517 research outputs found
FastDeepIoT: Towards Understanding and Optimizing Neural Network Execution Time on Mobile and Embedded Devices
Deep neural networks show great potential as solutions to many sensing
application problems, but their excessive resource demand slows down execution
time, pausing a serious impediment to deployment on low-end devices. To address
this challenge, recent literature focused on compressing neural network size to
improve performance. We show that changing neural network size does not
proportionally affect performance attributes of interest, such as execution
time. Rather, extreme run-time nonlinearities exist over the network
configuration space. Hence, we propose a novel framework, called FastDeepIoT,
that uncovers the non-linear relation between neural network structure and
execution time, then exploits that understanding to find network configurations
that significantly improve the trade-off between execution time and accuracy on
mobile and embedded devices. FastDeepIoT makes two key contributions. First,
FastDeepIoT automatically learns an accurate and highly interpretable execution
time model for deep neural networks on the target device. This is done without
prior knowledge of either the hardware specifications or the detailed
implementation of the used deep learning library. Second, FastDeepIoT informs a
compression algorithm how to minimize execution time on the profiled device
without impacting accuracy. We evaluate FastDeepIoT using three different
sensing-related tasks on two mobile devices: Nexus 5 and Galaxy Nexus.
FastDeepIoT further reduces the neural network execution time by to
and energy consumption by to compared with the
state-of-the-art compression algorithms.Comment: Accepted by SenSys '1
Utilizing Internet Analysis Technology to Conduct Data Analysis of Student Attitude Survey
Language attitude is people’s understanding and evaluation of languages, which has an important effect on language learning. Based upon investigation into 605 Tibetan college students from 5 colleges in Tibet areas, and combined with network data, this paper mainly analyzes their attitude towards Tibetan, Chinese and English from four dimensions: recognizing, instrumental, integrative and transferring attitude. This paper also discusses the relationship between students’ language attitude and their gender and grade. This study utilizes internet analysis technology to analyze data obtained from a student attitude survey. The survey was conducted to examine the attitudes of students towards a particular educational program. The study includes a description of the survey instrument and the method used to collect data. The data collected was analyzed using various statistical techniques, including frequency analysis and correlation analysis. The findings reveal important insights into student attitudes towards the program and highlight areas of improvement for the program. The use of internet analysis technology proved to be an efficient and effective method of data analysis in this study. The study contributes to the growing body of knowledge on data analysis in educational research and provides useful information for educators and policymakers
Stability of the Minimum Energy Path
The minimum energy path (MEP) is the most probable transition path that
connects two equilibrium states of a potential energy landscape. It has been
widely used to study transition mechanisms as well as transition rates in the
fields of chemistry, physics, and materials science. % In this paper, we derive
a novel result establishing the stability of MEPs under perturbations of the
energy landscape. The result also represents a crucial step towards studying
the convergence of numerical discretisations of MEPs
On the asymptotic behavior of p-superharmonic functions at singularities
In this paper we develop the p-thinness and the p-fine topology for the
asymptotic behavior of p-superharmonic functions at singular points. We
consider these as extensions of earlier works on superharmonic functions in
dimension 2, on the Riesz and Log potentials in higher dimensions,, and on
p-harmonic functions. It is remarkable that, contrary to the above cases, the
p-thinness for the singular behavior differs from the p-thinness for continuity
by the Wiener criterion for p-superharmonic functions. As applications of
asymptotic estimates of p-superharmonic functions, we also obtain asymptotic
estimates of solutions to a class of fully nonlinear elliptic equations. This
paper grows out of our recent papers on the potential theory in conformal
geometry.Comment: 26 page
Influence Factors of Exporting EU Vehicle to China
China, the world’s largest developing country, is the world’s important force to promote the development of the global economy. In the context of globalization and the rapid change of the pattern, China's strategic position is becoming more and more important. However, as the rise of unilateral, world trade frictions are increasing. In the future, EU should focus on the China’s trade and economic cooperation with foreign common policy and guiding principles and should pay attention to expand export and import cooperation between China, and what’s more based on China’s huge potential market needed, EU should pay more attention on the car filed. Due to the background of American’s unilateral protectionism, the trade relations between US, EU and China become more and more strained, therefore in order to achieve the purpose of mutual benefit and win-win results between China and EU, we need to further strengthen China-EU comprehensive strategic partnership
Influence Factors of Exporting EU Vehicle to China
China, the world’s largest developing country, is the world’s important force to promote the development of the global economy. In the context of globalization and the rapid change of the pattern, China's strategic position is becoming more and more important. However, as the rise of unilateral, world trade frictions are increasing. In the future, EU should focus on the China’s trade and economic cooperation with foreign common policy and guiding principles and should pay attention to expand export and import cooperation between China, and what’s more based on China’s huge potential market needed, EU should pay more attention on the car filed. Due to the background of American’s unilateral protectionism, the trade relations between US, EU and China become more and more strained, therefore in order to achieve the purpose of mutual benefit and win-win results between China and EU, we need to further strengthen China-EU comprehensive strategic partnership.
BiologÃa pesquera de la pota gigante Dosidicus gigas en aguas exteriores a la Zona Económica Exclusiva de Chile
The jumbo flying squid Dosidicus gigas is widely distributed in the eastern Pacific Ocean and supports an important fishery. Although many studies have been carried out on the biology of this species, limited biological information is available in the waters outside the Exclusive Economic Zone of Chile (EEZ) (20°S-41°S and 74°30’W-84°W). Three surveys were conducted in this area by the Chinese squid jigging vessels during the period from April 2006 to May 2008. The majority of the catch in the survey was from the two areas defined by 37°30’-41°S and 78°30’-80°W and by 25°-30°S and 76°-77°30’W. The sex ratio (M: F) of the catch was 1: 2.48. The mean mantle length (ML) was 376 mm for males with a range of 257-721 mm and 388.7 mm for females with a range of 236-837 mm. Two distinguished size classes, medium- and large-sized groups, were identified in this study with the medium-sized group (350-450 mm ML) consisting of 89% of the total catch. The sizes at first sexual maturity were 638 mm ML for females and 565 mm ML for males. This study suggests that all the individuals examined were hatched from March 2007 to February 2008, indicating that D. gigas might spawn all year around with a peak spawning time from November 2007 to January 2008. Most of the stomachs analyzed had food remains. The preys included three major groups: fish (mainly lanternfish), cephalopods and crustaceans, but D. gigas was the dominant species in the stomach contents, showing strong evidence of cannibalism. The information obtained from this study improves our understanding of the fishery biology of D. gigas off Chile.La pota gigante Dosidicus gigas está ampliamente distribuida en el océano PacÃfico oriental y soporta una pesquerÃa importante. Aunque se han realizado muchos estudios sobre la biologÃa de esta especie, la información existente para aguas externas a la Zona Económica Exclusiva (ZEE) de Chile (20ºS-41ºS y 74º30’W-84ºW) es muy limitada. Los barcos poteros chinos realizaron tres campañas en esta área entre abril de 2006 y mayo de 2008. La mayorÃa de las capturas en esas campañas proceden de dos áreas definidas por las coordenadas 37º31’S-41ºS 78º30’W-80ºW y 25ºS-30ºS 76ºW-77º30’W, respectivamente. La relación sexual (M:H) en las capturas fue de 1:2.48. La longitud media del manto (LM) fue de 376 mm para los machos con un rango que varió entre 257 y 721 mm, y de 388.7 mm para las hembras (236-837 mm). Se diferenciaron dos clases de tamaño: un grupo medio, cuya LM varió entre 350 y 450 mm representando un 89% de la captura total, y un grupo grande. La talla de primera maduración sexual fue de 638 mm para las hembras y de 565 mm para los machos. Este trabajo sugiere que todos los individuos examinados habÃan nacido entre marzo de 2007 y febrero de 2008, lo cual indica que D. gigas puede frezar durante todo el año, habiendo existido un pico de puesta desde noviembre de 2007 hasta enero de 2008. La mayorÃa de los estómagos analizados contenÃan restos. Las presas incluyen tres grandes grupos de organismos: peces (principalmente mictófidos), cefalópodos y crustáceos. Sin embargo, D. gigas fue la presa dominate en los contenidos estomacales, lo cual es una evidencia del fuerte canibalismo existente en esta especie. La información que se deriva de este trabajo mejora nuestro conocimiento sobre la biologÃa de D. gigas frente a Chile
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