Microsoft Celeb
Microsoft Celeb 1M is a dataset of 10 million face images harvested from the Internet
The MS Celeb dataset includes 100,000 people and a target list of 1,000,000 individuals

Microsoft Celeb Dataset (MS Celeb)

Microsoft Celeb (MS Celeb) is a dataset of 10 million face images scraped from the Internet and used for research and development of large-scale biometric recognition systems. According to Microsoft Research, who created and published the dataset in 2016, MS Celeb is the largest publicly available face recognition dataset in the world, containing over 10 million images of nearly 100,000 individuals. Microsoft's goal in building this dataset was to distribute an initial training dataset of 100,000 individuals' images to accelerate research into recognizing a larger target list of one million people "using all the possibly collected face images of this individual on the web as training data". 1

These one million people, defined by Microsoft Research as "celebrities", are often merely people who must maintain an online presence for their professional lives. Microsoft's list of 1 million people is an expansive exploitation of the current reality that for many people, including academics, policy makers, writers, artists, activists, and journalists; maintaining an online presence is mandatory. This fact should not allow Microsoft nor anyone else to use their biometrics for research and development of surveillance technology. Many names in the target list even include people critical of the very technology Microsoft is using their name and biometric information to build. The list includes digital rights activists like Jillian York; artists critical of surveillance including Trevor Paglen, Jill Magid, and Aram Bartholl; Intercept founders Laura Poitras, Jeremy Scahill, and Glenn Greenwald; Data and Society founder danah boyd; and even Julie Brill, the former FTC commissioner responsible for protecting consumer privacy, to name only 8 out of 1 million.

Microsoft's 1 Million Target List

Below is a selection of 24 names from the full target list, curated to illustrate Microsoft's expansive and exploitative practice of scraping the Internet for biometric training data. The entire name file can be downloaded from You can email to have your name removed. Subjects whose images were distributed by Microsoft are indicated with the total image count. No number indicates the name is only exists in target list.

Name (images) Profession
Adrian Chen Journalist
Ai Weiwei (220) Artist, activist
Aram Bartholl Conceptual artist
Astra Taylor Author, director, activist
Bruce Schneier (107) Cryptologist
Cory Doctorow (104) Blogger, journalist
danah boyd Data & Society founder
Edward Felten Former FTC Chief Technologist
Evgeny Morozov (108) Tech writer, researcher
Glenn Greenwald (86) Journalist, author
Hito Steyerl Artist, writer
James Risen Journalist
Name (images) Profession
Jeremy Scahill (200) Journalist
Jill Magid Artist
Jillian York Digital rights activist
Jonathan Zittrain EFF board member
Julie Brill Former FTC Commissioner
Kim Zetter Journalist, author
Laura Poitras (104) Filmmaker
Luke DuBois Artist
Michael Anti Political blogger
Manal al-Sharif (101) Womens's rights activist
Shoshana Zuboff Author, academic
Trevor Paglen Artist, researcher

After publishing this list, researchers affiliated with Microsoft Asia then worked with researchers affiliated with China's National University of Defense Technology (controlled by China's Central Military Commission) and used the MS Celeb image dataset for their research paper on using "Faces as Lighting Probes via Unsupervised Deep Highlight Extraction" with potential applications in 3D face recognition.

In an April 10, 2019 article published by Financial Times based on data surfaced during this investigation, Samm Sacks (a senior fellow at the New America think tank) commented that this research raised "red flags because of the nature of the technology, the author's affiliations, combined with what we know about how this technology is being deployed in China right now". Adding, that "the [Chinese] government is using these technologies to build surveillance systems and to detain minorities [in Xinjiang]". 2

Four more papers published by SenseTime that also use the MS Celeb dataset raise similar flags. SenseTime is a computer vision surveillance company that until April 2019 provided surveillance to Chinese authorities to monitor and track Uighur Muslims in Xinjiang province, and had been flagged numerous times as having potential links to human rights violations.

One of the 4 SenseTime papers, "Exploring Disentangled Feature Representation Beyond Face Identification", shows how SenseTime was developing automated face analysis technology to infer race, narrow eyes, nose size, and chin size, all of which could be used to target vulnerable ethnic groups based on their facial appearances.

Earlier in 2019, Microsoft President and Chief Legal Officer Brad Smith called for the governmental regulation of face recognition, citing the potential for misuse, a rare admission that Microsoft's surveillance-driven business model had lost its bearing. More recently Smith also announced that Microsoft would seemingly take a stand against such potential misuse, and had decided to not sell face recognition to an unnamed United States agency, citing a lack of accuracy. In effect, Microsoft's face recognition software was not suitable to be used on minorities because it was trained mostly on white male faces.

What the decision to block the sale announces is not so much that Microsoft had upgraded their ethics, but that Microsoft publicly acknowledged it can't sell a data-driven product without data. In other words, Microsoft can't sell face recognition for faces they can't train on.

Until now, that data has been freely harvested from the Internet and packaged in training sets like MS Celeb, which are overwhelmingly white and male. Without balanced data, facial recognition contains blind spots. And without datasets like MS Celeb, the powerful yet inaccurate facial recognition services like Microsoft's Azure Cognitive Service the services might not exist at all.

 A visualization of 2,000 of the 100,000 identity included in the image dataset distributed by Microsoft Research. Credit: License: Open Data Commons Public Domain Dedication (PDDL)
A visualization of 2,000 of the 100,000 identity included in the image dataset distributed by Microsoft Research. Credit: License: Open Data Commons Public Domain Dedication (PDDL)

Microsoft didn't only create MS Celeb for other researchers to use, they also used it internally. In a publicly available 2017 Microsoft Research project called "One-shot Face Recognition by Promoting Underrepresented Classes," Microsoft leveraged the MS Celeb dataset to build their algorithms and advertise the results. Interestingly, Microsoft's corporate version of the paper does not mention they used the MS Celeb datset, but the open-access version published on explicitly mentions that Microsoft Research introspected their algorithms "on the MS-Celeb-1M low-shot learning benchmark task."

If Microsoft Research wants to make biometric data publicly available for surveillance research and development, perhaps they should start with releasing their employees own biometric data instead of scraping the Internet for journalists, artists, writers, actors, athletes, musicians, and academics. A publicly available face recognition dataset of all Microsoft Researcher employees would be a welcome replacement.

Who used Microsoft Celeb?

This bar chart presents a ranking of the top countries where dataset citations originated. Mouse over individual columns to see yearly totals. These charts show at most the top 10 countries.

Biometric Trade Routes

To help understand how Microsoft Celeb has been used around the world by commercial, military, and academic organizations; existing publicly available research citing Microsoft Celebrity Dataset was collected, verified, and geocoded to show the biometric trade routes of people appearing in the images. Click on the markers to reveal research projects at that location.

Citation data is collected using then dataset usage verified and geolocated.

Dataset Citations

The dataset citations used in the visualizations were collected from Semantic Scholar, a website which aggregates and indexes research papers. Each citation was geocoded using names of institutions found in the PDF front matter, or as listed on other resources. These papers have been manually verified to show that researchers downloaded and used the dataset to trainĀ or test machine learning algorithms. If you use our data, please cite our work.

Supplementary Information


  • 1 aMS-Celeb-1M: A Dataset and Benchmark for Large-Scale Face Recognition
  • 2 aMurgia, Madhumita. Microsoft worked with Chinese military university on artificial intelligence. Financial Times. April 10, 2019.