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1851.线性代数与机器学习的量子算法
[信息传输、软件和信息技术服务业] [2015-03-22]
We use quantum singular value estimation to obtain algorithms for low rank approximation by column selection, the algorithms are based on importance sampling from the leverage score distribution. We obtain quadratic speedups for a large class of linear algebra algorithms that rely on importance sampling from the leverage score distribution including approximate least squares and CX and CUR decompositions.
关键词：线性代数；机器学习；量子算法；量子；存储
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1852.关键工业环境中无线传感技术的应用
[信息传输、软件和信息技术服务业] [2015-03-22]
The work done in this thesis is experimental in nature and care is taken to bring the proposed ideas as close to real implementations as possible: the hardware is built using commercial off-the-shelf components, the networks are configured for the application at hand, and algorithms are devised and validated in each setting.
关键词：无线传感技术；工业环境；MEMS TSCH
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1853.逻辑与内存应用程序的自旋设备研究
[信息传输、软件和信息技术服务业] [2015-03-22]
In this dissertation, we focus on a subset of spin logic devices known as nanomagnetic logic.Using a variety of modeling techniques and experimental imaging techniques, weinvestigate the performance of these devices in terms of speed and reliability. We also useoptical techniques to investigate a spin-charge coupling mechanism known as the Spin HallEffect. This effect is a very power-efficient way to switch nanomagnets and has obviousapplications to both spin logic and memory.
关键词：逻辑设备；自旋电子设备；纳磁逻辑
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1854.逻辑电路与弹性技术开销中的辐射所致软错误建模
[信息传输、软件和信息技术服务业] [2015-03-22]
Given a target FIT rate, how can we meet this target while incurring the smallest energy overhead? Each resiliency technique improves FIT rate by some amount, but also increases energy consumption. We quantify both these values using both custom and commercial software to optimally harden a microprocessor.
关键词：逻辑电路；弹性技术；软错误；辐射模型
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1855.大数据中有界误差与有界响应时查询方法
[信息传输、软件和信息技术服务业] [2015-03-22]
BlinkDB allows users to trade-off query accuracy for response time, enabling interactive queries over massive data by running queries on data samples and presenting results annotated with meaningful error bars.We evaluate BlinkDB extensively against well-known database benchmarks and a number of real-world analytic workloads showing that it is possible to implement an end-to-end query approximation pipeline that produces approximate answers with reliable error bars at interactive speeds.
关键词：有界误差；有界响应时；BlinkDB 大数据
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1856.集群数据收集
[信息传输、软件和信息技术服务业] [2015-03-22]
Hybrid human/machine database and search systems promise to greatly expand the usefulness of query processing by incorporating human knowledge and experience via “crowdsourcing” into existing systems for data gathering and other tasks. Of course, such systems raise many implementation questions. For example, how can we reason about query result quality in a hybrid system?How can we best combine the benefits of machine computation and human computation? In this thesis we describe how we attacked these challenges by developing statistical tools that enable users and systems developers to reason about query completeness in hybrid database systems, as well as combining human and automated processing in search engines. We present evaluations of these techniques using experiments run on a popular crowdsourcing platform, Amazon’s Mechanical Turk.
关键词：数据收集；机器算法；人工计算；众包平台
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1857.未来低功率电子设备的高效开关晶体管研究
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2015-03-22]
In this research, two approaches to achieve transistors with sub-60mV/dec swing are explored. Feedback FET (FBFET) uses positive feedback to induce an abrupt change in current with a small change in the gate voltage. Experimental results show FBFET can achieve less than 2mV/dec swing, with Ion/Ioff ratio larger than six-orders-of-magnitude. Simulation is used to illustrate the operating principle, and to evaluate the potential of FBFET. Another approach is to integrate negative capacitance element onto the gate stack of MOSFETs. The negative capacitance does not change the transport physics, but rather seeks to “amplify” the gate voltage electrostatically to achieve less than 60mV/dec swing.
关键词：低功率电子设备；开关比；功率场效应；晶体管
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1858.采用稀疏矩阵向量乘法的细分曲面求值法
[信息传输、软件和信息技术服务业] [2015-03-22]
We present an interpretation of subdivision surface evaluation in the language of linear algebra. Specifically, the vector of surface points can be computed by left-multiplying the vector of control points by a sparse subdivision matrix. This “matrix-driven” interpretation applies to any level of subdivision, holds for many common subdivision schemes (including Catmull-Clark and Loop), supports limit surface evaluation, allows semi-sharp creases, and complements feature-adaptive optimizations. It is primarily applicable to static meshes undergoing deformation (i.e. animation), in which case the subdivision matrix is invariant over time and the surface can be evaluated at each frame with a single sparse matrix-vector multiplication (SpMV).
关键词：细分曲面求值；稀疏矩阵；细分矩阵；矩阵乘法；向量
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1859.无线神经接口集成电路的脉冲功率调制与刺激
[信息传输、软件和信息技术服务业] [2015-03-22]
This work presents two systems which utilize wireless techniques to mitigate this electand create high-density, long-terminter faces with the human brain.Compared to the state of the art neural SoCs, this represents the lowest area and power for thehighest integration complexity achieved to date.
关键词：脑机接口；集成电路；CMOS 脉冲功率调制
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1860.单片机行星传动的高分辨率低功耗ASIC光谱仪设计
[信息传输、软件和信息技术服务业] [2015-03-22]
The focus of this work is on a spectrometer ASIC with spectral resolution of 183kHz and a bandwidth of 1.5GHz, twice that of its predecessor. Furthermore, these specifications are met on a chip with a footprint of less than 10mm2 and which consumes less than 1W of power. This represents a significant advantage over all previous work. The high bandwidth and low power were achieved primarily through the integration of a 3GS/s time-interleaved ADC onto the chip. This work also focuses on the tools and design flow that were used to design this mixed-signal ASIC spectrometer in 65nm technology.
关键词：单片机；行星传动；ASIC 光谱仪
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