Results 71 to 80 of about 35,976 (328)

Lossy compression of discrete sources via Viterbi algorithm

, 2010
We present a new lossy compressor for discrete-valued sources. For coding a sequence $x^n$, the encoder starts by assigning a certain cost to each possible reconstruction sequence.
Jalali, Shirin, Montanari, Andrea, Weissman, Tsachy   +2 more
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Data Compression with a Time Limit

Algorithms
In this paper, we explore a framework to identify an optimal choice of compression algorithms that enables the best allocation of computing resources in a large-scale data storage environment: our goal is to maximize the efficiency of data compression ...
Bruno Carpentieri
doaj   +1 more source

The compression–error trade-off for large gridded data sets [PDF]

Geoscientific Model Development, 2017
The netCDF-4 format is widely used for large gridded scientific data sets and includes several compression methods: lossy linear scaling and the non-lossy deflate and shuffle algorithms.
J. D. Silver, C. S. Zender
doaj   +1 more source

Lossy Compression of Decimated Gaussian Random Walks

, 2018
We consider the problem of estimating a Gaussian random walk from a lossy compression of its decimated version. Hence, the encoder operates on the decimated random walk, and the decoder estimates the original random walk from its encoded version under a ...
Goldsmith, Andrea J., Kipnis, Alon, Murray, Georgia   +2 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Discrete Atomic Transform-Based Lossy Compression of Three-Channel Remote Sensing Images with Quality Control

Remote Sensing, 2021
Lossy compression of remote sensing data has found numerous applications. Several requirements are usually imposed on methods and algorithms to be used.
Victor Makarichev, Irina Vasilyeva, Vladimir Lukin, Benoit Vozel, Andrii Shelestov, Nataliia Kussul   +5 more
doaj   +1 more source

Statistical mechanical analysis of a hierarchical random code ensemble in signal processing

, 2011
We study a random code ensemble with a hierarchical structure, which is closely related to the generalized random energy model with discrete energy values.
Aji S, Derrida N, Derrida N, Gallager R G, Hayashi M, Kabashima Y, Kabashima Y, Kazutaka Takahashi, Koujin Takeda, Murayama T, Murayama T, Obuchi T, Ogure K, Ogure K, Parisi G, Parisi G, Pasiri G, Shannon C E, Shannon C E, Skantzos N S, Sourlas N, Tomoyuki Obuchi   +21 more
core   +1 more source

On the Lossy Compression of Spatial Networks

2024 IEEE International Symposium on Information Theory (ISIT)
In this paper, we address the lossy compression of spatial networks, namely random geometric graphs, where two nodes are connected by an edge with a probability that depends on the distance between the nodes. We carry out this study by considering the nth order information-distortion function, which quantifies the complexity of a random graph under a ...
Vippathalla, P, Wafula, MW, Badiu, M-A, Coon, JP   +3 more
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source