//CTOR
public AmtService(bool sandbox)
{
_mturkConfig = new MTurkConfig();
ServiceEndpoint = "";
AccessKeyId = "";
SecretAccessKey = "";
WebsiteUrl = "";
Sandbox = sandbox;
Configuration();
}
/// <summary>
/// Initializes a Mechanical Turk client using a custom client configuration
/// </summary>
/// <param name="config">The configuration used by this client</param>
/// <remarks>Custom configurations can be useful e.g. when the AWS credentials are retrieved from a different storage
/// mechanism than the application configuration file</remarks>
public MTurkClient(MTurkConfig config)
{
Config = config;
}
public LoginForm(MTurkConfig config)
{
this.config = config;
InitializeComponent();
}
/// <summary>
/// Initializes a Mechanical Turk client using the configuration from the application configuration file (see <see cref="MTurkConfig"/>)
/// </summary>
public MTurkClient()
{
Config = new MTurkConfig();
}
/// <summary>
/// Initializes a client using a custom client configuration
/// </summary>
/// <remarks>Custom configurations can be useful e.g. when the AWS credentials are retrieved from a different storage
/// mechanism than the application configuration file</remarks>
public SimpleClient(MTurkConfig config)
{
Proxy = new MTurkClient(config);
}
public void Execute(AnalysisExecutionContext context)
{
_context = context;
if (context.Results.Count <= 0)
{
context.OnExecutionProgress("MechanicalTurk", new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Canceled, 0, 0, 0));
return;
}
MechanicalTurkSettings settings = context.CustomField as MechanicalTurkSettings;
if (settings == null)
settings = new MechanicalTurkSettings(null, 3, new decimal(0.10), 300, 1800, 75);
string key = context.Key;
string secret = context.Secret;
MTurkConfig config = new MTurkConfig(_serviceURL, key, secret);
SimpleClient client = new SimpleClient(config);
List<QualificationRequirement> requirements = new List<QualificationRequirement>();
QualificationRequirement sucRequirement = new QualificationRequirement();
sucRequirement.QualificationTypeId = MTurkSystemQualificationTypes.ApprovalRateQualification;
sucRequirement.IntegerValueSpecified = true;
sucRequirement.IntegerValue = settings.PercentOfSuccess;
sucRequirement.Comparator = Comparator.GreaterThanOrEqualTo;
requirements.Add(sucRequirement);
if (settings.Locale != null)
{
QualificationRequirement qualReq = new QualificationRequirement();
qualReq.LocaleValue = new Locale() { Country = settings.Locale };
qualReq.Comparator = Comparator.EqualTo;
qualReq.QualificationTypeId = MTurkSystemQualificationTypes.LocaleQualification;
requirements.Add(qualReq);
}
string hitType = string.Empty;
try
{
if (context.UseDebugMode)
{
TimeSpan time = TimeSpan.Zero;
hitType = BenchmarkHelper.Invoke(new InvokeBenchmarkHandler(delegate(object state)
{
return hitType = client.RegisterHITType("Sentiment analysis", "Judge the sentiment expressed by the following text.",
settings.TimeToApprove, settings.TimeToFinish, settings.Reward, "sentiment nlp", requirements);
}), null, out time) as string;
Console.WriteLine("MechanicalTurk: HIT type for sentiment analysis has been created. HIT type ID is: {0} Execution time is: {1}", hitType, time.TotalMilliseconds);
}
else
hitType = client.RegisterHITType("Sentiment analysis", "Judge the sentiment expressed by the following text.",
settings.TimeToApprove, settings.TimeToFinish, settings.Reward, "sentiment, nlp", requirements);
NotificationSpecification notification = new NotificationSpecification();
notification.Transport = NotificationTransport.Email;
notification.EventType = new EventType[] { EventType.AssignmentReturned };
notification.Destination = settings.Email;
notification.Version = "2006-05-05";
if (settings.Email != null)
client.SetHITTypeNotification(hitType, notification, true);
else
{
notification.Destination = "*****@*****.**";
client.SetHITTypeNotification(hitType, notification, false);
}
}
catch (Exception ex)
{
AnalysisExecutionProgressEventArgs ea = new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Failed, context.Results.Count, 0, 0);
ea.Reason = ex.Message;
context.OnExecutionProgress("MechanicalTurk", ea);
if (ea.Cancel)
return;
}
string questionFile = Path.Combine(AppDomain.CurrentDomain.SetupInformation.ApplicationBase, "SentimentTemplate.xml");
string template = File.ReadAllText(questionFile);
QuestionForm formTemplate = QuestionUtil.DeserializeQuestionForm(template);
int processed = 0;
int failed = 0;
foreach (KeyValuePair<string, ResultSet> document in context.Results)
{
formTemplate.Question[0].QuestionIdentifier = document.Key;
formTemplate.Question[0].QuestionContent.Items[0] = Encoding.UTF8.GetString(Encoding.Default.GetBytes(document.Value.Source));
string question = QuestionUtil.SerializeQuestionForm(formTemplate);
HIT hit = new HIT();
hit.Expiration = DateTime.Now.AddDays(1);
hit.ExpirationSpecified = true;
hit.HITGroupId = "SentimentAnalysis";
hit.HITTypeId = hitType;
hit.MaxAssignments = settings.Assignments;
hit.MaxAssignmentsSpecified = true;
hit.Question = question;
HIT serverHit = null;
try
{
processed++;
if (context.UseDebugMode)
{
TimeSpan time = TimeSpan.Zero;
serverHit = BenchmarkHelper.Invoke(new InvokeBenchmarkHandler(delegate(object state)
{
return client.CreateHIT(hit);
}), null, out time) as HIT;
Console.WriteLine("MechanicalTurk: HIT {0} has been sent to Mechanical turk for processing. Execution time is: {1}", serverHit.HITId, time.TotalMilliseconds);
}
else
serverHit = client.CreateHIT(hit);
document.Value.AddOutput("MechanicalTurk", settings.Assignments, serverHit.HITId);
AnalysisExecutionProgressEventArgs e = new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Processed, context.Results.Count, processed, failed);
context.OnExecutionProgress("MechanicalTurk", e);
if (e.Cancel)
break;
}
catch (Exception ex)
{
failed++;
document.Value.AddOutput("MechanicalTurk", 0, "failed");
AnalysisExecutionProgressEventArgs ea = new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Failed, context.Results.Count, processed, failed);
ea.Reason = ex.Message;
context.OnExecutionProgress("MechanicalTurk", ea);
if (ea.Cancel)
break;
}
}
context.OnExecutionProgress("MechanicalTurk", new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Success, context.Results.Count, processed, failed));
}
public void Request(AnalysisExecutionContext context)
{
_context = context;
if (context.Results.Count <= 0)
{
context.OnExecutionProgress("MechanicalTurk", new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Canceled, 0, 0, 0));
return;
}
if (!context.Results.Values.First().GetServices().Contains("MechanicalTurk"))
{
context.OnExecutionProgress("MechanicalTurk", new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Canceled, 0, 0, 0));
return;
}
MechanicalTurkSettings settings = context.CustomField as MechanicalTurkSettings;
if (settings == null)
settings = new MechanicalTurkSettings(null, 3, new decimal(0.10), 300, 1800, 75);
string key = context.Key;
string secret = context.Secret;
MTurkConfig config = new MTurkConfig(_serviceURL, key, secret);
SimpleClient client = new SimpleClient(config);
int failed = 0;
int processed = 0;
try
{
foreach (KeyValuePair<string, ResultSet> document in context.Results)
{
string id = document.Value.GetPolarity("MechanicalTurk");
double count = document.Value.GetScore("MechanicalTurk");
count = (double.IsNaN(count)) ? 0 : count;
if (id == "negative" || id == "neutral" || id == "positive" || id == "failed" || id == "undefined")
continue;
IList<Assignment> assignments = null;
if (context.UseDebugMode)
{
TimeSpan time = TimeSpan.Zero;
assignments = BenchmarkHelper.Invoke(new InvokeBenchmarkHandler(delegate(object state)
{
return client.GetAssignmentsForHIT(id, 1, true);
}), null, out time) as IList<Assignment>;
Console.WriteLine("MechanicalTurk: Answers for {0} HIT have been received. Execution time is: {1}", id, time.TotalMilliseconds);
}
else
assignments = client.GetAssignmentsForHIT(id, 1, true);
if (assignments.Count < count)
{
processed++;
continue;
}
double confidence = 0;
IList<string> answers = DeserializeAnswers(assignments);
string polarity = MergeSentimentPolarity(answers, out confidence);
processed++;
document.Value.AddOutput("MechanicalTurk", double.NaN, polarity, confidence);
document.Value.AddReferencePolarity(polarity, "MechanicalTurk");
AnalysisExecutionProgressEventArgs e = new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Processed, context.Results.Count, processed, failed);
context.OnExecutionProgress("MechanicalTurk", e);
if (e.Cancel)
break;
}
}
catch (Exception ex)
{
failed++;
AnalysisExecutionProgressEventArgs ea = new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Failed, context.Results.Count, processed, failed);
ea.Reason = ex.Message;
context.OnExecutionProgress("MechanicalTurk", ea);
if (ea.Cancel)
return;
}
context.OnExecutionProgress("MechanicalTurk", new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Success, context.Results.Count, processed, failed));
}
public LoginForm(MTurkConfig config)
{
InitializeComponent();
cfg = config;
}
