Getting Started with Amazon Mechanical Turk - AWS Summit 2012 - NYCPresentation Transcript
Introducing AmazonMechanical TurkA Brief Overview of What, Why, and HowJohn Hoskins
AgendaWhat is Mechanical Turk?When would you use it?How are others using it - Case StudiesHow – Implementation options
What isMechanical Turk?
Mechanical Turk is a Marketplace.
Mechanical Turk is a marketplace for work.Mechanical Turk gives businesses and developers accessto an on-demand, scalable workforce. • Flexibility: Scale your workforce up and down quickly • Accuracy: Get high quality, efficient and cost effective results. • Price: Pay only when you are satisfied with the results. • Speed: Start receiving results in minutes
How it works:.“Design & Publish” “Validate, Pay & Go”
Workforce500,000 Workers190+ CountriesWho are the Workers?• Workers are global• Workers represent numerous skill sets• 24X7 Follow the sun availabilityManaging Your Workforce• You can choose who is allowed to work on your assignments• Can narrow to US based (i.e. when you need western culture competence)• Leverage qualifications to find your best Workers
When would you use Mechanical Turk?
Business ChallengesOur Community is generating 10,000 comments per day– how can we eliminate SPAM?We pull information from hundreds of sources – how dowe normalize and cleanse?We have thousands of legacy assets – how do we makethem searchable?Our heuristics need jump started – how can I generatethousands of reference data points fast?We need to add a new attribute to our data?
Business ChallengesRequires Human Judgment:Recognition, Reasoning, Context, Prior KnowledgeCannot be completely solved algorithmicallyHas unpredictable fluctuations in volume
How are businesses using it? Data Management Categorization Data Verification Classification Data Entry & Collection Tagging Data De-duplication Keywords Algorithm Training Sentiment Analysis Content & Media Business Services Moderate Photos & Content Search Relevancy Content Creation & Editing Data Gathering Transcription Enhancement
How are others using Mechanical Turk?
Search EnhancementMake your assets more discoverable• Categorize them into your search tree• Add descriptions, attributes and keywords• Enhance listing dataHow it works:Item description Workers select is sent to Items are placed Content is more the best categoryMechanical Turk in that branch of easily discovered and sub-category for review by the search tree through search for the item Workers
Data HandlingResolve Data conflicts directly in your business process• Remove duplicates• Normalize data entries• Resolve conflicts and collisions• Enhance entriesHow it works: Business Items flagged forProcess Ingests Workers review Business conflict are sentData Elements item and resolve Process to Mechanical from multiple conflict continues Turk sources
How to apply your task to Mechanical Turk?
Your Project Tasks“Working Backwards”• What are the business results that you want?• How will you use those results?• What format do the results need to be in?• Which tasks benefits from human intelligence?Break your overall project into smaller “tasks”• Consolidate like items and processesDefine instructions for each task
The Key components of your HITInstruction• Guidelines for how to do a HITData What kind of dress is this?• “batch” concept Cocktail Sun dressQuestion(s) Bridal dress
Work Catalog Workers discover available HITs through the listings catalog Name of Requester, Name of HIT, Price and Qualifications are displayed
HIT Example Specific instructions on what to do – and how to do it Providing as much information as available
Adjudication StrategiesLeverage different methods of determining the correct answerby designing for accuracy in your HIT:• Multiple Choice • Plurality • Known Answers (“Gold Standards”)• Free-form • Multiple HIT Workflow’s where a new Worker “edits” or “grades” previous Worker submissions• Creative Tasks • Bonus Payments
Your WorkersIdentify and manage your best Workers • All available Workers All Workers • 500,000 + • 24x7, 365 • Any Worker who completes a HIT Your Workers • Evaluate performance on your HITS Your Trusted • Your best Workers with proven quality and Workers availability
Balances & LeversLeverage market dynamics to optimize speed, price and accuracy tomeet your business needs. Speed Price Accuracy
Example WorkflowContent Moderation with API integration
Requester access: Apps & Solution Web UI API & CLT Providers• Easy Access • Programmatic • Experts at• Create HITS in Access Workflow design HTML • Multiple SDKS • They do the• Upload and • Massive scale training and manage data via management of CSV Workers for specific kinds of tasks
Self Service ApplicationsMechanical Turk supports a robust ecosystem of providersthat have built or can build solutions to meet your needs.
Custom Solution Providers
Advantages of Mechanical Turk Gives you access to an on-demand workforce Eliminates 100% EfficiencyStaffing Issues Maintain the flexibility your business demands Use only the capacity you need, when you need it Lowers Converts a fixed cost into a variable cost Costs Significantly reduces ongoing headcount expenses Offers a pay-as-you-go staffing model Eliminates lead time of interviewing and staffing Reduces work Work gets done faster, by working in parallelturnaround time Work continues around the globe, around the clock