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Ramtin Pedarsani

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#machine learning Preprint Sep 2026

Kernel-Based Steering of CLIP with Vision-Language Model Preferences

ASK, a kernel-based steering method that learns from elicited pairwise judgments without accessing teacher embeddings or collecting new human similarity annotations, is introduced, a kernel-based steering method that learns from elicited pairwise judgments without accessing teacher embeddings or collecting new human si...

Sajjad Ghiasvand, Haniyeh Ehsani Oskouie, Sina Mansouri et al. · 0 citations
Preprint Sep 2026

Low-Rank Prompt Learning for Vision-Language Models with Fixed-Token Bases

Across seven few-shot benchmarks and two CLIP backbones, low-rank prompts match or improve dense CoOp at far fewer parameters, with the clearest gains on low-shot base-to-new generalization.

Tanvir Muntakim Tonoy, Sajjad Ghiasvand, Mahnoosh Alizadeh et al. · 0 citations
Preprint Aug 2026

ZOMP: Zeroth-Order Multi-Modal Prompt Tuning for Vision-Language Models

This work proposes ZOMP (Zeroth-Order Multimodal Prompt tuning), a query-efficient, fully forward-only method that tunes deep prompts in both the vision and text branches of a frozen CLIP model using simultaneous perturbation stochastic approximation.

Sajjad Ghiasvand, Yifan Yang, Mahnoosh Alizadeh et al. · 1 citation

Can MLLMs Critique Like Humans? Evaluating Open-Ended Aesthetic Reasoning in Multimodal Large Language Models

It is argued that reference-based similarity rewards a fluent, comprehensive critique style rather than the selectivity and specificity of human critique, and that reference-based similarity gives a misleading picture.

Sajjad Ghiasvand, Maryam Amirizaniani, Haniyeh Ehsani Oskouie et al. · 1 citation

REALM: Reliable Expertise-Aware Language Model Fine-Tuning from Noisy Annotations

REALM is proposed, which jointly learns the model parameters and a scalar expertise value for each annotator, entirely unsupervised and requiring nothing beyond annotator identity, and extends to multiple tasks via a learned expertise matrix.

Sajjad Ghiasvand, M. Beliaev, Mahnoosh Alizadeh et al. · 0 citations

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