Results 11 - 20 of 11,300

Term structure evidence on interest rate smoothing and monetary policy inertia

by Glenn D. Rudebusch - FORTHCOMING IN THE JOURNAL OF MONETARY ECONOMICS , 2001
"... Numerous studies have used quarterly data to estimate monetary policy rules or reaction functions that appear to exhibit a very slow partial adjustment of the policy interest rate. The conventional wisdom asserts that this gradual adjustment reflects a policy inertia or interest rate smoothing behav ..."
Abstract - Cited by 292 (16 self) - Add to MetaCart
behavior by central banks. However, such quarterly monetary policy inertia would imply a large amount of forecastable variation in interest rates at horizons of more than three months, which is contradicted by evidence from the term structure of interest rates. The illusion of monetary policy inertia

Exact Indexing of Dynamic Time Warping

by Eamonn Keogh , 2002
"... The problem of indexing time series has attracted much research interest in the database community. Most algorithms used to index time series utilize the Euclidean distance or some variation thereof. However is has been forcefully shown that the Euclidean distance is a very brittle distance me ..."
Abstract - Cited by 350 (34 self) - Add to MetaCart
The problem of indexing time series has attracted much research interest in the database community. Most algorithms used to index time series utilize the Euclidean distance or some variation thereof. However is has been forcefully shown that the Euclidean distance is a very brittle distance

The tandem affinity purification (TAP) method: a general procedure of protein complex purification. Methods 24

by Oscar Puig, Friederike Caspary, Guillaume Rigaut, Berthold Rutz, Emmanuelle Bouveret, Elisabeth Bragado-nilsson, Matthias Wilm, Bertrand Séraphin , 2001
"... Identification of components present in biological complexes requires their purification to near homogeneity. Methods of purification vary from protein to protein, making it impossible to design a general purification strategy valid for all cases. We have devel-oped the tandem affinity purification ..."
Abstract - Cited by 353 (3 self) - Add to MetaCart
of interest. Starting from a relatively small number of cells, active macromolecular complexes can be isolated and used for multiple applications. Variations of the method to specifi-cally purify complexes containing two given components or to subtract undesired complexes can easily be implemented. The TAP

Latent Semantic Models for Collaborative filtering

by Thomas Hofmann - ACM Trans. Information Systems
"... Collaborative filtering aims at learning predictive models of user preferences, interests or behavior from community data, that is, a database of available user preferences. In this article, we describe a new family of model-based algorithms designed for this task. These algorithms rely on a statist ..."
Abstract - Cited by 331 (1 self) - Add to MetaCart
statistical modelling technique that introduces latent class variables in a mixture model setting to discover user communities and prototypical interest profiles. We investigate several variations to deal with discrete and continuous response variables as well as with different objective functions. The main

Time varying structural vector autoregressions and monetary policy

by Giorgio E. Primiceri - REVIEW OF ECONOMIC STUDIES , 2005
"... Monetary policy and the private sector behavior of the US economy are modeled as a time varying structural vector autoregression, where the sources of time variation are both the co-efficients and the variance covariance matrix of the innovations. The paper develops a new, simple modeling strategy f ..."
Abstract - Cited by 306 (8 self) - Add to MetaCart
Monetary policy and the private sector behavior of the US economy are modeled as a time varying structural vector autoregression, where the sources of time variation are both the co-efficients and the variance covariance matrix of the innovations. The paper develops a new, simple modeling strategy

IMPORTANT: A framework to systematically analyze the Impact of Mobility on Performance of RouTing protocols for Adhoc NeTworks

by Fan Bai, Narayanan Sadagopan, Ahmed Helmy - IEEE INFOCOM , 2003
"... Abstract — A Mobile Ad hoc Network (MANET) is a collection of wireless mobile nodes forming a temporary network without using any existing infrastructure. Since not many MANETs are currently deployed, research in this area is mostly simulation based. Random Waypoint is the commonly used mobility mod ..."
Abstract - Cited by 299 (18 self) - Add to MetaCart
mobility models on the performance of MANET routing protocols. We propose various protocol independent metrics to capture interesting mobility characteristics, including spatial and temporal dependence and geographic restrictions. In addition, a rich set of parameterized mobility models is introduced

Wavelet shrinkage: asymptopia

by David L. Donoho, Iain M. Johnstone, Gerard Kerkyacharian, Dominique Picard - Journal of the Royal Statistical Society, Ser. B , 1995
"... Considerable e ort has been directed recently to develop asymptotically minimax methods in problems of recovering in nite-dimensional objects (curves, densities, spectral densities, images) from noisy data. A rich and complex body of work has evolved, with nearly- or exactly- minimax estimators bein ..."
Abstract - Cited by 295 (36 self) - Add to MetaCart
, Sobolev classes, and Bounded Variation. This is amuch broader near-optimality than anything previously proposed in the minimax literature. Finally, the theory underlying the method is interesting, as it exploits a correspondence between statistical questions and questions of optimal recovery

Wireless Network Information Flow: A Deterministic Approach

by A. Salman Avestimehr, et al. , 2009
"... In contrast to wireline networks, not much is known about the flow of information over wireless networks. The main barrier is the complexity of the signal interaction in wireless channels in addition to the noise in the channel. A widely accepted model is the the additive Gaussian channel model, and ..."
Abstract - Cited by 296 (42 self) - Add to MetaCart
or more destinations (all interested in the same information) and an arbitrary number of relay nodes. This result is a natural generalization of the celebrated max-flow min-cut theorem for wireline networks. We then use the insights obtained from the analysis of the deterministic model to study

Learning a Sparse Representation for Object Detection

by Shivani Agarwal, Dan Roth - PRESENTED IN ECCV’02 , 2002
"... We present an approach for learning to detect objects in still gray images, that is based on a sparse, part-based representation of objects. A vocabulary of information-rich object parts is automatically constructed from a set of sample images of the object class of interest. Images are then repre ..."
Abstract - Cited by 293 (3 self) - Add to MetaCart
We present an approach for learning to detect objects in still gray images, that is based on a sparse, part-based representation of objects. A vocabulary of information-rich object parts is automatically constructed from a set of sample images of the object class of interest. Images

Assessing the Effects of School Resources on Student Performance: An Update

by Eric A. Hanushek , 1997
"... The relationship between school resources and student achievement has been controversial, in large part because it calls into question a variety of traditional policy approaches. This article reviews the available educational production literature, updating previous summaries. The close to 400 studi ..."
Abstract - Cited by 287 (11 self) - Add to MetaCart
studies of student achievement demonstrate that there is not a strong or consistent relationship between stu-dent performance and school resources, at least after variations in family inputs are taken into ac-count. These results are also reconciled with meta-analytic approaches and with other
Results 11 - 20 of 11,300