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
21
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
JosephMachlissaysthatthebluesisanativeAmericanmusicalandverseform,withnodirectEuropeanandAfricanantecedents
WilliamC.BryantwasthefirstAmericanlyricpoetofdistinction.Hisfameasapoetdatedfromtheprintingof______in1817.
Weallknowthatprogramminglanguageisthesystemofsyntax,grammar,andsymbolsorwordsusedtogiveinstructionstoacomp
WhichofthefollowingisNOTtrueaboutthepoliticalsystemofNewZealand?
Americansoftentrytosaythingsasquicklyaspossible,soforsomeexpressionsweusethefirstlettersofthewordsinstead
A、Notworkwell.B、Increasethepopulationnumber.C、Delaytheincreaseofpopulation.D、Itwillnotexistintheyear2030.C
NowadaysthereareanincreasingnumberofadvertisementsonTVandsomeofthemareunfortunatelymisleading.Somepeoplehold
Twotechniqueshaverecentlybeendevelopedtosimplifyresearchandreducethenumberofnonhumanprimatesneededinstudiesof
NewEnglandcontains______states.
In1995about700,000robotswereoperatingintheindustrializedworld.Over500,000wereusedinJapan,about120,000inWeste
随机试题
(Para.3,PassageOne)Realizingthatmyfather’sdayswerelimited,Itookthetimetotellhimfacetofacehowmuchheme
伤口分泌物涂片可见X线检查发现特殊性改变为
节地与施工用地保护措施是指,制定环境管理计划及应急救援预案,采取有效措施,降低环境负荷,保护地下设施和文物等资源。()
流动比率越(),说明营运资本越多,对债权人而言,其债权就越安全。
目前多数国家对税收管辖权的选择是()。
企业从银行提取现金3000元,对此的会计处理是()。
在新中国成立60周年之际,电影《建国大业》在全国热映,明星大腕客串角色令人觉得不够严肃,但影片揭示了国民党政府失败的根本原因是()。
如图,有A,B,C,D,E,F六人站在正六边形的六个顶点上传球。从A开始,每次可随意传给相邻的两人之一,若在5次内传到D,则停止传球;若5次之内传不到D,则传完5次也停止传球。那么从开始到停止,有多少种不同的传球方法?
李某欠赵某1万元,赵某为了索要1万元将李某关在地窖里,后由于地窖缺氧李某死亡,赵某的行为构成()。
若已经声明了函数原型“voidfun(inta,doubleb=0.0);”,则下列重载函数声明中正确的是()。
最新回复
(
0
)