首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Is our conception of human neuron functioning and our estimates of the number of neurons and connections in the human brain cons
Is our conception of human neuron functioning and our estimates of the number of neurons and connections in the human brain cons
admin
2011-03-10
31
问题
Is our conception of human neuron functioning and our estimates of the number of neurons and connections in the human brain consistent of what we know about the brain’s capabilities?【M1】______
Perhaps human neurons are far less capable than we think they are. 【M2】______
If so, building a machine with human level capabilities might bring longer than expected.【M3】______
We find that estimates of the number of concepts-"chunks" of knowledge-that a human expert in a particular field has mastered is remarkably consistent: 【M4】______
about 50,000 to 100,000. This approximate range appears to be valid over wide range of 【M5】______
human endeavors: the number of board positions mastered by a chess grand master, the concepts mastered by an expert in a technical field,
such like a physician, the vocabulary of a writer. 【M6】______
This type of professional knowledge is, of course, only a small subset of the knowledge we need to functioning as human beings. Basic knowledge of the world, 【M7】______
including so-called common sense, is more extensive. We also have an ability to recognize patterns: spoken language, written language, objects, faces. And we have our skills: walking, talking, catching balls. I believe that a reasonable conservative estimate of 【M8】______
the general knowledge of a typical human is a thousand times greater than the knowledge of an expert in her professional field. This provides us a rough estimate of 200 million chunks-bits of understanding, concepts, patterns, specific skills-per human. As we will see below, if this estimate is low 【M9】______
(by a factor of up to a thousand), the brain is still big enough.
The number of neurons in the human brain is estimated at approximately 100 billion, with an average of 1,000 connections per neuron, for a total of 100 trillion connections. With 100 trillion connections and 100 million chunks of knowledge (including patterns and skills), we get an estimate of about a million connections per chunk. Our computer simulations of neural nets use a variety of different type 【M10】______
of neuron models, all of which are relatively simple. Efforts to provide detailed electronic models of real mammalian neurons appear to show that while animal neurons are more complicated than typical computer models, the difference in complexity is modest.
【M5】
选项
答案
over∧a。
解析
over a wide range of(human endeavors)(人类广泛的活动)范围内。a range of或ranges of,因为是可数名词,或用单数或用复数,两者须选其一。此处range用的是单数,因此必须在range前加上不定冠词a。
转载请注明原文地址:https://kaotiyun.com/show/ZPYO777K
0
专业英语八级
相关试题推荐
A、AccordingtothemovementandvibrationsofhotgassesB、ThetradewindsblowonEarthC、TheriversD、Thesoundtravelthrough
WilliamC.BryantwasthefirstAmericanlyricpoetofdistinction.Hisfameasapoetdatedfromtheprintingof______in1817.
Americansoftentrytosaythingsasquicklyaspossible,soforsomeexpressionsweusethefirstlettersofthewordsinstead
Proponentsofdifferentjazzstyleshavealwaysarguedthattheirpredecessors,musicalstyledidnotincludeessentialcharacte
Historicaldevelopmentsofthepasthalfcenturyandtheinventionofmoderntelecommunicationandtransportationtechnologiesh
InanewbookcalledPredictions,someoftheworld’sgreatestthinkerspresentavisionofthefuturewithovertonesofascien
Twotechniqueshaverecentlybeendevelopedtosimplifyresearchandreducethenumberofnonhumanprimatesneededinstudiesof
Patents,saidThomasJefferson,shoulddraw"alinebetweenthethingswhichareworthtothepublictheembarrassmentofanexc
Sociologistsfinditusefultodistinguishbetweentypesofcrimeonasomewhatdifferentbasis.Ratherthanrelyingsolelyonl
Fortunatelytherearestillafewtastythingsforusgourmandstoenjoyinrelativesecurity.Theirnumbers,however,aredeple
随机试题
(increasing)________,peoplearerealizingthatourbasicproblemsarenoteconomicones.
在激励工作中,最为重要的是发现职工的()
温胆汤之功用不包括
无论何种账务处理程序,第一步都是根据审核无误的原始凭证或汇总原始凭证编制记账凭证。()
教师编写课时计划(教案)的一般步骤是什么?
工业以轻工业为先导逐渐转向以重工业、化学工业为中心的发展过程,即所谓重工业、化学工业化过程。目前在发达国家中,重工业、化学工业在整个工业中的比率,一般均在60%~65%之间。尽管各国人均国民收入差别较大,但重工业、化学工业比率一般相差不大。最能准确复述这段
【后三头同盟】(SecondTriumvirate)2012年历史学统考真题
投资银行是专门对()办理投资和长期信贷业务的银行。
一个字长为8位的无符号二进制整数能表示的十进制数值范围是______。
中国政府对计划生育政策进行了修改完善。
最新回复
(
0
)