← Search

Stefan Scherer

7 accepted papers

2026

Sparse CLIP: Co-Optimizing Interpretability and Performance in Contrastive Learning

ICLR 2026poster

Contrastive Language-Image Pre-training (CLIP) has become a cornerstone in vision-language representation learning, powering diverse downstream tasks and serving as the default vision backbone in multimodal large language models (MLLMs). Despite its success, CLIP's dense and opaque latent representa…

Cited by 0SourceScholar
2024

Accelerating Look-ahead in Bayesian Optimization: Multilevel Monte Carlo is All you Need

ICML 2024poster

We leverage multilevel Monte Carlo (MLMC) to improve the performance of multi-step look- ahead Bayesian optimization (BO) methods that involve nested expectations and maximizations. Often these expectations must be computed by Monte Carlo (MC). The complexity rate of naive MC degrades for nested ope…

2023

Improving Selective Visual Question Answering by Learning From Your Peers

CVPR 2023poster

Despite advances in Visual Question Answering (VQA), the ability of models to assess their own correctness remains underexplored. Recent work has shown that VQA models, out-of-the-box, can have difficulties abstaining from answering when they are wrong. The option to abstain, also called Selective P…

2017

Learning representations of emotional speech with deep convolutional generative adversarial networks

ICASSP 2017accepted

Automatically assessing emotional valence in human speech has historically been a difficult task for machine learning algorithms. The subtle changes in the voice of the speaker that are indicative of positive or negative emotional states are often “overshadowed” by voice characteristics relating to…

Cited by 0SourceScholar
2015

Acoustic and para-verbal indicators of persuasiveness in social multimedia

ICASSP 2015accepted

Persuasive communication and interaction play an important and pervasive role in many aspects of our lives. With the rapid growth of social multimedia websites such as YouTube, it has become more important and useful to understand persuasiveness in the context of online social multimedia content. In…

Cited by 0SourceScholar
2015

Reduced vowel space is a robust indicator of psychological distress: A cross-corpus analysis

ICASSP 2015accepted

Reduced frequency range in vowel production is a well documented speech characteristic of individuals' with psychological and neurological disorders. Depression is known to influence motor control and in particular speech production. The assessment and documentation of reduced vowel space and associ…

Cited by 0SourceScholar