2,486 research outputs found
Improving High Resolution Histology Image Classification with Deep Spatial Fusion Network
Histology imaging is an essential diagnosis method to finalize the grade and
stage of cancer of different tissues, especially for breast cancer diagnosis.
Specialists often disagree on the final diagnosis on biopsy tissue due to the
complex morphological variety. Although convolutional neural networks (CNN)
have advantages in extracting discriminative features in image classification,
directly training a CNN on high resolution histology images is computationally
infeasible currently. Besides, inconsistent discriminative features often
distribute over the whole histology image, which incurs challenges in
patch-based CNN classification method. In this paper, we propose a novel
architecture for automatic classification of high resolution histology images.
First, an adapted residual network is employed to explore hierarchical features
without attenuation. Second, we develop a robust deep fusion network to utilize
the spatial relationship between patches and learn to correct the prediction
bias generated from inconsistent discriminative feature distribution. The
proposed method is evaluated using 10-fold cross-validation on 400 high
resolution breast histology images with balanced labels and reports 95%
accuracy on 4-class classification and 98.5% accuracy, 99.6% AUC on 2-class
classification (carcinoma and non-carcinoma), which substantially outperforms
previous methods and close to pathologist performance.Comment: 8 pages, MICCAI workshop preceeding
Conceptual design study of a Harrier V/STOL research aircraft
MCAIR recently completed a conceptual design study to define modification approaches to, and derive planning prices for the conversion of a two place Harrier to a V/STOL control, display and guidance research aircraft. Control concepts such as rate damping, attitude stabilization, velocity command, and cockpit controllers are to be demonstrated. Display formats will also be investigated, and landing, navigation and guidance systems flight tested. The rear cockpit is modified such that it can be quickly adapted to faithfully simulate the controls, displays and handling qualities of a Type A or Type B V/STOL. The safety pilot always has take command capability. The modifications studied fall into two categories: basic modifications and optional modifications. Technical descriptions of the basic modifications and of the optional modifications are presented. The modification plan and schedule as well as the test plan and schedule are presented. The failure mode and effects analysis, aircraft performance, aircraft weight, and aircraft support are discussed
Bang the Can Slowly: An Investigation into the 2017 Houston Astros
This manuscript is a statistical investigation into the 2017 Major League
Baseball scandal involving the Houston Astros, the World Series championship
winner that same year. The Astros were alleged to have stolen their opponents'
pitching signs in order to provide their batters with a potentially unfair
advantage. This work finds compelling evidence that the Astros on-field
performance was significantly affected by their sign-stealing ploy and
quantifies the effects. The three main findings in the manuscript are: 1) the
Astros' odds of swinging at a pitch were reduced by approximately 27% (OR:
0.725, 95% CI: (0.618, 0.850)) when the sign was stolen, 2) when an Astros
player swung, the odds of making contact with the ball increased roughly 80%
(OR: 1.805, 95% CI: (1.342, 2.675)) on non-fastball pitches, and 3) when the
Astros made contact with a ball on a pitch in which the sign was known, the
ball's exit velocity (launch speed) increased on average by 2.386 (95% CI:
(0.334, 4.451)) miles per hour
"Quantum Interference with Slits" Revisited
Marcella [arXiv:quant-ph/0703126] has presented a straightforward technique
employing the Dirac formalism to calculate single- and double-slit interference
patterns. He claims that no reference is made to classical optics or scattering
theory and that his method therefore provides a purely quantum mechanical
description of these experiments. He also presents his calculation as if no
approximations are employed. We show that he implicitly makes the same
approximations found in classical treatments of interference and that no new
physics has been introduced. At the same time, some of the quantum mechanical
arguments Marcella gives are, at best, misleading.Comment: 11 pages, 3 figure
Influence of Polymer-coated Seed and Planting Dates on Corn
This three-year study was designed to study the effects polymer-coated corn seed on emergence and yield. The coating technology used was the Intellicoat® Early Plant seed coating technology. Intellicoat is derived from natural, biodegradable fatty acids, which act as temperature-sensitive switches. Thus, when soil temperatures warm above 55°F for several days, the polymer allows water to permeate the seed and germination to proceed
EC90-106 Nebraska Grain Sorghum Hybrid Tests 1990
Extension circular 90-106 is about Nebraska grain sorghum hybrid tests in 1990
The Chromospheric Telescope
We introduce the Chromospheric Telescope (ChroTel) at the Observatorio del
Teide in Izana on Tenerife as a new multi-wavelength imaging telescope for
full-disk synoptic observations of the solar chromosphere. We describe the
design of the instrument and summarize its performance during the first one and
a half years of operation. We present a method to derive line-of-sight velocity
maps of the full solar disk from filtergrams taken in and near the He I
infrared line at 10830 \AA.Comment: 12 pages, 9 figure
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