Author

Ahsan Sanaullah

University of Central FloridaORCID 0009-0002-5692-8767Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

Click to filter author papers

Signature Assays, Organisms & Methods

Click to filter · or open tag

Approach:statistical model· 6 Assay:whole-genome sequencing· 5 Research Focus:variant calling· 4 Organism:human· 3 Research Focus:benchmarking· 2 Research Focus:database / resource· 1 Research Focus:gene regulatory network inference· 1 Research Focus:GWAS / association mapping· 1

Frequent Co-Authors

Degui ZhiiD· 7 shared Shaojie ZhangiD· 7 shared Ardalan NaseriiD· 2 shared Pramesh ShakyaiD· 2 shared Arun Deegutla· 1 shared Ben LangmeadiD· 1 shared Kecong TangiD· 1 shared Nathaniel K. BrowniD· 1 shared

Activity by Year

2021-2026 · peak 3/yr

Co-Author Collaboration Network

9 top collaborators · 25 mutual co-author links

Click any collaborator node to inspect or filter shared papers

Focal author (center)Selected co-authorORCID co-authorUnlinked name

Curved chords = mutual co-authorship

7 shared papersBioinformatics

Degui ZhiORCID

Mutual co-authors in cluster

Author profile →

7 papers

Recent·Most cited

RLBWT-Based LCP Computation in Compressed Space for Terabase-Scale Pangenome Analysis

Ahsan Sanaullah, Nathaniel K. Brown, Pramesh Shakya, Arun Deegutla, Ardalan Naseri, Ben Langmead, Degui Zhi, Shaojie Zhang

The paper introduces algorithms for constructing RLBWT-based compressed full text indexes in compressed space, reducing memory usage for large-scale pangenome analysis.

Bioinformatics · Jul 1, 2026Peer-reviewedBioinformatics

SLAB: A Sweep Line Algorithm in PBWT for Finding Haplotype Block Cores

Ardalan Naseri, Ahsan Sanaullah, Shaojie Zhang, Degui Zhi

This paper introduces SLAB, an algorithm for identifying haplotype block cores using PBWT, and applies it to UK Biobank data to detect selection signals.

bioRxiv · Jun 11, 2026 · PreprintBioinformatics

Haplotype-based Parallel PBWT for Biobank Scale Data

Kecong Tang, Ahsan Sanaullah, Degui Zhi, Shaojie Zhang

The paper introduces HP-PBWT, a parallel PBWT algorithm for efficient haplotype matching in large biobank datasets, achieving significant speed-ups in both IO-included and IO-excluded benchmarks.

Lecture notes in computer science · Oct 31, 2025Peer-reviewedBioinformatics

Dynamic μ-PBWT: Dynamic Run-length Compressed PBWT for Biobank Scale Data

Pramesh Shakya, Ahsan Sanaullah, Degui Zhi, Shaojie Zhang

This paper introduces Dynamic μ-PBWT, a memory-efficient data structure for dynamic updates of haplotype panels, supporting efficient queries and reducing memory usage compared to existing methods.

bioRxiv · Feb 4, 2025 · PreprintBioinformatics

Haplotype Matching with GBWT for Pangenome Graphs

Ahsan Sanaullah, Seba Villalobos, Degui Zhi, Shaojie Zhang

This paper defines haplotype matches in pangenome graphs and provides efficient algorithms for querying them using GBWT and related data structures.

bioRxiv · Feb 3, 2025 · PreprintBioinformatics

Minimal Positional Substring Cover: A Haplotype Threading Alternative to Li & Stephens Model

Ahsan Sanaullah, Degui Zhi, Shaojie Zhang

The paper introduces the MPSC problem as an alternative to the LS model for haplotype threading, enabling efficient haplotype reconstruction on large panels.

Genome Research · Jun 14, 2023Peer-reviewedBioinformatics

d-PBWT: dynamic positional Burrows-Wheeler transform

Ahsan Sanaullah, Degui Zhi, Shaojie Zhang

The paper introduces d-PBWT, a dynamic version of the PBWT data structure, enabling efficient insertion and deletion of haplotypes while maintaining PBWT functionality.

Bioinformatics · Feb 23, 2021Peer-reviewedBioinformatics