Daisuke Miyashita

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Recent advances in convolutional neural networks have considered model complexity and hardware efficiency to enable deployment onto embedded systems and mobile devices. For example, it is now well-known that the arithmetic operations of deep networks can be encoded down to 8-bit fixed-point without significant deterioration in performance. However, further(More)
Hokkaido virus (HOKV) is a member of the genus Hantavirus, in the family Bunyaviridae. To investigate HOKV infection in the host Myodes rufocanus, the grey red-backed vole, 199 animals were captured at Tobetsu (October 2004 and July 2005) and Nakagawa (October 2004) in Hokkaido, Japan, for detection of antibody, antigen, and viral RNA. In the surveys in(More)
A variety of hantaviruses are harbored by rodents in North and South America, some of which can cause hantavirus pulmonary syndrome. To obtain greater evolutionary insight into hantaviruses in the Americas, a total of 211 rodents were captured in the Mexican states of Guerrero and Morelos in 2006. Anti-hantavirus antibodies were detected in 27 of 211 serum(More)
We present the concept of logarithmic computation for neural networks. We explore how logarithmic encoding of non-uniformly distributed weights and activations is preferred over linear encoding at resolutions of 4 bits and less. Logarithmic encoding enables networks to 1) achieve higher classification accuracies than fixed-point at low resolutions and 2)(More)
Several para-substituted derivatives of 4-phenyl-2-butanone (I) have proved to be powerful attractants for the male melon fly (Dacus clucurbitae). These compounds, unlike anisylacetone, heretofore the best lure, attract even newly emerged flies. The most potent analog is 4-(p-acetoxyphenyl)-2-butanone (II), which also strongly attracts Dacus ochrosiae males.
An automatic amplitude control circuit to minimize the phase noise of a LC-VCO is proposed and implemented by a 0.18-/spl mu/m CMOS process. The phase noise lower than -90dBc/Hz at 100kHz offset is achieved over a wide tuning range (from 2.2GHz to 2.8GHz) under large process (/spl Delta/V/sub th/ = /spl plusmn/100mV), temperature (from /spl sim/35/spl deg/C(More)