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Giulio Ermanno Pibiri

@jermp

Associate Prof. of CS at Ca' Foscari University of Venice. Indexing, Data Compression, Algorithms.

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05.10.2023
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Latest posts by Giulio Ermanno Pibiri @jermp

Insane!

05.03.2026 15:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
piscem - bioconda | Anaconda.org Install piscem with Anaconda.org. piscem is a next-generation compacted colored de Bruijn Graph-based indexer and mapper

The first fully Rust version of piscem! scRNA, scATAC, and bulk-RNA -> RAD files, accurately, in low memory, and FAST. And all in Rust :) anaconda.org/channels/bio...

28.02.2026 15:46 πŸ‘ 22 πŸ” 7 πŸ’¬ 3 πŸ“Œ 0

Wow, impressive feat! Congratulations!

27.02.2026 17:15 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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sshash Python bindings for the sshash compressed k-mer dictionary

Another Claude Code win. Did you ever want to be able to use SSHash from Python? To have access to the tiny space and query power of that index from directly within your high-level scripts? Now, with you can (for sshash-rs, at least)! Hope to do the same for piscem-rs soon

pypi.org/project/ssha...

21.02.2026 15:10 πŸ‘ 12 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1

Yes but β€œanonymously”, please πŸ˜‚

21.02.2026 15:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Haven't checked BlueSky for a few days. Very nice to see people commenting on DSB and its beautiful location! Thanks again to all contributors! It's been our pleasure to welcome you all in Venice πŸ™‚ #DSB2026

21.02.2026 13:49 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Aula Magna "Silvio Trentin"; property of Ca' Foscari University of Venice :)

21.02.2026 13:46 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

A truly nice read!

15.02.2026 16:33 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

I’d like to thank very much the (anonymous) reviewers for their valuable feedback!

13.02.2026 11:52 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Modern Minimal Perfect Hashing: A Survey | ACM Computing Surveys Given a set S of n keys, a perfect hash function for S maps the keys in S to the first m β‰₯ n integers without collisions. It may return an arbitrary result for any key not in S and is called minimal i...

Just accepted! dl.acm.org/doi/10.1145/...

12.02.2026 15:03 πŸ‘ 16 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

I almost feel guilty I did not write the Rust port πŸ˜… Rob and Claude did an amazing job!

12.02.2026 15:03 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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QuadRank: Engineering a High Throughput Rank Given a text, a query $\mathsf{rank}(q, c)$ counts the number of occurrences of character $c$ among the first $q$ characters of the text. Space-efficient methods to answer these rank queries form an i...

Now also on arxiv:
arxiv.org/abs/2602.04103

05.02.2026 10:53 πŸ‘ 5 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Nice work @npmalfoy.bsky.social! Can't wait for this at DSB :)

05.02.2026 00:28 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Congratulations guys!! πŸ‘

03.02.2026 20:06 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Surprising that they did not cite our work on repetition aware compression :) well, it’s rather new so probably not known enough yet

02.02.2026 15:49 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1

Really? I did not even know it existed :D

28.01.2026 18:09 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Nice! I'm glad to answer any questions/curiosities you guys might have. And, of course, we are open to collaboration.

27.01.2026 16:38 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Deadline for registration is Jan 31. Don’t miss it! See you all in beautiful Venice πŸ˜‰

26.01.2026 15:47 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

This preprint significantly improves the original design of SSHash to accelerate query and construction time. Looking back at one’s own work is very important and sometimes surprising ☺️

23.01.2026 08:55 πŸ‘ 9 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Very excited about this latest work led by @jermp.bsky.social! Since it's initial release, SSHash has served as the basis for several other tools (Fulgor, piscem, etc.). It was already very fast. It is now *substantially* faster!

www.biorxiv.org/content/10.6...

22.01.2026 21:16 πŸ‘ 24 πŸ” 10 πŸ’¬ 1 πŸ“Œ 1

I guess it's still KMC3.

20.01.2026 15:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
About Research on Algorithms VENice

DSB 2026 is organized by the RAVEN (Research on Algorithms VENice) research group at Ca' Foscari University of Venice, raven-laboratory.github.io.

Looking forward to seeing you in Venice!

10.12.2025 14:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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DSB 2026 - Registration

We are less than 1 month away from abstract submission!

**REGISTRATION** HERE: forms.gle/V9yrUXYvAsTP...
Registrations will be open until January 31st, 2026.

**ABSTRACT SUBMISSION** HERE: forms.gle/baHkDCZW1Lvx...
Submissions of abstracts for an oral presentation are open until January
2nd, 2026.

10.12.2025 14:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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DSB Workshop Data Structures in Bioinformatics

The workshop "Data Structures in Bioinformatics" is an annual scientific meeting at the crossroads of CS and biology. It is a unique forum to discuss compact data structures and algorithms in the
context of data processing for the life sciences. More details on DSB at dsb-meeting.github.io

10.12.2025 14:29 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
DSB 2026 Venice - February 18-19 Workshop Data Structures in Bioinformatics

The 12th edition of the 2-days workshop β€œData Structures in Bioinformatics” (DSB) will take place in Venice (Italy) on February 18-19th, 2026: dsb-meeting.github.io/DSB2026/

10.12.2025 14:29 πŸ‘ 10 πŸ” 9 πŸ’¬ 1 πŸ“Œ 1

Fantastic news Ragnar! Can't think of any better group for you :)

09.12.2025 20:56 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Congratulations to @brinda.eu and Francesca for this impressive work!! We will surely give you a hand in integrating the latest Fulgor version, which is considerably faster thanks to @ale-campa.bsky.social.

26.11.2025 20:07 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Windows?

20.11.2025 08:10 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Congratulations Zamin!!

16.11.2025 08:46 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Beautiful! Let’s see what he has to say then…

25.10.2025 22:15 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0