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add complete spell.py of Norvig's impl.
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| Original file line number | Diff line number | Diff line change |
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| """Spelling Corrector. | ||
| Copyright 2007 Peter Norvig. | ||
| Open source code under MIT license: http://www.opensource.org/licenses/mit-license.php | ||
| """ | ||
|
|
||
| import re, collections | ||
|
|
||
| def words(text): return re.findall('[a-z]+', text.lower()) | ||
|
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||
| def train(features): | ||
| model = collections.defaultdict(lambda: 1) | ||
| for f in features: | ||
| model[f] += 1 | ||
| return model | ||
|
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||
| NWORDS = train(words(file('big.txt').read())) | ||
|
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| alphabet = 'abcdefghijklmnopqrstuvwxyz' | ||
|
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| def edits1(word): | ||
| s = [(word[:i], word[i:]) for i in range(len(word) + 1)] | ||
| deletes = [a + b[1:] for a, b in s if b] | ||
| transposes = [a + b[1] + b[0] + b[2:] for a, b in s if len(b)>1] | ||
| replaces = [a + c + b[1:] for a, b in s for c in alphabet if b] | ||
| inserts = [a + c + b for a, b in s for c in alphabet] | ||
| return set(deletes + transposes + replaces + inserts) | ||
|
|
||
| def known_edits2(word): | ||
| return set(e2 for e1 in edits1(word) for e2 in edits1(e1) if e2 in NWORDS) | ||
|
|
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| def known(words): return set(w for w in words if w in NWORDS) | ||
|
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| def correct(word): | ||
| candidates = known([word]) or known(edits1(word)) or known_edits2(word) or [word] | ||
| return max(candidates, key=NWORDS.get) | ||
|
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||
| ################ Testing code from here on ################ | ||
|
|
||
| def spelltest(tests, bias=None, verbose=False): | ||
| import time | ||
| n, bad, unknown, start = 0, 0, 0, time.clock() | ||
| if bias: | ||
| for target in tests: NWORDS[target] += bias | ||
| for target,wrongs in tests.items(): | ||
| for wrong in wrongs.split(): | ||
| n += 1 | ||
| w = correct(wrong) | ||
| if w!=target: | ||
| bad += 1 | ||
| unknown += (target not in NWORDS) | ||
| if verbose: | ||
| print 'correct(%r) => %r (%d); expected %r (%d)' % ( | ||
| wrong, w, NWORDS[w], target, NWORDS[target]) | ||
| return dict(bad=bad, n=n, bias=bias, pct=int(100. - 100.*bad/n), | ||
| unknown=unknown, secs=int(time.clock()-start) ) | ||
|
|
||
| tests1 = { 'access': 'acess', 'accessing': 'accesing', 'accommodation': | ||
| 'accomodation acommodation acomodation', 'account': 'acount', 'address': | ||
| 'adress adres', 'addressable': 'addresable', 'arranged': 'aranged arrainged', | ||
| 'arrangeing': 'aranging', 'arrangement': 'arragment', 'articles': 'articals', | ||
| 'aunt': 'annt anut arnt', 'auxiliary': 'auxillary', 'available': 'avaible', | ||
| 'awful': 'awfall afful', 'basically': 'basicaly', 'beginning': 'begining', | ||
| 'benefit': 'benifit', 'benefits': 'benifits', 'between': 'beetween', 'bicycle': | ||
| 'bicycal bycicle bycycle', 'biscuits': | ||
| 'biscits biscutes biscuts bisquits buiscits buiscuts', 'built': 'biult', | ||
| 'cake': 'cak', 'career': 'carrer', | ||
| 'cemetery': 'cemetary semetary', 'centrally': 'centraly', 'certain': 'cirtain', | ||
| 'challenges': 'chalenges chalenges', 'chapter': 'chaper chaphter chaptur', | ||
| 'choice': 'choise', 'choosing': 'chosing', 'clerical': 'clearical', | ||
| 'committee': 'comittee', 'compare': 'compair', 'completely': 'completly', | ||
| 'consider': 'concider', 'considerable': 'conciderable', 'contented': | ||
| 'contenpted contende contended contentid', 'curtains': | ||
| 'cartains certans courtens cuaritains curtans curtians curtions', 'decide': 'descide', 'decided': | ||
| 'descided', 'definitely': 'definately difinately', 'definition': 'defenition', | ||
| 'definitions': 'defenitions', 'description': 'discription', 'desiccate': | ||
| 'desicate dessicate dessiccate', 'diagrammatically': 'diagrammaticaally', | ||
| 'different': 'diffrent', 'driven': 'dirven', 'ecstasy': 'exstacy ecstacy', | ||
| 'embarrass': 'embaras embarass', 'establishing': 'astablishing establising', | ||
| 'experience': 'experance experiance', 'experiences': 'experances', 'extended': | ||
| 'extented', 'extremely': 'extreamly', 'fails': 'failes', 'families': 'familes', | ||
| 'february': 'febuary', 'further': 'futher', 'gallery': 'galery gallary gallerry gallrey', | ||
| 'hierarchal': 'hierachial', 'hierarchy': 'hierchy', 'inconvenient': | ||
| 'inconvienient inconvient inconvinient', 'independent': 'independant independant', | ||
| 'initial': 'intial', 'initials': 'inetials inistals initails initals intials', | ||
| 'juice': 'guic juce jucie juise juse', 'latest': 'lates latets latiest latist', | ||
| 'laugh': 'lagh lauf laught lugh', 'level': 'leval', | ||
| 'levels': 'levals', 'liaison': 'liaision liason', 'lieu': 'liew', 'literature': | ||
| 'litriture', 'loans': 'lones', 'locally': 'localy', 'magnificent': | ||
| 'magnificnet magificent magnifcent magnifecent magnifiscant magnifisent magnificant', | ||
| 'management': 'managment', 'meant': 'ment', 'minuscule': 'miniscule', | ||
| 'minutes': 'muinets', 'monitoring': 'monitering', 'necessary': | ||
| 'neccesary necesary neccesary necassary necassery neccasary', 'occurrence': | ||
| 'occurence occurence', 'often': 'ofen offen offten ofton', 'opposite': | ||
| 'opisite oppasite oppesite oppisit oppisite opposit oppossite oppossitte', 'parallel': | ||
| 'paralel paralell parrallel parralell parrallell', 'particular': 'particulaur', | ||
| 'perhaps': 'perhapse', 'personnel': 'personnell', 'planned': 'planed', 'poem': | ||
| 'poame', 'poems': 'poims pomes', 'poetry': 'poartry poertry poetre poety powetry', | ||
| 'position': 'possition', 'possible': 'possable', 'pretend': | ||
| 'pertend protend prtend pritend', 'problem': 'problam proble promblem proplen', | ||
| 'pronunciation': 'pronounciation', 'purple': 'perple perpul poarple', | ||
| 'questionnaire': 'questionaire', 'really': 'realy relley relly', 'receipt': | ||
| 'receit receite reciet recipt', 'receive': 'recieve', 'refreshment': | ||
| 'reafreshment refreshmant refresment refressmunt', 'remember': 'rember remeber rememmer rermember', | ||
| 'remind': 'remine remined', 'scarcely': 'scarcly scarecly scarely scarsely', | ||
| 'scissors': 'scisors sissors', 'separate': 'seperate', | ||
| 'singular': 'singulaur', 'someone': 'somone', 'sources': 'sorces', 'southern': | ||
| 'southen', 'special': 'speaical specail specal speical', 'splendid': | ||
| 'spledid splended splened splended', 'standardizing': 'stanerdizing', 'stomach': | ||
| 'stomac stomache stomec stumache', 'supersede': 'supercede superceed', 'there': 'ther', | ||
| 'totally': 'totaly', 'transferred': 'transfred', 'transportability': | ||
| 'transportibility', 'triangular': 'triangulaur', 'understand': 'undersand undistand', | ||
| 'unexpected': 'unexpcted unexpeted unexspected', 'unfortunately': | ||
| 'unfortunatly', 'unique': 'uneque', 'useful': 'usefull', 'valuable': 'valubale valuble', | ||
| 'variable': 'varable', 'variant': 'vairiant', 'various': 'vairious', | ||
| 'visited': 'fisited viseted vistid vistied', 'visitors': 'vistors', | ||
| 'voluntary': 'volantry', 'voting': 'voteing', 'wanted': 'wantid wonted', | ||
| 'whether': 'wether', 'wrote': 'rote wote'} | ||
|
|
||
| tests2 = {'forbidden': 'forbiden', 'decisions': 'deciscions descisions', | ||
| 'supposedly': 'supposidly', 'embellishing': 'embelishing', 'technique': | ||
| 'tecnique', 'permanently': 'perminantly', 'confirmation': 'confermation', | ||
| 'appointment': 'appoitment', 'progression': 'progresion', 'accompanying': | ||
| 'acompaning', 'applicable': 'aplicable', 'regained': 'regined', 'guidelines': | ||
| 'guidlines', 'surrounding': 'serounding', 'titles': 'tittles', 'unavailable': | ||
| 'unavailble', 'advantageous': 'advantageos', 'brief': 'brif', 'appeal': | ||
| 'apeal', 'consisting': 'consisiting', 'clerk': 'cleark clerck', 'component': | ||
| 'componant', 'favourable': 'faverable', 'separation': 'seperation', 'search': | ||
| 'serch', 'receive': 'recieve', 'employees': 'emploies', 'prior': 'piror', | ||
| 'resulting': 'reulting', 'suggestion': 'sugestion', 'opinion': 'oppinion', | ||
| 'cancellation': 'cancelation', 'criticism': 'citisum', 'useful': 'usful', | ||
| 'humour': 'humor', 'anomalies': 'anomolies', 'would': 'whould', 'doubt': | ||
| 'doupt', 'examination': 'eximination', 'therefore': 'therefoe', 'recommend': | ||
| 'recomend', 'separated': 'seperated', 'successful': 'sucssuful succesful', | ||
| 'apparent': 'apparant', 'occurred': 'occureed', 'particular': 'paerticulaur', | ||
| 'pivoting': 'pivting', 'announcing': 'anouncing', 'challenge': 'chalange', | ||
| 'arrangements': 'araingements', 'proportions': 'proprtions', 'organized': | ||
| 'oranised', 'accept': 'acept', 'dependence': 'dependance', 'unequalled': | ||
| 'unequaled', 'numbers': 'numbuers', 'sense': 'sence', 'conversely': | ||
| 'conversly', 'provide': 'provid', 'arrangement': 'arrangment', | ||
| 'responsibilities': 'responsiblities', 'fourth': 'forth', 'ordinary': | ||
| 'ordenary', 'description': 'desription descvription desacription', | ||
| 'inconceivable': 'inconcievable', 'data': 'dsata', 'register': 'rgister', | ||
| 'supervision': 'supervison', 'encompassing': 'encompasing', 'negligible': | ||
| 'negligable', 'allow': 'alow', 'operations': 'operatins', 'executed': | ||
| 'executted', 'interpretation': 'interpritation', 'hierarchy': 'heiarky', | ||
| 'indeed': 'indead', 'years': 'yesars', 'through': 'throut', 'committee': | ||
| 'committe', 'inquiries': 'equiries', 'before': 'befor', 'continued': | ||
| 'contuned', 'permanent': 'perminant', 'choose': 'chose', 'virtually': | ||
| 'vertually', 'correspondence': 'correspondance', 'eventually': 'eventully', | ||
| 'lonely': 'lonley', 'profession': 'preffeson', 'they': 'thay', 'now': 'noe', | ||
| 'desperately': 'despratly', 'university': 'unversity', 'adjournment': | ||
| 'adjurnment', 'possibilities': 'possablities', 'stopped': 'stoped', 'mean': | ||
| 'meen', 'weighted': 'wagted', 'adequately': 'adequattly', 'shown': 'hown', | ||
| 'matrix': 'matriiix', 'profit': 'proffit', 'encourage': 'encorage', 'collate': | ||
| 'colate', 'disaggregate': 'disaggreagte disaggreaget', 'receiving': | ||
| 'recieving reciving', 'proviso': 'provisoe', 'umbrella': 'umberalla', 'approached': | ||
| 'aproached', 'pleasant': 'plesent', 'difficulty': 'dificulty', 'appointments': | ||
| 'apointments', 'base': 'basse', 'conditioning': 'conditining', 'earliest': | ||
| 'earlyest', 'beginning': 'begining', 'universally': 'universaly', | ||
| 'unresolved': 'unresloved', 'length': 'lengh', 'exponentially': | ||
| 'exponentualy', 'utilized': 'utalised', 'set': 'et', 'surveys': 'servays', | ||
| 'families': 'familys', 'system': 'sysem', 'approximately': 'aproximatly', | ||
| 'their': 'ther', 'scheme': 'scheem', 'speaking': 'speeking', 'repetitive': | ||
| 'repetative', 'inefficient': 'ineffiect', 'geneva': 'geniva', 'exactly': | ||
| 'exsactly', 'immediate': 'imediate', 'appreciation': 'apreciation', 'luckily': | ||
| 'luckeley', 'eliminated': 'elimiated', 'believe': 'belive', 'appreciated': | ||
| 'apreciated', 'readjusted': 'reajusted', 'were': 'wer where', 'feeling': | ||
| 'fealing', 'and': 'anf', 'false': 'faulse', 'seen': 'seeen', 'interrogating': | ||
| 'interogationg', 'academically': 'academicly', 'relatively': 'relativly relitivly', | ||
| 'traditionally': 'traditionaly', 'studying': 'studing', | ||
| 'majority': 'majorty', 'build': 'biuld', 'aggravating': 'agravating', | ||
| 'transactions': 'trasactions', 'arguing': 'aurguing', 'sheets': 'sheertes', | ||
| 'successive': 'sucsesive sucessive', 'segment': 'segemnt', 'especially': | ||
| 'especaily', 'later': 'latter', 'senior': 'sienior', 'dragged': 'draged', | ||
| 'atmosphere': 'atmospher', 'drastically': 'drasticaly', 'particularly': | ||
| 'particulary', 'visitor': 'vistor', 'session': 'sesion', 'continually': | ||
| 'contually', 'availability': 'avaiblity', 'busy': 'buisy', 'parameters': | ||
| 'perametres', 'surroundings': 'suroundings seroundings', 'employed': | ||
| 'emploied', 'adequate': 'adiquate', 'handle': 'handel', 'means': 'meens', | ||
| 'familiar': 'familer', 'between': 'beeteen', 'overall': 'overal', 'timing': | ||
| 'timeing', 'committees': 'comittees commitees', 'queries': 'quies', | ||
| 'econometric': 'economtric', 'erroneous': 'errounous', 'decides': 'descides', | ||
| 'reference': 'refereence refference', 'intelligence': 'inteligence', | ||
| 'edition': 'ediion ediition', 'are': 'arte', 'apologies': 'appologies', | ||
| 'thermawear': 'thermawere thermawhere', 'techniques': 'tecniques', | ||
| 'voluntary': 'volantary', 'subsequent': 'subsequant subsiquent', 'currently': | ||
| 'curruntly', 'forecast': 'forcast', 'weapons': 'wepons', 'routine': 'rouint', | ||
| 'neither': 'niether', 'approach': 'aproach', 'available': 'availble', | ||
| 'recently': 'reciently', 'ability': 'ablity', 'nature': 'natior', | ||
| 'commercial': 'comersial', 'agencies': 'agences', 'however': 'howeverr', | ||
| 'suggested': 'sugested', 'career': 'carear', 'many': 'mony', 'annual': | ||
| 'anual', 'according': 'acording', 'receives': 'recives recieves', | ||
| 'interesting': 'intresting', 'expense': 'expence', 'relevant': | ||
| 'relavent relevaant', 'table': 'tasble', 'throughout': 'throuout', 'conference': | ||
| 'conferance', 'sensible': 'sensable', 'described': 'discribed describd', | ||
| 'union': 'unioun', 'interest': 'intrest', 'flexible': 'flexable', 'refered': | ||
| 'reffered', 'controlled': 'controled', 'sufficient': 'suficient', | ||
| 'dissension': 'desention', 'adaptable': 'adabtable', 'representative': | ||
| 'representitive', 'irrelevant': 'irrelavent', 'unnecessarily': 'unessasarily', | ||
| 'applied': 'upplied', 'apologised': 'appologised', 'these': 'thees thess', | ||
| 'choices': 'choises', 'will': 'wil', 'procedure': 'proceduer', 'shortened': | ||
| 'shortend', 'manually': 'manualy', 'disappointing': 'dissapoiting', | ||
| 'excessively': 'exessively', 'comments': 'coments', 'containing': 'containg', | ||
| 'develop': 'develope', 'credit': 'creadit', 'government': 'goverment', | ||
| 'acquaintances': 'aquantences', 'orientated': 'orentated', 'widely': 'widly', | ||
| 'advise': 'advice', 'difficult': 'dificult', 'investigated': 'investegated', | ||
| 'bonus': 'bonas', 'conceived': 'concieved', 'nationally': 'nationaly', | ||
| 'compared': 'comppared compased', 'moving': 'moveing', 'necessity': | ||
| 'nessesity', 'opportunity': 'oppertunity oppotunity opperttunity', 'thoughts': | ||
| 'thorts', 'equalled': 'equaled', 'variety': 'variatry', 'analysis': | ||
| 'analiss analsis analisis', 'patterns': 'pattarns', 'qualities': 'quaties', 'easily': | ||
| 'easyly', 'organization': 'oranisation oragnisation', 'the': 'thw hte thi', | ||
| 'corporate': 'corparate', 'composed': 'compossed', 'enormously': 'enomosly', | ||
| 'financially': 'financialy', 'functionally': 'functionaly', 'discipline': | ||
| 'disiplin', 'announcement': 'anouncement', 'progresses': 'progressess', | ||
| 'except': 'excxept', 'recommending': 'recomending', 'mathematically': | ||
| 'mathematicaly', 'source': 'sorce', 'combine': 'comibine', 'input': 'inut', | ||
| 'careers': 'currers carrers', 'resolved': 'resoved', 'demands': 'diemands', | ||
| 'unequivocally': 'unequivocaly', 'suffering': 'suufering', 'immediately': | ||
| 'imidatly imediatly', 'accepted': 'acepted', 'projects': 'projeccts', | ||
| 'necessary': 'necasery nessasary nessisary neccassary', 'journalism': | ||
| 'journaism', 'unnecessary': 'unessessay', 'night': 'nite', 'output': | ||
| 'oputput', 'security': 'seurity', 'essential': 'esential', 'beneficial': | ||
| 'benificial benficial', 'explaining': 'explaning', 'supplementary': | ||
| 'suplementary', 'questionnaire': 'questionare', 'employment': 'empolyment', | ||
| 'proceeding': 'proceding', 'decision': 'descisions descision', 'per': 'pere', | ||
| 'discretion': 'discresion', 'reaching': 'reching', 'analysed': 'analised', | ||
| 'expansion': 'expanion', 'although': 'athough', 'subtract': 'subtrcat', | ||
| 'analysing': 'aalysing', 'comparison': 'comparrison', 'months': 'monthes', | ||
| 'hierarchal': 'hierachial', 'misleading': 'missleading', 'commit': 'comit', | ||
| 'auguments': 'aurgument', 'within': 'withing', 'obtaining': 'optaning', | ||
| 'accounts': 'acounts', 'primarily': 'pimarily', 'operator': 'opertor', | ||
| 'accumulated': 'acumulated', 'extremely': 'extreemly', 'there': 'thear', | ||
| 'summarys': 'sumarys', 'analyse': 'analiss', 'understandable': | ||
| 'understadable', 'safeguard': 'safegaurd', 'consist': 'consisit', | ||
| 'declarations': 'declaratrions', 'minutes': 'muinutes muiuets', 'associated': | ||
| 'assosiated', 'accessibility': 'accessability', 'examine': 'examin', | ||
| 'surveying': 'servaying', 'politics': 'polatics', 'annoying': 'anoying', | ||
| 'again': 'agiin', 'assessing': 'accesing', 'ideally': 'idealy', 'scrutinized': | ||
| 'scrutiniesed', 'simular': 'similar', 'personnel': 'personel', 'whereas': | ||
| 'wheras', 'when': 'whn', 'geographically': 'goegraphicaly', 'gaining': | ||
| 'ganing', 'requested': 'rquested', 'separate': 'seporate', 'students': | ||
| 'studens', 'prepared': 'prepaired', 'generated': 'generataed', 'graphically': | ||
| 'graphicaly', 'suited': 'suted', 'variable': 'varible vaiable', 'building': | ||
| 'biulding', 'required': 'reequired', 'necessitates': 'nessisitates', | ||
| 'together': 'togehter', 'profits': 'proffits'} | ||
|
|
||
| if __name__ == '__main__': | ||
| print spelltest(tests1) | ||
| #print spelltest(tests2) | ||
|
|
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