A Hebbian learning algorithm based on proportion sampling is presented that can be used to implement on-chip learning for a binary spiking neural network. A correlation filter estimates when statistical independence h...
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A Hebbian learning algorithm based on proportion sampling is presented that can be used to implement on-chip learning for a binary spiking neural network. A correlation filter estimates when statistical independence has been obtained between subsequent samples. Simulation shows that the correlation filter reduces falsely learned connections in environments were inputs are randomly activated an average of 83% of the total time. A correlation filter for 255 binary samples is implemented using 21 gates and a surface area of .0008cm2 for a .5μ fabrication process. Compared to traditional neural networks, the spiking neural network learned an odor in a single epoch resulting in only a 7% error, while classical learning algorithms required multiple epochs and typically resulted in 30% error.
An intensive operating period (IOP) was conducted at the U. S. department of Energy's atmospheric radiation measurement (ARM) program's field site near Barrow, Alaska, during March 9 to April 9 2004. During th...
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An intensive operating period (IOP) was conducted at the U. S. department of Energy's atmospheric radiation measurement (ARM) program's field site near Barrow, Alaska, during March 9 to April 9 2004. During this IOP, radiometers were deployed over a broad frequency range (22.235 to 380 GHz), including several channels near the strong water vapor absorption line at 183.31 GHz. These radiometers were supplemented by 4-times-a-day observations by Vaisala RS90 radiosondes at the ARM Duplex in Barrow, 8 dual-radiosonde launches with "Snow White" chilled mirror radiosondes at the same location, once daily Vaisala RS90 radiosondes launched at the ARM primary field site, and twice-daily synoptic launches by the US National Weather Service. Radiometers deployed included the ground-based scanning radiometer of NOAA (several frequencies from 50 to 380 GHz), the microwave radiometer and the radiometric profiler of ARM (frequencies from 22.235 to 60 GHz), and a global positioning system operated by NOAA. In addition, all of the ARM active cloud sensors were operated. Selected results from this experiment are presented, including observed radiometric sensitivities to precipitable water vapor and liquid water path, radiosonde comparisons between radiosondes types and to MWRP measurements, and a preliminary comparison of forward models with GSR data
We have proposed an inductive (magnetic shielding) type of superconducting fault current limiter which consists of a high Tc superconducting plate in doughnut shape and spiral coil as the primary winding. In this pape...
Automated analysis of object-oriented design models can provide insight into the quality of a given software design. Data obtained from automated analysis, however, is often too complex to be easily understood by a de...
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In this paper, a framework for replacing missing values in a database is proposed since a real-world database is seldom complete. Good data quality in a database can directly improve the performance of any data mining...
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Large bandwidth, guaranteed quality of service (QoS), and ease of deployment, coupled with great advancements in semiconductor technologies for wireless devices make third generation (3G) wireless networks a very attr...
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Large bandwidth, guaranteed quality of service (QoS), and ease of deployment, coupled with great advancements in semiconductor technologies for wireless devices make third generation (3G) wireless networks a very attractive solution for mobile users to access the Internet. 3G wireless networks will support interactive multimedia services, so QoS support is crucial. In this paper, we briefly survey 3G network architecture and specifications for supporting QoS, using UMTS as a specific example. We also identify the problems of end-to-end QoS provisioning in the context of UMTS interworking with other public networks that form the Internet. To address these problems, we present potential solutions based on existing Internet QoS provisioning schemes.
The current drive in an MOSFET is limited by the intrinsic channel resistance. All the other parasitic elements in a device structure play a significant role and degrade the device performance. These other resistances...
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ISBN:
(纸本)0976798522
The current drive in an MOSFET is limited by the intrinsic channel resistance. All the other parasitic elements in a device structure play a significant role and degrade the device performance. These other resistances need to be less than 10%-20% of the channel resistance. To achieve the requirements, we should investigate the methodology of separation and quantification of those resistances. In this paper, we developed the extraction method of resistances using calibrated TCAD simulation. The resistance of the extension region is also partially determined by the formation of a surface accumulation region that forms under the gate in the tail region of the extension profile. This resistance is strongly affected by the abruptness of the extension profile because the steeper the profile is, the shorter this accumulation region will be.
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