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Measurement, Modeling, and Analysis of a Peer-to-Peer File-Sharing Workload

by Krishna P. Gummadi, Richard J. Dunn, Stefan Saroiu, Steven D. Gribble, Henry M. Levy, John Zahorjan , 2003
"... Peer-to-peer (P2P) file sharing accounts for an astonishing volume of current Internet tra#c. This paper probes deeply into modern P2P file sharing systems and the forces that drive them. By doing so, we seek to increase our understanding of P2P file sharing workloads and their implications for futu ..."
Abstract - Cited by 487 (7 self) - Add to MetaCart
Peer-to-peer (P2P) file sharing accounts for an astonishing volume of current Internet tra#c. This paper probes deeply into modern P2P file sharing systems and the forces that drive them. By doing so, we seek to increase our understanding of P2P file sharing workloads and their implications

Ricci Flow with Surgery on Three-Manifolds

by Grisha Perelman
"... This is a technical paper, which is a continuation of [I]. Here we verify most of the assertions, made in [I, §13]; the exceptions are (1) the statement that a 3-manifold which collapses with local lower bound for sectional curvature is a graph manifold- this is deferred to a separate paper, as the ..."
Abstract - Cited by 448 (2 self) - Add to MetaCart
, as the proof has nothing to do with the Ricci flow, and (2) the claim about the lower bound for the volumes of the maximal horns and the smoothness of the solution from some time on, which turned out to be unjustified, and, on the other hand, irrelevant for the other conclusions. The Ricci flow with surgery

The Determinants of Credit Spread Changes.

by Pierre Collin-Dufresne , Robert S Goldstein , J Spencer Martin , Gurdip Bakshi , Greg Bauer , Dave Brown , Francesca Carrieri , Peter Christoffersen , Susan Christoffersen , Greg Duffee , Darrell Duffie , Vihang Errunza , Gifford Fong , Mike Gallmeyer , Laurent Gauthier , Rick Green , John Griffin , Jean Helwege , Kris Jacobs , Chris Jones , Andrew Karolyi , Dilip Madan , David Mauer , Erwan Morellec , Federico Nardari , N R Prabhala , Tony Sanders , Sergei Sarkissian , Bill Schwert , Ken Singleton , Chester Spatt , René Stulz - Journal of Finance , 2001
"... ABSTRACT Using dealer's quotes and transactions prices on straight industrial bonds, we investigate the determinants of credit spread changes. Variables that should in theory determine credit spread changes have rather limited explanatory power. Further, the residuals from this regression are ..."
Abstract - Cited by 422 (2 self) - Add to MetaCart
-quadratic regression σ(K) = a + bK + cK 2 , where K is the strike price. Our estimate of this slope, jump t , is defined via where F is the at-the money strike price, which equals the current futures price. We choose to look at the implied volatility at K = .9F because we do not want 6 to extrapolate the quadratic

On the geometry of metric measure spaces

by Karl-theodor Sturm - II, ACTA MATH , 2004
"... We introduce and analyze lower (’Ricci’) curvature bounds Curv(M, d,m) ≥ K for metric measure spaces (M, d,m). Our definition is based on convexity properties of the relative en-tropy Ent(.|m) regarded as a function on the L2-Wasserstein space of probability measures on the metric space (M, d). Amo ..."
Abstract - Cited by 247 (9 self) - Add to MetaCart
). Among others, we show that Curv(M, d,m) ≥ K implies estimates for the volume growth of concentric balls. For Riemannian manifolds, Curv(M, d,m) ≥ K if and only if RicM (ξ, ξ) ≥ K · |ξ|2 for all ξ ∈ TM. The crucial point is that our lower curvature bounds are stable under an appropriate notion of D

237

by C Sucrose
"... Thermoacidophilic prokaryotes inhabiting acidic hot springs are represented by archaea and bacteria with either respiratory [1] or anaerobic fermentative [2, 5] metabolism. Thermoacidophilic microorganisms avail-able in laboratory cultures grow at temperatures rang-ing from 50 to 92°C and at pH 0–5. ..."
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Thermoacidophilic prokaryotes inhabiting acidic hot springs are represented by archaea and bacteria with either respiratory [1] or anaerobic fermentative [2, 5] metabolism. Thermoacidophilic microorganisms avail-able in laboratory cultures grow at temperatures rang-ing from 50 to 92°C and at pH 0

The VolumePro Real-Time Ray-Casting System

by Hanspeter Pfister, Jan Hardenbergh, Jim Knittel, Hugh Lauer, Larry Seiler , 1999
"... This paper describes VolumePro, the world's first single-chip realtime volume rendering system for consumer PCs. VolumePro implements ray-casting with parallel slice-by-slice processing. Our discussion of the architecture focuses mainly on the rendering pipeline and the memory organization. Vol ..."
Abstract - Cited by 194 (10 self) - Add to MetaCart
: B.4.2 [Hardware]: Input/Output and Data Communications---Input/Output DevicesImage display; C.3 [Com...

Coil sensitivity encoding for fast MRI. In:

by Klaas P Pruessmann , Markus Weiger , Markus B Scheidegger , Peter Boesiger - Proceedings of the ISMRM 6th Annual Meeting, , 1998
"... New theoretical and practical concepts are presented for considerably enhancing the performance of magnetic resonance imaging (MRI) by means of arrays of multiple receiver coils. Sensitivity encoding (SENSE) is based on the fact that receiver sensitivity generally has an encoding effect complementa ..."
Abstract - Cited by 193 (3 self) - Add to MetaCart
an imaging experiment using an array of n C receiver coils. Fourier encoding is described by a set of n K sampling positions in k-space. Let the whole object be within the volume of interest (VOI). Then a sample value m obtained from the ␥-th coil at the -th position in k-space is given by where r denotes 3D

Noncommutative manifolds, the instanton algebra and isospectral deformations

by Alain Connes, Giovanni Landi - Comm. Math. Phys
"... We give new examples of noncommutative manifolds that are less standard than the NC-torus or Moyal deformations of R n. They arise naturally from basic considerations of noncommutative differential topology and have non-trivial global features. The new examples include the instanton algebra and the ..."
Abstract - Cited by 167 (29 self) - Add to MetaCart
and the NC-4-spheres S4 θ. We construct the noncommutative algebras A = C ∞ (S4 θ) of functions on NCspheres as solutions to the vanishing, chj(e) = 0,j < 2, of the Chern character in the cyclic homology of A of an idempotent e ∈ M4(A), e2 = e, e = e ∗. We describe the universal noncommutative space

Information extraction: techniques and challenges

by Ralph Grishman - In Information Extraction (International Summer School SCIE-97 , 1997
"... This volume takes a broad view of information extraction as any method for ltering information from large volumes of text. This includes the retrieval of documents from collections and the tagging of particular terms in text. In this paper we shall use a narrower de nition: the identi cation of inst ..."
Abstract - Cited by 162 (4 self) - Add to MetaCart
This volume takes a broad view of information extraction as any method for ltering information from large volumes of text. This includes the retrieval of documents from collections and the tagging of particular terms in text. In this paper we shall use a narrower de nition: the identi cation

Carbon to volume relationships for dinoflagellates, diatoms and other protist plankton

by Susanne Menden-deuer, Evelyn J. Lessard - Limnol. Oceanogr , 2000
"... Cellular carbon and nitrogen content and cell volume of nutritionally and morphologically diverse dinoflagellate species were measured to determine carbon to volume (C: vol) and nitrogen to volume (N: vol) relationships. Cellular C and N content ranged from 48 to 3.0 3 104 pgC cell21 and 11 to 2,656 ..."
Abstract - Cited by 123 (1 self) - Add to MetaCart
Cellular carbon and nitrogen content and cell volume of nutritionally and morphologically diverse dinoflagellate species were measured to determine carbon to volume (C: vol) and nitrogen to volume (N: vol) relationships. Cellular C and N content ranged from 48 to 3.0 3 104 pgC cell21 and 11 to 2
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