Results 51 to 60 of about 34,383 (208)

Deterministic Sampling and Range Counting in Geometric Data Streams [PDF]

, 2003
We present memory-efficient deterministic algorithms for constructing epsilon-nets and epsilon-approximations of streams of geometric data. Unlike probabilistic approaches, these deterministic samples provide guaranteed bounds on their approximation ...
Amitabh Chaudhary, Amitabha Bagchi, Cormode G., Datar M., David Eppstein, Demaine E. D., Fang M., Feigenbaum J., Gupta A., Har-Peled S., Hershberger J., Indyk P., Indyk P., Korn F., Langerman S., Manku G. S., Matoušek J., Matoušek J., Matoušek J., Michael T. Goodrich, Rousseeuw P. J., Thiel H.   +21 more
core   +3 more sources

Icebergs boost phytoplankton growth in the Southern Ocean [PDF]

, 2008
Icebergs which calve from the Antarctic ice shelves and drift in the Southern Ocean deliver fresh water, dust and minerogenic particles to the surface ocean along the iceberg's path.
Jill N. Schwarz, Michael P. Schodlok
core   +1 more source

Ship-Iceberg Detection and Classification in Sentinel-1 SAR Images

TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 2020
The European Space Agency Sentinel-1 satellites provide good resolution all weather SAR images. We describe algorithms for detection and classification of ships, icebergs and other objects at sea. Sidelobes from strongly reflecting objects as large ships are suppressed for better determination of ship parameters. The resulting improved ship lengths and
openaire   +3 more sources

Study of the prevalence of Multidrug-Resistant Pulmonary Tuberculosis (MDR-TB) in Western Rajasthan using line probe assay

Journal of Family Medicine and Primary Care, 2020
Objective: To determine the prevalence of MDR-TB and find out the incidence of drug resistance using molecular diagnostic method. Line probe assay (LPA) is based on the principle of multiplex PCR is used to detect MTB (Mycobacterium tuberculosis) complex
Mukesh Sharma, Deepak Kumar, Gopal K Bohra, Durga S Meena, Sunil K Bhambu   +4 more
doaj   +1 more source

Extending backcalculation to analyse BSE data.

, 2003
We review the origins of backcalculation (or back projection) methods developed for the analysis of AIDS (acquired immunodeficiency syndrome) incidence data. These techniques have been used extensively for >15 years to deconvolute clinical case incidence,
Anderson, RM, Donnelly, CA, Ferguson, NM, Ghani, AC   +3 more
core   +1 more source

Extracting iceberg freeboard using shadow length in high-resolution optical images

Geo-spatial Information Science
Icebergs are big chunks of ice floating on the ocean surface, and melting of icebergs contributes for the major part of freshwater flux into ocean. Dynamic monitoring of the icebergs in Antarctica and accurate estimation of their volume are important for
Ziyi Suo, Yingcheng Lu, Jianqiang Liu, Jing Ding, Qing Wang, Ling Li, Weimin Ju, Manchun Li   +7 more
doaj   +1 more source

Mortality in patients with successful initial response to highly active antiretroviral therapy is still higher than in non-HIV-infected individuals.

, 2005
Mortality in HIV-infected patients has decreased dramatically since the introduction of highly active antiretroviral therapy (HAART). We analyzed progression to death in a population of 3678 antiretroviral treatment-naive patients from the ATHENA ...
Anderson, Roy M, ATHENA National Observational Cohort Study, Danner, Sven, de Wolf, Frank, Ghani, Azra C, Gras, Luuk, van Sighem, Ard   +6 more
core   +2 more sources

Iceberg Detection in Satellite Images using Deep Learning Techniques

International Journal of Recent Technology and Engineering (IJRTE), 2020
Iceberg detection is found to be more critical in the previous researchers. High quality satellite monitoring of dangerous ice formations is critical to navigation safety and economic activity in the regions. The satellite images play a crucial role in the identification of the icebergs. In this manuscript, a convolutional neural network (CNN) model is
Aravapalli Naveena*, J.V.D. Prasad
openaire   +1 more source

Performance of quantum approximate optimization with quantum error detection

Communications Physics
The quantum approximate optimization algorithm (QAOA) is a promising candidate for scaling up to tackle real-world applications. However, achieving better-than-classical performance with QAOA is believed to require fault tolerance.
Zichang He, David Amaro, Ruslan Shaydulin, Marco Pistoia   +3 more
doaj   +1 more source

Understanding changes in iceberg–ship coexistence throughout the eastern Canadian Arctic: 2012–2019

FACETS
Icebergs present a known hazard to ships operating in ice-infested waters. As iceberg production rates vary, potentially compounded by climate change, it is becoming increasingly important to understand the extent to which icebergs pose navigational ...
Abigail Dalton, Luke Copland, Wesley Van Wychen, Jackie Dawson, Alison Cook, Adam Garbo, Derek Mueller, Adrienne Tivy   +7 more
doaj   +1 more source