Skip to main contentMark Keller

I recently defended my PhD in Bioinformatics and Integrative Genomics at Harvard Medical School, advised by Professor Nils Gehlenborg. I graduated from the University of Maryland, College Park in 2019, where I studied Computer Science. My research focuses on interactive visualization of single-cell atlas data.

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I maintain the following open-source tools and utilities.

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April 29, 2025

Defense of PhD

January 28, 2025

Our report on The State of Single-Cell Atlas Data Visualization in the Biological Literature has been uploaded to OSF Preprints. It is accompanied by an interactive survey browser.

November 12, 2024

Co-led the visualization interoperability track at the 2024 SpatialData Workshop in Basel, Switzerland (described in a BioHackrXiv preprint).

October 16, 2024

🎉 Our paper describing Use-Coordination was presented at IEEE VIS 2024 and is available via IEEE Xplore!

October 8, 2024

✅ Third meeting with dissertation advisory committee.

September 27, 2024

🎉 Our paper describing Vitessce has been published in Nature Methods!

September 16, 2024

Presented at the 2024 Kidney Precision Medicine Project fall meeting in Bethesda, MD.

September 12, 2024

Presented a poster at the 2024 HMS Department of Biomedical Informatics Science Day.

August 28, 2024

Attended the 2024 Amgen Biotech Day in Cambridge, MA.

July 9, 2024

Presented at a workshop for trainees during the 2024 Summer Institute in Biomedical Informatics.

May 1, 2024

Second meeting with dissertation advisory committee.

April 27, 2024

Use-Coordination preprint uploaded to OSF Preprints.

April 2, 2024

Co-organized the Scverse hackathon in Boston and co-led a project to improve visualization of SpatialData in Vitessce.

April 1, 2024

Contributed to preprint describing our approach to visualize 3D spatial data in a mixed reality environment with linked views on a 2D display.

March 20, 2024

Presented our work on interactive visualization of kidney micro-compartmental segmentations at both the CureGN Analytic Workshop and NEPTUNE Pathology Committee meetings.

March 17, 2024

Presented a poster at the NIH-CZI Junior Investigators Atlas Builders meeting in Bethesda, MD.

December 5, 2023

Co-led a roundtable discussion at the 2023 ASCB Cell Bio conference titled Data Visualization in the Age of Cell Atlases: How will spatial technologies influence visualization in cell biology? in Boston, MA.

October 30, 2023

Served as a teaching fellow for BMI 709 Creating Biomedical Dashboards with R Shiny.

October 26, 2023

Presented at the 2023 IEEE VIS conference during the Application Spotlight titled Visualization for spatial single-cell atlases in Melbourne, Australia.

October 4, 2023

Attended the 2023 Kidney Precision Medicine Project fall meeting in Bethesda, MD.

September 21, 2023

Attended the Spatial Biology Summit hosted by Alpenglow Biosciences in Cambridge, MA.

September 17, 2023

Poster accepted for presentation at the 2023 ASN Kidney Week meeting in Philadelphia, PA.

September 14, 2023

Presented a poster at the 2023 HMS Department of Biomedical Informatics Science Day.

September 6, 2023

Presented research-in-progress at the HMS Department of Biomedical Informatics trainee talk series.

August 28, 2023

Attended the SenNet Consortium Meeting on Single Cell Spatial Transcriptomics/Proteomics in Washington, DC.

July 10, 2023

🎉 OME-Zarr ecosystem manuscript published in Histochemistry and Cell Biology.

June 16, 2023

Presented at the Inter-Lab Meeting on Visualization and Image Data Management.

June 10, 2023

Contributed to preprint about the kidney chromatin landscape by developing a visualization tool to explore the data.

May 19, 2023

Presented a lightning talk at the 2023 HMS BIG PhD program retreat.

March 28, 2023

🎉 BEAT-PD manuscript published in PLOS Digital Health.

March 20, 2023
February 28, 2023

Presented at the 2023 Kidney Precision Medicine Project spring meeting in Washington, DC.

February 25, 2023

Contributed to preprint about OME-Zarr ecosystem.

January 23, 2023

🎉 Cistrome Explorer published in Bioinformatics.

October 19, 2022

Polyphony was presented at IEEE VIS 2022 in Oklahoma City, OK by Furui Cheng.

September 26, 2022

🎉 Polyphony published in IEEE TVCG.

July 13, 2022

Presented Polyphony at the ISMB BioVis COSI, winning the best long abstract award.

July 11, 2022

Presented Vitessce at the ISMB Technology Track in Madison, WI.

May 11, 2022

🎉 Viv published in Nature Methods.

April 6, 2022

Presented Vitessce at Keystone Symposium on Single Cell Biology in Florence, Italy.

January 24, 2022

Served as a teaching fellow for BST 281 Genomic Data Manipulation.

January 19, 2022

Completed preliminary qualifying exam (PQE).

October 18, 2021

Vitessce preprint uploaded to OSF Preprints.

September 2, 2020

🎒 First day of PhD program.