Portrait of me

Till Speicher

PhD Student

MPI-SWS

About me

I am a final-year PhD student at MPI-SWS, Germany, advised by Krishna Gummadi.
My current research focus is on understanding the properties of representations in deep neural networks. Previously, I have worked on topics related to fairness in algorithmic decision making.
I obtained a Bachelor's degree in Computer Science from Saarland University.
In my free time, I am active as a triathlete.

You can find more information in my CV.

Publications

Understanding the Role of Invariance in Transfer Learning

Till Speicher, Vedant Nanda, Krishna P. Gummadi

TMLR 2024

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Diffused Redundancy in Pre-trained Representations

Vedant Nanda, Till Speicher, John P. Dickerson, Soheil Feizi, Krishna P. Gummadi, Adrian Weller

NeurIPS 2023

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Measuring Representational Robustness of Neural Networks Through Shared Invariances

Vedant Nanda, Till Speicher, Camila Kolling, John P. Dickerson, Krishna P. Gummadi, Adrian Weller

ICML 2022, oral presentation

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A Unified Approach to Quantifying Algorithmic Unfairness: Measuring Individual & Group Unfairness via Inequality Indices

Till Speicher, Hoda Heidari, Nina Grgic-Hlaca, Krishna P. Gummadi, Adish Singla, Adrian Weller, Muhammad Bilal Zafar

KDD 2018

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Potential for Discrimination in Online Targeted Advertising

Till Speicher, Muhammad Ali, Giridhari Venkatadri, Filipe Nunes Ribeiro, George Arvanitakis, Fabrício Benevenuto, Krishna P. Gummadi, Patrick Loiseau, Alan Mislove

FAccT 2018

Paper

Reliable Learning by Subsuming a Trusted Model: Safe Exploration of the Space of Complex Models

Till Speicher, Muhammad Bilal Zafar, Krishna P. Gummadi, Adish Singla, Adrian Weller

Reliable Machine Learning in the Wild - ICML Workshop 2017

Paper

A Generalized Language Model as the Combination of Skipped n-grams and Modified Kneser-Ney Smoothing

Rene Pickhardt, Thomas Gottron, Martin Körner, Paul Georg Wagner, Till Speicher, Steffen Staab

ACL 2024

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Pre-Prints

Towards Reliable Latent Knowledge Estimation in LLMs: In-Context Learning vs. Prompting Based Factual Knowledge Extraction

Qinyuan Wu, Mohammad Aflah Khan, Soumi Das, Vedant Nanda, Bishwamittra Ghosh, Camila Kolling, Till Speicher, Laurent Bindschaedler, Krishna P. Gummadi, Evimaria Terzi

2024

Paper

Pointwise Representational Similarity

Camila Kolling, Till Speicher, Vedant Nanda, Mariya Toneva, Krishna P. Gummadi

2023

Paper

Unifying Model Explainability and Robustness via Machine-Checkable Concepts

Vedant Nanda, Till Speicher, John P. Dickerson, Krishna P. Gummadi, Muhammad Bilal Zafar

2020

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