Kodi munayamba mwafunsapo kuti galimoto yodziyendetsa yokha imadziwa nthawi yoyima pa kuwala kofiira kapena momwe foni yanu ingadziwire nkhope yanu?
Apa ndipamene Convolutional Neural Network kapena CNN mwachidule imabwera.
CNN ikufanana ndi ubongo wamunthu womwe umatha kusanthula zithunzi kuti zidziwe zomwe zikuchitika mwa iwo. Maukondewa amatha kuzindikira ngakhale zinthu zomwe anthu sangazizindikire!
Mu positi iyi, tifufuza CNN mu kuphunzira kwakukulu nkhani. Tiyeni tione zimene dera losangalatsali lingatipatse!
Kodi Kuphunzira Mwakuya ndi Chiyani?
Kuphunzira mozama ndi mtundu wa nzeru zochita kupanga. Imathandiza makompyuta kuphunzira.
Kuphunzira mozama kumayendetsa deta pogwiritsa ntchito masamu ovuta. Chifukwa chake, kompyuta imatha kuzindikira mawonekedwe ndikugawa deta.
Pambuyo pophunzitsidwa ndi zitsanzo zambiri, imathanso kupanga zisankho.
Chifukwa Chiyani Timakonda Ma CNN pa Kuphunzira Mwakuya?
Convolutional Neural Networks (CNNs) ndi gawo lofunikira pakuphunzira mozama.
Amalola makompyuta kumvetsetsa zithunzi ndi zina zowonera. Titha kuphunzitsa makompyuta kuti azindikire mawonekedwe ndi kuzindikira zinthu malinga ndi zomwe "amawona" pogwiritsa ntchito ma CNN pophunzira mozama.
Ma CNN amakhala ngati maso akuphunzira mwakuya, kuthandiza makompyuta kumvetsetsa chilengedwe!
Kudzoza kuchokera ku Brain's Architecture
Ma CNN amatenga kudzoza kwawo kuchokera momwe ubongo umatanthauzira zambiri. Ma neurons Opanga, kapena ma node, mu CNNs, amavomereza zolowa, kuzikonza, ndikupereka zotsatira zake, monga momwe ma neuroni amachitira thupi lonse.
Lowetsani Gulu
Gawo lolowera la muyezo neural network imalandira zolowetsa m'njira zingapo, monga ma pixel azithunzi. Mu CNNs, chithunzi chimaperekedwa ngati cholowetsa ku gawo lolowera.
Zobisika Zobisika
Pali zigawo zingapo zobisika mu CNNs, zomwe zimagwiritsa ntchito masamu kuchotsa mbali pachithunzichi. Pali mitundu ingapo ya zigawo, kuphatikiza zolumikizana kwathunthu, zokongoletsedwa ndi mizere mizere, kuphatikiza, ndi zigawo za convolution.
Convolution Layer
Wosanjikiza woyamba kuchotsa zinthu kuchokera pachithunzi cholowetsa ndi convolution layer. Chithunzicho chimasefedwa, ndipo zotsatira zake ndi mapu omwe amawunikira zinthu zazikulu zachithunzichi.
Kuphatikizana Pambuyo pake
Kuphatikizikako kumagwiritsidwa ntchito kuchepetsa kukula kwa mapu. Zimalimbitsa kukana kwachitsanzo kusuntha malo a chithunzi cholowera.
Rectified Linear Unit Layer (ReLU)
Chosanjikiza cha ReLU chimagwiritsidwa ntchito kuti chipereke chitsanzo chosasinthika. Kutulutsa kwa gawo lapitalo kumayendetsedwa ndi wosanjikiza uwu.
Chigawo Cholumikizidwa Kwambiri
Chigawo cholumikizidwa kwathunthu chimayika chinthucho ndikuchipatsa ID yapadera pagawo lotulutsa ndi gawo lolumikizidwa kwathunthu.
CNNs ndi Feedforward Networks
Deta imangotuluka kuchokera ku zolowetsa kupita ku zotuluka mwanjira imodzi. Kapangidwe kake kamakhala kolimbikitsidwa ndi kotekisi yaubongo, yomwe imapangidwa ndi zigawo zosinthika za maselo oyambira komanso otsogola.
Kodi ma CNN amaphunzitsidwa bwanji?
Ganizirani kuti mukuyesera kuphunzitsa kompyuta kuzindikira mphaka.
Mumawonetsa zithunzi zambiri za amphaka pamene mukunena kuti, "Nayi mphaka." Pambuyo powona zithunzi zokwanira za amphaka, makompyuta amayamba kuzindikira makhalidwe monga makutu osongoka ndi ndevu.
Momwe CNN imagwirira ntchito ndizofanana. Zithunzi zingapo zili pakompyuta, ndipo mayina a zinthu pachithunzi chilichonse amaperekedwa.
Komabe, CNN imagawa zithunzizo kukhala tizidutswa tating'ono, monga zigawo. Ndipo, imaphunzira kuzindikira mawonekedwe m'magawo amenewo osati kungowona zithunzi zonse.
Chifukwa chake, gawo loyambirira la CNN limatha kuzindikira zoyambira monga m'mphepete kapena ngodya. Kenako, wosanjikiza wotsatira amamanga pamenepo kuti azindikire zatsatanetsatane monga mawonekedwe kapena mawonekedwe.
Zigawozi zimapitirizabe kusintha ndi kukulitsa makhalidwewo pamene kompyuta ikuwona zithunzi zambiri. Zimapitirira mpaka zitakhala zaluso kwambiri pakuzindikira chilichonse chomwe adaphunzitsidwa, kaya ndi amphaka, nkhope, kapena china chilichonse.
Chida Champhamvu Chophunzirira Mwakuya: Momwe CNNs Adasinthira Kuzindikirika kwa Zithunzi
Pozindikira ndi kupanga malingaliro azithunzi muzithunzi, ma CNN, asintha kuzindikira kwazithunzi. Popeza amapereka zotsatira zolondola kwambiri, ma CNN ndi omwe amamanga bwino kwambiri pakugawa zithunzi, kubweza, ndi kugwiritsa ntchito kuzindikira.
Nthawi zambiri amakhala ndi zotsatira zabwino. Ndipo, amaloza ndendende ndikuzindikira zinthu zomwe zili muzithunzi muzinthu zenizeni zenizeni.
Kupeza Mapangidwe Mugawo Lililonse la Chithunzi
Ziribe kanthu komwe chithunzi chikuwonekera pa chithunzi, ma CNN amapangidwa kuti azindikire. Amatha kutulutsa mawonekedwe kuchokera pamalo aliwonse pachithunzichi.
Izi ndizotheka chifukwa cha kuthekera kwawo komwe kumadziwika kuti "spatial invariance." Mwa kufewetsa njirayi, ma CNN amatha kuphunzira molunjika kuchokera pazithunzi popanda kufunikira kochotsa mawonekedwe amunthu.
Kuthamanga Kwambiri Kwambiri ndi Kuchepetsa Kukumbukira Kogwiritsidwa Ntchito
Ma CNN amakonza zithunzi mwachangu komanso moyenera kuposa momwe amachitira kale. Izi ndi zotsatira za magulu ophatikizana, omwe amachepetsa chiwerengero cha magawo omwe amafunikira kukonza chithunzi.
Mwanjira iyi, amachepetsa kugwiritsa ntchito kukumbukira komanso kukonza ndalama. Madera ambiri amagwiritsa ntchito ma CNN, monga; kuzindikira nkhope, kugawa mavidiyo, ndi kusanthula zithunzi. Azoloweranso gawani milalang'amba.
Zitsanzo zenizeni
Zithunzi za Google ndi njira imodzi yogwiritsira ntchito ma CNN mdziko lenileni omwe amawagwiritsa ntchito kuzindikira anthu ndi zinthu pazithunzi. Komanso, Azure ndi Amazon perekani ma API ozindikira zithunzi omwe amayika ndikuzindikira zinthu pogwiritsa ntchito ma CNN.
Njira yapaintaneti yophunzitsira ma neural network pogwiritsa ntchito ma dataset, kuphatikiza ntchito zozindikiritsa zithunzi, imaperekedwa ndi nsanja yophunzirira mwakuya. Zithunzi za NVIDIA.
Mapulogalamuwa akuwonetsa momwe ma CNN angagwiritsire ntchito ntchito zosiyanasiyana, kuyambira pazamalonda ang'onoang'ono mpaka kukonza zithunzi zanu. Zitsanzo zina zambiri zikhoza kuganiziridwa.
Kodi Convolutional Neural Networks Idzasintha Bwanji?
Zaumoyo ndi bizinesi yosangalatsa yomwe ma CNN akuyembekezeka kukhala ndi chikoka chachikulu. Mwachitsanzo, angagwiritsidwe ntchito kuyesa zithunzi zachipatala monga X-ray ndi MRI scans. Atha kuthandiza azachipatala kuti azindikire matenda mwachangu komanso molondola.
Magalimoto odziyendetsa okha ndi ntchito ina yosangalatsa pomwe ma CNN atha kugwiritsidwa ntchito pozindikiritsa zinthu. Ikhoza kuwongolera momwe magalimoto amamvetsetsera ndikuchitapo kanthu ndi malo omwe amakhalapo.
Chiwerengero chokwera cha anthu alinso ndi chidwi chopanga zida za CNN zomwe zimakhala zachangu komanso zogwira mtima, kuphatikiza ma CNN am'manja. Akuyembekezeka kugwiritsidwa ntchito pazida zamagetsi zotsika mphamvu monga mafoni am'manja ndi zovala.
Siyani Mumakonda