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1 theory of computing
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2 theory of computing
Большой англо-русский и русско-английский словарь > theory of computing
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3 theory of computing
Вычислительная техника: теория вычислений -
4 theory of computing
English-Russian dictionary of computer science and programming > theory of computing
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5 theory of computing
мат. -
6 theory
1) теория; теоретические основы2) метод•- automatic control theory
- axiomatic set theory
- circuit theory
- coding theory
- communication theory
- data theory
- decision theory
- formal theory of testing
- function theory
- game theory
- graph theory
- group theory
- informal theory
- information theory
- lattice theory
- logic theory
- number theory
- OSA theory
- probability theory
- proof theory
- queueing theory
- reliability theory
- renewal theory
- sampling theory
- scheduling theory
- set theory
- similarity theory
- stability theory
- statistical theory
- switching theory
- theory of algorithms
- theory of binary decisions
- theory of computing
- theory of messagesEnglish-Russian dictionary of computer science and programming > theory
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7 computing theory
есептеу теориясыThe English-Kazakh dictionary of Informatics and computer technology dictionary > computing theory
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8 background computing
1. решение задач с низким приоритетом; фоновые вычисления2. фоновые вычисления -
9 distributed computing
1. распределенные вычисления; распределенная обработка данных2. распределенные вычисления; распределенная обработка -
10 average computing
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11 pc computing
English-Russian dictionary of Information technology > pc computing
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12 soft computing
комплекс методологий, призванных находить адекватные решения задач при нечётких исходных данных и условиях - имитируя способности человека принимать решения в условиях неопределённости, характерной для реальной жизни. Теорию мягких вычислений предложил Лофти-заде (Lotfi Zadeh), автор теории нечётких множеств (fuzzy sets theory, 1965 г.), теории нечёткой логики (fuzzy logic, 1973 г.), а также теории вербальных вычислений и представлений (computing with words and perceptions)см. тж. granular computingАнгло-русский толковый словарь терминов и сокращений по ВТ, Интернету и программированию. > soft computing
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13 теория вычислений
Большой англо-русский и русско-английский словарь > теория вычислений
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14 STOC
1) Военный термин: standard tactical operating condition2) Техника: storage and conversion system3) Сокращение: Special Tactical Operations Center (US National Military Command Center), Annual ACM Symposium on Theory of Computing4) Вычислительная техника: Symposium on Theory Of Computing (Conference)5) Нефть: stock oil conditions -
15 back up
1) Automobile reculer, faire marche arrière2) US ( block) [drains] s'obstruer; [traffic] se bloquerback [something] up, back up [something]3) ( support) [facts, evidence] confirmer [claims, case, theory]4) Computing sauvegarderback [somebody] up soutenir [person] -
16 information
information [‚ɪnfə'meɪʃən]∎ a piece or bit of information un renseignement, une information;∎ if my information is correct si mes informations sont exactes;∎ do you have any information on or about the new model? avez-vous des renseignements concernant ou sur le nouveau modèle?;∎ I'd like some information about train times je voudrais des renseignements sur les horaires des trains;∎ for more information, call this number pour plus de renseignements ou de précisions, appelez ce numéro;∎ I am sending you this brochure for your information je vous envoie cette brochure à titre d'information;∎ for your information, I'm not stupid sachez que je ne suis pas complètement idiot;∎ for your information, I've done the dishes for the past week! je t'apprendrai que j'ai fait la vaisselle toute cette semaine!;∎ his head is full of useless information il encombre sa mémoire de choses inutiles;∎ the government is operating an information blackout le gouvernement fait de la rétention d'information(b) (communication) information f;∎ they discussed the importance of information in our time ils ont parlé de l'importance de l'information à notre époque;∎ information overload surinformation f(c) (UNCOUNT) (knowledge) connaissances fpl;∎ her information on the subject is unequalled elle connaît ce sujet mieux que personne;∎ Administration for your information, please find enclosed... à titre d'information, vous trouverez ci-joint...;∎ for your information, it happened in 1938 je vous signale que cela s'est passé en 1938∎ the transmission of genetic information la transmission de l'information génétique(e) (UNCOUNT) (service, department) (service m des) renseignements mpl;∎ ask at the information desk adressez-vous aux renseignements∎ to call information appeler les renseignements∎ to lay an information against sb déposer une plainte contre qn►► British information bureau bureau m or service m des renseignements;information carrier support m d'information;information copy (of document) copie f pour information;information desk (in hotel etc) bureau m des renseignements;information gathering collecte f d'informations;Computing information highway autoroute f de l'information, French Canadian inforoute f;information market marché m des informations;information office bureau m ou service m des renseignements;information officer (press officer) responsable mf de la communication; (archivist) documentaliste mf;information pack dossier m d'information;information processing error erreur f dans le traitement de l'information;information retrieval recherche f documentaire; Computing recherche f d'information;Computing information science science f de l'information;Computing information scientist informaticien(enne) m,f;information sheet fiche f explicative;Computing information society société f de l'information;information storage mémorisation f des informations;information system système m informatique;Computing information superhighway autoroute f de l'information, French Canadian inforoute f;Computing information technology technologie f de l'information, informatique f;information theory théorie f de l'informationUn panorama unique de l'anglais et du français > information
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17 hold
hold [həʊld]tenir ⇒ 1A (a), 1A (f), 1B (a), 1B (b), 1D (b), 1D (d), 2 (d) avoir ⇒ 1A (c) retenir ⇒ 1A (e), 1C (b) contenir ⇒ 1A (f) exercer ⇒ 1A (g) réserver ⇒ 1A (e), 1A (h) conserver ⇒ 1A (i) stocker ⇒ 1A (i) maintenir ⇒ 1B (a) détenir ⇒ 1A (i), 1C (a) croire ⇒ 1D (a) continuer ⇒ 1D (e) se tenir ⇒ 2 (a) tenir bon ⇒ 2 (b) durer ⇒ 2 (c) attendre ⇒ 2 (f) prise ⇒ 3D (a)-(c) en attente ⇒ 4D(pt & pp held [held])A.(a) (clasp, grasp) tenir;∎ to hold sth in one's hand (book, clothing, guitar) avoir qch à la main; (key, money) tenir qch dans la main;∎ to hold sth with both hands tenir qch à deux mains;∎ will you hold my coat a second? peux-tu prendre ou tenir mon manteau un instant?;∎ to hold the door for sb tenir la porte à ou pour qn;∎ also figurative to hold sb's hand tenir la main à qn;∎ to hold hands se donner la main, se tenir (par) la main;∎ hold my hand while we cross the street donne-moi la main pour traverser la rue;∎ to hold sb in one's arms tenir qn dans ses bras;∎ to hold sb close or tight serrer qn contre soi;∎ hold it tight and don't let go tiens-le bien et ne le lâche pas;∎ to hold one's nose se boucher le nez;∎ to hold one's sides with laughter se tenir les côtes de rire(b) (keep, sustain)∎ to hold sb's attention/interest retenir l'attention de qn;∎ the film doesn't hold the attention for long le film ne retient pas l'attention très longtemps;∎ to hold an audience tenir un auditoire;∎ to hold one's serve (in tennis) défendre son service;∎ to hold one's own se défendre, bien se débrouiller;∎ the Prime Minister held her own during the debate le Premier ministre a tenu bon ou ferme pendant le débat;∎ she is well able to hold her own elle sait se défendre;∎ he can hold his own in chess il se défend bien aux échecs;∎ our products hold their own against the competition nos produits se tiennent bien par rapport à la concurrence;∎ to hold the floor garder la parole;∎ the senator held the floor for an hour le sénateur a gardé la parole pendant une heure∎ do you hold a clean driving licence? avez-vous déjà été sanctionné pour des infractions au code de la route?;∎ she holds the post of treasurer elle occupe le poste de trésorière;∎ to hold office (chairperson, deputy) être en fonction, remplir sa fonction; (minister) détenir ou avoir un portefeuille; (political party, president) être au pouvoir ou au gouvernement;∎ Religion to hold a living jouir d'un bénéfice;∎ Finance to hold stock or shares détenir ou avoir des actions;∎ to hold 5 percent of the shares in a company détenir 5 pour cent du capital d'une société;∎ also figurative to hold a record détenir un record;∎ she holds the world record for the javelin elle détient le record mondial du javelot∎ the guerrillas held the bridge for several hours les guérilleros ont tenu le pont plusieurs heures durant;∎ Military to hold the enemy contenir l'ennemi;∎ figurative to hold centre stage occuper le centre de la scène;(e) (reserve, set aside) retenir, réserver;∎ we'll hold the book for you until next week nous vous réserverons le livre ou nous vous mettrons le livre de côté jusqu'à la semaine prochaine;∎ will the restaurant hold the table for us? est-ce que le restaurant va nous garder la table?∎ this bottle holds 2 litres cette bouteille contient 2 litres;∎ will this suitcase hold all our clothes? est-ce que cette valise sera assez grande pour tous nos vêtements?;∎ the car is too small to hold us all la voiture est trop petite pour qu'on y tienne tous;∎ the hall holds a maximum of 250 people la salle peut accueillir ou recevoir 250 personnes au maximum, il y a de la place pour 250 personnes au maximum dans cette salle;∎ to hold one's drink bien supporter l'alcool;∎ the letter holds the key to the murder la lettre contient la clé du meurtre(g) (have, exercise) exercer;∎ the subject holds a huge fascination for some people le sujet exerce une énorme fascination sur certaines personnes;∎ sport held no interest for them pour eux, le sport ne présentait aucun intérêt(h) (have in store) réserver;∎ who knows what the future may hold? qui sait ce que nous réserve l'avenir?∎ we can't hold this data forever nous ne pouvons pas conserver ou stocker ces données éternellement;∎ how much data will this disk hold? quelle quantité de données cette disquette peut-elle stocker?;∎ the commands are held in the memory/in a temporary buffer les instructions sont gardées en mémoire/sont enregistrées dans une mémoire intermédiaire;∎ my lawyer holds a copy of my will mon avocat détient ou conserve un exemplaire de mon testament;∎ this photo holds fond memories for me cette photo me rappelle de bons souvenirs∎ the new car holds the road well la nouvelle voiture tient bien la routeB.(a) (maintain in position) tenir, maintenir;∎ she held her arms by her sides elle avait les bras le long du corps;∎ her hair was held in place with hairpins des épingles (à cheveux) retenaient ou maintenaient ses cheveux;∎ what's holding the picture in place? qu'est-ce qui tient ou maintient le tableau en place?;∎ hold the picture a bit higher tenez le tableau un peu plus haut∎ to hold oneself upright or erect se tenir droit;∎ also figurative to hold one's head high garder la tête hauteC.(a) (confine, detain) détenir;∎ the police are holding him for questioning la police l'a gardé à vue pour l'interroger;∎ they're holding him for murder ils l'ont arrêté pour meurtre;∎ she was held without trial for six weeks elle est restée en prison six semaines sans avoir été jugée(b) (keep back, retain) retenir;∎ Law to hold sth in trust for sb tenir qch par fidéicommis pour qn;∎ the post office will hold my mail for me while I'm away la poste gardera mon courrier pendant mon absence;∎ figurative once she starts talking politics there's no holding her! dès qu'elle commence à parler politique, rien ne peut l'arrêter!;∎ don't hold dinner for me ne m'attendez pas pour dîner;∎ they held the plane another thirty minutes ils ont retenu l'avion au sol pendant encore trente minutes;∎ hold all decisions on the project until I get back attendez mon retour pour prendre des décisions concernant le projet;∎ hold the front page! ne lancez pas la une tout de suite!;∎ hold the lift! ne laissez pas les portes de l'ascenseur se refermer, j'arrive!∎ we have held costs to a minimum nous avons limité nos frais au minimum;∎ inflation has been held at the same level for several months le taux d'inflation est maintenu au même niveau depuis plusieurs mois;∎ they held their opponents to a goalless draw ils ont réussi à imposer le match nulD.∎ formal I hold that teachers should be better paid je considère ou j'estime que les enseignants devraient être mieux payés;∎ the Constitution holds that all men are free la Constitution stipule que tous les hommes sont libres;∎ he holds strong beliefs on the subject of abortion il a de solides convictions en ce qui concerne l'avortement;∎ she holds strong views on the subject elle a une opinion bien arrêtée sur le sujet;∎ her statement is held to be true sa déclaration passe pour vraie(b) (consider, regard) tenir, considérer;∎ to hold sb responsible for sth tenir qn pour responsable de qch;∎ I'll hold you responsible if anything goes wrong je vous tiendrai pour responsable ou je vous considérerai responsable s'il y a le moindre incident;∎ the president is to be held accountable for his actions le président doit répondre de ses actes;∎ to hold sb in contempt mépriser ou avoir du mépris pour qn;∎ to hold sb in high esteem avoir beaucoup d'estime pour qn, tenir qn en haute estime∎ the appeal court held the evidence to be insufficient la cour d'appel a considéré que les preuves étaient insuffisantes∎ to hold an election/elections procéder à une élection/à des élections;∎ the book fair is held in Frankfurt la foire du livre se tient ou a lieu à Francfort;∎ the classes are held in the evening les cours ont lieu le soir;∎ interviews will be held in early May les entretiens auront lieu au début du mois de mai ou début mai;∎ to hold talks être en pourparlers;∎ the city is holding a service for Armistice Day la ville organise un office pour commémorer le 11 novembre;∎ mass is held at eleven o'clock la messe est célébrée à onze heures(e) (continue without deviation) continuer;∎ Nautical to hold course tenir la route;∎ we held our southerly course nous avons maintenu le cap au sud, nous avons continué notre route vers le sud;∎ Music to hold a note tenir une note∎ will you hold (the line)? voulez-vous patienter?;∎ hold the line! ne quittez pas!;∎ the line's busy just now - I'll hold le poste est occupé pour le moment - je patiente ou je reste en ligne;∎ hold all my calls ne me passez aucun appel(a) (cling → person) se tenir, s'accrocher;∎ she held tight to the railing elle s'est cramponnée ou accrochée à la rampe;∎ hold fast!, hold tight! accrochez-vous bien!;∎ figurative their resolve held fast or firm in the face of fierce opposition ils ont tenu bon face à une opposition acharnée(b) (remain in place → nail, fastening) tenir bon;∎ the rope won't hold for long la corde ne tiendra pas longtemps∎ prices held at the same level as last year les prix se sont maintenus au même niveau que l'année dernière;∎ the pound held firm against the dollar la livre s'est maintenue par rapport au dollar;∎ we might buy him a guitar if his interest in music holds nous lui achèterons peut-être une guitare s'il continue à s'intéresser à la musique∎ to hold good (invitation, offer) tenir; (promises) tenir, valoir; (argument, theory) rester valable;∎ the principle still holds good le principe tient ou vaut toujours;∎ that theory only holds if you consider... cette théorie n'est valable que si vous prenez en compte...;∎ the same holds for Spain il en est de même pour l'Espagne∎ hold still! ne bougez pas!□(f) (on telephone) attendre;∎ the line's British engaged or American busy, will you hold? la ligne est occupée, voulez-vous patienter?3 noun∎ to catch or to grab or to seize or to take hold of sth se saisir de ou saisir qch;∎ she caught hold of the rope elle a saisi la corde;∎ grab (a) hold of that towel tiens! prends cette serviette;∎ there was nothing for me to grab hold of il n'y avait rien à quoi m'accrocher ou me cramponner;∎ get a good or take a firm hold on or of the railing tenez-vous bien à la balustrade;∎ I still had hold of his hand je le tenais toujours par la main;∎ to get hold of sth (find) se procurer ou trouver qch;∎ it's difficult to get hold of this book ce livre est difficile à trouver;∎ we got hold of the book you wanted nous avons trouvé le livre que tu voulais;∎ where did you get hold of that idea? où est-ce que tu es allé chercher cette idée?;∎ to get hold of sb trouver qn;∎ I've been trying to get hold of you all week! je t'ai cherché toute la semaine!;∎ just wait till the newspapers get hold of the story attendez un peu que les journaux s'emparent de la nouvelle;∎ she kept hold of the rope elle n'a pas lâché la corde;∎ you'd better keep hold of the tickets tu ferais bien de garder les billets;∎ get a hold on yourself ressaisis-toi, ne te laisse pas aller;∎ Sport & figurative no holds barred tous les coups sont permis(b) (controlling force or influence) prise f, influence f;∎ the Church still exerts a strong hold on the country l'Église a toujours une forte mainmise sur le pays;∎ to have a hold over sb avoir de l'influence sur qn;∎ I have no hold over him je n'ai aucune prise ou influence sur lui;∎ the Mafia obviously has some kind of hold over him de toute évidence, la Mafia le tient d'une manière ou d'une autre(c) (in climbing) prise f(d) (delay, pause) pause f, arrêt m;∎ the company has put a hold on all new orders l'entreprise a suspendu ou gelé toutes les nouvelles commandes∎ the association put a hold on all the hotel rooms l'association a réservé toutes les chambres de l'hôtel(gen) & Telecommunications en attente;∎ to put sb on hold mettre qn en attente;∎ we've put the project on hold nous avons mis le projet en attente;∎ the operator kept me on hold for ten minutes le standardiste m'a mis en attente pendant dix minutes∎ to hold sth against sb en vouloir à qn de qch;∎ his collaboration with the enemy will be held against him sa collaboration avec l'ennemi lui sera préjudiciable;∎ he lied to her and she still holds it against him il lui a menti et elle lui en veut toujours;∎ I hope you won't hold it against me if I decide not to accept j'espère que tu ne m'en voudras pas si je décide de ne pas accepter(a) (control, restrain → animal, person) retenir, tenir; (→ crowd, enemy forces) contenir; (→ anger, laughter, tears) retenir, réprimer; (→ inflation) contenir;∎ the government has succeeded in holding back inflation le gouvernement a réussi à contenir l'inflation∎ she's holding something back from me elle me cache quelque chose∎ they held her back a year ils lui ont fait redoubler une classe, ils l'ont fait redoubler(d) (prevent progress of) empêcher de progresser;∎ his difficulties with maths are holding him back ses difficultés en maths l'empêchent de progresser;∎ lack of investment is holding industry back l'absence d'investissements freine l'industrie∎ he has held back from making a commitment il s'est abstenu de s'engager;∎ the president held back before sending in the army le président a hésité avant d'envoyer les troupes;∎ don't hold back, tell me everything vas-y, dis-moi tout(a) (keep in place → paper, carpet) maintenir en place; (→ person) forcer à rester par terre, maintenir au sol;∎ it took four men to hold him down il a fallu quatre hommes pour le maîtriser ou pour le maintenir au sol(b) (keep to limit) restreindre, limiter;∎ they're holding unemployment down to 4 percent ils maintiennent le taux de chômage à 4 pour cent;∎ to hold prices down empêcher les prix de monter, empêcher la montée des prix∎ he's never managed to hold down a job il n'a jamais pu garder un emploi bien longtemps;∎ although she's a student, she holds down a full-time job bien qu'elle étudie, elle occupe un poste à plein tempspérorer, disserter;∎ he held forth on the evils of drink il a fait un long discours sur les conséquences néfastes de l'alcool➲ hold off(a) (keep at distance) tenir à distance ou éloigné;∎ the troops held off the enemy les troupes ont tenu l'ennemi à distance;∎ they managed to hold off the attack ils ont réussi à repousser l'attaque;∎ I can't hold the reporters off any longer je ne peux plus faire attendre ou patienter les journalistes(b) (delay, put off) remettre à plus tard;∎ he held off going to see the doctor until May il a attendu le mois de mai pour aller voir le médecin;∎ I held off making a decision j'ai remis la décision à plus tard∎ at least the rain held off au moins il n'a pas plu∎ hold off from smoking for a few weeks abstenez-vous de fumer ou ne fumez pas pendant quelques semaines➲ hold on(a) (grasp, grip) tenir bien, s'accrocher;∎ to hold on to sth bien tenir qch, s'accrocher à qch, se cramponner à qch;∎ hold on! accrochez-vous!;∎ hold on to your hat! tenez votre chapeau (sur la tête)!(b) (keep possession of) garder;∎ hold on to this contract for me (keep it) garde-moi ce contrat;∎ all politicians try to hold on to power tous les hommes politiques essaient de rester au pouvoir;∎ hold on to your dreams/ideals accrochez-vous à vos rêves/idéaux(c) (continue, persevere) tenir, tenir le coup;∎ how long can you hold on? combien de temps pouvez-vous tenir (le coup)?;∎ I can't hold on much longer je ne peux pas tenir (le coup) beaucoup plus longtemps∎ hold on, how do I know I can trust you? attends un peu! qu'est-ce qui me prouve que je peux te faire confiance?;∎ Telecommunications hold on please! ne quittez pas!;∎ I had to hold on for several minutes j'ai dû patienter plusieurs minutes(maintain in place) tenir ou maintenir en place;∎ her hat is held on with pins son chapeau est maintenu (en place) par des épingles➲ hold out(a) (last → supplies, stocks) durer;∎ will the car hold out till we get home? la voiture tiendra-t-elle (le coup) jusqu'à ce qu'on rentre?(b) (refuse to yield) tenir bon, tenir le coup;∎ the garrison held out for weeks la garnison a tenu bon pendant des semaines;∎ the management held out against any suggested changes la direction a refusé tous les changements proposés(extend) tendre;∎ she held out the book to him elle lui a tendu le livre;∎ also figurative to hold out one's hand to sb tendre la main à qn;∎ I held out my hand j'ai tendu la main;∎ his mother held her arms out to him sa mère lui a ouvert ou tendu les bras(offer) offrir;∎ I can't hold out any promise of improvement je ne peux promettre aucune amélioration;∎ the doctors hold out little hope for him les médecins ont peu d'espoir pour lui;∎ science holds out some hope for cancer patients la science offre un espoir pour les malades du cancerexiger;∎ the workers held out for a shorter working week les ouvriers réclamaient une semaine de travail plus courte;∎ we're holding out for a higher offer nous attendons qu'on nous en offre un meilleur prix∎ you're holding out on me! tu me caches quelque chose!□(a) (position) tenir au-dessus de;∎ she held the glass over the sink elle tenait le verre au-dessus de l'évier;∎ figurative they hold the threat of redundancy over their workers ils maintiennent la menace de licenciement sur leurs ouvriers(b) (postpone) remettre, reporter;∎ we'll hold these items over until the next meeting on va remettre ces questions à la prochaine réunion;∎ payment was held over for six months le paiement a été différé pendant six mois∎ they're holding the show over for another month ils vont laisser le spectacle à l'affiche encore un mois➲ hold to(promise, tradition) s'en tenir à, rester fidèle à; (decision) maintenir, s'en tenir à;∎ you must hold to your principles vous devez rester fidèle à vos principes∎ we held him to his promise nous lui avons fait tenir parole;∎ if I win, I'll buy you lunch - I'll hold you to that! si je gagne, je t'invite à déjeuner - je te prends au mot!∎ the two pieces of wood are held together by nails les deux morceaux de bois sont cloués ensemble;∎ we need a leader who can hold the workers together il nous faut un chef qui puisse rallier les ouvriers➲ hold up(a) (lift, raise) lever, élever;∎ I held up my hand j'ai levé la main;∎ hold the picture up to the light tenez la photo à contre-jour;∎ to hold up one's head redresser la tête;∎ figurative she felt she would never be able to hold her head up again elle pensait qu'elle ne pourrait plus jamais marcher la tête haute∎ my trousers were held up with safety pins mon pantalon était maintenu par des épingles de sûreté∎ they were held up as an example of efficient local government on les présentaient comme un exemple de gouvernement local compétent;∎ to hold sb up to ridicule tourner qn en ridicule∎ the traffic held us up la circulation nous a mis en retard;∎ the accident held up traffic for an hour l'accident a bloqué la circulation pendant une heure;∎ our departure was held up by bad weather notre départ a été retardé par le mauvais temps;∎ I was held up j'ai été retenu;∎ the project was held up for lack of funds (before it started) le projet a été mis en attente faute de financement; (after it started) le projet a été interrompu faute de financement;∎ the goods were held up at customs les marchandises ont été immobilisées à la douane∎ to hold up a bank faire un hold-up dans une banque∎ the car held up well during the trip la voiture a bien tenu le coup pendant le voyage;∎ she's holding up well under the pressure elle supporte bien la pression;∎ my finances are holding up well je tiens le coup financièrement∎ I don't hold with her ideas on socialism je ne suis pas d'accord avec ou je ne partage pas ses idées concernant le socialisme;∎ his mother doesn't hold with private schools sa mère est contre ou désapprouve les écoles privées -
18 Shannon, Claude Elwood
[br]b. 30 April 1916 Gaylord, Michigan, USA[br]American mathematician, creator of information theory.[br]As a child, Shannon tinkered with radio kits and enjoyed solving puzzles, particularly crypto-graphic ones. He graduated from the University of Michigan in 1936 with a Bachelor of Science in mathematics and electrical engineering, and earned his Master's degree from the Massachusetts Institute of Technology (MIT) in 1937. His thesis on applying Boolean algebra to switching circuits has since been acclaimed as possibly the most significant this century. Shannon earned his PhD in mathematics from MIT in 1940 with a dissertation on the mathematics of genetic transmission.Shannon spent a year at the Institute for Advanced Study in Princeton, then in 1941 joined Bell Telephone Laboratories, where he began studying the relative efficiency of alternative transmission systems. Work on digital encryption systems during the Second World War led him to think that just as ciphers hide information from the enemy, "encoding" information could also protect it from noise. About 1948, he decided that the amount of information was best expressed quantitatively in a two-value number system, using only the digits 0 and 1. John Tukey, a Princeton colleague, named these units "binary digits" (or, for short, "bits"). Almost all digital computers and communications systems use such on-off, or two-state logic as their basis of operation.Also in the 1940s, building on the work of H. Nyquist and R.V.L. Hartley, Shannon proved that there was an upper limit to the amount of information that could be transmitted through a communications channel in a unit of time, which could be approached but never reached because real transmissions are subject to interference (noise). This was the beginning of information theory, which has been used by others in attempts to quantify many sciences and technologies, as well as subjects in the humanities, but with mixed results. Before 1970, when integrated circuits were developed, Shannon's theory was not the preferred circuit-and-transmission design tool it has since become.Shannon was also a pioneer in the field of artificial intelligence, claiming that computing machines could be used to manipulate symbols as well as do calculations. His 1953 paper on computers and automata proposed that digital computers were capable of tasks then thought exclusively the province of living organisms. In 1956 he left Bell Laboratories to join the MIT faculty as Professor of Communications Science.On the lighter side, Shannon has built many devices that play games, and in particular has made a scientific study of juggling.[br]Principal Honours and DistinctionsNational Medal of Science. Institute of Electrical and Electronics Engineers Medal of Honor, Kyoto Prize.BibliographyHis seminal paper (on what has subsequently become known as information theory) was entitled "The mathematical theory of communications", first published in Bell System Technical Journal in 1948; it is also available in a monograph (written with Warren Weaver) published by the University of Illinois Press in 1949, and in Key Papers in the Development of Information Theory, ed. David Slepian, IEEE Press, 1974, 1988. For readers who want all of Shannon's works, see N.J.A.Sloane and A.D.Wyner, 1992, TheCollected Papers of Claude E.Shannon.HO -
19 Artificial Intelligence
In my opinion, none of [these programs] does even remote justice to the complexity of human mental processes. Unlike men, "artificially intelligent" programs tend to be single minded, undistractable, and unemotional. (Neisser, 1967, p. 9)Future progress in [artificial intelligence] will depend on the development of both practical and theoretical knowledge.... As regards theoretical knowledge, some have sought a unified theory of artificial intelligence. My view is that artificial intelligence is (or soon will be) an engineering discipline since its primary goal is to build things. (Nilsson, 1971, pp. vii-viii)Most workers in AI [artificial intelligence] research and in related fields confess to a pronounced feeling of disappointment in what has been achieved in the last 25 years. Workers entered the field around 1950, and even around 1960, with high hopes that are very far from being realized in 1972. In no part of the field have the discoveries made so far produced the major impact that was then promised.... In the meantime, claims and predictions regarding the potential results of AI research had been publicized which went even farther than the expectations of the majority of workers in the field, whose embarrassments have been added to by the lamentable failure of such inflated predictions....When able and respected scientists write in letters to the present author that AI, the major goal of computing science, represents "another step in the general process of evolution"; that possibilities in the 1980s include an all-purpose intelligence on a human-scale knowledge base; that awe-inspiring possibilities suggest themselves based on machine intelligence exceeding human intelligence by the year 2000 [one has the right to be skeptical]. (Lighthill, 1972, p. 17)4) Just as Astronomy Succeeded Astrology, the Discovery of Intellectual Processes in Machines Should Lead to a Science, EventuallyJust as astronomy succeeded astrology, following Kepler's discovery of planetary regularities, the discoveries of these many principles in empirical explorations on intellectual processes in machines should lead to a science, eventually. (Minsky & Papert, 1973, p. 11)5) Problems in Machine Intelligence Arise Because Things Obvious to Any Person Are Not Represented in the ProgramMany problems arise in experiments on machine intelligence because things obvious to any person are not represented in any program. One can pull with a string, but one cannot push with one.... Simple facts like these caused serious problems when Charniak attempted to extend Bobrow's "Student" program to more realistic applications, and they have not been faced up to until now. (Minsky & Papert, 1973, p. 77)What do we mean by [a symbolic] "description"? We do not mean to suggest that our descriptions must be made of strings of ordinary language words (although they might be). The simplest kind of description is a structure in which some features of a situation are represented by single ("primitive") symbols, and relations between those features are represented by other symbols-or by other features of the way the description is put together. (Minsky & Papert, 1973, p. 11)[AI is] the use of computer programs and programming techniques to cast light on the principles of intelligence in general and human thought in particular. (Boden, 1977, p. 5)The word you look for and hardly ever see in the early AI literature is the word knowledge. They didn't believe you have to know anything, you could always rework it all.... In fact 1967 is the turning point in my mind when there was enough feeling that the old ideas of general principles had to go.... I came up with an argument for what I called the primacy of expertise, and at the time I called the other guys the generalists. (Moses, quoted in McCorduck, 1979, pp. 228-229)9) Artificial Intelligence Is Psychology in a Particularly Pure and Abstract FormThe basic idea of cognitive science is that intelligent beings are semantic engines-in other words, automatic formal systems with interpretations under which they consistently make sense. We can now see why this includes psychology and artificial intelligence on a more or less equal footing: people and intelligent computers (if and when there are any) turn out to be merely different manifestations of the same underlying phenomenon. Moreover, with universal hardware, any semantic engine can in principle be formally imitated by a computer if only the right program can be found. And that will guarantee semantic imitation as well, since (given the appropriate formal behavior) the semantics is "taking care of itself" anyway. Thus we also see why, from this perspective, artificial intelligence can be regarded as psychology in a particularly pure and abstract form. The same fundamental structures are under investigation, but in AI, all the relevant parameters are under direct experimental control (in the programming), without any messy physiology or ethics to get in the way. (Haugeland, 1981b, p. 31)There are many different kinds of reasoning one might imagine:Formal reasoning involves the syntactic manipulation of data structures to deduce new ones following prespecified rules of inference. Mathematical logic is the archetypical formal representation. Procedural reasoning uses simulation to answer questions and solve problems. When we use a program to answer What is the sum of 3 and 4? it uses, or "runs," a procedural model of arithmetic. Reasoning by analogy seems to be a very natural mode of thought for humans but, so far, difficult to accomplish in AI programs. The idea is that when you ask the question Can robins fly? the system might reason that "robins are like sparrows, and I know that sparrows can fly, so robins probably can fly."Generalization and abstraction are also natural reasoning process for humans that are difficult to pin down well enough to implement in a program. If one knows that Robins have wings, that Sparrows have wings, and that Blue jays have wings, eventually one will believe that All birds have wings. This capability may be at the core of most human learning, but it has not yet become a useful technique in AI.... Meta- level reasoning is demonstrated by the way one answers the question What is Paul Newman's telephone number? You might reason that "if I knew Paul Newman's number, I would know that I knew it, because it is a notable fact." This involves using "knowledge about what you know," in particular, about the extent of your knowledge and about the importance of certain facts. Recent research in psychology and AI indicates that meta-level reasoning may play a central role in human cognitive processing. (Barr & Feigenbaum, 1981, pp. 146-147)Suffice it to say that programs already exist that can do things-or, at the very least, appear to be beginning to do things-which ill-informed critics have asserted a priori to be impossible. Examples include: perceiving in a holistic as opposed to an atomistic way; using language creatively; translating sensibly from one language to another by way of a language-neutral semantic representation; planning acts in a broad and sketchy fashion, the details being decided only in execution; distinguishing between different species of emotional reaction according to the psychological context of the subject. (Boden, 1981, p. 33)Can the synthesis of Man and Machine ever be stable, or will the purely organic component become such a hindrance that it has to be discarded? If this eventually happens-and I have... good reasons for thinking that it must-we have nothing to regret and certainly nothing to fear. (Clarke, 1984, p. 243)The thesis of GOFAI... is not that the processes underlying intelligence can be described symbolically... but that they are symbolic. (Haugeland, 1985, p. 113)14) Artificial Intelligence Provides a Useful Approach to Psychological and Psychiatric Theory FormationIt is all very well formulating psychological and psychiatric theories verbally but, when using natural language (even technical jargon), it is difficult to recognise when a theory is complete; oversights are all too easily made, gaps too readily left. This is a point which is generally recognised to be true and it is for precisely this reason that the behavioural sciences attempt to follow the natural sciences in using "classical" mathematics as a more rigorous descriptive language. However, it is an unfortunate fact that, with a few notable exceptions, there has been a marked lack of success in this application. It is my belief that a different approach-a different mathematics-is needed, and that AI provides just this approach. (Hand, quoted in Hand, 1985, pp. 6-7)We might distinguish among four kinds of AI.Research of this kind involves building and programming computers to perform tasks which, to paraphrase Marvin Minsky, would require intelligence if they were done by us. Researchers in nonpsychological AI make no claims whatsoever about the psychological realism of their programs or the devices they build, that is, about whether or not computers perform tasks as humans do.Research here is guided by the view that the computer is a useful tool in the study of mind. In particular, we can write computer programs or build devices that simulate alleged psychological processes in humans and then test our predictions about how the alleged processes work. We can weave these programs and devices together with other programs and devices that simulate different alleged mental processes and thereby test the degree to which the AI system as a whole simulates human mentality. According to weak psychological AI, working with computer models is a way of refining and testing hypotheses about processes that are allegedly realized in human minds.... According to this view, our minds are computers and therefore can be duplicated by other computers. Sherry Turkle writes that the "real ambition is of mythic proportions, making a general purpose intelligence, a mind." (Turkle, 1984, p. 240) The authors of a major text announce that "the ultimate goal of AI research is to build a person or, more humbly, an animal." (Charniak & McDermott, 1985, p. 7)Research in this field, like strong psychological AI, takes seriously the functionalist view that mentality can be realized in many different types of physical devices. Suprapsychological AI, however, accuses strong psychological AI of being chauvinisticof being only interested in human intelligence! Suprapsychological AI claims to be interested in all the conceivable ways intelligence can be realized. (Flanagan, 1991, pp. 241-242)16) Determination of Relevance of Rules in Particular ContextsEven if the [rules] were stored in a context-free form the computer still couldn't use them. To do that the computer requires rules enabling it to draw on just those [ rules] which are relevant in each particular context. Determination of relevance will have to be based on further facts and rules, but the question will again arise as to which facts and rules are relevant for making each particular determination. One could always invoke further facts and rules to answer this question, but of course these must be only the relevant ones. And so it goes. It seems that AI workers will never be able to get started here unless they can settle the problem of relevance beforehand by cataloguing types of context and listing just those facts which are relevant in each. (Dreyfus & Dreyfus, 1986, p. 80)Perhaps the single most important idea to artificial intelligence is that there is no fundamental difference between form and content, that meaning can be captured in a set of symbols such as a semantic net. (G. Johnson, 1986, p. 250)Artificial intelligence is based on the assumption that the mind can be described as some kind of formal system manipulating symbols that stand for things in the world. Thus it doesn't matter what the brain is made of, or what it uses for tokens in the great game of thinking. Using an equivalent set of tokens and rules, we can do thinking with a digital computer, just as we can play chess using cups, salt and pepper shakers, knives, forks, and spoons. Using the right software, one system (the mind) can be mapped into the other (the computer). (G. Johnson, 1986, p. 250)19) A Statement of the Primary and Secondary Purposes of Artificial IntelligenceThe primary goal of Artificial Intelligence is to make machines smarter.The secondary goals of Artificial Intelligence are to understand what intelligence is (the Nobel laureate purpose) and to make machines more useful (the entrepreneurial purpose). (Winston, 1987, p. 1)The theoretical ideas of older branches of engineering are captured in the language of mathematics. We contend that mathematical logic provides the basis for theory in AI. Although many computer scientists already count logic as fundamental to computer science in general, we put forward an even stronger form of the logic-is-important argument....AI deals mainly with the problem of representing and using declarative (as opposed to procedural) knowledge. Declarative knowledge is the kind that is expressed as sentences, and AI needs a language in which to state these sentences. Because the languages in which this knowledge usually is originally captured (natural languages such as English) are not suitable for computer representations, some other language with the appropriate properties must be used. It turns out, we think, that the appropriate properties include at least those that have been uppermost in the minds of logicians in their development of logical languages such as the predicate calculus. Thus, we think that any language for expressing knowledge in AI systems must be at least as expressive as the first-order predicate calculus. (Genesereth & Nilsson, 1987, p. viii)21) Perceptual Structures Can Be Represented as Lists of Elementary PropositionsIn artificial intelligence studies, perceptual structures are represented as assemblages of description lists, the elementary components of which are propositions asserting that certain relations hold among elements. (Chase & Simon, 1988, p. 490)Artificial intelligence (AI) is sometimes defined as the study of how to build and/or program computers to enable them to do the sorts of things that minds can do. Some of these things are commonly regarded as requiring intelligence: offering a medical diagnosis and/or prescription, giving legal or scientific advice, proving theorems in logic or mathematics. Others are not, because they can be done by all normal adults irrespective of educational background (and sometimes by non-human animals too), and typically involve no conscious control: seeing things in sunlight and shadows, finding a path through cluttered terrain, fitting pegs into holes, speaking one's own native tongue, and using one's common sense. Because it covers AI research dealing with both these classes of mental capacity, this definition is preferable to one describing AI as making computers do "things that would require intelligence if done by people." However, it presupposes that computers could do what minds can do, that they might really diagnose, advise, infer, and understand. One could avoid this problematic assumption (and also side-step questions about whether computers do things in the same way as we do) by defining AI instead as "the development of computers whose observable performance has features which in humans we would attribute to mental processes." This bland characterization would be acceptable to some AI workers, especially amongst those focusing on the production of technological tools for commercial purposes. But many others would favour a more controversial definition, seeing AI as the science of intelligence in general-or, more accurately, as the intellectual core of cognitive science. As such, its goal is to provide a systematic theory that can explain (and perhaps enable us to replicate) both the general categories of intentionality and the diverse psychological capacities grounded in them. (Boden, 1990b, pp. 1-2)Because the ability to store data somewhat corresponds to what we call memory in human beings, and because the ability to follow logical procedures somewhat corresponds to what we call reasoning in human beings, many members of the cult have concluded that what computers do somewhat corresponds to what we call thinking. It is no great difficulty to persuade the general public of that conclusion since computers process data very fast in small spaces well below the level of visibility; they do not look like other machines when they are at work. They seem to be running along as smoothly and silently as the brain does when it remembers and reasons and thinks. On the other hand, those who design and build computers know exactly how the machines are working down in the hidden depths of their semiconductors. Computers can be taken apart, scrutinized, and put back together. Their activities can be tracked, analyzed, measured, and thus clearly understood-which is far from possible with the brain. This gives rise to the tempting assumption on the part of the builders and designers that computers can tell us something about brains, indeed, that the computer can serve as a model of the mind, which then comes to be seen as some manner of information processing machine, and possibly not as good at the job as the machine. (Roszak, 1994, pp. xiv-xv)The inner workings of the human mind are far more intricate than the most complicated systems of modern technology. Researchers in the field of artificial intelligence have been attempting to develop programs that will enable computers to display intelligent behavior. Although this field has been an active one for more than thirty-five years and has had many notable successes, AI researchers still do not know how to create a program that matches human intelligence. No existing program can recall facts, solve problems, reason, learn, and process language with human facility. This lack of success has occurred not because computers are inferior to human brains but rather because we do not yet know in sufficient detail how intelligence is organized in the brain. (Anderson, 1995, p. 2)Historical dictionary of quotations in cognitive science > Artificial Intelligence
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20 application
nounapplication form — Antragsformular, das
3) (putting) Auftragen, das (to auf + Akk.); (administering) Anwendung, die; (of heat, liquids) Zufuhr, die; (employment; of rule etc.) Anwendung, die4) (Computing) Applikation, die* * *[æpli-]1) (a formal request; an act of applying: several applications for the new job; The syllabus can be obtained on application to the headmaster.) die Bewerbung2) (hard work: He has got a good job through sheer application.) der Fleiß3) (an ointment etc applied to a cut, wound etc.) das Auftragen* * *ap·pli·ca·tion[ˌæplɪˈkeɪʃən]n1. (formal request) for a job Bewerbung f ( for um + akk); for a permit Antrag m ( for auf/für + akk); for a patent Anmeldung f ( for von + dat)\application for bankruptcy Konkursantrag m\application for membership Mitgliedschaftsantrag m\application for a permit Bewilligungsgesuch mto put together/send off/submit an \application eine Bewerbung anfertigen/abschicken/einreichenon \application to sb/sth auf Anfrage bei jdm/etwfree information will be sent out on \application Gratisinformationen können angefordert werdenthe \application of a law/regulation die Anwendung eines Gesetzes/einer Regelungspreadsheet \application Tabellenkalkulationsprogramm ntword processing \application Textverarbeitungsprogramm nt\application for admission Zulassungsantrag m\application for quotation Börsenzulassungsantrag m\application for shares Aktienzeichnung fshares payable on \application bei Zeichnung zahlbare Aktien* * *["plI'keISən]n1) (for job etc) Bewerbung f (for um, für); (for grant, loan etc) Antrag m (for auf +acc), Gesuch nt (for für); (for patent) Anmeldung f (for +gen)to make application to sb for sth (form) (written) — bei jdm etw anfordern einen Antrag auf etw (acc) an jdn richten
2) (= act of applying of paint, ointment, lotion) Auftragen nt; (of dressing, plaster) Anlegen nt; (of force, pressure, theory, rules) Anwenden nt, Anwendung f; (of skills, knowledge) Anwendung f, Verwendung f; (of funds) Verwendung f (to für), Gebrauch m (to für); (COMPUT: = program) Anwendung f, Applikation f; (of embargo, sanctions) Verhängen nt, Verhängung f3) (= diligence, effort) Fleiß m, Eifer m5)See:= academic.ru/3248/applicability">applicability* * *application [ˌæplıˈkeıʃn] smany applications viele Verwendungszwecke;2. (Nutz)Anwendung f:3. Anwendung f, An-, Verwendbarkeit f:applications satellite Nutzsatellit mhave no application (to) keine Anwendung finden (bei), nicht zutreffen (auf akk), in keinem Zusammenhang stehen (mit)5. MEDa) Applikation f, Anwendung f, Anlegung f:b) Mittel n, Verband m, Umschlag mon the application of auf Antrag (gen);available on application auf Anfrage erhältlich;payable on application zahlbar bei Bestellung;application form Antrags-, Bewerbungs-, Anmeldungsformular n8. (Patent)Anmeldung f:file an application for a patent eine Patentanmeldung einreichen, ein Patent anmeldento bei)11. ASTRON Annäherung f (eines Planeten an einen Aspekt)* * *nounapplication form — Antragsformular, das
3) (putting) Auftragen, das (to auf + Akk.); (administering) Anwendung, die; (of heat, liquids) Zufuhr, die; (employment; of rule etc.) Anwendung, die4) (Computing) Applikation, die* * *(of paint) n.Anmeldung f.Antrag -¨e m.Anwendung f.Bewerbung f.Gesuch -e n.Nutzung -en f.Verwendung f.Zusatz -¨e m.
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