DeCEMBERT: Learning from Noisy Instructional Videos via Dense Captions and Entropy Minimization (2021.naacl-main)
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| Challenge: | Existing methods to train models on unlabeled web videos are noisy and temporally misaligned . authors propose a method that adds captions and constrained attention loss to improve performance . |
| Approach: | They propose a method that adds captions from video frames as auxiliary text input to provide visual cues for learning better video and language associations. |
| Outcome: | The proposed method outperforms state-of-the-art methods on video-and-language tasks . it adds captions and constrained attention loss to improve model performance . |
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Multimodal Pretraining for Dense Video Captioning (2020.aacl-main)
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| Challenge: | a billion hours of videos are being watched on YouTube every day . videos are difficult to skim through, making it harder to quickly target the relevant part(s) of a video. |
| Approach: | They propose to use a video timeline tag dataset to generate time-stamped annotations for videos . they propose to pretrain and finetune captioning models using YouCook2 and ViTT . |
| Outcome: | The proposed model generalizes well and is robust over a wide variety of instructional videos. |
Task-Specific Information Decomposition for End-to-End Dense Video Captioning (2025.acl-long)
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| Challenge: | Existing methods for label assignment fail to ensure relevance of localization information to descriptions. |
| Approach: | They propose a decomposed dense video captioning framework that derives localization and captioning queries from event queries, enabling task-specific representations while maintaining inter-task collaboration. |
| Outcome: | Experiments on YouCook2 and ActivityNet Captions show that the proposed framework achieves state-of-the-art performance. |
End-to-end Dense Video Captioning as Sequence Generation (2022.coling-1)
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| Challenge: | Existing methods for dense video captioning use a two-stage generative process . but, more complex tasks are not able to fully utilize this powerful paradigm . |
| Approach: | They propose to model two subtasks of dense video captioning as one sequence generation task and predict the events and the corresponding descriptions. |
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Dense Procedure Captioning in Narrated Instructional Videos (P19-1)
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| Challenge: | Existing models for video dense captioning learn video segments and generate captions without considering transcripts. |
| Approach: | They propose a model to generate procedure captions from narrated instructional videos . they extract procedures by a cross-modality module and generate captions by encoding video frames and transcripts within each extracted procedure. |
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Sali4Vid: Saliency-Aware Video Reweighting and Adaptive Caption Retrieval for Dense Video Captioning (2025.emnlp-main)
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| Challenge: | Recent work proposes end-to-end models but suffer from limitations . prior work focused on generating captions from long video streams . |
| Approach: | They propose a saliency-aware framework that localizes events and generates captions for each event. |
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Learning a Grammar Inducer from Massive Uncurated Instructional Videos (2022.emnlp-main)
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| Challenge: | aims to find more accurate syntactic grammars for accompanying text using video data. |
| Approach: | They build a video-aided grammar induction model that can learn video-span correlation without manual features. |
| Outcome: | The proposed model can learn video-span correlation without manual features adopted by previous systems. |
Retrieval-augmented Video Encoding for Instructional Captioning (2023.findings-acl)
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| Challenge: | Instructional videos provide a detailed multimodal context of each procedure in instruction. key-object degeneracy is a problem for machine systems, causing incorrect captions. |
| Approach: | They propose a retrieval-based framework to augment the model representations in the presence of key-object degeneracy. |
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ELIOT: Zero-Shot Video-Text Retrieval through Relevance-Boosted Captioning and Structural Information Extraction (2025.naacl-srw)
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| Challenge: | Recent advances in video-text retrieval (VTR) have relied on supervised learning and fine-tuning. |
| Approach: | They propose a zero-shot video-text retrieval framework that leverages off-the-shelf captioners, large language models, and text retrieval methods without additional training or annotated data. |
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Grounding language acquisition by training semantic parsers using captioned videos (D18-1)
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| Challenge: | a new method for parsing sentences using captioned videos is being developed . we use video clips to ground the semantics of language, but without annotations . |
| Approach: | They develop a semantic parser that is trained in a grounded setting using captioned videos . they use a corpus of sentences paired with videos without other annotations to train it . |
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Sparse-to-Dense: A Free Lunch for Lossless Acceleration of Video Understanding in LLMs (2025.acl-short)
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| Challenge: | Recent advances in Video Large Language Models (Video-LLMs) have achieved exceptional performance on tasks like video question answering and captioning. |
| Approach: | They propose a decoding strategy that leverages sparse top-K attention and dense full attention to accelerate Video-LLMs without loss. |
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