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Michael Wray Profile
Michael Wray

@mwray0

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300
Following
662
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Statuses
141

Interested in (Egocentric) Video Understanding and Language. Lecturer/Assistant Professor at the University of Bristol.

Bristol
Joined November 2012
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@mwray0
Michael Wray
15 days
Finally, Sam will be giving a presentation of the work at @TheBMVA Symposium on "Multimodal Large Models: Bridging Vision, Language, and Beyond" next week! Thanks also to IsambardAI for providing computational resources for the project.
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@mwray0
Michael Wray
15 days
For more information and results, go to Sam's website: https://t.co/20DyTysDrZ We include code and test sets for reproducibility and the ability to evaluate your own method's attribution scores across the different modalities! Work done by Sam Pollard as first author.
sjpollard.github.io
Sam Pollard, Michael Wray arXiv
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@mwray0
Michael Wray
15 days
We evaluate 6 methods (both new and old) across 4 common and new video question answering benchmarks. It's not all bad news however, by including more than 5 answers, we find that the model's pay more attention to both the video frames and the question (PFC_v/PFC_q below)!
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@mwray0
Michael Wray
15 days
We extend Shapley Values across Video, Question, and Answer modalities to calculate new metrics for 'per modality' and 'per feature' metrics. Our results show that the answer/question modalities dominate over the video modality by orders of magnitude!
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@mwray0
Michael Wray
15 days
A Video is Not Worth a Thousand Words! Our new Paper on ArXiv explores how VLMs deal with different modalities for Video Question Answering using Shapley Values. Read the paper: https://t.co/HVJXQNtsyd Website: https://t.co/tl6VogIDL5
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@WayHomeLi
Wei-Hong Li
20 days
Fantastic two days with François visiting our MaVi group! Inspiring discussions, engaging talks, and great exchanges on the latest research. Big congrats to Dr. Kevin on a successful viva and to @mwray0 on a career milestone!
@dimadamen
Dima Damen
21 days
Many thanks 2 Francois Bremond (@inria_sophia) for a 2-day #Bristol visit @BristolUni #MaVi (Machine Learning &Computer Vision) research group hosted by @WayHomeLi. Great presentation incl. #CVPR2025 & #ICCV2025 papers from Francois's group, insights and future directions. 1/2
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@dimadamen
Dima Damen
4 months
Many thanks @PascalMettes @UvA_IvI for visiting us @BristolUni to examine (now Dr) Adriano Fragomeni (supervised by myself and @mwray0) and give a great talk on hyperbolic deep learning. Enjoyed your visit
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@anfurnari
Antonino Furnari
5 months
@SiyuTang3 on "Towards an egocentric multimodal foundation model" now at the #EGOVIS workshop at #CVPR2025!
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@mwray0
Michael Wray
5 months
Code can be found on Github: https://t.co/xVxRyb0nqv Work by Sam Pollard. Want More Details? We both will be at CVPR 2025 next week to present the work and answer Qs!
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github.com
Code for Video, How Do Your Tokens Merge? Contribute to sjpollard/video-how-do-your-tokens-merge development by creating an account on GitHub.
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@mwray0
Michael Wray
5 months
By evaluating across Kinetics, Something-Something, and EPIC-Kitchens-100, we investigate how action granularity and first/third person viewpoints affect the token merging process and performance.
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@mwray0
Michael Wray
5 months
We evaluate different token merging strategies across four different models (see paper for everything!) showcasing how a 2x speedup can be achieved with little to no drop in accuracy!
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@mwray0
Michael Wray
5 months
📢 Our paper "Video, How Do Your Tokens Merge?" is now on ArXiv, to be presented at eLVM @CVPR 2025! We explore Training-Free token merging for video understanding models across datasets with differing granularities. https://t.co/ZW68MkFtmB https://t.co/fQLLHGzKsw
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@ICCVConference
#ICCV2025
7 months
⏳Only 1 day left to submit your reviews! ⚠️Late or careless reviews won’t be taken lightly — authors of such reviews risk having their own submissions desk rejected. Please be fair and responsible!🙂
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@mwray0
Michael Wray
8 months
Thanks @hubertshum for visiting us today at Bristol and giving a great talk as part of the #MaVi seminar series!
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@geleonti
Georgios Leontidis
8 months
BMVA Computer Vision School 2025 Aberdeen - Registration @TheBMVA @CVPRConf @eccvconf. We have a great lineup of world-leading scientists who will deliver 16 lectures over 5 days. Also poster competition, school dinner, social event etc.! 👇 Registration:
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@dimadamen
Dima Damen
9 months
Attending @wacv_official #WACV2025 today? This morning's poster session 3 will include our paper: "Moment of Untruth", Check Poster 70 and talk to Kevin who will be there to tell you m ore or answer any questions,
@mwray0
Michael Wray
9 months
📢 Our @wacv_official #WACV2025 paper: Moment of Untruth - Dealing With Negative Queries in Video Moment Retrieval, is now on ArXiv. We explore false positives of Video Moment Retrieval models when given negative queries. https://t.co/3nE4gisGVb https://t.co/YyJI8VIGM9
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@mwray0
Michael Wray
9 months
Code and dataset can be found on github: https://t.co/fAnVDpHjwm Work by Kevin Flanagan @BristolUni @Bristol_AI_CDT With @dimadamen Any Qs? Kevin will be at WACV to present the work!
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github.com
Contribute to keflanagan/MomentofUntruth development by creating an account on GitHub.
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@mwray0
Michael Wray
9 months
Finally, we propose a simple model which can be applied on any VMR method to successfully separate positive queries that exist in the video from negative queries that don't!
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@mwray0
Michael Wray
9 months
We showcase this is an issue for current video moment retrieval models providing two new benchmarks for negative-aware video moment retrieval through both In-Domain and Out-of-Domain negatives.
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@mwray0
Michael Wray
9 months
📢 Our @wacv_official #WACV2025 paper: Moment of Untruth - Dealing With Negative Queries in Video Moment Retrieval, is now on ArXiv. We explore false positives of Video Moment Retrieval models when given negative queries. https://t.co/3nE4gisGVb https://t.co/YyJI8VIGM9
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