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Mobile & Multimodal

34 notes (primary) · 33 papers · 2 sub-topics
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Multimodal Models

7 notes

Can a single model generate all modalities without external encoders?

Most multimodal systems rely on separate encoders for each modality. This research explores whether training a unified foundation model on discrete tokens across text, image, video, and speech can enable any-to-any generation without those external components.

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Can generating entire videos at once beat keyframe interpolation?

Does synthesizing a video's full temporal duration in a single pass, rather than generating keyframes and filling gaps, produce more globally coherent motion? This explores whether pipeline decomposition fundamentally limits motion consistency.

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Can bounding boxes replace image encoders for document understanding?

Explores whether spatial layout information alone, encoded as bounding boxes, can capture the multimodal signal needed for document understanding without expensive visual encoding. Matters because image encoders add significant computational cost to document processing systems.

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Can we solve modality competition through architectural design?

Does modality competition in multimodal models stem from fundamental training conflicts, or from specific architectural choices? Understanding the root cause could reveal whether the trade-off is solvable.

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Are text-only language models fundamentally limited by abstraction?

Explores whether text's compression of physics, geometry, and causality into symbols creates an irreducible ceiling for language-only AI, and whether multimodal approaches can overcome this structural constraint.

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Can video language models actually understand time?

This research investigates whether video LLMs truly grasp temporal concepts like causality and event progression, or merely recognize spatial content across frames. Understanding this gap matters for video understanding tasks that depend on reasoning about time.

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Why do vision and language scale so differently?

IsoFLOP analysis reveals vision and language follow distinct scaling curves—vision demands far more training data than language at equivalent compute budgets. Understanding this asymmetry matters for designing multimodal architectures that serve both modalities well.

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Mobile and On-Device LLMs

4 notes

Does depth matter more than width for tiny language models?

Explores whether deep-and-thin architectures outperform wide-and-shallow ones at sub-billion scales, and why this might contradict larger-model scaling laws.

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Does recomputing weights cost less than moving them on mobile?

Explores whether mobile hardware's memory bottleneck makes it cheaper to recompute transformer blocks than to fetch their weights twice, and whether this trades accuracy for efficiency.

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What actually limits language models on mobile phones?

Is the shift toward smaller LLMs driven by quality trade-offs, or by hard physical constraints on device memory and battery life? This note examines whether sub-billion models are a practical necessity rather than a compromise.

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Can ternary weights match full precision model performance?

Can models trained natively with only three weight values (−1, 0, 1) achieve the same perplexity and task performance as standard full-precision models? This matters because ternary weights could dramatically reduce computational and energy costs.

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