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
上传用户：15275387185
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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說明：1，测试交流电源（Test AC Power Supply）：A.中国（China）：AC 220V+/-2%50Hz+/-2%B.美国（United States of America）：AC 120V+/-2%60Hz+/-2%。C.英国（Britain）：AC 240V+/-2%50Hz+/-2%D.欧洲（Europe）：AC 230V+/-2%50Hz+/-2%E.日本（Japan）：AC 100V+/-2%60Hz+/-2%F.墨西哥（Mexico）：AC 127V+/-2%60Hz+/-2%2，测试温度条件（Test Temperature Conditions）：25℃+/-2℃。3，测试以右声道为准（Standard Test Use Right Channell）4，信号由AUX插座输入（Signal From AUX Jack Input）。5，测试以音量最大，音调和平衡在中央位置（电子音调在正常状态）。（Test Volume Setup Max，Equalizer And Balance Setup Center）。6，标准輸出（Standard Output）：A.输入1 KHz频率信号（Input 1 KHz Frequency Signal）B.左右声道输入信号测试右声道（L&R Input Signal Test Use R Channel）C.额定输出功率満（Rating Output Power Full）10 W，标准输出定为1w.（Rating Output Power Full 10 w，Standard Output Setup 1 W）D.额定输出功率1W到10w，标准输出定为500 mW（Rating Output Power 1 W To 10 W，Standard Output Setup 500 mW）E.额定输出功率小于1w，标准输出定为50 mW（Rating Output Power Not Full 1 W，Standard Output Setup 50 mW）F.标准輸出电压以V-VPR为准（Standard Output Voltage Use V-V/PR）。G.V-V/PR中P为额定输出功率，R为喇叭标称阻抗。
标签： 音响功放
上传时间： 2022-06-18
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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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