已知一个整数序列A=(a0,a1,…,an-1),其中0≤AI<n(0≤i<n)。若存在ap1=ap2=…=apm=x且m>n/2(0≤pk<n,1≤k≤m),则称x为A的主元素。例如A= ( 0,5,5,3,5,7,5,5 ),则5为主元素;又如A= ( 0,5,5,3,5,1,5,7 ),则A中没有主元素。 假设A中的n个元素保存在一个一维数组中,请设计一个尽可能高效的算法,找出A的主元素。若存在主元素,则输出该元素;否则输出-1。
上传时间: 2020-03-04
上传用户:霖1234
function [R,k,b] = msc(A) % 多元散射校正 % 输入待处理矩阵,通过多元散射校正,求得校正后的矩阵 %% 获得矩阵行列数 [m,n] = size(A); %% 求平均光谱 M = mean(A,2); %% 利用最小二乘法求每一列的斜率k和截距b for i = 1:n a = polyfit(M,A(:,i),1); if i == 1 k = a(1); b = a(2); else k = [k,a(1)]; b = [b,a(2)]; end end %% 求得结果 for i = 1:n AI = (A(:,i)-b(i))/k(i); if i == 1 R = AI; else R = [R,AI]; end end
上传时间: 2020-03-12
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Artificial Intelligence (AI) has undoubtedly been one of the most important buz- zwords over the past years. The goal in AI is to design algorithms that transform com- puters into “intelligent” agents. By intelligence here we do not necessarily mean an extraordinary level of smartness shown by superhuman; it rather often involves very basic problems that humans solve very frequently in their day-to-day life. This can be as simple as recognizing faces in an image, driving a car, playing a board game, or reading (and understanding) an article in a newspaper. The intelligent behaviour ex- hibited by humans when “reading” is one of the mAIn goals for a subfield of AI called Natural Language Processing (NLP). Natural language 1 is one of the most complex tools used by humans for a wide range of reasons, for instance to communicate with others, to express thoughts, feelings and ideas, to ask questions, or to give instruc- tions. Therefore, it is crucial for computers to possess the ability to use the same tool in order to effectively interact with humans.
标签: Embeddings Processing Language Natural in
上传时间: 2020-06-10
上传用户:shancjb
The Industrial Revolution, which started in England around 1760, has replaced human muscle power with the machine. Artificial intelligence (AI) AIms at replacing human intelligence with the machine. The work on artificial intelligence started in the early 1950s, and the term itself was coined in 1956.
标签: Fundamentals Intelligence Artificial New the of
上传时间: 2020-06-10
上传用户:shancjb
Artificial Intelligence (AI) is a big field, and this is a big book. We have tried to explore the full breadth of the field, which encompasses logic, probability, and continuous mathematics; perception, reasoning, learning, and action; and everything from microelectronic devices to robotic planetary explorers. The book is also big because we go into some depth. The subtitle of this book is “A Modern Approach.” The intended meaning of this rather empty phrase is that we have tried to synthesize what is now known into a common frame- work, rather than trying to explAIn each subfield of AI in its own historical context. We apologize to those whose subfields are, as a result, less recognizable.
标签: A-Modern-Approach Intelligence
上传时间: 2020-06-10
上传用户:shancjb
苹果:苹果公司发布首份人工智能报告,AI视觉是研究新方向。值得好好学学习!
标签: 人工智能
上传时间: 2022-04-27
上传用户:slq1234567890
1997年,国际象棋名家卡斯帕罗夫象棋对弈IBM超级电脑深蓝,最后结果是大师输了。2016年,世界顶级围棋高手李世石与AI围棋对决,最后竟以1:4惨败于谷歌阿尔法狗。今年4月,AI电竞团队OpenAI Five与人类战队对决《dota》,2:0 完胜世界冠军OG战队。人工智能凭什么能够战胜人类?答案是AI背后的超级计算机算力。AI通过算力处理大量的相关数据,并以神经网络不断学习成长,最终获得技能,战胜人类选手。算力经济,算力时代,算力改变世界,算力驱动未来。现在很多领域都在谈论算力,到底什么是算力?
标签: 人工智能
上传时间: 2022-05-30
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时下智能语音交互市场火热,越来越多的设备都开始支持远场AI语音交互。例如:智能音箱,智能电视等等。但这类产品的识别率和误唤醒率还需再不断的优化提升,以至于日常生活中人们还是离不开各式各样的遥控器。而蓝牙语音遥控器这一产品,作为远场语音交互的一个近场配件,也搭上了这趟语音交互的快速列车,成长速度令人惊讶。基于Actions炬芯的ATB1103芯片的语音遥控器,打造了一个AIoT时代的高性价比精品。遥控器总体架构分四层,从上到下依次为应用层、应用框架层、硬件抽象层、底层驱动层:
上传时间: 2022-06-02
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ADS1256 是TI(Texas I nstruments )公司推出的一款低噪声高分辨率的24 位Si gma - Delta("- #)模数转换器(ADC)。"- #ADC 与传统的逐次逼近型和积分型ADC 相比有转换误差小而价格低廉的优点,但由于受带宽和有效采样率的限制,"- #ADC 不适用于高频数据采集的场合。该款ADS1256 可适合于采集最高频率只有几千赫兹的模拟数据的系统中,数据输出速率最高可为30K 采样点/秒(SPS),有完善的自校正和系统校正系统, SPI 串行数据传输接口。本文结合笔者自己的应用经验,对该ADC 的基本原理以及应用做简要介绍。ADs1256 的总体电气特性下面介绍在使用ADs1256 的过程中要注意的一些电气方面的具体参数:模拟电源(AVDD )输入范围+ 4 . 75V !+ 5 .25V,使用的典型值为+ 5 .00V;数字电源(DVDD )输入范围+ 1 . 8V !+ 3 .6V,使用的典型值+ 3 .3V;参考电压值(VREF= VREFP- VREFN)的范围+ 0 .5V!+ 2 .6V,使用的典型值为+ 2 .5V;耗散功率最大为57mW;每个模拟输入端(AI N0 !7 和AI NC M)相对于模拟地(AGND)的绝对电压值范围在输入缓冲器(BUFFER)关闭的时候为AGND-0 .1 !AVDD+ 0 . 1 ,在输入缓冲器打开的时候为AGND !AVDD-2 .0 ;满刻度差分模拟输入电压值(VI N = AI NP -AI NN)为+ /-(2VREF/PGA);数字输入逻辑高电平范围0 .8DVDD!5 .25V(除D0 !D3 的输入点平不可超过DVDD 外),逻辑低点平范围DGND!0 .2DVDD;数字输出逻辑高电平下限为0 .8DVDD,逻辑低电平上限为0 .2DVDD,输出电流典型值为5mA;主时钟频率由外部晶体振荡器提供给XTAL1和XTAL2 时,要求范围为2 M!10 MHz ,仅由CLKI N 输入提供时,范围为0 .1 M!10 MHz 。
上传时间: 2022-06-10
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玄铁C910指令集手册,是一款基于RISC-V指令集的高性能处理器,采用12级乱序执行流水线、高精度混合分支预测器,并搭载AI扩展指令的异构处理器,可用于音视频处理等应用领域。
上传时间: 2022-06-18
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