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Aditya Sharma

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#artificial intelligence Preprint Sep 2026

One Geometry, Different Outcomes: Readout-Dependent Effects of the Modality Gap in Vision-Language Models

Contrastive vision-language models learn shared embedding spaces by aligning matched image-text pairs, yet their representations remain separated by a modality gap. Prior work reports divergent effects of modifying this gap: reducing it can improve zero-shot classification and cross-modal alignment, whereas removing ga...

Aditya Sharma, Divya Saxena · 0 citations
Jul 2026

When Prompts Ignore Structure: Graph-Based Attribute Reasoning for Calibrated VLMs

This work proposes ARGTCA, which represents (class, attribute) pairs as nodes in a Symbolic Attribute Graph and trains a Graph Attention Network (GAT) using contrastive objectives to produce structurally informed embeddings that capture inter-attribute dependencies.

Tanay Sodha, Aditya Sharma, Ramya Hebbalaguppe et al. · 0 citations

G-Loss: Graph-Guided Fine-Tuning of Language Models

G-Loss is presented, a graph-guided loss function that incorporates semi-supervised label propagation to use structural relationships within the embedding manifold to build a document-similarity graph that captures global semantic relationships.

Aditya Sharma, Vinti Agarwal, Rajesh Kumar · 0 citations

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