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Alex Held

Alex Held
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Towards Data Science

A Mixed-Methods Approach to Offline Evaluation of News Recommender Systems

Combining reader feedback from surveys with behavioral click data to optimize content personalization.

Oct 11

A Mixed-Methods Approach to Offline Evaluation of News Recommender Systems

Oct 11

Alex Held

A Digital Map of DER SPIEGEL’s 2023 Journalism

To directly access the interactive map, click here.

Dec 28, 2023

A Digital Map of DER SPIEGEL’s 2023 Journalism

Dec 28, 2023

Alex Held

Using OpenAI and Machine Learning to Discover News Topic Preferences

Disclaimer: This is a (kind of personal) project to get deeper into LLMs. I’m working with DER SPIEGEL, and we're currently working towards…

Dec 14, 2023

Using OpenAI and Machine Learning to Discover News Topic Preferences

Dec 14, 2023

Alex Held

How Der Spiegel Uses Machine Learning To Identify Its Most Valuable Potential Subscribers

If we consider the most active ten percent visitors on spiegel.de, less than a fifth of these users have subscribed with us, leaving us…

Nov 3, 2022

How Der Spiegel Uses Machine Learning To Identify Its Most Valuable Potential Subscribers

Nov 3, 2022

Alex Held

Combining user research & data science methods

Towards a more holistic approach to news audience research

Jun 22, 2022

Combining user research & data science methods

Jun 22, 2022

Alex Held

An in-depth reading experience

Exploring the gap between actual and predicted consumption time of news articles

Mar 31, 2022

An in-depth reading experience

Mar 31, 2022

Alex Held

The Power of Long Tail

Finding Evergreen Content through Usage Behavior

Mar 10, 2022

The Power of Long Tail

Mar 10, 2022

Alex Held

A Fair Evaluation of Audience Reach

Feb 1, 2022

Photo by National Cancer Institute on Unsplash. It shows Margaret Kelly.

Feb 1, 2022

Alex Held

Nutzung von Open Data im Rahmen der Radverkehrsstrategie

Wie können offene Daten Hamburg zu einer fahrradfreundlicheren Stadt machen?

Jul 18, 2017

Nutzung von Open Data im Rahmen der Radverkehrsstrategie

Jul 18, 2017

Alex Held

Alex Held

Data Scientist @ Der Spiegel. All views are my own. Data Analysis & Viz. Machine Learning. Open Data. Open Source. Citizen Science. twitter.com/helloheld

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