice, large antenna spacings are often requir...

2002
Thomas Kochan Katerina Bezrukova Robin Ely Susan Jackson Aparna Joshi Karen Jehn Jonathan Leonard David Levine David Thomas

Since 1996, a group of industry chief executives and human resource professionals have been working together under the auspices of a nonprofit organization called the Business Opportunities for Leadership Diversity (BOLD) Initiative to help American corporations learn how to leverage their cultural diversity for competitive advantage. These leaders espouse the now popular “business case” for di...

Journal: :International Journal of Agriculture and Biology 2016

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