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 ๐Ÿ‘จโ€๐Ÿซ with main focus on Information Retrieval ๐Ÿ“„

Also interested in Data Science / Big Data ๐Ÿ’พ

In the previous millennium :mastodon: a PhD on Multimedia Databases ๐ŸŽฅ (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:

#2178 "Expiration Date High Score" 

Emma Gerritse won the best poster of FDIA, nice, congrats Emma!!

There we go! A light themed single column version by deselecting "advanced interface". Neat!

With a little recursion in the screenshot of typing this toot - happy holidays to all!

Testing... \( \LaTeX still works? \)

And, we're back!

v2.9.2, so there should be a single column UI version for new users!

D'r op en d'r over: we gaan weer even uit de lucht voor v2.9.2 (of met beetje pech wordt t v2.9.1 :grin:)

Turns out @arjen held on to a long lost poster, of the NWO free competition project CIRQUID that we ran together in 2002. The poster presents an algebra for ranked search queries on XML database. Now proudly exhibited in my office.

And we're back up, on v2.9.0 for now (going in one step to v2.9.2 turned out to cause errors, so leave it at this point for now).

We go online for not too long, to update the server!

Donna Harman's "Information Retrieval: The early years" can be downloaded for free until 17 July.

Leuk presentje van Best Kept Secret.

BKS voor mij met Le Guess Who toch elk jaar weer de beste muziek geprogrammeerd - al doet Valkhof heel goed mee in 2019, ook geweldige line-up :-)

Oh, mocht je er vrijdag wel nog zijn (ik niet) ga dan naar Mozes (NL beste band!!!) en naar Fontaines DC

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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.