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ACHIEVING COHERENCE IN PERSUASIVE DISCOURSE: A STUDY OF CHINESE ESL UNDERGRADUATES IN THE UNITED STATES
, 2013
"... ii © 2013 Weier Ye All Rights Reserved iii ..."
Skincolor modeling and adaptation
 In Proceedings of ACCV'98 (Technical Report CMUCS97146, CS department, CMU
, 1997
"... Abstract. This paper studies a statistical skincolor model and its adaptation. It is revealed that (1) human skin colors cluster in a small region in a color space; (2) the variance of a skin color cluster can be reduced by intensity normalization, and (3) under a certain lighting condition, a skin ..."
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Cited by 155 (6 self)
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Abstract. This paper studies a statistical skincolor model and its adaptation. It is revealed that (1) human skin colors cluster in a small region in a color space; (2) the variance of a skin color cluster can be reduced by intensity normalization, and (3) under a certain lighting condition, a skincolor distribution can be characterized by amultivariate normal distribution in the normalized color space. We then propose an adaptive model to characterize human skincolor distributions for tracking human faces under di erent lighting conditions. The parameters of the model are adapted based on the maximum likelihood criterion. The model has been successfully applied to a realtime face tracker and other applications. 1
WEIERSTRASS POINTS AND Z2 HOMOLOGY
"... In a recent paper [Lu], Lustig established a beautiful connection between the 6 Weierstrass points on a Riemann surface M2 of genus 2 and intersection points of closed geodesics for the associated hyperbolic metric. As a consequence, he was able to construct an action of the mapping class ..."
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In a recent paper [Lu], Lustig established a beautiful connection between the 6 Weierstrass points on a Riemann surface M2 of genus 2 and intersection points of closed geodesics for the associated hyperbolic metric. As a consequence, he was able to construct an action of the mapping class
Energyoptimal scheduling with dynamic channel acquisition in wireless downlinks
 Proc. of 46th IEEE Conf. on Dec. and Control (CDC
, 2007
"... Abstract — We consider a wireless base station serving L users through L timevarying channels. It is well known that opportunistic scheduling algorithms with full channel state information (CSI) can stabilize the system and achieve the full capacity region. However, opportunistic scheduling algorit ..."
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Cited by 20 (10 self)
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Abstract — We consider a wireless base station serving L users through L timevarying channels. It is well known that opportunistic scheduling algorithms with full channel state information (CSI) can stabilize the system and achieve the full capacity region. However, opportunistic scheduling algorithms with full CSI may not be energy efficient when the cost of channel acquisition is high and traffic rates are low. In particular, under the low traffic rate regime, it may be sufficient and more energyefficient to transmit data with no CSI, i.e., to transmit data blindly, since no power for channel acquisition is consumed. In general, we show that purely channelaware or purely channelblind strategies are not necessarily optimal, and we must consider mixed strategies. We derive a unified scheduling algorithm that dynamically chooses to transmit data with full or no CSI based on queue backlog and channel statistics. Through Lyapunov analysis, we show that the unified algorithm can stabilize the downlink with optimal power consumption. regularly may not be optimal. Guha et al. [10] investigate partial channel probing and rate allocations in a wireless server allocation problem with infinitely backlogged users. They propose a polynomial time algorithm that comes within a constant factor of optimizing a linear utility function when the costs of probing different channels are different. Work in [13] considers a similar problem and shows that a utility that is arbitrarily close to optimal can be achieved in the special case when probing costs are equal. Chang et al. [11] generalize the result in [13], and investigate properties of optimal joint partial channel probing and rate allocation policies, as well as propose a twostep lookahead algorithm which is optimal in some special cases. Kar et al. [12] study throughputachieving scheduling algorithms under the constraint that channels are only measured every T> 1 slots. I.
Inverted Edwards Coordinates
 In Applied Algebra, Algebraic Algorithms and ErrorCorrecting Codes – AAECC 2007
, 2007
"... Abstract. Edwards curves have attracted great interest for several reasons. When curve parameters are chosen properly, the addition formulas use only 10M+1S. The formulas are strongly unified, i.e., work without change for doublings; even better, they are complete, i.e., work without change for all ..."
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Cited by 18 (1 self)
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Abstract. Edwards curves have attracted great interest for several reasons. When curve parameters are chosen properly, the addition formulas use only 10M+1S. The formulas are strongly unified, i.e., work without change for doublings; even better, they are complete, i.e., work without change for all inputs. Dedicated doubling formulas use only 3M + 4S, and dedicated tripling formulas use only 9M + 4S. This paper introduces inverted Edwards coordinates. Inverted Edwards coordinates (X1: Y1: Z1) represent the affine point (Z1/X1, Z1/Y1) on an Edwards curve; for comparison, standard Edwards coordinates (X1: Y1: Z1) represent the affine point (X1/Z1, Y1/Z1). This paper presents addition formulas for inverted Edwards coordinates using only 9M + 1S. The formulas are not complete but still are strongly unified. Dedicated doubling formulas use only 3M + 4S, and dedicated tripling formulas use only 9M + 4S. Inverted Edwards coordinates thus save 1M for each addition, without slowing down doubling or tripling.
IPMU140267 The Vertical, the Horizontal and the Rest: — anatomy of the middle cohomology of CalabiYau fourfolds — — and Ftheory applications —
"... The fourform field strength in Ftheory compactifications on CalabiYau fourfolds takes its value in the middle cohomology group H4. The middle cohomology is decomposed into a vertical, a horizontal and a remaining component, all three of which are present in general. We argue that a flux along the ..."
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elliptic CalabiYau fourfolds supporting SU(5) gauge symmetry that a remaining component can be present, for example, in a form crucial to the symmetry breaking SU(5) −→ SU(3)C×SU(2)L×U(1)Y. The dimension of the horizontal component above is used to derive an estimate of the statistical distribution
Extensions of the mandala of Legendrian dualities for pseudospheres in LorentzMinkowski space
, 2009
"... Using the Legnedrian duarities between surfaces in pseudospheres in LorentzMinkowski 4space, we study various kind of flat surfaces in pseudospheres. We consider a surface in the pseudosphere and its dual surface. Flatness of a surface is defined by the degeneracy of the dual surface similar to ..."
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Cited by 16 (10 self)
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Using the Legnedrian duarities between surfaces in pseudospheres in LorentzMinkowski 4space, we study various kind of flat surfaces in pseudospheres. We consider a surface in the pseudosphere and its dual surface. Flatness of a surface is defined by the degeneracy of the dual surface similar to the case for the Gauss map of a flat surface in the Euclidean space. We study singularities of these flat surfaces and dualities of singularities. 1
Evolutionary relationships in some cetrarioid genera (Lichenized Ascomycota
, 1998
"... The dissertation is accepted for the commencement o f the degree o f Doctor philosophiae in botany and mycology at the University o f Tartu on December 3, 1997 by the Doctoral Committee o f the Faculty o f Biology and Geography of ..."
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Cited by 15 (0 self)
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The dissertation is accepted for the commencement o f the degree o f Doctor philosophiae in botany and mycology at the University o f Tartu on December 3, 1997 by the Doctoral Committee o f the Faculty o f Biology and Geography of
Results 1  10
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