Results 61 to 70 of about 6,336 (186)

Élaboration d'une nouvelle métaheuristique pour le partitionnement de graphe : la méthode de fusion-fission. Application au découpage de l'espace aérien [PDF]

, 2007
Dans cette thèse, nous étudions des méthodes de partitionnement de graphe et les appliquons au découpage de l'espace aérien, ainsi qu'à d'autres problèmes. L'espace aérien est composé de volumes limités, appelés secteurs de contrôle, chacun étant sous la
Bichot, Charles-Edmond
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Trends of Tree-Based, Set-Partitioning Compression Techniques in Still and Moving Image Systems

, 2001
In addition to high compression efficiency, future still and moving image coding systems will require many other features. They include fidelity and resolution scalability, region of interest enhancement, random access decoding, resilience to errors due ...
William A. Pearlman
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Highly Scalable Single List Set Partitioning in Hierarchical Trees Image Compression

IOSR Journal of Electronics and Communication Engineering, 2014
A highly scalable image compression system produces a compressed image that can be easily decoded at several bit-rates (qualities) and resolutions (sizes). This is a very interesting feature in the heterogeneous environments of the Internet to satisfy the different user's requests.
openaire   +1 more source

Kompresi Citra Menggunakan Metode Wavelet Packet Tree [PDF]

, 2012
ABSTRAKSI: Berkembangnya media informasi yang termasuk citra digital menuntut metode penyimpanan yang dapat menyimpan dalam ukuran sekecil mungkin agar mudah dalam penyimpanan dan lebih mudah untuk ditransmisikan nantinya.
Ilman Ardyatma Bujang
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Compression of 3-D echocardiographic images using a modified 3-D set-partitioning-in-hierarchical-trees algorithm based on a 3-D wavelet packet transform

, 2006
An efficient compression strategy is indispensable for 3-D digital echocardiography, which can provide more accurate diagnostic information than 2-D echocardiography without geometric assumption, but unfortunately requires a huge storage space.
Xiyi Hang, Yuan F. Zheng, Neil L. Greenberg, James D. Thomas   +3 more
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Error-resilient performance of Dirac video codec over packet-erasure channel

, 2007
Video transmission over the wireless or wired network requires error-resilient mechanism since compressed video bitstreams are sensitive to transmission errors because of the use of predictive coding and variable length coding.
Loo, KK, Tun, M, Cosmas, J
core   +1 more source

Balanced Aspect Ratio Trees Revisited

, 2008
Spatial databases support a variety of geometric queries on point data such as range searches, nearest neighbor searches, etc. Balanced Aspect Ratio (BAR) trees are hierarchical space decomposition structures that are general-purpose and space-efficient,
Amitabh Chaudhary, Michael T. Goodrich
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An interior point algorithm for minimum sum-of-squares clustering

, 2000
Copyright @ 2000 SIAM PublicationsAn exact algorithm is proposed for minimum sum-of-squares nonhierarchical clustering, i.e., for partitioning a given set of points from a Euclidean m-space into a given number of clusters in order to minimize the sum of ...
Du Merle, O, Jaumard, Brigitte, Mladenović, Nenad, Hansen, P, Mladenović, N, Hansen, Pierre, Merle, O. D., Jaumard, B   +7 more
core   +1 more source

Recursive partitioning based approaches for low back pain subgroup identification in individual patient data meta-analyses [PDF]

This thesis presents two novel approaches for performing subgroup analyses or identifying subgroups in an individual patient data (IPD) meta-analyses setting. The work contained in this thesis originated from an important research priority in the area of
Mistry, Dipesh
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A CLUE for CLUster ensembles

, 2005
Cluster ensembles are collections of individual solutions to a given clustering problem which are useful or necessary to consider in a wide range of applications.
Kurt Hornik, Hornik, Kurt
core   +1 more source