机器学习共11课课程资料学习笔记

function submitWithConfiguration(conf) addpath('./lib/jsonlab'); parts = parts(conf); fprintf('== Submitting solutions | %s...\n', conf.itemName); tokenFile = 'token.mat'; if exist(tokenFile, 'file') load(tokenFile); [email token] = promptToken(email, token, tokenFile); else [email token] = promptToken('', '', tokenFile); end if isempty(token) fprintf('!! Submission Cancelled\n'); return end try response = submitParts(conf, email, token, parts); catch e = lasterror(); fprintf( ... '!! Submission failed: unexpected error: %s\n', ... e.message); fprintf('!! Please try again later.\n'); return end if isfield(response, 'errorMessage') fprintf('!! Submission failed: %s\n', response.errorMessage); else showFeedback(parts, response); save(tokenFile, 'email', 'token'); end end function [email token] = promptToken(email, existingToken, tokenFile) if (~isempty(email) && ~isempty(existingToken)) prompt = sprintf( ... 'Use token from last successful submission (%s)? (Y/n): ', ... email); reenter = input(prompt, 's'); if (isempty(reenter) || reenter(1) == 'Y' || reenter(1) == 'y') token = existingToken; return; else delete(tokenFile); end end email = input('Login (email address): ', 's'); token = input('Token: ', 's'); end function isValid = isValidPartOptionIndex(partOptions, i) isValid = (~isempty(i)) && (1 <= i) && (i <= numel(partOptions)); end function response = submitParts(conf, email, token, parts) body = makePostBody(conf, email, token, parts); submissionUrl = submissionUrl(); params = {'jsonBody', body}; [code, responseBody] = system(sprintf('echo jsonBody=%s | curl -k -X POST -d @- %s', body, submissionUrl)); response = loadjson(responseBody); end function body = makePostBody(conf, email, token, parts) bodyStruct.assignmentSlug = conf.assignmentSlug; bodyStruct.submitterEmail = email; bodyStruct.secret = token; bodyStruct.parts = makePartsStruct(conf, parts); opt.Compact = 1; body = savejson('', bodyStruct, opt); end function partsStruct = makePartsStruct(conf, parts) for part = parts partId = part{:}.id; fieldName = makeValidFieldName(partId); outputStruct.output = conf.output(partId); partsStruct.(fieldName) = outputStruct; end end function [parts] = parts(conf) parts = {}; for partArray = conf.partArrays part.id = partArray{:}{1}; part.sourceFiles = partArray{:}{2}; part.name = partArray{:}{3}; parts{end + 1} = part; end end function showFeedback(parts, response) fprintf('== \n'); fprintf('== %43s | %9s | %-s\n', 'Part Name', 'Score', 'Feedback'); fprintf('== %43s | %9s | %-s\n', '---------', '-----', '--------'); for part = parts score = ''; partFeedback = ''; partFeedback = response.partFeedbacks.(makeValidFieldName(part{:}.id)); partEvaluation = response.partEvaluations.(makeValidFieldName(part{:}.id)); score = sprintf('%d / %3d', partEvaluation.score, partEvaluation.maxScore); fprintf('== %43s | %9s | %-s\n', part{:}.name, score, partFeedback); end evaluation = response.evaluation; totalScore = sprintf('%d / %d', evaluation.score, evaluation.maxScore); fprintf('== --------------------------------\n'); fprintf('== %43s | %9s | %-s\n', '', totalScore, ''); fprintf('== \n'); end %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Service configuration % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function submissionUrl = submissionUrl() submissionUrl = 'https://www-origin.coursera.org/api/onDemandProgrammingImmediateFormSubmissions.v1'; end