Data Analytics Lab

@DataLabBE

Data Analytics Laboratory at VUB: Vrije Universiteit Brussel, Belgium

Brussels, Belgium

data.research.vub.be

Joined September 2017

Onderzoekers over metro 3: 'Amper voordelen bij halve aanleg'

De aanleg van metrolijn 3 zou voor reizigers maar beperkte tijdwinst opleveren, zo blijkt uit data-onderzoek door de VUB. Bij een gedeeltelijke aanleg kan er zelfs sprake zijn van langere reistijden.

Source: bruzz.be

Data Analytics Lab reposted

Rohan Paul

@rohanpaul_ai

Aug 27

The paper shows that simple words in chain of thought text can reliably flag wrong LLM answers. When the model’s reasoning text (the chain of thought) includes words like “guess” or “stuck”, the chance that the final answer is correct goes down a lot, by up to 40%. So put…

rohanpaul_ai's tweet image. The paper shows that simple words in chain of thought text can reliably flag wrong LLM answers.

When the model’s reasoning text (the chain of thought) includes words like “guess” or “stuck”, the chance that the final answer is correct goes down a lot, by up to 40%.

So put…

Data Analytics Lab

@DataLabBE

Aug 26

New paper: Lexical Hints of Accuracy in LLM Reasoning Chains We ask: Can words in LLM's reasoning trace tell us when it’s wrong? - CoT length predicts accuracy on easier tasks - Lexical cues (guess, stuck, hard) predict errors regardless of task difficulty arxiv.org/abs/2508.15842

Data Analytics Lab

@DataLabBE

Apr 23

Data Lab is heading to ICLR 2025! Our PhD students @FlorianoTori and @MelikaMobini will both be presenting a poster on their work. Check out iclr.cc/virtual/2025/p… and iclr.cc/virtual/2025/3…. If you’ll be there too, feel free to reach out — we’d love to connect!

Data Analytics Lab reposted

Ole Peters

@ole_b_peters

Feb 26

1/2 New blog post by @v_arne about the Brussels Experiment. Put quantitatively trained people under time pressure, and force them to behave more intuitively. Result: they behave less like expected-value maximizers and more like long-term growth optimizers, EE-style.

Data Analytics Lab reposted

Arne Vanhoyweghen

@v_arne

Feb 26

Have you ever wondered how time pressure shapes financial decisions? ✅Check out my new blog post, The Brussels Experiment: ergodicityeconomics.com/2025/02/26/the… 📚Full paper: nature.com/articles/s4159…

Data Analytics Lab reposted

Marthe Ballon

@martheballon

Feb 24

LMs are getting really good at reasoning, but mechanisms behind it are poorly understood. In our recent paper, we investigated SOTA models and found that 'Thinking harder ≠ thinking longer'! Joint work with @AndresAlgaba1, @VincentGinis Insights of our research (A thread):

AK

@_akhaliq

Feb 24

The Relationship Between Reasoning and Performance in Large Language Models o3 (mini) Thinks Harder, Not Longer

Data Analytics Lab reposted

Andres Algaba

@AndresAlgaba1

Jan 28

Opiniestuk in @destandaard. Humanity's Last Exam - Het is examentijd. Niet alleen voor AI, maar ook voor ons. standaard.be/cnt/dmf2025012… Met @VincentGinis en Brecht Verbeken. @VUBrussel @FWOVlaanderen

AndresAlgaba1's tweet card. Onderzoekers probeerden vragen te bedenken die AI niet kan beantwoorden. Viel dat even tegen. AI houdt ons een spiegel voor.

Hoe gaan we om met technologie die ons intellectueel voorbijstreeft?

Source: standaard.be

Data Analytics Lab

@DataLabBE

Jan 10

Join our team at @DataLabBE! We're excited to announce a new job-opening: a Postdoctoral Fellow in Computational (Social) Science and AI. Ideal for researchers motivated to innovate and work in a highly interdisciplinary environment. Deadline Jan 19. jobs.vub.be/job/Elsene-Pos…

Data Analytics Lab

@DataLabBE

Dec 23

import math free_time_on_cluster = math.factorial(10)/3 happy_holidays = True if free_time_on_cluster > math.factorial(10)/14 and happy_holidays: print("No-one is using the cluster, submit all your jobs and enjoy the holidays!")