Results 1 - 10 of 11,336

Using Maimonides’ Rule to Estimate the Effect of Class Size on Scholastic Achievement

by Joshua D. Angrist, Victor Lavy - QUARTERLY JOURNAL OF ECONOMICS , 1999
"... The twelfth century rabbinic scholar Maimonides proposed a maximum class size of 40. This same maximum induces a nonlinear and nonmonotonic relation-ship between grade enrollment and class size in Israeli public schools today. Maimonides’ rule of 40 is used here to construct instrumental variables e ..."
Abstract - Cited by 582 (40 self) - Add to MetaCart
estimates of effects of class size on test scores. The resulting identification strategy can be viewed as an application of Donald Campbell’s regression-discontinuity design to the class-size question. The estimates show that reducing class size induces a significant and substantial increase in test scores

Random Early Detection Gateways for Congestion Avoidance.

by Sally Floyd , Van Jacobson - IEEELACM Transactions on Networking, , 1993
"... Abstract-This paper presents Random Early Detection (RED) gateways for congestion avoidance in packet-switched networks. The gateway detects incipient congestion by computing the average queue size. The gateway could notify connections of congestion either by dropping packets arriving at the gatewa ..."
Abstract - Cited by 2716 (31 self) - Add to MetaCart
Abstract-This paper presents Random Early Detection (RED) gateways for congestion avoidance in packet-switched networks. The gateway detects incipient congestion by computing the average queue size. The gateway could notify connections of congestion either by dropping packets arriving

QSplat: A Multiresolution Point Rendering System for Large Meshes

by Szymon Rusinkiewicz, Marc Levoy , 2000
"... Advances in 3D scanning technologies have enabled the practical creation of meshes with hundreds of millions of polygons. Traditional algorithms for display, simplification, and progressive transmission of meshes are impractical for data sets of this size. We describe a system for representing and p ..."
Abstract - Cited by 502 (8 self) - Add to MetaCart
Advances in 3D scanning technologies have enabled the practical creation of meshes with hundreds of millions of polygons. Traditional algorithms for display, simplification, and progressive transmission of meshes are impractical for data sets of this size. We describe a system for representing

The geometry of graphs and some of its algorithmic applications

by Nathan Linial, Eran London, Yuri Rabinovich - COMBINATORICA , 1995
"... In this paper we explore some implications of viewing graphs as geometric objects. This approach offers a new perspective on a number of graph-theoretic and algorithmic problems. There are several ways to model graphs geometrically and our main concern here is with geometric representations that res ..."
Abstract - Cited by 524 (19 self) - Add to MetaCart
In this paper we explore some implications of viewing graphs as geometric objects. This approach offers a new perspective on a number of graph-theoretic and algorithmic problems. There are several ways to model graphs geometrically and our main concern here is with geometric representations

Outside directors and CEO turnover

by Michael !i. Weisbach, Jim Dana, Franklin M. Fisher, Paul Healy, Cliff Holdemess, Bob Kaplan, Mervyn King, Kevin J. Murphy, Rick Ruback, Ross Watts, Kr. Y Weisbach, Especially Ben Hermahn - Journal of Financial Economics , 1988
"... ‘this paper examines the relation between the monitoring of CEOs by inside aud outside directors and CEO resignations. CEO resignations are predicted using stock returns and earnings changes as measures of prior performance. There is a stronger association between prior performance and the prhabilit ..."
Abstract - Cited by 491 (10 self) - Add to MetaCart
and the prhability of a resignation for companies with outsider-dominated boards than for companies with insider-dominated boards. This result dces not appear to be a function of ownership effects, size effects, or industry effects. Unexpected stock returns on days when resignations are announced are consistent

View Size and Pointing Difficulty in Multi-Scale Navigation

by Yves Guiard, Michel Beaudouin-lafon, Julien Bastin, Dennis Pasveer, Shumin Zhai , 2004
"... Using a new taxonomy of pointing tasks which includes view pointing beside traditional cursor pointing, we introduce the concept of multi-scale pointing. Analyzing the impact of view size, we demonstrate theoretically and experimentally that (1) the time needed to reach a remotely located target in ..."
Abstract - Cited by 24 (4 self) - Add to MetaCart
Using a new taxonomy of pointing tasks which includes view pointing beside traditional cursor pointing, we introduce the concept of multi-scale pointing. Analyzing the impact of view size, we demonstrate theoretically and experimentally that (1) the time needed to reach a remotely located target

Layered depth images

by Steven J. Gortler, Li-wei He, Michael F. Cohen , 1997
"... In this paper we present an efficient image based rendering system that renders multiple frames per second on a PC. Our method performs warping from an intermediate representation called a layered depth image (LDI). An LDI is a view of the scene from a single input camera view, but with multiple pix ..."
Abstract - Cited by 456 (29 self) - Add to MetaCart
In this paper we present an efficient image based rendering system that renders multiple frames per second on a PC. Our method performs warping from an intermediate representation called a layered depth image (LDI). An LDI is a view of the scene from a single input camera view, but with multiple

Nanotoxicology: an emerging discipline evolving from studies of ultrafine particles. Environ Health Perspect 113:823–839

by Günter Oberdörster, Eva Oberdörster, Jan Oberdörster , 2005
"... Although humans have been exposed to airborne nanosized particles (NSPs; < 100 nm) throughout their evolutionary stages, such exposure has increased dramatically over the last century due to anthropogenic sources. The rapidly developing field of nanotechnology is likely to become yet another sour ..."
Abstract - Cited by 448 (3 self) - Add to MetaCart
source through inhalation, ingestion, skin uptake, and injection of engineered nanomaterials. Information about safety and potential hazards is urgently needed. Results of older biokinetic studies with NSPs and newer epidemiologic and toxicologic studies with airborne ultrafine particles can be viewed

A Pareto Model for OLAP View Size Estimation

by Thomas P. Nadeau, Toby J. Teorey
"... On Line Analytical Processing (OLAP) aims at gaining useful information quickly from large amounts of data residing in a data warehouse. To improve the quickness of response to queries, preaggregation is a useful strategy. However, it is usually impossible to pre-aggregate along all combinations of ..."
Abstract - Cited by 12 (3 self) - Add to MetaCart
algorithm for estimating the number of rows in an aggregate based on the Pareto distribution model. We test the Pareto Model Algorithm empirically against three published algorithms, and conclude the Pareto Model Algorithm is consistently the best of these algorithms for estimating view size.

Non-Deterministic Exponential Time has Two-Prover Interactive Protocols

by Laszlo Babai, Lance Fortnow, Carsten Lund
"... We determine the exact power of two-prover inter-active proof systems introduced by Ben-Or, Goldwasser, Kilian, and Wigderson (1988). In this system, two all-powerful non-communicating provers convince a randomizing polynomial time verifier in polynomial time that the input z belongs to the language ..."
Abstract - Cited by 416 (37 self) - Add to MetaCart
, linking more standard concepts of structural complexity, states that if EX P has poly-nomial size circuits then EXP = Cg = MA. The first part of the proof of the main result ex-tends recent techniques of polynomial extrapolation of truth values used in the single prover case. The second part is a
Results 1 - 10 of 11,336