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Scheduling Open Queueing Networks with Sufficiently Flexible Resources
"... We study asymptotically optimal scheduling of open queueing networks with flexible non-identical servers with overlapping capabilities, or equivalently, discretionary routing. Extending results obtained by Laws as well as Harrison and Lopez to networks with probabilistic feedback routing, we articul ..."
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Cited by 3 (1 self)
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We study asymptotically optimal scheduling of open queueing networks with flexible non-identical servers with overlapping capabilities, or equivalently, discretionary routing. Extending results obtained by Laws as well as Harrison and Lopez to networks with probabilistic feedback routing, we
Active Messages: a Mechanism for Integrated Communication and Computation
, 1992
"... The design challenge for large-scale multiprocessors is (1) to minimize communication overhead, (2) allow communication to overlap computation, and (3) coordinate the two without sacrificing processor cost/performance. We show that existing message passing multiprocessors have unnecessarily high com ..."
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Cited by 1054 (75 self)
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tremendous flexibility. Implementations on nCUBE/2 and CM-5 are described and evaluated using a split-phase shared-memory extension to C, Split-C. We further show that active messages are sufficient to implement the dynamically scheduled languages for which message driven machines were designed
Crystallography & NMR system: A new software suite for macromolecular structure determination.
- Acta Crystallogr. D Biol. Crystallogr.
, 1998
"... Abstract A new software suite, called Crystallography & NMR System (CNS), has been developed for macromolecular structure determination by X-ray crystallography or solution nuclear magnetic resonance (NMR) spectroscopy. In contrast to existing structure determination programs the architecture o ..."
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Cited by 1411 (6 self)
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is possible. The CNS language is sufficiently powerful and flexible that many new algorithms can be easily implemented in the CNS language without changes to the source code. The CNS language allows the user to perform operations on data structures, such as structure factors, electron density maps, and atomic
The Contourlet Transform: An Efficient Directional Multiresolution Image Representation
- IEEE TRANSACTIONS ON IMAGE PROCESSING
"... The limitations of commonly used separable extensions of one-dimensional transforms, such as the Fourier and wavelet transforms, in capturing the geometry of image edges are well known. In this paper, we pursue a “true” two-dimensional transform that can capture the intrinsic geometrical structure t ..."
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Cited by 513 (20 self)
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flexible multiresolution, local, and directional image expansion using contour segments, and thus it is named the contourlet transform. The discrete contourlet transform has a fast iterated filter bank algorithm that requires an order N operations for N-pixel images. Furthermore, we establish a precise
On µ-kernel construction
- Symposium on Operating System Principles
, 1995
"... From a software-technology point of view, the-kernel concept is superior to large integrated kernels. On the other hand, it is widely believed that (a)-kernel based systems are inherently inefficient and (b) they are not sufficiently flexible. Contradictory to this belief, we show and support by doc ..."
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Cited by 429 (25 self)
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From a software-technology point of view, the-kernel concept is superior to large integrated kernels. On the other hand, it is widely believed that (a)-kernel based systems are inherently inefficient and (b) they are not sufficiently flexible. Contradictory to this belief, we show and support
Scheduler Activations: Effective Kernel Support for the User-Level Management of Parallelism
- ACM Transactions on Computer Systems
, 1992
"... Threads are the vehicle,for concurrency in many approaches to parallel programming. Threads separate the notion of a sequential execution stream from the other aspects of traditional UNIX-like processes, such as address spaces and I/O descriptors. The objective of this separation is to make the expr ..."
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Cited by 475 (21 self)
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the expression and control of parallelism sufficiently cheap that the programmer or compiler can exploit even fine-grained parallelism with acceptable overhead. Threads can be supported either by the operating system kernel or by user-level library code in the application address space, but neither approach has
POLICY IMPLICATIONS FOR EUROPE ENEPRI WORKING PAPER NO. 10 ARE EUROPEAN LABOUR MARKETS SUFFICIENTLY FLEXIBLE
"... Whether European labour markets are sufficiently flexible to adjust efficiently to adverse shocks and thus avoid a rise in unemployment has been hotly debated for a couple of decades. Many studies have argued that European labour markets were less flexible that labour markets in other OECD countries ..."
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Whether European labour markets are sufficiently flexible to adjust efficiently to adverse shocks and thus avoid a rise in unemployment has been hotly debated for a couple of decades. Many studies have argued that European labour markets were less flexible that labour markets in other OECD
Technological pedagogical content knowledge: A framework for integrating technology in teacher knowledge.
- Teachers College Record,
, 2006
"... Abstract This paper describes a framework for teacher knowledge for technology integration called technological pedagogical content knowledge (originally TPCK, now known as TPACK, or technology, pedagogy, and content knowledge). This framework builds on Lee Shulman's construct of pedagogical c ..."
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Cited by 420 (19 self)
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theoretically and in practice, produces the types of flexible knowledge needed to successfully integrate technology use into teaching. Technology and Teacher Education, 9(1) Contemporary Issues in 61 As educators know, teaching is a complicated practice that requires an interweaving of many kinds
Semistructured data
, 1997
"... In semistructured data, the information that is normally as-sociated with a schema is contained within the data, which is sometimes called “self-describing”. In some forms of semi-structured data there is no separate schema, in others it exists but only places loose constraints on the data. Semi-str ..."
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Cited by 281 (0 self)
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-structured data has recently emerged as an important topic of study for a variety of reasons. First, there are data sources such as the Web, which we would like to treat as databases but which cannot be constrained by a schema. Second, it may be desirable to have an extremely flexible format for data exchange
Dealing with disaster: Surviving misbehaved kernel extensions
- In OSDI
, 1996
"... Today’s extensible operating systems allow applications to modify kernel behavior by providing mechanisms for application code to run in the kernel address space. The advantage of this approach is that it provides improved application flexibility and performance; the disadvantage is that buggy or ma ..."
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Cited by 276 (9 self)
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Today’s extensible operating systems allow applications to modify kernel behavior by providing mechanisms for application code to run in the kernel address space. The advantage of this approach is that it provides improved application flexibility and performance; the disadvantage is that buggy
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