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1 couvert
couvert, e [kuvεʀ, εʀt]1. adjectivea. ( = habillé) tu n'es pas assez couvert you're not dressed warmly enoughb. couvert de [+ boutons, taches] covered in or withc. [ciel] overcastd. [piscine, court de tennis] indoor2. masculine nouna. ( = ustensiles) place setting ; ( = couteaux, fourchettes, cuillères) cutlery (Brit), silverware (US)c. (au restaurant = prix) cover charge* * *
1.
2.
1) ( plein) covered (de in, with)2) ( en intérieur) [piscine] indoor; [marché, stade, passage] covered3) Météorologie [ciel, temps] overcast
3.
nom masculin1) ( accessoires pour un repas) place settingavoir son couvert chez quelqu'un — fig to be a frequent dinner guest at somebody's house
un couvert en argent — a silver knife, fork and spoon
2) ( à payer au restaurant) cover charge3) ( abri) coversous le couvert d'un arbre/bois — under the cover of a tree/wood
4.
à couvert locution adverbiale under cover
5.
sous le couvert de locution prépositive ( apparence) under the pretence [BrE] of* * *kuvɛʀ, ɛʀt couvert, -e1. ppSee:2. adj1) (ciel) overcast2) (= coiffé d'un chapeau) wearing a hat3) (= habillé)bien couvert — well wrapped up, warmly dressed
4)couvert de — covered with, covered in
Cet arbre est couvert de fleurs au printemps. — This tree is covered with blossom in the spring.
Le chien est revenu couvert de boue. — The dog came back covered with mud., The dog came back covered in mud.
3. nmsous le couvert de — under the shelter of, figunder cover of
4. couverts nmpl(places) place settings, (couteaux et fourchettes) cutlery sg* * *A pp ⇒ couvrir.B pp adj1 ( plein) covered (de in, with); pages couvertes d'écriture closely-written pages; être couvert de diplômes to have a lot of qualifications;2 ( en intérieur) [piscine] indoor; [court de tennis] indoor, covered; [marché, stade, passage] covered;C nm1 ( accessoires pour un repas) place setting; un lave-vaisselle pour 12 couverts a dishwasher for 12 place settings; retirer un couvert to take away a place setting; ajouter un couvert to set another place; une table de six couverts a table set for six; mettre le couvert to lay the table; mettre trois couverts to lay ou set the table for three; mets-lui un couvert set a place for him/her; avoir son couvert chez qn fig to be a frequent dinner guest at sb's house; un repas de 12 couverts a meal for 12 (people);2 ( ustensiles) mettre les couverts to put out the knives and forks; un couvert en argent a silver knife, fork and spoon; ils mangent avec des couverts en argent they eat with silver cutlery; il manque les couverts ( sur la table) the knives and forks aren't on the table; couvert à dessert dessert knife, fork and spoon; un couvert à poisson a fish knife and fork;D à couvert loc adv under cover; se mettre à couvert to take cover; mettre sa fortune à couvert to safeguard one's fortune.E à couvert de loc prép être or rester à couvert de la pluie to be sheltered from the rain; être or rester à couvert d'un bois to take cover in a wood; se mettre à couvert de to shelter from.F sous le couvert de loc prép1 ( apparence) under the pretenceGB of; sous couvert de la plaisanterie under the guise of a joke;2 Admin écrire à X, sous le couvert de Y to write to X, care of Y.G couverte nf1 Imprim covering, facing;2 Art glaze.I→ link=couvrir couvrir————————2. [vêtu - chaudement] warmly-dressed, (well) wrapped-up ou muffled-up ; [ - décemment] covered (up)rester couvert [garder son chapeau] to keep one's hat on————————nom masculin————————à couvert locution adverbialea. [de projectiles] to be under coverb. [de critiques, de soupçons] to be safea. [de projectiles] to get under ou to take coverb. [de critiques, de soupçons] to cover ou to safeguard oneself————————à couvert de locution prépositionnelleici, nous serons à couvert de la pluie here, we'll be sheltered from the rain————————sous couvert de locution prépositionnellesous couvert de sollicitude, elle me suit partout under the pretext of being concerned for me, she follows me around everywheresous le couvert de locution prépositionnelle1. [sous l'apparence de] in the guise of2. [sous la responsabilité de]il l'a fait sous le couvert de son chef/frère he did it using his boss/brother as a shield3. (littéraire) [à l'abri de]II[kuvɛr] nom masculin[avec assiette et verre] place settingmettre le couvert to lay ou to set the tablej'ai mis trois couverts I've laid three places ou the table for three2. [prix d'une place au restaurant] cover charge -
2 Besteck
n; -(e)s, -e1. umg. Pl. auch -s; (Essbesteck) knife, fork and spoon; Koll. cutlery, Am. flatware; aus Silber: (table) silverware; sechsteiliges Besteck six-piece set (of cutlery, Am. flatware); Besteck putzen clean the silverware; hier fehlt noch ein Besteck another place setting is needed here* * *das Besteck(Essbesteck) cutlery;(Operationsbesteck) instruments* * *Be|stẹck [bə'ʃtɛk]nt -(e)s, -e1) (= Essbesteck) knives and forks pl, cutlery sing (Brit), flatware sing (US); (= Set, für ein Gedeck) set of cutlery (Brit) or flatware (US)ein silbernes Besteck — a set of silver cutlery (Brit) or flatware (US)
Herr Ober, ich habe kein Besteck — waiter, I haven't any cutlery (Brit) or flatware (US)
2) (= Instrumentensatz) set of instruments; (= Raucherbesteck) pipe-cleaning implements pl, smoker's set; (= Drogenbesteck) needles3) (NAUT) reckoning, ship's position* * *Be·steck<-[e]s, -e>[bəˈʃtɛk]nt\Besteck bilden to make up [or lay] a place settingdie \Bestecke auflegen to lay the tablebringen Sie uns bitte noch ein \Besteck please could you lay us another place [or bring us another set of cutlery2. (Instrumentensatz) set of instruments, instruments; Raucher smoker's set; (sl) Heroinsüchtige needles pl* * *das; Besteck[e]s, Bestecke1) cutlery setting; (ugs.): (Gesamtheit der Bestecke) cutlery2) (Med.) [set sing. of] instruments pl* * *1. umg pl auch -s; (Essbesteck) knife, fork and spoon; koll cutlery, US flatware; aus Silber: (table) silverware;sechsteiliges Besteck six-piece set (of cutlery, US flatware);Besteck putzen clean the silverware;hier fehlt noch ein Besteck another place setting is needed here2. MED (chirurgisches Besteck surgical) instruments pldas Besteck nehmen take the ship’s bearings* * *das; Besteck[e]s, Bestecke1) cutlery setting; (ugs.): (Gesamtheit der Bestecke) cutlery2) (Med.) [set sing. of] instruments pl* * *-e n.cutlery n. -
3 service
service [sεʀvis]━━━━━━━━━2. compounds━━━━━━━━━1. <a. service• prendre qn à son service to take sb into one's service► en service [installation, usine] in service• la mise en service des nouveaux autobus est prévue pour juin the new buses are due to be put into service in June► hors service [appareil] out of order attrib ; [personne] (inf) shattered (inf)b. ( = travail) duty• qui est de service cette nuit ? who's on duty tonight?c. ( = département) department ; ( = administration) service• les services de santé/postaux health/postal servicesd. ( = faveur, aide) servicee. (à table, au restaurant) service ; ( = pourboire) service charge• passe-moi les amuse-gueules, je vais faire le service hand me the appetizers, I'll pass them round• deuxième service ( = série de repas) second sittingf. ( = assortiment) set2. <• une télévision de service public a public television company ► les services secrets the secret service━━━━━━━━━━━━━━━━━Until 1997, French men over the age of 18 who were passed as fit, and who were not in full-time higher education, were required to do ten months' service militaire. Conscientious objectors were required to do two years' community service.Since 1997, military service has been suspended in France. However, all sixteen-year-olds, both male and female, are required to register for a compulsory one-day training course, the « journée défense et citoyenneté », which covers basic information on the principles and organization of defence in France, and also advises on career opportunities in the military and in the voluntary sector. Young people must attend the training day before their eighteenth birthday.* * *sɛʀvis
1.
nom masculin1) (action serviable, faveur)je peux te demander un service? — ( action serviable) can I ask you to do something for me?; ( faveur) can I ask you a favour [BrE]?
2) ( liaison) service3) ( fonctionnement)être en service — [ascenseur] ( en train de fonctionner) to be working; ( en état de fonctionner) to be in working order; [autoroute] to be open; [ligne de métro, de bus] to be running
être hors service — [ascenseur] to be out of order
entrer en service — [ligne de métro, autoroute] to be opened, to come into service
mettre en service — to bring [something] into service [appareil, véhicule]; to open [gare, autoroute, ligne de bus]
4) ( aide)rendre service à quelqu'un — [machine, appareil] to be a help to somebody; [route, passage, magasin] to be convenient (for somebody)
5) ( action de servir) serviceje suis à leur service — ( employé) I work for them; ( dévoué) I'm at their disposal
‘à votre service!’ — ( je vous en prie) ‘don't mention it!’, ‘not at all!’
‘que puis-je faire or qu'y a-t-il pour votre service?’ — ‘may I help you?’
6) ( à table) service12% pour le service — 12% service charge
faire le service — ( servir les plats) to serve; ( desservir) to act as waiter
7) ( des gens de maison) (domestic) serviceprendre quelqu'un à son service — to take somebody on, to engage somebody
escalier de service — backstairs (pl), service stairs (pl)
8) ( obligations professionnelles) serviceêtre de or en service — to be on duty
son service se termine à — he/she comes off duty at
être en service commandé — [policier] to be acting under orders
état de service(s) — record of service, service record
9) ( section administrative) departmentservice des urgences — casualty department GB, emergency room US
les services d'espionnage or de renseignements — the intelligence services
les services du Premier Ministre se refusent à tout commentaire — the Prime Minister's office has refused to comment
chef de service — ( dans une administration) section head; ( dans un hôpital) senior consultant
10) Arméeservice (militaire) — military ou national service
partir au service — (colloq) to go off to do one's military service
être bon pour le service — lit to be passed fit for military service; fig hum to be passed fit
reprendre du service — to re-enlist, to sign up again
11) ( vaisselle) set12) Religion service13) Sport service, serveêtre au service — to serve ou be serving
2.
services nom masculin pluriel servicesPhrasal Verbs:* * *sɛʀvis1. nm1) (= aide, faveur) favour Grande-Bretagne favor USAIl aime rendre service. — He likes to help.
2) (= travail)3) (= fonctionnement)être en service [machine] — to be in service, to be in operation
mettre en service — to put into service, to put into operation
hors service — not in use, (= en panne) out of order
4) (= bureau) department, section5) (= pourboire) service chargeLe service est compris. — Service is included.
6) (= repas)premier/deuxième service — first/second sitting
7) (= vaisselle) set, service8) TENNIS serve, serviceIl a un bon service. — He's got a good serve.
2. services nmplÉCONOMIE services* * *A nm1 (action serviable, faveur) je peux te demander un service? ( action serviable) can I ask you to do something for me?; ( faveur) can I ask you a favourGB?; pourrais-tu me rendre un petit service? could you do something for me?; tu m'as rendu service (en faisant cela) that was a great help; elle m'a rendu de nombreux services she's been very helpful; il est toujours prêt à rendre service he is always ready to help; rendre un mauvais service à qn to do sb a disservice; ce n'est pas un service à leur rendre or ce n'est pas leur rendre service que de faire leurs devoirs you are not helping them by doing their homework for them;2 ( liaison) service; service de bus bus service; le service d'été/d'hiver/de nuit the summer/winter/night service; le service n'est pas assuré le dimanche there's no service on Sundays; service réduit or partiel reduced service;3 ( fonctionnement) être en service [ascenseur] ( en train de fonctionner) to be working; ( en état de fonctionner) to be in working order; être en service [autoroute] to be open; [ligne de métro, de bus] to be running; [aérogare] to be open, to be in operation; ne pas être en service [ligne de métro] to be closed; être hors service [ascenseur] to be out of order; entrer en service [ligne de métro, aérogare, autoroute] to be opened, to come into service; mettre en service to bring [sth] into service [appareil, véhicule]; to open [gare, aérogare, autoroute, ligne de bus]; remettre en service to bring [sth] back into service [appareil]; to reopen [gare, autoroute] ; la mise or l'entrée en service de la ligne de bus the start of the new bus service; depuis la mise or l'entrée en service de cette route since the opening of this road;4 ( aide) rendre service à qn [machine, appareil] to be a help to sb; [route, passage, magasin] to be convenient (for sb); ça peut toujours rendre service it might come in handy;5 ( action de servir) gén service; être au service de son pays to serve one's country; ‘décoré pour service rendu’ ‘decorated for service to his/her country’; je suis à leur service ( employé) I work for them; ( dévoué) I'm at their disposal; travailler au service de la paix to work for peace; mettre son énergie/argent au service d'une cause to devote all one's energy/money to a cause; ‘à votre service!’ ( je vous en prie) ‘don't mention it!’, ‘not at all!’; ‘que puis- je faire or qu'y a-t-il pour votre service?’ ‘may I help you?’; ‘(nous sommes) à votre service madame’ ‘always pleased to be of assistance’;6 ( à table) service; le service est rapide ici the service here is quick; 30 euros service compris/non compris 30 euros service included/not included; le service n'est pas compris service is not included; 12% pour le service 12% service charge; faire le service ( servir les plats) to serve; ( desservir) to act as waiter; manger au premier service to go to the first sitting;7 ( des gens de maison) (domestic) service; être en service chez qn, être au service de qn to be in sb's service; entrer au service de qn to go to work for sb; prendre qn à son service to take sb on, to engage sb; avoir plusieurs personnes à son service to have several people working for one; escalier de service back stairs (pl), service stairs (pl); entrée de service tradesmen's entrance GB, service entrance;8 ( obligations professionnelles) service; avoir 20 ans de service dans une entreprise to have been with a firm 20 years; être de or en service to be on duty; l'infirmière de service the duty nurse, the nurse on duty; prendre son service à to come on duty at; elle n'avait pas assuré son service ce jour-là she hadn't come on duty that day; assurer le service de qn to cover for sb; il ne fume pas pendant les heures de service he doesn't smoke on duty; son service se termine à he comes off duty at; être en service commandé [policier] to be on an official assignment, to be acting under orders; état de service(s) record of service, service record; le service de nuit night duty; pharmacie de service duty chemist; être de service de garde ( dans un hôpital) to be on duty; ( médecin généraliste) to be on call; service en temps de paix Mil peace-time service; être or jouer l'idiot de service to be the house clown;9 ( section administrative) department; service administratif/culturel/du personnel administrative/cultural/personnel department; le service de psychiatrie/de cardiologie the psychiatric/cardiology department; le service des urgences the casualty department GB ou emergency room US; les blessés furent conduits au service des urgences the injured were taken to casualty GB ou to ER US; service de réanimation intensive care unit; les services de sécurité the security services; les services secrets the secret service; les services d'espionnage or de renseignements the intelligence services; service de dépannage breakdown service; service d'entretien ( département de l'entreprise) maintenance department; ( personnel) maintenance staff; les services du Premier Ministre se refusent à tout commentaire the Prime Minister's office has refused to comment; chef de service ( dans une administration) section head; ( dans un hôpital) senior consultant;10 Mil ( obligations militaires) service (militaire) military ou national service; service national national service; faire son service (militaire) to do one's military service; service actif active service; service civil non-military national service; partir au service○ to go off to do one's military service; être bon pour le service lit to be passed fit for military service; fig hum to be passed fit; reprendre du service to re-enlist ou sign up again; quitter le service to be discharged, to leave the forces;11 ( vaisselle) set; un service à thé a tea set; un service à café a coffee set; service à dessert or gâteau dessert set; service de table dinner service;12 Relig service; service religieux church service;13 Sport service, serve; être au service to serve ou be serving; Valérie au service Valérie to serve; changement de service change of service; faute de service fault.B services nmpl services; les biens et les services goods and services; avoir recours aux services de qn to call on sb's services; se passer or priver des services de qn to dispense with sb's services; services en ligne Ordinat online services.service après-vente, SAV ( département) after-sales service department; ( activité) after-sales service; service minimum reduced service; service d'ordre stewards (pl); service de presse (de ministère, parti, d'entreprise) press office; ( de maison d'édition) press and publicity department; ( livre) review copy; service public public service; Service du travail obligatoire, STO compulsory labourGB organization set up in 1943 during the German occupation of France; services sociaux Prot Soc social services.[sɛrvis] nom masculinmon service commence à 18 h I go on duty ou I start my shift ou I start work at 6 p.mprendre son service to go on ou to report for dutymon vieux manteau a repris du service (familier & humoristique) my old coat has been saved from the binle service de l'État public service, the service of the state2. [pour un client, un maître] serviceelle a deux ans de service comme femme de chambre she's been in service for two years as a chambermaidil a mis son savoir-faire au service de la société he put his expertise at the disposal of the companyservice compris ‘service included’service non compris ‘service not included’3. [série de repas] sittingnous irons au premier/deuxième service we'll go to the first/second sitting4. [département - d'une entreprise, d'un hôpital] departmenta. [département] legal departmentb. [personnes] legal expertsles services commerciaux the sales department ou divisionservice du personnel personnel department ou divisiona. [département] press officeb. [personnes] press officers, press office staff5. [aide] favourrendre un service à quelqu'un [suj: personne] to do somebody a favour, to help somebody outlui faire tous ses devoirs, c'est un mauvais service à lui rendre! it won't do her any good if you do all her homework for her!ça peut encore/toujours rendre service it can still/it'll always come in handy6. [assortiment - de linge, de vaisselle] setservice d'été/d'hiver summer/winter timetableservice non assuré le dimanche no service on Sundays, no Sunday service8. MILITAIREservice militaire ou national military/national serviceallez, bon/bons pour le service! (figuré & humoristique) it'll/they'll do!Pichot au service!, service Pichot! Pichot to serve!10. ÉLECTRICITÉ duty12. RELIGION————————services nom masculin pluriel2. [collaboration] servicesb. (euphémisme) [le licencier] to dispense with somebody's servicesoffrir ses services à quelqu'un to offer one's services to somebody, to offer to help somebody out3. POLITIQUEservices secrets ou spéciaux secret service————————en service locution adjectivale————————en service locution adverbialecet hélicoptère/cette presse entrera en service en mai this helicopter will be put into service/this press will come on stream in Mayservice après-vente nom masculin1. [prestation] after-sales service2. [département] after-sales department[personnes] after-sales staffservice d'ordre nom masculin1. [système] policingmettre en place un service d'ordre dans un quartier to establish a strong police presence in an area2. [gendarmes] police (contingent)[syndiqués, manifestants] stewards————————service public nom masculinpublic service ou utilityUntil 1996, all French men aged 18 and over were required to do ten months national service unless declared unfit. The system has been phased out and replaced by an obligatory journée d'appel de préparation à la défense, one day spent learning about the army and army career opportunities. The JAPD is obligatory for men and for women. The object of this reform is to professionalize the army. -
4 complet
complet, -ète [kɔ̃plε, εt]1. adjectivea. ( = entier) complete ; ( = exhaustif) comprehensiveb. ( = total) [échec, obscurité, découragement] completec. [homme, acteur] completed. ( = plein) [autobus, train] full ; (écriteau) « complet » [hôtel] "no vacancies" ; [parking] "full" ; [cinéma] "sold out" ; [match] "ground full"2. masculine noun( = costume) complet(-veston) suit* * *
1.
- ète kɔ̃plɛ, ɛt adjectif1) ( total) [arrêt, silence, révision] complete; [échec] total2) ( sans manques) [œuvres] complete; [enquête, gamme] full3) ( approfondi) comprehensive4) ( plein) [train, hôtel, salle] full‘complet’ — ( dans un hôtel) ‘no vacancies’; ( dans un théâtre) ‘sold out’; ( dans un parking) ‘full’
2.
* * *kɔ̃plɛ, ɛt (-ète)1. adj1) (auquel il ne manque rien) complete, (sportif, artiste) all-round2) (= plein) (hôtel) fullL'hôtel est complet. — The hotel is full.
"complet" — "no vacancies"
à temps complet (emploi, contrat, salariés, poste) — full-time
3) (farine, pain) wholemeal Grande-Bretagne wholewheat USAdu pain complet — wholemeal bread Grande-Bretagne wholewheat bread USA
2. nm(complet-veston) suitau complet; au grand complet; Une somptueuse réception du gouvernement français au complet à l'ambassade d'Allemagne. — A sumptuous reception for the entire French government at the German embassy.
Le premier match de l'équipe au grand complet. — Their first match as a full team.
au grand complet [réuni] [se réunir] — all together
La famille ne se réunit au complet une fois tous les deux ou trois ans. — The family only gets together once every two or three years.
* * *A adj1 ( total) [arrêt, silence, succès, accord, changement, révision] complete; [misère, échec, destruction] total;2 ( sans manques) [œuvres, liste, exposé, dossier] complete; [enquête, formation, spectacle, gamme] full; [artiste, athlète] all-round; les œuvres complètes de Proust the complete works of Proust; la collection complète de the whole collection of; c'est un idiot complet he's a complete idiot; c'est un homme complet he's an all-rounder; c'est complet! iron it's the last straw!;3 ( approfondi) comprehensive; très complet very comprehensive ; panorama aussi complet que possible as comprehensive a survey as possible; de façon (très) complète (very) thoroughly;4 ( plein) [train, autocar, hôtel, salle] full; ‘complet’ ( dans un hôtel) ‘no vacancies’; ( dans un théâtre) ‘sold out’, ‘full house’; ( dans un stade) ‘ground GB ou stadium full’; ( dans un parc de stationnement) ‘car park full’ GB, ‘parking lot full’ US; au grand complet entire ( épith); le gouvernement au complet the entire government; être (réuni) au (grand) complet to be all present; la famille est réunie au grand complet the whole family is present.( féminin complète) [kɔ̃plɛ, ɛt] adjectif2. [approfondi - compte-rendu, description] full, comprehensive ; [ - analyse, examen] thorough, full3. [entier] full4. [bondé - bus, métro, stade] full‘complet’a. [hôtel] ‘no vacancies’b. [parking] ‘full’nous sommes complets [salle de concert, théâtre, restaurant] we're (fully) bookedils vivent dans la pauvreté la plus complète they live in utter ou absolute ou abject povertyc'est complet! that's all we needed!, that's the last straw!, that caps it all!7. [fournissant tout le nécessaire]le lait est un aliment complet milk is a complete food, milk contains all the necessary nutrients[riz] browncomplet nom masculin[vêtement]complet, complet-veston (man's) suit————————au (grand) complet locution adjectivale -
5 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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