602 research outputs found
Fast Video Classification via Adaptive Cascading of Deep Models
Recent advances have enabled "oracle" classifiers that can classify across
many classes and input distributions with high accuracy without retraining.
However, these classifiers are relatively heavyweight, so that applying them to
classify video is costly. We show that day-to-day video exhibits highly skewed
class distributions over the short term, and that these distributions can be
classified by much simpler models. We formulate the problem of detecting the
short-term skews online and exploiting models based on it as a new sequential
decision making problem dubbed the Online Bandit Problem, and present a new
algorithm to solve it. When applied to recognizing faces in TV shows and
movies, we realize end-to-end classification speedups of 2.4-7.8x/2.6-11.2x (on
GPU/CPU) relative to a state-of-the-art convolutional neural network, at
competitive accuracy.Comment: Accepted at IEEE Conference on Computer Vision and Pattern
Recognition (CVPR), 201
Ethanol Exposure in Rats and its Effect on Genetic Markers
Alcoholism is believed to affect an estimated 18 million people each year. The number of people abusing alcohol is three times the number of people abusing all other substances combined. (Institute for Health Policy, 2001) An estimated $276 billion per year(Institute for Health Policy, 2001)is spent to combat the influence of alcoholism in this country alone; more than cancer, heart disease, and diabetes, combined.
A full understanding of the effects of alcohol on the developing nervous system and other organ systems, and knowing when and where that central or internal organ damage has occurred after a certain period of abuse will allow us to identify at risk individuals and allow for appropriate and efficient interventional strategies. The purpose of this study was to try and identify which peripheral biomarkers indicate when early evidence for central nervous system damage has occurred.
We performed this using a well-established rat model of drinking with the intention of identifying genes in peripheral blood whose expression patterns are strongly correlated with damage to the brain but separate from changes produced by damage to the heart or liver. We found two genes that showed highly significant changes in all tissues, the Fos gene and the Hfrlike gene, although significant, they were not too interesting because they are known to fluctuate with other toxins. Further studies need to be done to pinpoint a specific biomarker for ethanol induced change
Preliminary experiments on the culture of the banded coral shrimp Stenopus hispidus Oliver- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish
The banded coral shrimp, Stenopus hispidus Oliver, is the largest of the known тАЬcleanerтАЭ shrimps which remove
and eat parasites, injured tissue, and undesirable food particles from a large variety of reef fishes and helps to control
gill, oral, and external parasites reef fishes as does by cleaner wrasses (Limbaugh et al., 1961). S. hispidus occurs
throughout the Indo-Pacific region (Holthius, 1946). It is usually found in pairs in a variety of reef habitats, including
under coral ledges and in natural depressions in rock formations, where reef fishes come to be cleaned. In addition to
its useful ecological role, the banded coral shrimp is also a beautiful and hardy specimen, which makes it very popular
in the aquarium industry. Because of this popularity, a number of attempts have been carried out to breed it on a
commercial scale, but none has succeeded due to high larval mortality and failure of the larvae to settle and
metamorphose (Young, 1979). The purpose of this work was to study the reproductive cycle of S. hispidus, including
maturation, mating, spawning, and hatching rate, to develop techniques for rearing larvae and inducing settlement
and metamorphosis of larvae
Marine aquaria
There are many uses of maintaining marine aquaria. Considering the world trade of US$ 4.5 billion, there is
tremendous potential for exporting marine ornamental fi shes from India. The sequences for setting up a marine
aquarium such as designing and preparation of tank, biological filtration system, aeration, decoration of tanks,
sterilization, lighting, maintaining water quality and feeding the fishes etc are discussed
Artificial reefs
Artificial reefs are natural or manmade external objects or stable structures placed in the sea to provide an artificial fish habitat and thereby to attract, aggregate and regenerate fishery resources. Artificial reefs are used worldwide to increase the productivity and fisheries potential of relatively barren or unproductive areas. Artificial reefs are also used as effective fish attracting devices during certain times of the year. Reefs when properly located and structured not only concentrate fishes but also increase the biological productivity of the area. Reefs also often serve as spawning and nursery areas for fishes and shellfishe
Fishery resources of Veraval
Marine production at Veraval has undergone
tremendous changes. Fish production increased
from 33,827 tonnes in 1983 to 47,867
tonnes in 1988 and further to 1,15, 703 tonnes
in 1991. The increase in the production from
1989 was tremendous and unproportionate to the
increase in the effort. This increase in the catch,
although was very evident in the case of trawl
landings, was also remarkable in the gill net
catche
Artificial reefs habitat enhancement and increasing fisheries potential
Artificial reefs are used throughout the
world to increase the fisheries poter\tial of barren
or relatively unproductive areas. Artificial reefs
also act as effective fish attracting devices during
certain times of the year. Reefs when properly
located and structured not only concentrate fishes,
but also increase the biological productivity of the
area. Formation of rough rigid bottom habitat
with artificial reefs of diverse materials increases
the surface area necessary for fish food organisms.
The reefs also often serve as spawning habitat and
shelter for fishes and shellfishes
Understanding the Mechanisms that Affect the Quality of Electrochemically Grown Semiconducting Nanowires
Template-assisted synthesis of nanowires is a simple electrochemical technique commonly used in the fabrication of semiconducting nanowires. It is an easy and cost-effective approach compared to conventional lithography, which requires expensive equipment. The focus of this chapter is on the various mechanisms involving mass transport of ions during successive stages of the template-assisted electrochemical growth of indium antimonide (InSb) nanowires. The nanowires were grown in two different templates such as commercially available anodic aluminum oxide (AAO) templates and polycarbonate membranes. The chapter also presents the results of characterizing the InSb nanowires connected in a field effect transistor (FET) configuration. The Sb-rich InSb nanowires that were fabricated by DC electrodeposition in nanoporous AAO exhibited hole-dominated transport (p-type conduction). Temperature-dependent transport measurement shows the semiconducting nature of these nanowires
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