Pinned toot is your home if you know:

\textit{idf} = - \log \frac{n_t}{N}

and... everyone else!

Pinned toot

Dear all,

For now, I will keep the site closed for registrations; but everyone can independently invite people to join using the following link to generate an invite:

If you know someone who wants to join this instance, then please do give them an invite!

Consider the instance open for those who know anyone on

"Sense of community" and an initial seed of some 40 IR researchers should be enough to keep those spammers out of here and still grow the club!

Pinned toot

Computer scientist 👨‍🏫 with main focus on Information Retrieval 📄

Also interested in Data Science / Big Data 💾

In the previous millennium :mastodon: a PhD on Multimedia Databases 🎥 (Yes that was a respectable research topic once upon a time pre-birdsite!)

is my academic home.

Entrepreneur: co-founder of ( admin.

Loves indie music: follow me at @arjenpdevries if you are interested in gigs, events, etc.

Pinned toot
Pinned toot

Inaugural toots on using a photo of lunch with Nick Belkin after attending the now Dr. Hugo Huurdeman defense.

See also:

What the FLoC?!
Don't panic!

Here’s how not to opt-in to Google’s FLoC:

Don’t load untrusted third-party content that might get classified as an ad (only applies during the origin trial)

Don’t call document.interestCohort(), and don’t load third-party scripts that might call it either.

More info:

Misinformation about Permissions Policy and FLoC - Seirdy

Goede column Sheila Sitalsing over fraude obsessie, SyRi, hardleers Rotterdam. "Hoedt u voor regenten met een computer."

Goede grap:

(Context: Allekabels gehackt, brengen verklaring naar buiten dat ze nu niet meer gekraakt kunnen worden vanwege hun datakluis systeem :-))

Today is great because...
a.'s a Friday
b. ...we have new servers 🙌

Related, very exciting: a full Jupyter notebook including #Python and Numpy and math libs running *entirely* in browser—no server.

They compiled the Python runtime plus and Numpy and FORTRAN libs to #WebAssembly. It all runs in your browser.

This is kind of the opposite route from Gitpod, whom you go to to reduce the burden of server config and management. With things like #JupyterLite, you minimize build/config problems *and* keep your computers.

📝New blog post 🎉

Is WebAssembly magic performance pixie dust✨? Can you replace JavaScript with Wasm and things get faster?

➡️ JS to AssemblyScript
➡️ Benchmarking & Profiling
➡️ Debugging the runtime
➡️ Comparing file size
➡️ also feat Rust & C++


Niels Niessen in de Volkskrant:
"De redenering van veel universiteiten tijdens de eerste lockdown was: het onderwijs en tentamens moeten zo normaal mogelijk doorgang vinden. De redenering had ook kunnen zijn: als universiteit willen we allereerst een sociaal veilige omgeving creëren. Studenten thuis surveilleren hoort daar niet bij."

RT Thanks for IPFS & OpenZIM teams' hard work! If you are a Chinese user, There is a simple tutorial to help you begin to use Wikipedia on IPFS now.


CfP: SIGIR 2021 Workshop on Simulation for Information Retrieval Evaluation

Did u know the glyph failure character is known as a tofu □

And occasionally the phenomenon in which it happens is referred to as tofu-baké

Web Monetization is a JavaScript browser API that allows the creation of a payment stream from the user agent to the website.

This proposed W3C standard is now live on Mojeek; you can read more on our blog:

Profiles in Science - Inside the C.I.A., She Became a Spy for Planet Earth

Portrait of Linda Zall, who worked at the CIA and helped make a lot of environmental observations available for #EarthScience. From early spy satellites giving information on sea ice, snow cover, glaciers and (lake) shorelines, to ocean floor observations from the Navy.

After her retirement her group, called Medea, was closed down in 2015 and will hopefully be revived again by Biden.


Linux folks, explained here 👇 how to set up an offline Wikipedia web server.


Show more

The "unofficial" Information Retrieval Mastodon Instance.

Goal: Make a viable and valuable social space for anyone working in Information Retrieval and related scientific research.

Everyone welcome but expect some level of geekiness on the instance and federated timelines.