
Appen supports a wide range of search use cases and provides data across the entire lifecycle
Data Sourcing
We can source large volumes of high-quality data. We have pre-labeled datasets that get you started right away or we can collect new data that is unbiased, globally representative and specific to your content relevance application.
Data Preparation
We can annotate all your data types. Our products are equipped to handle image, video, audio, text, 3D sensor and multi-modal data, and our in-house team and local crowd expertise can ensure you get the right outcomes the first time.
Model Evaluation












Relevance
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Ads Evaluation ensures your content and landing pages are relevant to the query, context and culture of your target audience
- Whole Page Evaluation determines how well your page performs – to user intent and against your competitors
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Side-by-side Evaluation enables you to confidently deploy model updates after validating delivery of better results in a blind test

Cataloguing
- Taxonomy Development ensures your customers' search terms and your tags are aligned, to improve content recommendations
- Categorization ensures similar offerings are grouped and displayed at the same time (e.g., similar songs or video content)
- Support across all data types including image, video, audio, text and multimedia

Content Moderation
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Newsfeed and Social Media evaluations ensure content is credible and reliable
- Related Search identifies auto-fill and auto-correct suggestions, as well as identifying “junk” or irrelevant content

Map and Navigation Search
- Geo-Local Evaluation ensures the latest local results appear
- Map Verification ensures point-to-point navigation is accurate, safe and efficient
- Entity Evaluation and Correction ensures accurate business information (e.g., websites, hours, contact details)

Over 10 years' experience as the market leader for content relevance projects
Our search relevance expertise will ensure your AI-powered search engines are delivering the best results for your audience
Large scale
In-house data experts who manage delivery of 1B+ content relevance judgments each year for the largest technology companies.
Globally representative
Local expertise
Secure Data Access
Data security requirements are met for customers working with personally identifiable information (PII), protected health information (PHI), and other sophisticated compliance needs.
Enterprise-level security to protect sensitive client data




Secure Crowd
We offer a suite of secure service offerings with flexible options to ensure data security via secure facilities, secure remote workers, and onsite services to meet specific business needs.
Enterprise-level security to protect sensitive client data




Secure Facilities
We have sites in multiple geographies to support projects with Personally Identifiable Information (PII) and other sensitive data, as well as the right people, policies, and processes in place for a range of security levels, up to government level certification.
Enterprise-level security to protect sensitive client data




Secure Workspace
With our ISO 27001 accredited remote Secure Workspace solution, our global crowd can work on your sensitive projects remotely, without having to access a physical secure facility. This allows the diversity of our remote crowd to reduce bias and support multiple languages even through global disruptions.
Enterprise-level security to protect sensitive client data



