Case Study

Data Annotation to Optimize Searchability in E-Commerce

A community of 200+ TAUS contributors was formed based on their product affinity in various product categories, ranging from make-up and collectible coins to professional audio equipment, to annotate data in several European languages. The annotated data was to be used in training the client’s high-tech Machine Learning systems to optimize webshop functionalities such as searchability.

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The Client

A multinational e-commerce corporation

Facilitates consumer-to-consumer and business-to-consumer sales through their website

Serve a worldwide market with their online shopping site that's best known for its auctions

The Challenge

Data annotation is the categorization and labeling of data to be used in the training of AI applications. Training datasets must be carefully categorized and annotated for each specic use case. High-quality, human-powered data annotation allows companies to build and improve AI implementations which results in enhanced customer experience solutions such as product recommendations, relevant search engine results, computer vision, speech recognition, chatbots, and more.

Our client aimed to nd an ecient and scalable data annotation solution to train their ML systems to optimize their webshop functionalities. In particular, to improve the searchability on their webshop and enhance the relevance of search results for the customers. The client’s webshop features a wide array of products for a global customer base. The annotated data had to be highly accurate so that the resulting machine learning model could identify and match the search terms with the corresponding products. To achieve that, the formation of language-specic annotator teams and platform customization were required to maximize eciency. Besides their language skills, the contributor communities were formed based on their product anity for miscellaneous product categories ranging from make-up and collectible coins to professional audio equipment to ensure accuracy and attention to nuances in the annotation process.

The Solution

The client’s trust in TAUS’ expertise in the data space and commitment to quality in all phases from community recruitment and training to platform customization led them to partner with us to design a custom solution.

In close collaboration with the client, the TAUS HLP operations manager designed a customized data annotation solution on our proprietary HLP platform:

- Scalability: The TAUS HLP Platform is easily scalable to allow for large volumes of data to be processed by a big number of data annotators in a controlled environment

- Customization: The client requested customized data annotation features to maximize eciency and effectiveness. Our teams were able to create a solution that exactly matched the client’s specific requirements

- Community based on product affinity: A highly engaged community of HLP data annotators was recruited per language based on the workers’ product affinity

- Competitive cost structure: Thanks to the short supply chain in the TAUS HLP Platform, we were able to offer a competitive cost structure while ensuring fair compensation to the communities engaged, based on our Fair Cooperation Principle.

The Results

250+ Contributors

5+ Languages

150+ Hours of platform customization work

60+ Hours of recruitment work to form communities based on product affinity

The TAUS HLP Team created a solution where our client could have access to a data annotation platform tailored to their specific needs and a community of language-specific data annotators who are recruited after careful evaluation. The customizations implemented included the following:

- Customized data tokenization based on client specifications

- On-screen explanation of the tags to use to annotate the data, including client-specific examples (1)

- Easy one-click tagging experience to optimize tagging speed and effort (2)

- Intuitive tag dragging feature to group connected tokens with the same tag (3)

- Customizable workflow to add multiple annotation/review steps as per client’s requirements

- Project level QA checks to efficiently handle consistency checks across the whole project (4)

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