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Questions tagged [mechanicalturk]

Mechanical Turk is crowd sourcing web-service by Amazon Web Services. It provides a marketplace for tasks that can be performed by humans. Requesters publish HITs (Human Intelligence Tasks) that are performed by Workers. AWS provides web based API to create and manage HITs.

Amazon Web Services provides a Requester API and several software development kits for accessing the MTurk API via popular programming languages, including Ruby, .NET, Java, and Python.

The Requester API can also be accessed through:

Documentation:

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Randomizing the order of questions within a Mechanical Turk HIT

I've created a HIT that contains a bunch rather typical survey questions. I want every worker to answer all of the questions, but I want to have the order that the questions are presented in be randomized. Is this possible is in a standard…
zergylord
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Which MTurk parameter to use to mention no. of workers per HIT?

I am creating a HIT with external question (i.e. hosting the questions on my own website). I want to mention the maximum no. of workers that can take the HIT test. When I used MaxAssignments=50 for this purpose (to mention no. of distinct workers I…
user1725127
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Boto MTurkRequestError: 200 OK

I recently upgraded to boto 2.6, to fix an S3 broken pipe issue. Unfortunately, the new version seems to be causing problems with MTurk. Anytime I try to post a hit on MTurk, I get the following: MTurkRequestError: 200…
Rob
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How to load page that has unsecure script directly through code in mechanical turk

I am integrating amazon mechanical turk with my application (asp.net). So I have created an iframe in my amazon turk project.In this iframe I am giving the link to my application. The problem here is.. the server on which my application is hosted is…
LearningToCode
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Mechanical Turk rejects POST Requests

I'm trying to use the MTurk restful API, and POST to createHIT with a HITTypeID, however, I get the following error: 199c9aff-86a4-4280-8d2f-d956a53515b0 …
user1732480
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Accuracy of the answers for Amazon Mechanical Turk workers

Do you know any reference in the bibliography that reports a study on the accuracy of the answers of the (paid) workers in AMT? I would like to find some statistics on the number of correct answers and understand whether they act as experts or…
Eleanore
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how to limit the locale of amazon mturk?

I have an external page HIT based on the AWS command-line tools for mturk. I want to limit the HIT so that only people from a certain country can view/accept the HIT (say, India, etc.) How can I do that using the command-line tools?
kloop
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HIT won't submit

(This is a very basic newbie question) I created a HIT and started a batch, adding enough funds to allow for 10 assignments. When I submitted the batch, it takes me to the "manage" tab and displays "status: in progress" with a yellow status bar (I…
Peri Hartman
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How to reduce time allotted for a batch of HITs?

today I created a small batch of 20 categorization HITs with the name Grammatical or Ungrammatical using the web UI. Can you tell me the easiest way to manage this batch so that I can reduce its time allotted to 15 minutes from 1 hour and remove…
Pushpendre
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HIT instance has no attribute 'Title' for HITs returned by boto

I'm using the boto library to play around with Amazon MTurk. I want to retrieve some reviewable HITs, and display their properties. For example: hits = self.mturk_conn.get_reviewable_hits(page_size=30, status='Reviewable', sort_by='Expiration',…
MLister
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MTurk Command Line Tools Error: Bad version number in .class file

I am using the Mechanical Turk command line tools on Windows. When I try to run a command (e.g., getBalance, createQualificationType), I always get the following error: Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version…
user2249427
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Is there any limit when using notify_workers method in boto mturk

I came across this file: http://jessechandler.com/uploads/2/8/0/5/2805897/emailing-workers-mueller-chandler1.pdf, inside which it mentions 'you can send up to 100 workerids at a time' when using boto. It doesn't give a reason for this. Can someone…
MLister
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Amazon Mechanical Turk - Rturk - RestClient::BadRequest: 400 Bad Request

I'm trying to set up Rturk to outsource some work to Amazon's Mechanical Turk. When I try to create my HITs, I keep running into t he following error in console: RestClient::BadRequest: 400 Bad Request When I copy the URL and paste it in my browser…
Huy
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using a java project within an Android

I have a Java Project that carries out Mechanical Turk HIT Tasks and I would like to use this within an Android app. I tried to write the MTurk functions within my android app, but I couldn't get it to work due to some errors related to the sdk…
Nick Chris
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Getting started with Amazon Mechanical Turk for Android

I've been working on an app that uses the camera to ake images and I would like to send the image to Amazon's Mechanical turk service and get a description of he image from the service. I'm totally clueless abou how to do this though. I currently…
Nick Chris
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