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Hierarchical Extensions to SCI

by James R. Goodman, Stefanos Kaxiras , 1994
"... The cache coherence scheme of the Scalable Coherent Interface (SCI) offers performance for some operations degrading linearly with degree of sharing. For large scale sharing, we need schemes that offer logarithmic time reading and writing of shared data for acceptable performance. Therefore, we need ..."
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need to move from SCI's sharing lists to sharing trees. The currently proposed Kiloprocessor Extensions to SCI define tree protocols that create, maintain and invalidate binary trees without taking into account the underlying topology. However these protocols are quite complex. We propose a

Hierarchical Extensions to SCI

by James Goodman Stefanos, James R. Goodman, Stefanos Kaxiras
"... The cache coherence scheme of the Scalable Coherent Interface (SCI) offers performance for some operations degrading linearly with degree of sharing. For large scale sharing, we need schemes that offer logarithmic time reading and writing of shared data for acceptable performance. Therefore, we need ..."
Abstract - Add to MetaCart
need to move from SCI's sharing lists to sharing trees. The currently proposed Kiloprocessor Extensions to SCI define tree protocols that create, maintain and invalidate binary trees without taking into account the underlying topology. However these protocols are quite complex. We propose a

Distributed hierarchical processing in the primate cerebral cortex

by Daniel J. Felleman, David C. Van Essen - Cereb Cortex , 1991
"... In recent years, many new cortical areas have been identified in the macaque monkey. The number of identified connections between areas has increased even more dramatically. We report here on (1) a summary of the layout of cortical areas associated with vision and with other modalities, (2) a comput ..."
Abstract - Cited by 928 (6 self) - Add to MetaCart
computerized database for storing and representing large amounts of information on connectivity patterns, and (3) the application of these data to the analysis of hierarchical organization of the cerebral cortex. Our analysis concentrates on the visual system, which includes 25 neocortical areas

Modular typechecking for hierarchically extensible datatypes and functions

by Todd Millstein, Colin Bleckner, Craig Chambers - In Proceedings of the International Conference on Functional Programming , 2002
"... One promising approach for adding object-oriented (OO) facilities to functional languages like ML is to generalize the existing datatype and function constructs to be hierarchical and extensible, so that datatype variants simulate classes and function cases simulate methods. This approach allows exi ..."
Abstract - Cited by 34 (6 self) - Add to MetaCart
One promising approach for adding object-oriented (OO) facilities to functional languages like ML is to generalize the existing datatype and function constructs to be hierarchical and extensible, so that datatype variants simulate classes and function cases simulate methods. This approach allows

An Adaptive Hierarchical Extension of DSR: The Cluster Source Routing

by Farid Jaddi, Béatrice Paillassa
"... Abstract: Numerous studies have shown the difficulty for a single routing protocol to scale with respect to mobility and network size in wireless ad hoc networks. This paper presents a cluster-based extension of the DSR protocol called Cluster Source Routing (CSR) 1. The proposed approach improves t ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
Abstract: Numerous studies have shown the difficulty for a single routing protocol to scale with respect to mobility and network size in wireless ad hoc networks. This paper presents a cluster-based extension of the DSR protocol called Cluster Source Routing (CSR) 1. The proposed approach improves

Hierarchical Extension Operators and Local Multigrid Methods in Domain Decomposition Preconditioners

by G. Haase, U. Langer, A. Meyer, S.V. Nepomnyaschikh - East-West J. Numer. Math , 1994
"... Domain Decomposition (DD) is not only the basic tool for data partitioning but also a successful technique for constructing new parallel pde solvers. The efficiency of the solver essentially depends on the preconditioner. In the present paper, we consider finite element (f.e.) schemes approximating ..."
Abstract - Cited by 25 (14 self) - Add to MetaCart
plane, symmetric, second-order elliptic boundary value problems (b.v.p.). We derive and analyse socalled Dirichlet DD preconditioners based on the non-overlapping DD, modified Schur-complement preconditioners, local multigrid methods and hierarchical extension procedures. The crucial point

Multicast Routing in Datagram Internetworks and Extended LANs

by Stephen E. Deering, David R. Cheriton - ACM Transactions on Computer Systems , 1990
"... Multicasting, the transmission of a packet to a group of hosts, is an important service for improving the efficiency and robustness of distributed systems and applications. Although multicast capability is available and widely used in local area networks, when those LANs are interconnected by store- ..."
Abstract - Cited by 1074 (5 self) - Add to MetaCart
-and-forward routers, the multicast service is usually not offered across the resulting internetwork. To address this limitation, we specify extensions to two common internetwork routing algorithms-distance-vector routing and link-state routing-to support low-delay datagram multicasting beyond a single LAN. We also

Matching words and pictures

by Kobus Barnard, Pinar Duygulu, David Forsyth, Nando De Freitas, David M. Blei, Michael I. Jordan - JOURNAL OF MACHINE LEARNING RESEARCH , 2003
"... We present a new approach for modeling multi-modal data sets, focusing on the specific case of segmented images with associated text. Learning the joint distribution of image regions and words has many applications. We consider in detail predicting words associated with whole images (auto-annotation ..."
Abstract - Cited by 665 (40 self) - Add to MetaCart
, including several which explicitly learn the correspondence between regions and words. We study multi-modal and correspondence extensions to Hofmann’s hierarchical clustering/aspect model, a translation model adapted from statistical machine translation (Brown et al.), and a multi-modal extension to mixture

Scalable Application Layer Multicast

by Suman Banerjee, Bobby Bhattacharjee, Christopher Kommareddy , 2002
"... We describe a new scalable application-layer multicast protocol, specifically designed for low-bandwidth, data streaming applications with large receiver sets. Our scheme is based upon a hierarchical clustering of the application-layer multicast peers and can support a number of different data deliv ..."
Abstract - Cited by 731 (21 self) - Add to MetaCart
We describe a new scalable application-layer multicast protocol, specifically designed for low-bandwidth, data streaming applications with large receiver sets. Our scheme is based upon a hierarchical clustering of the application-layer multicast peers and can support a number of different data

Contour Detection and Hierarchical Image Segmentation

by Pablo Arbeláez, Michael Maire, Charless Fowlkes, Jitendra Malik - IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE , 2010
"... This paper investigates two fundamental problems in computer vision: contour detection and image segmentation. We present state-of-the-art algorithms for both of these tasks. Our contour detector combines multiple local cues into a globalization framework based on spectral clustering. Our segmentati ..."
Abstract - Cited by 389 (24 self) - Add to MetaCart
segmentation algorithm consists of generic machinery for transforming the output of any contour detector into a hierarchical region tree. In this manner, we reduce the problem of image segmentation to that of contour detection. Extensive experimental evaluation demonstrates that both our contour detection
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