[ContinualAI Seminars]: "Representational Continuity for Unsupervised Continual Learning"
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Keiland Cooper
Apr 11, 2022, 4:28:02 PM4/11/22
to Continual Learning & AI News
Hi All,
This Thursday 14-04-2022, 17.30 PM CEST, for the ContinualAI Seminar, Divyam Madaan (New York University) will present the paper:
Title: “Representational Continuity for Unsupervised Continual Learning”
Abstract: Continual learning (CL) aims to learn a sequence of tasks without forgetting the previously acquired knowledge. However, recent CL advances are restricted to supervised continual learning (SCL) scenarios. Consequently, they are not scalable to real-world applications where the data distribution is often biased and unannotated. In this work, we focus on unsupervised continual learning (UCL), where we learn the feature representations on an unlabelled sequence of tasks and show that reliance on annotated data is not necessary for continual learning. We conduct a systematic study analyzing the learned feature representations and show that unsupervised visual representations are surprisingly more robust to catastrophic forgetting, consistently achieve better performance, and generalize better to out-of-distribution tasks than SCL. Furthermore, we find that UCL achieves a smoother loss landscape through qualitative analysis of the learned representations and learns meaningful feature representations. Additionally, we propose Lifelong Unsupervised Mixup (Lump), a simple yet effective technique that interpolates between the current task and previous tasks' instances to alleviate catastrophic forgetting for unsupervised representations.
---------------
- YouTube link: [click here]
- Microsoft Teams: [ click here]
- YouTube recordings of the previous sessions: https://www.youtube.com/c/ContinualAI
---------------
Feel free to share this email to anyone interested and invite them to subscribe this mailing-list here: https://groups.google.com/g/continualai
Please also contact me if you want to speak at one of the next sessions!
Looking forward to seeing you all there!
All the best,
Keiland Cooper
University of California
ContinualAI Co-founder
http://kwcooper.xyz
This Thursday 14-04-2022, 17.30 PM CEST, for the ContinualAI Seminar, Divyam Madaan (New York University) will present the paper:
Title: “Representational Continuity for Unsupervised Continual Learning”
Abstract: Continual learning (CL) aims to learn a sequence of tasks without forgetting the previously acquired knowledge. However, recent CL advances are restricted to supervised continual learning (SCL) scenarios. Consequently, they are not scalable to real-world applications where the data distribution is often biased and unannotated. In this work, we focus on unsupervised continual learning (UCL), where we learn the feature representations on an unlabelled sequence of tasks and show that reliance on annotated data is not necessary for continual learning. We conduct a systematic study analyzing the learned feature representations and show that unsupervised visual representations are surprisingly more robust to catastrophic forgetting, consistently achieve better performance, and generalize better to out-of-distribution tasks than SCL. Furthermore, we find that UCL achieves a smoother loss landscape through qualitative analysis of the learned representations and learns meaningful feature representations. Additionally, we propose Lifelong Unsupervised Mixup (Lump), a simple yet effective technique that interpolates between the current task and previous tasks' instances to alleviate catastrophic forgetting for unsupervised representations.
---------------
- YouTube link: [click here]
- Microsoft Teams: [ click here]
- YouTube recordings of the previous sessions: https://www.youtube.com/c/ContinualAI
---------------
Feel free to share this email to anyone interested and invite them to subscribe this mailing-list here: https://groups.google.com/g/continualai
Please also contact me if you want to speak at one of the next sessions!
Looking forward to seeing you all there!
All the best,
Keiland Cooper
University of California
ContinualAI Co-founder
http://kwcooper.xyz
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