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Posts by Sadamori Kojaku

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Uncovering simultaneous breakthroughs with a robust measure of disruptiveness An embedding-based disruption measure not only robustly captures disruptive works but also reveals simultaneous discoveries.

The Higgs mechanism was proposed in 1964 by three independent teams.

But here is the puzzle🤔: the "disruption index" says Higgs's paper is among the least disruptive ever.

So what is going on?

In our new paper, just out in #ScienceAdvances, we take up this puzzle: doi.org/10.1126/scia... 👇

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2 weeks ago 42 20 1 2
GitHub - yy/embedding-disruptiveness: Code repository for "Uncovering simultaneous breakthroughs with a robust measure of disruptiveness" paper Code repository for "Uncovering simultaneous breakthroughs with a robust measure of disruptiveness" paper - yy/embedding-disruptiveness

📄 paper: www.science.org/doi/10.1126/...
💻 code: github.com/yy/embedding...
📦 pip: pypi.org/project/embe...
✍️ Blog: munjungkim.github.io/embedding-di...

w/ @skojaku.bsky.social @yyahn.bsky.social
Supported by @NSF TIP APTO, @AFOSR, and @nvidiabot.bsky.social

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2 weeks ago 4 3 1 0
Scale invariance and statistical significance in complex weighted networks Most networks encountered in nature, society, and technology have weighted edges, representing the strength of the interaction or association between their vertices. Randomizing the structure of a net...

Our paper "Scale invariance and statistical significance in complex weighted networks" is out on PRE: If the distribution of edge weights in your null model depends on the weights' unit, you will be in trouble! @filipisilva.bsky.social @skojaku.bsky.social journals.aps.org/pre/abstract...

1 month ago 2 3 0 0

Its very hard to type
, and hard to remember the spelling 🫣

1 month ago 0 0 0 0
The snake that eats its own tail More automation, more babysitting

I created a tool, snaketail, a snakemake wrapper that fixes workflow and restarts itself automatically when failed.

The idea—feeding the tail (error log) to the head (system input) to self-heal—has practical values to create robust automation system!

skojaku.github.io/snaketail.html

1 month ago 5 2 3 0
漸化式を色々な方法で可視化 | 鑑賞して楽しむ漸化式
漸化式を色々な方法で可視化 | 鑑賞して楽しむ漸化式 YouTube video by VISUALIUM 鑑賞する科学

This is a beautiful visualization of recurrence relations and eigenvectors. (It’s Japanese so plz turn on auto translation).

1 month ago 1 0 0 0

I've also seen more and more figures that are apparently generated by generative AIs on preprints, with typos, broken arrows, and inconsistency with the main text body. Found yet another one today 🙃.

2 months ago 0 0 0 0

ppl should stop using ai-generated diagrams. you know i’m not anti-ai but they’re just not good at this yet!

the problem is that diagrams have a very specific purpose: they’re meant to compress understanding into few key bits. ai vomits out poor approximations that aren’t conceptually compressed

2 months ago 305 30 16 9
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Come and join our Discrete Laplacian workshop in Dresden, Germany 🙌!

With Karel Devriendt, Otto Sumray, and Giulio Zucal, we are organising the workshop in MPI-CBG, 22-25 Jun 2026.
Thanks to the support from Heather Harrington's group at CSBD, MPI!

Abstract ddl: 1 Mar 2026

More details follow 🧵

2 months ago 8 5 2 0

My daughter isn’t Markovian but my son is (almost) 🙃

2 months ago 0 0 0 0
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New (competition funded) PhD opportunity with me,
@iaciac.bsky.social and @dralgernon.bsky.social
www.findaphd.com/phds/project...
Higher-order networks and animal communication. Suited to someone keen on network science theory/computational modeling and keen to adapt this to ecology & evolution.

2 months ago 35 41 1 2
The invisible cyborgs Building my parts

Can AI be a good task manager? I tested myself as a weekend project - skojaku.github.io/invisible-cy...

2 months ago 1 0 0 0
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Feed the Beast | Derek Larson AI eats software

Claude code is moving from a coder to a general assistant.

Personally, sending sensitive data to someone's server isn't an option. But w/ ollama "launch" feature, I may do w/ local LLMs. Time for experiment!

(reading while me being fed with a cup of Miso soup)

www.dtlarson.com/feed-the-beast

2 months ago 0 0 0 0

Thanks!

3 months ago 1 0 0 0
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Scientific production in the era of large language models With the production process rapidly evolving, science policy must consider how institutions could evolve

Thrilled to share our new paper in Science @science.org: “Scientific Production in the era of Large Language Models.”

- LLMs boost productivity, especially for non-native speakers.
- Writing complexity is now "decoupled" from scientific quality.
- LLMs help discover more diverse literature.

3 months ago 12 1 2 1

Awesome🥳 Big Congrats!!!

3 months ago 1 0 1 0
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A long-overdue interactive version finally done
(Huge thanks to Google Gemini)
Complex Systems Topic Network: Interactive Visualization
bingdev.binghamton.edu/sayama/compl...

3 months ago 9 4 0 1
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We are looking for a PhD student to work with us on network science methods for biomedicine. The student can be enrolled in any graduate program. #NetworkMedicine #ComplexSystems.

4 months ago 7 6 0 0
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GPT Inference (greedy, top-k, beam search, temperature control).

4 months ago 2 0 0 0

For a thread of community detection, Girvan Newman paper on the modularity, LFR bench, the resolution limit paper, Karrer Newman degree corrected SBMs, Peixoto’s non parametric Bayesian SBMs

4 months ago 2 0 0 0
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word2vec: from the structural linguistic perspective. Written by me. Illustrated by Nano Banana Pro.

4 months ago 2 0 1 0

🧵1/
A bit late to the party, but I want to introduce a pet project of mine—and my first single-author paper! 🎉

It tackles something that has quietly frustrated me for years: how we measure the similarity of two clusterings/community structures.

4 months ago 8 3 1 0
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Nano Banana Pro unbelievably lowers the entry barrier for people interested in creating short Manga. This blog post describes the recipe (in Japanese). I get this Manga version of my lecture note on the position encoding in transformers, **in the first shot** 😮.

note.com/konho/n/na8d...

4 months ago 1 0 0 0

海南鶏飯を一日かけて作ったのだけど、子供は食べないばかりかぐちゃぐちゃにされて心が折れた。10分でできるパスタ出してあげるよ。次から🫠。

4 months ago 0 0 0 0
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I'm looking for a PhD student to join my lab at UAlbany for Fall 2026!

We are data scientists studying the creation, flow, and impact of information. How do scientists collaborate? How does AI shape information access? What drives local innovation?

Want to answer these questions? details below!

5 months ago 7 7 1 0
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🚨 New paper on ArXiv:

“Uncertainty quantification and posterior sampling for network reconstruction”

TL;DR; We present an efficient method to sample the entire ensemble of possible network reconstructions that are compatible with an indirect observation, e.g. a dynamics.

Short thread: 1/N

1 year ago 165 53 10 5
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TLDR: communities are undetectable even if they are because of the variabilities of network topology. We look further into edge weights, showing that a higher variability in edge weights makes communities harder to be detected. Our results inform when to use edge weights and better edge reweighing.

5 months ago 3 0 0 0
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Is #innovation born or made? Why do some places keep innovating while others fall behind? Is innovation the product of cities—or of deeper laws?

Our new paper in npj Complexity explores these questions through the lens of a century of US patent data.🧵👇
nature.com/articles/s44...

5 months ago 26 7 1 3
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Detectability threshold in weighted modular networks We study the necessary condition to detect, by means of spectral modularity optimization, the ground-truth partition in networks generated according to the weighted planted-partition model with two eq...

When are communities detectable in weighted networks? You can find the answer in our latest preprint. Great collaboration with @filipisilva.bsky.social @skojaku.bsky.social arxiv.org/abs/2511.00214

5 months ago 3 2 0 1
GitHub - skojaku/myheliosweb-template Contribute to skojaku/myheliosweb-template development by creating an account on GitHub.

Wanted to create an interactive *public* visualization for networks/embeddings?

I created a minimum GitHub Page template for HeliosWeb visualization. @filipisilva.bsky.social

👉 Demo: shorturl.at/m9CnR
👉 Repo: shorturl.at/HJ2gn
👉 HeliosWeb: shorturl.at/H9bJU

#dataviz #datascience #python

5 months ago 3 1 0 0