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About Amazon Mechanical Turk

What is Amazon Mechanical Turk?

In 1769, Hungarian nobleman Wolfgang von Kempelen astonished Europe past edifice a mechanical chess-playing automaton that defeated almost every opponent information technology faced. A life-sized wooden mannequin, adorned with a fur-trimmed robe and a turban, Kempelen'due south "Turk" was seated backside a chiffonier and toured Europe, misreckoning such bright challengers every bit Benjamin Franklin and Napoleon Bonaparte. To persuade skeptical audiences, Kempelen would slide open up the cabinet's doors to reveal the intricate set of gears, cogs and springs that powered his invention. He convinced them that he had built a car that fabricated decisions using artificial intelligence. What they did not know was the hush-hush behind the Mechanical Turk: a chess main cleverly concealed inside.

Today, nosotros build complex software applications based on the things computers do well, such as storing and retrieving large amounts of data or rapidly performing calculations. However, humans still significantly outperform the nigh powerful computers at completing such simple tasks as identifying objects in photographs – something children can do even before they learn to speak.

When we think of interfaces between human beings and computers, we unremarkably assume that the human is the one requesting that a task be completed, and the computer is completing the task and providing the results. What if this procedure was reversed and a calculator program could ask a man beingness to perform a task and return the results? What if it could coordinate many human beings to perform a task?

Amazon Mechanical Turk (MTurk) provides a service for service requesters (time to come "Requesters") to integrate Artificial Artificial Intelligence straight into their applications by making requests of humans. Requesters can use the MTurk web user interface or web services API to submit tasks to the MTurk web site, corroborate completed tasks, and incorporate the answers into their applications. When using the spider web services API, the transaction looks very much like any remote process call – the application sends the request, and the service returns the results. In reality, a network of human Workers (time to come "Workers") fuels this Artificial Artificial Intelligence by coming to the web site, searching for and completing tasks, and receiving reward for their work.

All Requesters need to do is write normal code. The pseudo code below illustrates how simple this tin can be.

                          read(photo);   photoContainsHuman = callMechanicalTurk(photo);    if (photoContainsHuman == TRUE) {       acceptPhoto();   } else {       rejectPhoto();   }                      

What problem does Amazon Mechanical Turk solve?

• For software developers, the Amazon Mechanical Turk (MTurk) web service solves the trouble of building applications that until at present take not worked well without man intelligence. Humans are much more effective at solving some types of problems, similar finding specific objects in pictures, evaluating dazzler, or translating text. The thought of the MTurk spider web service is to give developers a programmable interface to a network of humans to solve these kinds of problems and incorporate this human intelligence into their applications.
• For businesses and entrepreneurs who want tasks completed, the MTurk service solves the trouble of accessing a vast network of human intelligence with the efficiencies and toll-effectiveness of computers. Oftentimes people do non movement forward with certain projects considering the cost to plant a network of skilled Workers to do the work outweighs the value of completing it. By turning the stock-still costs into variable costs that calibration with their needs, the MTurk web service eliminates this barrier and allows projects to be completed that before were non economical.
• For people who want to earn coin in their spare time, the MTurk spider web site solves the problem of finding work y'all can do wherever and whenever you want using the skills you already possess.

How practice Requesters ensure their tasks are completed in a high-quality manner?

Requesters take several options for ensuring their HITs (Human being Intelligence Tasks) are completed in a high-quality manner.

• Requesters take the opportunity to approve completed HITs before having to pay for them. There are many ways Requesters tin approve HITs, ranging from auto-blessing them sight unseen, to car-approving them when they receive two answers to the aforementioned Striking that match, to manually approving some or all completed HITs.
• Requesters tin can specify that people who work on their tasks must first complete a qualification test, thus giving Requesters the opportunity to vet the skill level of the people working on their HITs beforehand. Over time people who do work on the Amazon Mechanical Turk web site volition have statistics associated with them based on how accurately they have completed other HITs. These statistics, such as the percent of HITs they've submitted that have been approved, let Requesters to specify further that just Workers with certain qualifications can work on their HITs.

Who completes the tasks on Amazon Mechanical Turk and how do they consummate them?

• Virtually anyone can consummate tasks on the Amazon Mechanical Turk (MTurk) spider web site using the skills they already have and according to their own schedule. The only requirement to consummate tasks and collect payment from Requesters is a computing device connected to the Cyberspace and to be at to the lowest degree 18-years-one-time.
• Earning money through the MTurk spider web site is equally easy as searching for HITs on the site, accepting those HITs, completing them, and collecting the advantage once the Hitting is approved by the Requester.
• To make money by completing tasks using the MTurk web site, visit worker.mturk.com.

What kind of work can be done using Amazon Mechanical Turk?

• Anyone tin submit near any task that can exist completed using a computing device continued to the Internet.
• Amazon came upwardly with the idea for Amazon Mechanical Turk to help solve specific internal information processing problems that required human judgment and intelligence. Nosotros apace realized that we had invented something unique and incredibly useful, and decided to expose it equally an external web service so that Requesters tin can create their ain innovative applications that use human being intelligence equally a core component.

How practise Workers collect coin for the tasks they complete?

When the Requester approves a submitted Hitting, Amazon Mechanical Turk automatically displays Worker earnings on their Dashboard and Earnings pages. Earnings are transferred to their virtual US bank account or to their Amazon.com gift bill of fare balance on a regular schedule.

Can any business concern utilize Amazon Mechanical Turk or exercise they need to understand how to use web services and APIs?

Businesses can create and publish HITs on Amazon Mechanical Turk using the Requester spider web user interface (UI), the API, or the command line interface (CLI). Visit the Requester User Interface Guide to learn more nigh the UI or the programmer getting started guide to learn about the API or CLI.

Tin Requesters outside of the US use Amazon Mechanical Turk to get tasks completed?

We currently have registrations from the following countries:

Americas

Barbados, Chile, Canada, French Guiana, Guadeloupe, Martinique, Puerto Rico, United states of america, US Minor Islands, US Virgin Islands

Africa

Botswana, Mayotte, Réunion, South Africa

Asia and Pacific

Australia, French Polynesia, French southern and antarctic landsa, Hong Kong, Israel, Japan, New Caledonia, New Zealand, Qatar, Singapore, South korea, Taiwan

Europe

Austria, Belgium, Denmark, Republic of estonia, Finland, France, Germany, Iceland, Republic of ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovenia, Kingdom of spain, Sweden, Switzerland, Uk

We're working hard to make Amazon Mechanical Turk (MTurk) available for more Requesters. Want to suggest a country? Allow us know.

Where can I view and edit my name, email address, password, and payment methods

Yous can view and edit your account information by accessing your My Account folio. Delight annotation that your MTurk Requester account is associated with your Amazon.com account so when y'all edit your personal settings, they will be inverse on the respective Amazon.com business relationship.

Where tin I view and edit my contact accost information?

Yous tin can view and edit your contact address on Amazon.com.

Payments & Fees

How practice I buy prepaid HITs on Amazon Mechanical Turk?

Follow these steps to buy prepaid HITs:

1. From your Amazon Mechanical Turk business relationship, go to My Account -> Buy Prepaid HITs.
2. Enter in the corporeality y'all would like to purchase.
3. Select the credit or debit card on file or enter in new credit or debit menu information.
4. Confirm your purchase.

Annotation: As a Usa Requester, you lot may exist prompted to establish a verified Amazon Payments account if y'all programme to brand a purchase above sure amounts. You can create a verified Amazon Payments business relationship at any time hither.

How are the fees calculated?

You lot can review Amazon Mechanical Turk pricing here.

What rounding rules are applied when calculating fees?

After the fee is calculated, we round half up amounts greater than $0.01 – we round down if the partial amount is less than half a penny, and round upwards otherwise. For example, $0.104 is rounded to $0.x, $0.105 is rounded to $0.11, and $0.108 is rounded to $0.11.

How are Workers paid?

Workers volition exist paid and Amazon Mechanical Turk (MTurk) fees will be charged when you approve submitted work. If y'all decline the work, the Worker is not paid and you are not charged the MTurk fees. MTurk Prepaid HITs are subject to Participation Agreement. You can review MTurk pricing hither.

Can I use whatever Amazon Payments business relationship to purchase prepaid HITs?

No. You tin purchase prepaid HITs using your credit or debit menu on the Purchase Prepaid HITs page.

How practice I receive a refund for prepaid HITs?

If yous would like a refund of your prepaid HIT purchase, delight contact customer support.

Refunds are candy to the original payment method used to prepay the account. You lot can detect this information on the My Account page.

• When requesting a refund, provide the refund amount and the payment method used when you contact customer back up.
• If in that location is Liability on the account, we are non able to procedure a refund. The amount held in Liability is visible on the My Account page.
• Refunds are issued for the full amount of the available residue on any given transaction.

How practice I receive a receipt for prepaid HITs?

You can contact mturk.com/contact-united states to take a copy of your receipt emailed to you. In order to process your request, please provide the transaction time menstruation to be included in the receipt. Annotation: If you have signed up for AWS Billing, invoicing is automated on a monthly footing and also available for download from the Billing Console.

You lot tin download your transaction history for your records here.

Who are Amazon Mechanical Turk Masters?

Amazon Mechanical Turk (MTurk) has built technology which analyzes Worker performance, identifies high performing Workers, and monitors their operation over time. Workers who accept demonstrated excellence across a broad range of HITs are awarded the Masters Qualification. Masters must proceed to pass our statistical monitoring to maintain the MTurk Masters Qualification.

Exercise you collect tax reporting information from not-Us based Workers?

Aye, all non-U.Southward. based Workers are required to provide their tax information through a tax information interview before doing any work on Mechanical Turk just every bit U.Southward. Workers are required to do. The tax information interview collects the U.S. revenue enhancement status (for U.S. person or non-U.Due south. person), the proper noun, and the permanent residence address of the individual that will written report the income on an income tax return.

What are funds held for liability?

Funds held for liability is the sum of your assignment liability and fee liability.

Funds held for assignment liability is an estimated amount representing how much you would have to pay Workers if Workers submitted results for every consignment you are requesting, and yous approved all of the results. We hold these funds because we need to ensure that Workers are paid promptly for their work on Amazon Mechanical Turk (MTurk). Your assignment liability will increase as you create new HITs and will decrease as you approve or reject assignments. If you take no outstanding assignments, you lot will have zero consignment liability.

Funds held for fee liability is an estimated amount representing how much you lot would have to pay MTurk if Workers submitted results for every assignment you are requesting, and you approved all of the results. Your fee liability will increase as y'all create new HITs and will decrease as you approve or reject assignments. If you have no outstanding assignments, y'all will have zero fee liability.

AWS Billing & Payments

Why should MTurk customers adopt AWS Billing?

1. Past linking your MTurk Requester account ID to an AWS business relationship ID and opting-in to AWS Billing, your MTurk fees will exist included on your AWS bill. Your AWS neb includes MTurk fee details and your AWS account ID which yous may need for accounting purposes. Your transaction history is nevertheless available for download from the MTurk Requester site.
2. If you desire to manage billing for multiple MTurk accounts through a single account, you can sign upward for an account with AWS Organizations which will enable y'all to link other AWS accounts and their associated MTurk Requester accounts under an AWS Organizational business relationship to consolidate billing.
3. With AWS billing, invoicing is sent via electronic mail on a monthly basis and as well bachelor for download from the Billing Console on demand. If you lot need to configure invoicing without a credit card or if you need additional support visit mturk.com/contact-the states.

How can I enable AWS Billing?

Yous need to link your AWS account to your MTurk account to use this pick. Yous can and then enable the AWS billing option from your account settings page on MTurk. Once your AWS account is linked, and y'all have opted in to AWS Billing you are all set to create HITs on MTurk. You will pay equally you get results which volition be billed via your anniversary AWS beak. AWS Billing is a one manner door.

1. Create an AWS Business relationship: To create an AWS Account, provide your contact data, payment information, verify your account and select a back up plan to continue. Y'all volition receive an email from AWS once you have completed registration and your business relationship is set to use. Create an AWS business relationship.
2. Link Your AWS Business relationship with Your MTurk Requester Business relationship: On the developer page, link your MTurk Requester Account with your AWS Account. Please click Link your AWS Account and sign-in with your AWS Root User credentials. Once your accounts are linked, you will be redirected dorsum to this page.
3. Opt In for AWS Billing: Once y'all have linked your AWS account to your MTurk Requester account yous will encounter the pick to opt in for AWS Billing on your MTurk business relationship page.

How practise I ready an AWS Organizational account?

1. Go to Amazon Web Services abode page and click Sign In to the Console.
2. To link the two accounts you lot first need to choose the AWS account that all charges will be billed to and create an Organisation.
3. To add together boosted MTurk Requester accounts under your AWS Organizational account, those Requester accounts must exist linked to an AWS business relationship and opted-in to AWS billing.
4. Then invite other accounts equally member accounts to join your AWS Organization account.
5. Once the accounts are linked all MTurk fees will be billed through the AWS Organizational account.

I have open HITs and take enabled AWS Billing, once I approve these HITs will they exist billed to my AWS neb?

No, HITs that were created prior to opting in for AWS Billing once approved will be paid from your MTurk prepaid account.

Can I opt-in for postpaid billing without an AWS account?

No, you need to link your AWS business relationship to your MTurk business relationship to utilize this characteristic. You lot tin hands setup an AWS account here if you do not already have one.

How do I approve, decline, or bonus work submitted by Workers in the AWS billing model?

Similar to today you approve, decline, and bonus submitted HITs past Workers on the Requester website. Any unapproved submitted HITs will be automatically approved after 30 days.

Tin I utilize a promotional credit or my EDP towards my AWS neb?

No, currently MTurk is an ineligible AWS service and you cannot use a promotional credit or your EDP on Amazon Mechanical Turk services.

I'k an existing MTurk Requester, can I continue to apply my electric current MTurk payment method?

You can continue to pre-fund your MTurk account to create HITs for now.

I'm an existing MTurk Requester, instead of a refund can I employ my existing MTurk residuum to my AWS beak?

We are unable to apply your prepaid funds to your AWS bill. Once any open prepaid HITs have expired, all remaining funds in your prepaid account will be refunded to yous via your original payment method.

I'chiliad an MTurk Worker, will my payments become affected with this change?

No, this change volition not affect your payments. You lot will go along to receive your payments once your work gets approved.

How will the MTurk usage testify up on my AWS bill?

All canonical assignments volition appear on your AWS nib nether Mechanical Turk.

Blueprint, Publish, and Manage HITs

How do I create a HIT?

The Amazon Mechanical Turk (MTurk) Requester website allows Requesters to access the MTurk Worker customs. The Requester UI Guide explains how to design, publish, and manage your HITs on the Requester website.

What exercise I need to know about creating surveys on MTurk?

Check out our web log postal service to learn more well-nigh getting started with Surveys and the importance of selecting Qualifications. You can also create Custom Qualifications to include or exclude Workers beyond multiple survey batches or for longitudinal research. You may also want to consider deploying linked surveys.

What happens when I refuse work?

When you reject an assignment, the Worker who performed the assignment is non paid, and y'all are non charged the standard Amazon Mechanical Turk fee for the HIT. The rejection may touch your reputation as a Requester and the approval rate of the Worker who submitted the results. Please note that you may not reject an consignment without good cause and rejections tin can be reversed if you determine that a fault was made.

How long does Amazon Mechanical Turk keep my HITs?

MTurk will remove HITs and corresponding Assignment data from your account after 120 days. If you lot require admission to HIT and Assignment data for longer than 120 days, we recommend you download the HIT results and store them locally.

Are there restrictions or prohibited uses of Amazon Mechanical Turk?

You may not use Amazon Mechanical Turk for illegal or objectionable activities. Please refer to the policy page for examples. For example, Requesters are not immune to collect personally identifiable information from Workers.

How do I prevent Workers who take worked on my HIT (e.g. Surveys) once from taking part in subsequent HITs?

This can exist achieved by using qualifications. Requesters can create a Qualification Type or use an existing Qualification Type to assign information technology to the Workers who have completed the Hit (e.yard. survey) once. When creating the next Hit, Requesters tin can specify that only Workers who accept not been granted the Qualification Type tin can piece of work on the Striking. This tin be washed through the UI and the API.

How practise I use Premium Qualifications?

Requesters can specify criteria at the time of creating the projection. The available attributes tin be specified in the "Worker Requirements" department of the Requester Website.

Can I use Premium Qualifications for any kind of HIT?

Yes, using the Create Project characteristic on the Requester Website, Requester customers can use Premium Qualifications for any kind of HIT that has ten or more than Assignments, including Surveys. The Sentiment and Categorization Project types practise not support Qualifications, nor does the Create HITs Individually feature.

What is the cost of using Premium Qualifications?

The employ of each of the Premium Qualifications incurs an boosted fee per approved assignment based on the specific Premium Qualification called. For more detail, see our Pricing folio.

What if I need to create and manage Custom Qualifications for my Hitting?

Custom Qualifications tin can be designed past Requesters to select or exclude specific worker attributes. You can also create Custom Qualifications to include or exclude Workers beyond multiple survey batches or for longitudinal research. For more information, see our documentation on Managing Qualification Types.

How exercise I retry publishing a Batch with a failed payment?

You can retry publishing past following these three steps:

1. If your batch had an input data file, download the input data file on the failed Batch Details folio. You lot will need this file for Step iii.
2. Go to: Create -> New Batch with an Existing Project, and click Publish Batch on the same Project y'all previously used.
3. If your batch had an input data file, upload the input file from Stride one.
4. Go through the remaining steps of publishing a batch.

If you continue to experience issues, please review your recent purchases on the My Business relationship page.

What is the maximum number of HITs in a batch?

The maximum number of HITs in a batch is 250,000 (or 500 in our Sandbox environment).

In order to publish more than the maximum number of HITs at a time, y'all may break your input file into multiple smaller files containing less than or equal to the maximum number of HITs. If your use case requires you to publish more than than the maximum number of HITs in a single batch, please contact united states.

Tin I create and manage HITs programmatically?

Amazon Mechanical Turk (MTurk) provides Requester facing APIs as well as developer tool kits (SDKs). To become started, visit our developer Getting Started Guide.

Why do I need to have an AWS account to utilise MTurk APIs?

In club to phone call the MTurk APIs, Requesters must have registered for AWS accounts and retrieved their IAM credentials. This is considering MTurk uses the AWS account to identify and allow access for developers using the MTurk APIs. We're not using AWS to track MTurk API usage thus MTurk volition non announced in AWS bills for Requesters.

Can I employ MTurk to publish tasks containing personal or sensitive data?

No. Equally a public crowd market, MTurk is non designed for sharing or publishing HITs containing personal or sensitive information. It is your responsibleness as a Requester to determine whether your HIT content contains any personal or sensitive information. For more data encounter our Acceptable Use Policy.

Can I post a survey on MTurk that asks Workers for basic demographic information?

Yeah, so long as your survey does not derive any personally identifiable information from Workers. For example, you may ask Workers for their occupation, relationship status, etc., but you may not ask Workers for personally identifiable data, such as their full proper name, e-mail address, telephone number, or equivalent in any Hitting including survey HITs. Surveys should only be posted for legitimate academic or marketplace research purposes.

Are there restrictions on what I tin can use Worker IDs for?

Unique Worker IDs are made available by MTurk to facilitate your utilize of the MTurk service just and for no other purpose. For case, y'all may use Worker IDs to distinguish between Workers who complete your HITs, and manage Workers such as tracking how many HITs a particular Worker has completed. You lot may not apply Worker IDs to try to derive the real identity of whatever Worker, or otherwise publicly post or share them.

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Source: https://www.mturk.com/help

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