🏆 Finalist — NIH Data Sharing Index (“S-Index”) Challenge

Ahmed Mahfouz

Leiden University

ORCID: 0000-0001-8601-2149

Also affiliated with Leiden University Medical Center, Netherlands Bioinformatics Centre, Center for Human Genetics, Institute of Human Genetics, Delft University of Technology

Biochemistry, Genetics and Molecular Biology

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 3%percentile
1.4Author DataRank

Indexed papers

2in pilot corpus
datarank_citation_only_1hop_v6· scope data_onlyMethodology
Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 2 indexed papers attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

Top data-sharing exemplar

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

Single-cell reference mapping to construct and extend cell-type hierarchies

NAR Genomics and Bioinformatics(2023)10.1093/nargab/lqad070
Top 20%
1.0DataRank
Top 20%38 citations

Mohammad Lotfollahi, Daniel Strobl, Avi Srivastava, Marcel J.T. Reinders, Fabian Joachim Theis +2 more

Papers

Driven by 11 papers — median percentile 68. Top paper: “Eleven grand challenges in single-cell data science”.

Eleven grand challenges in single-cell data science

Genome Biology(2020)10.1186/s13059-020-1926-6
N/A
1.1DataRank · unranked
1396 citations

Johannes Köster, Ewa Szczurek, Davis J. McCarthy, Stephanie C. Hicks, Mark D. Robinson +49 more

Single-cell reference mapping to construct and extend cell-type hierarchies

NAR Genomics and Bioinformatics(2023)10.1093/nargab/lqad070
Top 20%
1.0DataRank
Top 20%38 citations

Mohammad Lotfollahi, Daniel Strobl, Avi Srivastava, Marcel J.T. Reinders, Fabian Joachim Theis +2 more

12 Grand Challenges in Single-Cell Data Science

(2019)10.7287/peerj.preprints.27885v3
N/A
0.449DataRank · unranked
7 citations

Johannes Köster, Ewa Szczurek, Davis J. McCarthy, Stephanie C. Hicks, Mark D. Robinson +50 more

Single-cell reference mapping to construct and extend cell-type hierarchies

bioRxiv (Cold Spring Harbor Laboratory)(2022)10.1101/2022.07.07.499109
Top 44%
0.423DataRank
Top 44%7 citations

Mohammad Lotfollahi, Daniel Strobl, Avi Srivastava, Marcel J.T. Reinders, Fabian Joachim Theis +2 more

12 Grand challenges in single-cell data science

(2019)10.7287/peerj.preprints.27885v2
N/A
0.330DataRank · unranked
5 citations

Johannes Köster, Ewa Szczurek, Davis J. McCarthy, Stephanie C. Hicks, Mark D. Robinson +50 more

Author response: The single-cell eQTLGen consortium

(2020)10.7554/elife.52155.sa2
N/A
0.241DataRank · unranked
4 citations

DH de Vries, Hilde E. Groot, Gosia Trynka, CC Hon, Marc Jan Bonder +12 more

12 Grand Challenges in Single-Cell Data Science

(2019)10.7287/peerj.preprints.27885
N/A
0.228DataRank · unranked
2 citations

Johannes Köster, Ewa Szczurek, Davis J. McCarthy, Stephanie C. Hicks, Mark D. Robinson +50 more

12 Grand challenges in single-cell data science

(2019)10.7287/peerj.preprints.27885v1
N/A
0.193DataRank · unranked
2 citations

Johannes Köster, Ewa Szcureck, Stephanie C. Hicks, Mark D. Robinson, Catalina A. Vallejos +50 more

Identification of kidney cell types in scRNA-seq and snRNA-seq data using machine learning algorithms

Heliyon(2024)10.1016/j.heliyon.2024.e38567
N/A
0DataRank · unranked
3 citations

Siddharth Madapoosi, Stephen Blough, Jan Rosa, Sean Eddy, Laura H. Mariani +10 more

gsQTL: Associating genetic risk variants with gene sets by exploiting their shared variability

bioRxiv (Cold Spring Harbor Laboratory)(2024)10.1101/2024.09.13.612853
N/A
0DataRank · unranked
0 citations

Niccoló Tesi, Ahmed Mahfouz, Marcel J.T. Reinders, Gerard A. Bouland

scAGG: Sample-level embedding and classification of Alzheimer's disease from single-nucleus data

Computational and Structural Biotechnology Journal(2025)10.1016/j.csbj.2025.08.009
N/A
0DataRank · unranked
1 citations

Gerard A. Bouland, Ahmed Mahfouz, Marcel J.T. Reinders, Timo Verlaan