๐น Job alert: Multiple PhD and Postdoc Positions in Multimodal Learning, Foundation Models and Agentic Systems at ELLIS Institute Finland and Tampere University
๐ Helsinki & Tampere ๐ซ๐ฎ
โฐ 31 December
๐ https://t.co/SU05VtEw5G
We're hiring! ๐ฃ๐ต๐ & ๐ฃ๐ผ๐๐๐ฑ๐ผ๐ฐ ๐ฝ๐ผ๐๐ถ๐๐ถ๐ผ๐ป๐ in multimodal learning, foundation models and agentic systems.
I will be joining the ELLIS Institute Finland and Tampere University as a PI and TTAP! I'm now recruiting PhD students and postdocs to join my research group.
Core research areas
โข Multimodal Learning and Generative AI
โข Reliable and Trustworthy Machine Learning
โข Generalization, Adaptation, and Continual Learning of Foundation Models and Agentic Systems
โข Applications in Robotics, Healthcare, Industrial Monitoring, and Beyond
Our Multimodal Intelligence Lab focuses on multimodal learning, generative AI, and vision-language models, with a specific emphasis on how foundation models and agentic systems can safely adapt and generalize to new environments.
Happy to share that our survey paper on Multimodal Adaptation and Generalization has been accepted by ๐๐๐๐๐!
Advances in multimodal adaptation and generalization: From traditional approaches to foundation models
Paper: https://t.co/ht8tPHST4s
Code: https://t.co/G7oYjRy8cF
We review state-of-the-art methods, benchmarks, and applications across classification, segmentation, OOD detection, and more. Finally, we highlight open challenges and future research directions.
๐ New Survey Paper Alert! ๐ท
Excited to share our latest work: "Adapting Vision-Language Models Without Labels: A Comprehensive Survey"
https://t.co/0t5rFhNpZd
https://t.co/RoCLfzPVD9
In this survey, we introduce the first taxonomy of unsupervised VLM adaptation based on the availability of unlabeled visual data:
1๏ธโฃ Data-Free Transfer
2๏ธโฃ Unsupervised Domain Transfer
3๏ธโฃ Episodic Test-Time Adaptation
4๏ธโฃ Online Test-Time Adaptation
Vision-Language Models, such as CLIP, have demonstrated impressive zero-shot capabilities; however, in real-world deployments, their performance can decline without adaptation. Gathering labeled data is costly, so unsupervised adaptation has emerged as a powerful alternative.
๐ ๐ง๐ต๐ฟ๐ถ๐น๐น๐ฒ๐ฑ ๐๐ผ ๐ฎ๐ป๐ป๐ผ๐๐ป๐ฐ๐ฒ ๐๐ฃ๐จ was ๐ฎ๐ฐ๐ฐ๐ฒ๐ฝ๐๐ฒ๐ฑ ๐ฎ๐ ๐ฎ ๐ฆ๐ฝ๐ผ๐๐น๐ถ๐ด๐ต๐ ๐ฎ๐ ๐๐ฉ๐ฃ๐ฅ ๐ฎ๐ฌ๐ฎ๐ฑ! ๐โจ
๐ ๐๐๐ป๐ฎ๐บ๐ถ๐ฐ ๐ฃ๐ฟ๐ผ๐๐ผ๐๐๐ฝ๐ฒ ๐จ๐ฝ๐ฑ๐ฎ๐๐ถ๐ป๐ด (๐๐ฃ๐จ): A Breakthrough for Multimodal ๐ข๐๐-๐ผ๐ณ-๐๐ถ๐๐๐ฟ๐ถ๐ฏ๐๐๐ถ๐ผ๐ป ๐๐ฒ๐๐ฒ๐ฐ๐๐ถ๐ผ๐ป (๐ข๐ข๐). Robust AI must identify unfamiliar inputs to avoid costly mistakesโbut how do we tackle multimodal inputs like video, optical flow, and audio? ๐ค๐ฌ๐ง
Our solution, DPU, dynamically updates class prototypes to capture intra-class variations, significantly boosting OOD detection performance. ๐ฆ๐
๐ฏ ๐๐ฒ๐ ๐๐ถ๐ด๐ต๐น๐ถ๐ด๐ต๐๐:
โข ๐ก First to reveal and tackle ๐ช๐ฏ๐ต๐ณ๐ขโ๐ค๐ญ๐ข๐ด๐ด ๐ท๐ข๐ณ๐ช๐ข๐ฃ๐ช๐ญ๐ช๐ต๐บ challenges in multimodal OOD detection.
โข โ๏ธ ๐๐ญ๐ถ๐จ-๐ข๐ฏ๐ฅ-๐ฑ๐ญ๐ข๐บ, ๐ฎ๐ฐ๐ฅ๐ฆ๐ญ-๐ข๐จ๐ฏ๐ฐ๐ด๐ต๐ช๐ค framework compatible with diverse OOD models.
โข ๐ Achieves state-of-the-art results, improving Far-OOD detection performance by up to 80%!
๐ Big thanks to my fantastic collaborators: Li Li, Huixian Gong, Hao Dong, Tiankai Yang, Yue Zhao, from University of Southern California and ETH Zรผrich.
๐ Read the full paper: https://t.co/4BQxs4k3rl
๐ ๏ธ Code Available: https://t.co/OjlYyD5MVI
๐๐ผ๐ผ๐ธ๐ถ๐ป๐ด ๐ณ๐ผ๐ฟ๐๐ฎ๐ฟ๐ฑ ๐๐ผ ๐ฑ๐ถ๐๐ฐ๐๐๐๐ถ๐ผ๐ป๐ ๐ฎ๐ ๐๐ฉ๐ฃ๐ฅ ๐ฎ๐ฌ๐ฎ๐ฑ! ๐๐ฒ๐'๐ ๐ฝ๐๐๐ต ๐๐ต๐ฒ ๐ฏ๐ผ๐๐ป๐ฑ๐ฎ๐ฟ๐ถ๐ฒ๐ ๐ผ๐ณ ๐บ๐๐น๐๐ถ๐บ๐ผ๐ฑ๐ฎ๐น ๐๐ ๐ณ๐๐ฟ๐๐ต๐ฒ๐ฟ ๐๐ผ๐ด๐ฒ๐๐ต๐ฒ๐ฟ! ๐ฌโจ
These components enhance the modelโs ability to distinguish unknown class samples during online adaptation by amplifying the entropy difference between known and unknown samples.
To leverage this, we propose two key components: Unknown-aware Adaptive Entropy Optimization (UAE) and Adaptive Modality Prediction Discrepancy Optimization (AMP).
We introduce an Agree-to-Disagree (A2D) training algorithm, inspired by the Modality Prediction Discrepancy phenomenon. We also introduce a new outlier synthesis algorithm NP-Mix that explores broader feature spaces and complements A2D to strengthen OOD detection performance.