排列5走势图

深度学习中CNN、RNN、DNN的区别有哪些?

发布时间:2019-12-20 12:00:00
阅读量:239
作者:猎维人工智能培训
[导读]:
我们知道,目前,深度学习十分热门,深度学习在搜索技术,数据挖掘,机器学习,机器翻译,自然语言处理,多媒体学习,语音,推荐和个性化技术,以及其他相关领域都取得了很多成果。深度学习使机器模仿视听和思考等人类的活动,解决了很多复杂的模式识别难题,使得人工智能相关技术取得了很大进步。

CONGGUANGYISHANGLAISHUO,NN(HUOSHIGENGMEIDEDNN)KEYIRENWEIBAOHANLECNN、RNNZHEIXIEJUTIDEBIANZHONGXINGSHI。SHENJINGWANGLUOJISHUQIYUANYUSHANGSHIJIWU、LIUSHINIANDAI,DANGSHICHENGWEIGANZHIJI(perceptron),YONGYOUSHURUCENG、SHUCHUCENGHEYIGEYINHANCENG。SHURUDETEZHENGXIANGLIANGTONGGUOYINHANCENGBIANHUANDADAOSHUCHUCENG,ZAISHUCHUCENGDEDAOFENLEIJIEGUO。ZAOQIGANZHIJIDETUIDONGZHESHIRosenblatt。DANSHI,RosenblattDEDANCENGGANZHIJIYOUYIGEYANZHONGDEBUNENGZAIYANZHONGDEWENTI,DUIYUJISUANSHAOWEIFUZADEHANSHUQIJISUANLIXIANDEWUNENGWEILI。

多层感知机的出现:随着数学的发展,这个缺点直到上世纪八十年代才被Rumelhart、Williams、Hinton、LeCun等人发明的多层感知机(multilayer perceptron)克服。多层感知机,顾名思义,就是有多个隐含层的感知机,我们看一下多层感知机的结构。神经网络技术起源于上世纪五、六十年代

DUOCENGGANZHIJIKEYIBAITUOZAOQILISANCHUANSHUHANSHUDESHUFU,SHIYONGsigmoidHUOtanhDENGLIANXUHANSHUMONISHENJINGYUANDUIJILIDEXIANGYING,ZAIXUNLIANSUANFASHANGZESHIYONGWerbosFAMINGDEFANXIANGCHUANBOBPSUANFA。DUI,ZHEIJIUSHIWOMENXIANZAISUOSHUODESHENJINGWANGLUO(NN)!DUOCENGGANZHIJIJIEJUELEZHIQIANWUFAMONIYIHUOLUOJIDEQUEXIAN,TONGSHIGENGDUODECENGSHUYERANGWANGLUOGENGNENGGOUKEHUAXIANSHISHIJIEZHONGDEFUZAQINGXING。DUOCENGGANZHIJIJIWOMENDAILAIDEQISHISHI,SHENJINGWANGLUODECENGSHUZHIJIEJUEDINGLETADUIXIANSHIDEKEHUANENGLI——LIYONGMEICENGGENGSHAODESHENJINGYUANNIHEGENGJIAFUZADEHANSHU。

DNN 深度神经网络

排列5走势图2006NIAN,HintonLIYONGYUXUNLIANFANGFAHUANJIELEJUBUZUIYOUJIEWENTI,JIANGYINHANCENGTUIDONGDAOLE7CENG。SHENJINGWANGLUOZHENZHENGYIYISHANGYOULE“SHENDU”,YOUCIJIEKAILESHENDUXUEXIDERECHAO。

排列5走势图ZHEILIDE“SHENDU”BINGMEIYOUGUDINGDEDINGYI——ZAIYUYINSHIBIEZHONG4CENGWANGLUOJIUNENGGOUBEIRENWEISHI“JIAOSHENDE”,ERZAITUXIANGSHIBIEZHONG20CENGYISHANGDEWANGLUOLVJIANBUXIAN。WEILEKEFUTIDUXIAOSHI,ReLU、maxoutDENGCHUANSHUHANSHUDAITILE sigmoid,XINGCHENGLERUJIN DNN DEJIBENXINGSHI。DANCONGJIEGOUSHANGLAISHUO,QUANLIANJIEDEDNNHESHANGTUDEDUOCENGGANZHIJISHIMEIYOURENHEQUBIEDE。ZHIDEYITIDESHI,JINNIANCHUXIANDEGAOSUGONGLUWANGLUO(highway network)HESHENDUCANCHAXUEXI(deep residual learning)JINYIBUBIMIANLETIDUMISANWENTI,WANGLUOCENGSHUDADAOLEQIANSUOWEIYOUDEYIBAIDUOCENG(SHENDUCANCHAXUEXI:152CENG)。

同一个卷积核在所有图像内是共享的

CNN 卷积神经网络

排列5走势图WOMENKANDAOQUANLIANJIEDNNDEJIEGOULIXIACENGSHENJINGYUANHESUOYOUSHANGCENGSHENJINGYUANDOUNENGGOUXINGCHENGLIANJIE,DAILAIDEQIANZAIWENTISHICANSHUSHULIANGDEPENGZHANG。JIASHESHURUDESHIYIFUXIANGSUWEI1K*1KDETUXIANG,YINHANCENGYOU1MGEJIEDIAN,GUANGZHEIYICENGJIUYOU10^12GEQUANZHONGXUYAOXUNLIAN,ZHEIBUJINRONGYIGUONIHE,ERQIEJIRONGYIXIANRUJUBUZUIYOU。

LINGWAI,TUXIANGZHONGYOUGUYOUDEJUBUMOSHI(BIRULUNKUO、BIANJIE,RENDEYANJING、BIZI、ZUIDENG)KEYILIYONG,XIANRANYINGGAIJIANGTUXIANGCHULIZHONGDEGAINIANHESHENJINGWANGLUOJISHUXIANGJIEHE。CISHIWOMENKEYIJICHUTIZHUSUOSHUODEJUANJISHENJINGWANGLUOCNN。DUIYUCNNLAISHUO,BINGBUSHISUOYOUSHANGXIACENGSHENJINGYUANDOUNENGZHIJIEXIANGLIAN,ERSHITONGGUO“JUANJIHE”ZUOWEIZHONGJIE。TONGYIGEJUANJIHEZAISUOYOUTUXIANGNEISHIGONGXIANGDE,TUXIANGTONGGUOJUANJICAOZUOHOURENGRANBAOLIUYUANXIANDEWEIZHIGUANXI。

排列5走势图JUANJICENGZHIJIANDEJUANJICHUANSHUDESHIYITURUXIA:

神经网络真正意义上有了深度

RNN 循环神经网络

QUANLIANJIEDEDNNHAICUNZAIZHELINGYIGEWENTI——WUFADUISHIJIANXULIESHANGDEBIANHUAJINXINGJIANMO。RANER,YANGBENCHUXIANDESHIJIANSHUNXUDUIYUZIRANYUYANCHULI、YUYINSHIBIE、SHOUXIETISHIBIEDENGYINGYONGFEICHANGZHONGYAO。DUILESHIYINGZHEIZHONGXUQIU,JIUCHUXIANLELINGYIZHONGSHENJINGWANGLUOJIEGOU——XUNHUANSHENJINGWANGLUORNN。

排列5走势图ERZAIRNNZHONG,SHENJINGYUANDESHUCHUKEYIZAIXIAYIGESHIJIANCHUOZHIJIEZUOYONGDAOZISHEN,JIDIiCENGSHENJINGYUANZAImSHIKEDESHURU,CHULE(i-1)CENGSHENJINGYUANZAIGAISHIKEDESHUCHUWAI,HAIBAOHANLEQIZISHENZAI(m-1)SHIKEDESHUCHU。RNNKEYIKANCHENGYIGEZAISHIJIANSHANGCHUANDIDESHENJINGWANGLUO,TADESHENDUSHISHIJIANDEZHANGDU!ZHENGRUWOMENSHANGMIANSUOSHUO,“TIDUXIAOSHI”XIANXIANGYOUYAOCHUXIANLE,ZHIBUGUOZHEICIFASHENGZAISHIJIANZHOUSHANG。DUIYUtSHIKELAISHUO,TACHANSHENGDETIDUZAISHIJIANZHOUSHANGXIANGLISHICHUANBOJICENGZHIHOUJIUXIAOSHILE,GENBENJIUWUFAYINGXIANGTAIYAOYUANDEGUOQU。

排列5走势图YINCI,ZHIQIANSHUO“SUOYOULISHI”GONGTONGZUOYONGZHISHILIXIANGDEQINGKUANG,ZAISHIJIZHONG,ZHEIZHONGYINGXIANGYEJIUZHINENGWEICHIRUOGANGESHIJIANCHUO。WEILEJIEJUESHIJIANSHANGDETIDUXIAOSHI,JIQIXUEXILINGYUFAZHANCHULEZHANGDUANSHIJIYIDANYUAN LSTM,TONGGUOMENDEKAIGUANSHIXIANSHIJIANSHANGJIYIGONGNENG,BINGFANGZHITIDUXIAOSHI。

更多资讯