{"id":4823,"date":"2023-08-30T11:04:00","date_gmt":"2023-08-30T11:04:00","guid":{"rendered":"https:\/\/dailyai.com\/?p=4823"},"modified":"2024-03-28T00:44:33","modified_gmt":"2024-03-28T00:44:33","slug":"the-evolution-of-bio-inspired-ai-developments-and-future-direction","status":"publish","type":"post","link":"https:\/\/dailyai.com\/da\/2023\/08\/the-evolution-of-bio-inspired-ai-developments-and-future-direction\/","title":{"rendered":"Udviklingen af bio-inspireret AI: udvikling og fremtidig retning"},"content":{"rendered":"<p><b>Fra Ada Lovelace og Charles Babbage lagde grunden til Alan Turings banebrydende computerforskning, har verden v\u00e6ret betaget af l\u00f8ftet om kunstig intelligens - en dr\u00f8m om at skabe maskinbaserede enheder, der besidder menneskelignende kognitive evner.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Men senere vendte AI-udviklingen sig v\u00e6k fra sine biologiske r\u00f8dder til fordel for brutal regnekraft og algoritmisk kompleksitet.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dermed er science fiction-dr\u00f8mmene om livagtige robotter svundet lidt ind til en virkelighed med mere overfladisk verdslige store sprogmodeller (LLM'er) som ChatGPT. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Selvf\u00f8lgelig er de nuv\u00e6rende AI-modeller stadig f\u00e6ngslende, men de fungerer som et v\u00e6rkt\u00f8j snarere end et v\u00e6sen.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det er stadig tidligt, men p\u00e5 trods af f\u00e6nomenale fremskridt har AI's beregningsm\u00e6ssige v\u00e5benkapl\u00f8b afsl\u00f8ret huller i vores str\u00e6ben efter virkelig intelligente maskiner.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Uanset hvor kraftfulde vores algoritmer bliver, mangler de elegance, tilpasningsevne og energieffektivitet - kendetegnene for biologiske systemer. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det ved forskerne godt - og det frustrerer dem.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Professor Tony Prescott og Dr. Stuart Wilson fra University of Sheffield for nylig <\/span><a href=\"https:\/\/www.sheffield.ac.uk\/news\/ai-unlikely-gain-human-cognition-unless-connected-real-world-through-robots\"><span style=\"font-weight: 400;\">fremh\u00e6vet<\/span><\/a><span style=\"font-weight: 400;\"> at de fleste AI-modeller, som ChatGPT, er 'disembodied', hvilket betyder, at de mangler en direkte forbindelse til det fysiske milj\u00f8.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I mods\u00e6tning hertil har den menneskelige hjerne udviklet sig inden for et fysisk system - vores kroppe - som g\u00f8r det muligt for os at sanse og interagere direkte med verden.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Forskere er ivrige efter at frig\u00f8re AI fra deres monolitiske arkitektur, hvilket har f\u00f8rt til en genopblomstring af bioinspireret AI, ogs\u00e5 kaldet neuromorf AI, en underdisciplin, der s\u00f8ger at efterligne de komplekse processer, der findes i naturen, for at skabe smartere og mere effektive systemer.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Disse bestr\u00e6belser tr\u00e6kker p\u00e5 forskellige biologiske rammer, fra de strukturer, der udg\u00f8r vores hjerner, til sv\u00e6rmintelligens observeret hos myrer eller fugle.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I jagten p\u00e5 autonomi og effektivitet tvinger bioinspireret AI os til at unders\u00f8ge mange\u00e5rige beregningsproblemer, s\u00e5som at bev\u00e6ge os v\u00e6k fra ressourcetunge arkitekturer bygget af tusindvis af str\u00f8mslugende GPU'er til lettere, mere indviklede analoge systemer.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Prescott, som var medforfatter p\u00e5 en nylig artikel, \"<\/span><a href=\"https:\/\/www.science.org\/doi\/10.1126\/scirobotics.adg6014\"><span style=\"font-weight: 400;\">Forst\u00e5 hjernens funktionelle arkitektur gennem robotteknologi<\/span><\/a><span style=\"font-weight: 400;\">\"Det er meget mere sandsynligt, at AI-systemer vil udvikle menneskelignende kognition, hvis de er bygget med arkitekturer, der l\u00e6rer og forbedrer sig p\u00e5 samme m\u00e5de som den menneskelige hjerne ved at bruge dens forbindelser til den virkelige verden.\"<\/span><\/p>\n<figure id=\"attachment_4824\" aria-describedby=\"caption-attachment-4824\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4824 size-full\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163.jpg\" alt=\"Android\" width=\"1000\" height=\"527\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163.jpg 1000w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163-300x158.jpg 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163-768x405.jpg 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163-370x195.jpg 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163-800x422.jpg 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163-20x11.jpg 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163-740x390.jpg 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_2229125163-91x48.jpg 91w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-4824\" class=\"wp-caption-text\">De fleste skildringer af avancerede androider antager, at de har b\u00e5de en \"hjerne\" og et sansesystem og fungerer autonomt. I virkeligheden mangler vi stadig at overvinde mange af de udfordringer, der er forbundet med at bygge s\u00e5dan en robot. Kilde: Shutterstock: Shutterstock.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Den menneskelige hjerne er et godt eksempel - hver eneste tanke og handling, din hjerne fremkalder, kr\u00e6ver kun en svag p\u00e6res effekt - omkring 20 watt.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Og det g\u00e5r l\u00e6ngere end det. Selv n\u00e5r mennesker ikke f\u00e5r nogen ekstern energi fra mad, kan de overleve i over en m\u00e5ned. Ekstremofiler har fundet metoder til at trives i nogle af de mest ug\u00e6stfrie milj\u00f8er p\u00e5 planeten. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sammenlign det med den infrastruktur, der kr\u00e6ves for at drive AI-modeller som ChatGPT, som kr\u00e6ver str\u00f8m svarende til en lille by og ikke kan replikere sig selv, helbrede sig selv eller tilpasse sig sine omgivelser.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For at give AI en fair chance kan man argumentere for, at det er en forkert \u00f8velse at sammenligne AI med biologisk intelligente systemer.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">N\u00e5r alt kommer til alt, udm\u00e6rker computere og hjerner sig simpelthen ved forskellige opgaver - det er m\u00e5ske menneskets natur at smelte dem sammen i antropomorfe visioner om autonome AI'er, der interagerer med milj\u00f8et som de biologiske v\u00e6sener, vi har udviklet os ved siden af.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Men b\u00e5de AI-forskere og neuroforskere er villige til at g\u00e5 ind i dette intellektuelle d\u00f8dvande, og mange vil beskrive hjernen \"som en computer\", der kan modelleres og replikeres kunstigt.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Den <\/span><a href=\"https:\/\/dailyai.com\/da\/2023\/08\/exploring-impact-of-the-human-brain-project-hbp-on-science-and-ai\/\"><span style=\"font-weight: 400;\">EU's projekt om den menneskelige hjerne (HBP)<\/span><\/a><span style=\"font-weight: 400;\">et multinationalt eksperiment til n\u00e6sten $1 mia. i Big Science, var en lektion i, hvordan hjernens kompleksitet unddrager sig kunstig modellering. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">HBP satte sig for at modellere den menneskelige hjerne i sin helhed, men det lykkedes kun at modellere brudstykker af dens funktionalitet.\u00a0<\/span><\/p>\n<p>Vores hjerne <span style=\"font-weight: 400;\">-<\/span> som en enkelt enhed <span style=\"font-weight: 400;\">-<\/span> besejret de kollektive hjerner hos tusindvis af forskere med enorme midler og computerkraft lige ved h\u00e5nden <span style=\"font-weight: 400;\">- kald det<\/span> Poetisk retf\u00e6rdighed.<\/p>\n<p>Tilf\u00e6ldigvis er bevidstheden og essensen af tankedannelse en lige s\u00e5 fjern gr\u00e6nse til det yderste af rummet. <span style=\"font-weight: 400;\">- w<\/span>Vi er der bare ikke endnu.<\/p>\n<figure id=\"attachment_4556\" aria-describedby=\"caption-attachment-4556\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4556 size-large\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-1024x620.png\" alt=\"Hjerneatlas\" width=\"1024\" height=\"620\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-1024x620.png 1024w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-300x182.png 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-768x465.png 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-1536x930.png 1536w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-370x224.png 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-800x485.png 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-20x12.png 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-740x448.png 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-1600x969.png 1600w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas-79x48.png 79w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Brainatlas.png 1864w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-4556\" class=\"wp-caption-text\">Human Brain Project har kortlagt nogle aspekter af hjernens funktionalitet i \"atlas\". Kilde: <a href=\"https:\/\/www.ebrains.eu\/\">EBRAINS<\/a>.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Kernen i dette problem er koblingen mellem biologi og maskiner. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Mens neurale netv\u00e6rk og andre former for maskinl\u00e6ringsarkitektur (ML) er modelleret via analogi til biologiske hjerner, er beregningsmetoden fundamentalt anderledes.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Rodney Brooks, professor emeritus i robotteknologi ved MIT, reflekterede over dette d\u00f8dvande, <\/span><a href=\"https:\/\/www.nature.com\/articles\/482462a\"><span style=\"font-weight: 400;\">med angivelse af<\/span><\/a><span style=\"font-weight: 400;\">\"Der er en bekymring for, at hans version af beregning, der er baseret p\u00e5 funktioner af heltal, er begr\u00e6nset. Biologiske systemer er klart anderledes. De skal reagere p\u00e5 forskellige stimuli over lange tidsperioder; disse reaktioner \u00e6ndrer igen deres milj\u00f8 og efterf\u00f8lgende stimuli.\u00a0<\/span><span style=\"font-weight: 400;\">Sociale insekters individuelle adf\u00e6rd p\u00e5virkes f.eks. af strukturen i det hjem, de bygger, og deres s\u00f8skendes adf\u00e6rd i det.\"\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Brooks opsummerer dette paradoks ved at sp\u00f8rge: \"B\u00f8r disse maskiner modelleres efter hjernen, eftersom vores modeller af hjernen udf\u00f8res p\u00e5 s\u00e5danne maskiner?\"<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Rejsen med bio-inspireret AI<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Naturen har haft millioner af \u00e5r med 'R&amp;D' til at perfektionere sine utroligt modstandsdygtige mekanismer.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tendensen til bioinspireret AI kan ses som en kurs\u00e6ndring, en ydmyg erkendelse af, at vores s\u00f8gen efter avanceret AI m\u00e5ske har f\u00f8rt os ind p\u00e5 en vej, der, selv om den stadig er bl\u00e6ndende i sin kompleksitet, kan v\u00e6re uholdbar i det lange l\u00f8b. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Eller i det mindste opfylder den nuv\u00e6rende kurs m\u00e5ske ikke det, som menneskeheden i sidste ende s\u00f8ger fra AI. Hvis vi \u00f8nsker at leve i \"fremtiden\", hvor mennesker og robotter g\u00e5r side om side (selvom det selvf\u00f8lgelig ikke er alle, der \u00f8nsker det), s\u00e5 skal vi g\u00f8re mere end at samle flere GPU'er og tr\u00e6ne st\u00f8rre modeller.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">N\u00e5r det er sagt, er der h\u00e5b for de gl\u00f8dende futurister blandt os, da forskere har arbejdet med ideer om bioinspireret databehandling i \u00e5rtier, og nogle spekulative ideer er begyndt at finde fodf\u00e6ste.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I slutningen af 50'erne og begyndelsen af 60'erne var Frank Rosenblatts arbejde med <a href=\"https:\/\/en.wikipedia.org\/wiki\/Perceptron\">Perceptron<\/a> tilb\u00f8d den f\u00f8rste forenklede model af en biologisk neuron.\u00a0<\/span><\/p>\n<figure id=\"attachment_4828\" aria-describedby=\"caption-attachment-4828\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4828 size-full\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361.jpg\" alt=\"Perceptron\" width=\"1000\" height=\"787\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361.jpg 1000w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361-300x236.jpg 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361-768x604.jpg 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361-370x291.jpg 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361-800x630.jpg 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361-20x16.jpg 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361-740x582.jpg 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/NMAH-72-361-61x48.jpg 61w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-4828\" class=\"wp-caption-text\">Perceptron-computeren blev designet i slutningen af 1950'erne og var et tidligt fors\u00f8g p\u00e5 at simulere neurale netv\u00e6rk, der prim\u00e6rt blev brugt til billedgenkendelsesopgaver. Den fungerede som et proof-of-concept for maskinl\u00e6ring og illustrerede, at computere kunne tr\u00e6nes til at tr\u00e6ffe beslutninger baseret p\u00e5 data. Kilde: <a href=\"https:\/\/americanhistory.si.edu\/collections\/search\/object\/nmah_334414\">Museum of America<\/a>.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Men artiklen fra 1986 \"<\/span><a href=\"https:\/\/www.nature.com\/articles\/323533a0\"><span style=\"font-weight: 400;\">Indl\u00e6ring af repr\u00e6sentationer ved hj\u00e6lp af back-propagating-fejl<\/span><\/a><span style=\"font-weight: 400;\">\" af David Rumelhart, Geoffrey Hinton og Ronald Williams \u00e6ndrede spillet.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hinton og hans team, der nu ofte omtales som \"gudfaderen til neurale netv\u00e6rk (eller AI generelt)\", introducerede backpropagation-algoritmen, der giver en robust mekanisme til tr\u00e6ning af neurale netv\u00e6rk i flere lag, hvilket drev feltet ind i applikationer, der sp\u00e6nder fra naturlig sprogbehandling (NLP) til computersyn (CV) - to grundl\u00e6ggende grene af moderne AI.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kort tid efter tog bioinspirationen en anden vej og l\u00e5nte fra darwinistiske principper. John Hollands bog fra 1975 \"<\/span><a href=\"https:\/\/mitpress.mit.edu\/9780262581110\/adaptation-in-natural-and-artificial-systems\/\"><span style=\"font-weight: 400;\">Tilpasning i naturlige og kunstige systemer<\/span><\/a><span style=\"font-weight: 400;\">\" lagde grunden til genetiske algoritmer.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ved at simulere mekanismer som mutation og naturlig udv\u00e6lgelse \u00e5bnede denne tilgang op for et kraftfuldt v\u00e6rkt\u00f8j til optimeringsproblemer, som er blevet brugt i brancher som rumfart og finans.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Begreber som 'sv\u00e6rmintelligens', der er observeret i insektsv\u00e6rme og fugles og fisks synkroniserede bev\u00e6gelser, blev f\u00f8rst introduceret i computere i 80'erne og 90'erne og har oplevet bem\u00e6rkelsesv\u00e6rdige fremskridt i 2023.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I august 2023 vil tidligere Google-medarbejdere <\/span><a href=\"https:\/\/dailyai.com\/da\/2023\/08\/ex-google-researchers-establish-an-innovative-bio-inspired-ai-startup\/\"><span style=\"font-weight: 400;\">grundlagde Sakana<\/span><\/a><span style=\"font-weight: 400;\">en startup, der foresl\u00e5r at udvikle et ensemble af mindre AI-modeller, der arbejder sammen. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sakanas tilgang er inspireret af biologiske systemer som fiskestimer eller neurale netv\u00e6rk, hvor mindre enheder arbejder sammen om at n\u00e5 et mere komplekst m\u00e5l.\u00a0<\/span><\/p>\n<figure id=\"attachment_4827\" aria-describedby=\"caption-attachment-4827\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4827 size-full\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127.jpg\" alt=\"Myre AI\" width=\"1000\" height=\"667\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127.jpg 1000w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127-300x200.jpg 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127-768x512.jpg 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127-370x247.jpg 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127-800x534.jpg 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127-20x13.jpg 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127-740x494.jpg 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/shutterstock_1185312127-72x48.jpg 72w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-4827\" class=\"wp-caption-text\">Myreadf\u00e6rd indikerer en organismes evne til at fungere som en del af et synkroniseret ensemble. Kilde: Shutterstock: Shutterstock.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">I erkendelse af de monolitiske arkitekturer i moderne AI-modeller som ChatGPT lover denne ensembling-tilgang at reducere str\u00f8mforbruget og giver \u00f8get tilpasningsevne og modstandsdygtighed - kvaliteter, der er iboende i biologiske organismer.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Selv forst\u00e6rkningsl\u00e6ring (RL), en gren af maskinl\u00e6ring, der besk\u00e6ftiger sig med at l\u00e6re algoritmer at tr\u00e6ffe beslutninger i jagten p\u00e5 en bel\u00f8nning, var i h\u00f8j grad bioinspireret.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Richard Sutton og Andrew Bartos banebrydende bog \"<\/span><a href=\"https:\/\/www.andrew.cmu.edu\/course\/10-703\/textbook\/BartoSutton.pdf\"><span style=\"font-weight: 400;\">Forst\u00e6rkningsl\u00e6ring: En introduktion<\/span><\/a><span style=\"font-weight: 400;\">\" tr\u00e6kker mange eksempler fra, hvordan dyr l\u00e6rer af deres milj\u00f8, og inspirerer algoritmer, der kan tilpasse sig baseret p\u00e5 bel\u00f8nninger og straffe.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bogen indeholder hundredvis af sammenligninger med dyrs adf\u00e6rd og siger: \"Af alle former for maskinl\u00e6ring er forst\u00e6rkningsl\u00e6ring det, der kommer t\u00e6ttest p\u00e5 den form for l\u00e6ring, som mennesker og andre dyr foretager sig.\"<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">P\u00e5 vej mod bio-inspireret AI<\/span><\/h2>\n<p>I komplekse biologiske v\u00e6sener som mennesker og andre hvirveldyr arbejder forskellige komponenter i nervesystemet sammen om at styre en lang r\u00e6kke funktioner.<\/p>\n<p>Centralnervesystemet (CNS) fungerer som et kontrolcenter, der behandler information og orkestrerer reaktioner.<\/p>\n<p>I mellemtiden fungerer det perifere nervesystem (PNS) som et kommunikationsnetv\u00e6rk, der sender signaler mellem CNS og andre dele af kroppen.<\/p>\n<p>Inden for PNS ligger det specialiserede autonome nervesystem (ANS), som arbejder ufrivilligt for at styre vitale funktioner som puls og ford\u00f8jelse. Hvert system har sine egne roller, men de er indbyrdes forbundne og samarbejder problemfrit for at hj\u00e6lpe os med at navigere i milj\u00f8et.<\/p>\n<p><span style=\"font-weight: 400;\">Enklere organismer som insekter har et slankere og mere \u00f8konomisk nervesystem, som dog stadig er utroligt komplekst. En bananflue har nogle <a href=\"https:\/\/www.nih.gov\/news-events\/nih-research-matters\/complete-wiring-map-insect-brain\">3.000 neuroner og en halv million synapser<\/a>.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Komponenterne i det biologiske nervesystem er anatomisk adskilte, men fungerer holistisk, forbundet via neuroner, der sender og modtager sensoriske stimuli og i sidste ende danner en konceptuel forst\u00e5else - eller bevidsthed hos mere komplekse v\u00e6sener.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For at skabe autonome robotter med t\u00e6t koblede hjerner og sansesystemer m\u00e5 forskerne bev\u00e6ge sig v\u00e6k fra brute-force computing og skabe letv\u00e6gtssystemer, der er forankret i den sensoriske virkelighed.\u00a0<\/span><\/p>\n<figure id=\"attachment_4826\" aria-describedby=\"caption-attachment-4826\" style=\"width: 770px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4826 size-full\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Nerv_1.jpg\" alt=\"AI i nervesystemet\" width=\"770\" height=\"545\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Nerv_1.jpg 770w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Nerv_1-300x212.jpg 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Nerv_1-768x544.jpg 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Nerv_1-370x262.jpg 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Nerv_1-740x524.jpg 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Nerv_1-20x14.jpg 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/08\/Nerv_1-68x48.jpg 68w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\" \/><figcaption id=\"caption-attachment-4826\" class=\"wp-caption-text\">Hjernen, nervesystemet og i forl\u00e6ngelse heraf sanserne er t\u00e6t forbundne i biologiske v\u00e6sener. Kilde til dette: <a href=\"http:\/\/learn.neurotechedu.com\/the_nervous_system\/\">NeuroTechEdu<\/a>.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Selv om AI-modeller som ChatGPT har en enorm viden, er de p\u00e5 en m\u00e5de l\u00e5st fast i tiden og udelukket fra den sanselige virkelighed, hvor forst\u00e5elsen prim\u00e6rt er drevet af deres tr\u00e6ningsdata.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det giver fordele, eller rettere, det giver AI en r\u00e6kke f\u00e6rdigheder, der adskiller sig fra biologiske v\u00e6sener - og det er m\u00e5ske derfor, menneskeheden er ivrig efter at udvikle AI for at afhj\u00e6lpe den ineffektivitet, der er forbundet med at v\u00e6re et biologisk v\u00e6sen.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Som Amnon Shashua <\/span><a href=\"https:\/\/www.nature.com\/articles\/482462a\"><span style=\"font-weight: 400;\">H\u00f8jdepunkter<\/span><\/a><span style=\"font-weight: 400;\">Den \"meget anderledes arkitektur i computeren favoriserer strategier, der g\u00f8r optimal brug af dens praktisk talt ubegr\u00e6nsede hukommelseskapacitet og brute-force.\"<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Men hvis vi nogensinde skal frig\u00f8re AI fra datacentre og webbrowsere, skal forskerne l\u00f8se disse udfordringer og finde m\u00e5der at forbinde AI-systemer med en 'krop' eller i det mindste give dem et robust sensorisk grundlag.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det har umiddelbare praktiske anvendelser. Tag eksemplet med f\u00f8rerl\u00f8se biler - deres sensoriske systemer skal fungere p\u00e5 samme m\u00e5de som vores for at fungere sikkert. Ellers har de intet h\u00e5b om at \"se\" en potentiel forhindring og reagere hurtigt for at undg\u00e5 en katastrofe, hvilket har vist sig at v\u00e6re en v\u00e6sentlig hindring for deres udbredelse.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dennis Bray, Department of Physiology, Development and Neuroscience, University of Cambridge, argumenterede i samme retning: \"Maskiner kan matche os i mange opgaver, men de fungerer anderledes end netv\u00e6rk af nerveceller. Hvis vores m\u00e5l er at bygge maskiner, der bliver stadig mere intelligente og beh\u00e6ndige, s\u00e5 skal vi bruge kredsl\u00f8b af kobber og silicium. Men hvis vores m\u00e5l er at genskabe den menneskelige hjerne med dens finurlige genialitet, evne til multitasking og selvf\u00f8lelse, m\u00e5 vi lede efter andre materialer og andre designs.\"\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Disse kommentarer, som stadig er relevante i dag, blev offentliggjort i en <\/span><a href=\"https:\/\/www.nature.com\/articles\/482462a\"><span style=\"font-weight: 400;\">Diskussionsartikel om naturen<\/span><\/a><span style=\"font-weight: 400;\"> udgivet i 2012 i anledning af Turings 100-\u00e5rsdag - og AI har udviklet sig hurtigt siden da.\u00a0<\/span><\/p>\n<p>S\u00e5 hvor er vi nu?<\/p>\n<h2><span style=\"font-weight: 400;\">Spiking neurale netv\u00e6rk (SNN) og biologisk hardware<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Forskere udforsker i dag de \"andre materialer og forskellige designs\", som Bray henviser til, s\u00e5som spiking neural networks (SNN'er), en type neuralt netv\u00e6rk, der er n\u00f8je modelleret efter neuronal funktionalitet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">SNN'er er et specialiseret alternativ til de konventionelle neurale netv\u00e6rk, som vi ofte st\u00f8der p\u00e5 i maskinl\u00e6ring.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I stedet for at bruge kontinuerlige aktiveringsfunktioner til at behandle inputdata efterligner SNN'er de indviklede forhold i biologiske neurale netv\u00e6rk ved at bruge diskrete spikes til kommunikation mellem neuronerne.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I disse netv\u00e6rk integrerer hver kunstig neuron indkommende spikes fra de forbundne neuroner over tid. N\u00e5r det akkumulerede signal, eller membranpotentialet, overskrider en bestemt t\u00e6rskel, affyrer neuronen selv en spike.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Denne spiking-mekanisme g\u00f8r det muligt for netv\u00e6rket at opfange og behandle b\u00e5de rumlige og tidsm\u00e6ssige m\u00f8nstre, ligesom neuronerne i biologiske hjerner.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">S\u00e5 hvad g\u00f8r SNN'er til et fokuspunkt inden for bioinspireret AI?\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For det f\u00f8rste adskiller de sig ved deres evne til naturligt at behandle tidsm\u00e6ssige datasekvenser, hvilket eliminerer behovet for ekstra hukommelsesenheder som dem, der ses i tilbagevendende neurale netv\u00e6rk (RNN'er).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For det andet er SNN'er designet til at v\u00e6re utroligt energieffektive. I mods\u00e6tning til traditionelle neurale netv\u00e6rk, hvor hver neuron er konstant aktiv, g\u00f8r SNN'ernes sparsomme og begivenhedsdrevne natur det muligt for neuronerne at forblive stort set inaktive og kun affyre spikes, n\u00e5r det er n\u00f8dvendigt. Det s\u00e6nker deres energiforbrug betydeligt.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Endelig har SNN'er potentialet til \u00f8get robusthed og fleksibilitet ved at efterligne biologiske systemer bedre, is\u00e6r i st\u00f8jende eller uforudsigelige omgivelser.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Selvom begrebet SNN har sine r\u00f8dder i en teoretisk forst\u00e5else af biologiske neurale systemer, har fremskridt inden for hardwareteknologi gjort disse netv\u00e6rk mere tilg\u00e6ngelige for beregningsopgaver.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Neuromorfe chips, der er specielt designet til effektivt at simulere spiking-dynamik, har spillet en vigtig rolle i at g\u00f8re SNN'er praktisk anvendelige.\u00a0<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">IBM's bio-inspirerede analoge chip og SNN'er<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">De sidste to \u00e5r har budt p\u00e5 v\u00e6sentlige fremskridt i opbygningen af ultralette bygninger, <\/span><a href=\"https:\/\/dailyai.com\/da\/2023\/07\/understanding-the-often-overlooked-environmental-impact-of-ai\/\"><span style=\"font-weight: 400;\">Energieffektiv AI<\/span><\/a><span style=\"font-weight: 400;\"> l\u00f8sninger, ogs\u00e5 kaldet neuromorfiske chips.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Flere andre typer neuromorfiske teknologier er ogs\u00e5 tilg\u00e6ngelige nu, f.eks. neuromorfiske kameraer modelleret efter biologiske \u00f8jne.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Udviklet i 2023, <\/span><a href=\"https:\/\/dailyai.com\/da\/2023\/08\/ibm-announces-brain-like-ai-chip-with-lower-power-demands\/\"><span style=\"font-weight: 400;\">IBM's chip<\/span><\/a><span style=\"font-weight: 400;\"> bruger analoge komponenter som memristorer til at lagre varierende numeriske v\u00e6rdier. Den anvender ogs\u00e5 fase\u00e6ndringshukommelse (PCM) til at registrere et spektrum af v\u00e6rdier i stedet for 0'er og 1'er.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Disse egenskaber giver mulighed for reduceret datatransmission mellem hukommelse og processor, hvilket giver en fordel i energieffektivitet. IBM's design har \"64 analoge computerkerner i hukommelsen, som hver indeholder et 256 x 256 synaptisk array.\" Den opn\u00e5ede en imponerende n\u00f8jagtighed p\u00e5 92,81% i en benchmark-test for computersyn (CV), samtidig med at den var over 15 gange mere effektiv end flere eksisterende chips.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">IBM's chip er ikke eksplicit baseret p\u00e5 SNN'er, men den analoge karakter og brugen af memristorer g\u00f8r den meget kompatibel med SNN-modellen. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">I bund og grund kan SNN'erne implementeres mere naturligt p\u00e5 denne type arkitektur.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">IIT Bombays SNN-baserede chip<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">I 2022 har forskere fra Indian Institute of Technology, Bombay, <\/span><a href=\"https:\/\/spectrum.ieee.org\/low-power-ai-spiking-neural-net\"><span style=\"font-weight: 400;\">designet en chip<\/span><\/a><span style=\"font-weight: 400;\"> der arbejder specifikt med SNN'er.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Denne chip bruger b\u00e5nd-til-b\u00e5nd-tunnelstr\u00f8m (BTBT) til kunstige neuroner med ultralav energi. If\u00f8lge professor Udayan Ganguly opn\u00e5r chippen \"5.000 gange lavere energi pr. spike p\u00e5 et tilsvarende areal og 10 gange lavere standby-str\u00f8m p\u00e5 et tilsvarende areal og energi pr. spike.\"<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Denne type chip har direkte anvendelser i kompakte enheder som mobiltelefoner, ubemandede autonome k\u00f8ret\u00f8jer (UAV'er) og IoT-enheder, der opfylder behovet for let og energieffektiv AI-computing.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Begge tilgange sigter mod i sidste ende at muligg\u00f8re det, Ganguly beskriver som \"en ekstremt str\u00f8mbesparende neurosynaptisk kerne og udvikling af en on-chip l\u00e6ringsmekanisme i realtid, som er n\u00f8glen til autonome biologisk inspirerede neurale netv\u00e6rk. Det er den hellige gral.\"\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Disse systemer kunne kombinere \"tankesystemet\" med \"handlings- og bev\u00e6gelsessystemet\" i lighed med det, vi ser i biologiske organismer.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det ville give os mulighed for at tage et stort skridt i retning af at skabe kunstige systemer, der er kraftfulde, b\u00e6redygtige og t\u00e6t p\u00e5 de biologiske systemer, der har inspireret AI i n\u00e6sten et \u00e5rhundrede.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Endelig kunne menneskeheden frig\u00f8re AI'er fra monolitisk arkitektur, koble dem fra deres str\u00f8mkilder og sende dem ud i verden - og universet - som selvst\u00e6ndige v\u00e6sener.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Om det er en god id\u00e9 eller ej - ja, det er en diskussion til en anden gang. <\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Fra Ada Lovelace og Charles Babbage lagde grunden til Alan Turings banebrydende computerforskning, har verden v\u00e6ret betaget af l\u00f8ftet om AI - en dr\u00f8m om at skabe maskinbaserede enheder med menneskelignende kognitive evner.  Men senere vendte AI-udviklingen sig v\u00e6k fra sine biologiske r\u00f8dder til fordel for brutal computerkraft og algoritmisk kompleksitet.  Dermed er science fiction-dr\u00f8mmene om livagtige robotter i nogen grad svundet ind til en virkelighed med mere overfladisk verdslige store sprogmodeller (LLM'er) som ChatGPT. Selvf\u00f8lgelig er de nuv\u00e6rende AI-modeller stadig f\u00e6ngslende, men de fungerer som et v\u00e6rkt\u00f8j snarere end en<\/p>","protected":false},"author":2,"featured_media":4830,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[350,353,351,118,105,352,169],"class_list":["post-4823","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-bio-inspired-ai","tag-biology","tag-human-brain-project","tag-llms","tag-machine-learning","tag-neural-networks","tag-robotics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The evolution of bio-inspired AI: developments and future direction | DailyAI<\/title>\n<meta name=\"description\" content=\"From the early work of Ada Lovelace and Charles Babbage to Alan Turing&#039;s research, the world has 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