Artemis Panagopoulou✓

@artemispng

AI Research @SFResearch

303 Following80 Followers29 Posts
  1. Artemis Panagopoulou✓@artemispng
    Artemis Panagopoulou
    RT @bryanlics: In a globalized world, every event has ripple effects. When LLMs turn to the open web, how do they reflect state media? We release the WorldStateMedia dataset: 118M articles from 136 countries in 114 languages, and study their prevalence, narratives, and impact on LLMs. 1/6🧵
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  2. Artemis Panagopoulou✓@artemispng
    I am happy to share that our paper "Contra4: Evaluating Contrastive Cross-Modal Reasoning in Audio, Video, Image, and 3D" has been accepted to #EMNLP2025! 🎉
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  3. Artemis Panagopoulou✓@artemispng
    Posts @artemispng
    🔹 What we found: - Even state-of-the-art models struggle on this task, with the best performing model achieving 56% accuracy. - Increasing sample modalities leads to a deterioration in performance across all tested models.
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  4. Artemis Panagopoulou✓@artemispng
    Posts @artemispng
    In this work, we introduce Contra4, the first large-scale benchmark designed to test a fundamental but underexplored skill in multimodal AI: 👉 Can models contrastively reason across multiple modalities and identify which signal best answers a natural language query?
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  5. Artemis Panagopoulou✓@artemispng
    Posts @artemispng
    Learn More: 📄 Paper: 🌐 Project Page:
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  6. Artemis Panagopoulou✓@artemispng
    Artemis Panagopoulou
    RT @SFResearch: @emnlpmeeting / #EMNLP2025 Accepted Paper: Contra4: Evaluating Contrastive Cross-Modal Reasoning in Audio, Video, Image, and 3D 🔍 📝 Paper: This work introduces the first benchmark for contrastive reasoning across four modalities simultaneously. When presented with audio, video, image, and 3D inputs, models must identify which best answers a natural language query. Key contributions: ➡️ 174k training + 2.3k manually verified test samples ➡️ Mixture-of-Models Round-Trip-Consistency filtering for quality ➡️ Comprehensive SOTA model evaluation Reality Check: Even top models achieve only 56% accuracy overall and 42% on four-modality tasks, revealing a fundamental gap in cross-modal understanding that fine-tuning alone can't bridge. 👥 Authors: Artemis Panagopoulou @artemispng, Le Xue @Le_Xue01, Honglu Zhou @zhou_honglu, Silvio Savarese @silviocinguetta, Ran Xu @stanleyran, Caiming Xiong @CaimingXiong, Chris Callison-Burch, Mark Yatskar @yatskar, Juan Carlos Niebles @jcniebles #FutureOfAI #EnterpriseAI #MultimodalAI #CrossModalReasoning #Benchmarks #FutureOfAI
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  7. Artemis Panagopoulou✓@artemispng
    Artemis Panagopoulou
    RT @realliyifei: How well can LLMs & deep research systems synthesize long-form answers to *thousands of research queries across diverse domains*? Excited to announce 🎓📖 ResearchQA: a large-scale benchmark to evaluate long-form scholarly question answering at scale across 75 fields, using queries 💬and rubrics📋that are mined from survey articles 📚! Website: Paper: Dataset: Code:
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  8. Artemis Panagopoulou✓@artemispng
    Artemis Panagopoulou
    RT @allen_ai: LLMs power research, decision‑making, and exploration—but most benchmarks don’t test how well they stitch together evidence across dozens (or hundreds) of sources. Meet MoNaCo, our new eval for question-answering cross‑source reasoning. 👇
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  9. Artemis Panagopoulou✓@artemispng
    Come learn about our #CVPR2025 work! Poster 346!
    Artemis Panagopoulou @artemispng
    🚨 Are visual programs actually reasoning correctly? Spoiler: 40% of the time, they get the right answer for the wrong reason. Come check out our #CVPR2025 poster (#346) tomorrow — Sunday, June 15th from 10:30am–12:30pm CDT!
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  10. Artemis Panagopoulou✓@artemispng
    🚨 Are visual programs actually reasoning correctly? Spoiler: 40% of the time, they get the right answer for the wrong reason. Come check out our #CVPR2025 poster (#346) tomorrow — Sunday, June 15th from 10:30am–12:30pm CDT!
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  11. Artemis Panagopoulou✓@artemispng
    Take a look at @jcniebles blog post about our upcoming @CVPR #CVPR2025 paper! The blog post highlights the key contribution of our work on improving visual program quality with automatically generated test cases!👇
    Juan Carlos Niebles @jcniebles
    New blog post: "Are your Visual Programs Right for the Wrong Reasons?" 🤔 Dive into the motivation behind our upcoming @CVPR #CVPR2025 paper! 📰 Blog: ➡️ Project: 📄 Paper: w/ @artemispng & @zhou_honglu
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  12. Artemis Panagopoulou✓@artemispng
    Artemis Panagopoulou
    RT @jcniebles: New blog post: "Are your Visual Programs Right for the Wrong Reasons?" 🤔 Dive into the motivation behind our upcoming @CVPR #CVPR2025 paper! 📰 Blog: ➡️ Project: 📄 Paper: w/ @artemispng & @zhou_honglu
    Salesforce AI Research @SFResearch
    🎉Just Announced: "ViUniT: Visual Unit Tests for More Robust Visual Programming" has been accepted at #CVPR2025! Paper Link: Project Page: Researcher’s walk-through 👇 In collaboration with @UPenn, we introduce ViUniT, a framework that enhances the reliability of visual programs by automatically generating unit tests by leveraging #LLMs and #DiffusionModels. Our approach: 📊 Boosts model performance by 11.4% and outperforms gpt-4o-mini by 7.7%. 🔄 Reduces “right-for-wrong-reasons” errors by 40%. 💡 Introduces innovative applications like best program selection, answer refusal, and unsupervised reward design. Dive into the 🧵👇 (1/5) Method Overview ViUniT leverages the power of language models and diffusion models to create robust visual unit tests: 📝 Unit Test Generation: Language models generate image descriptions and expected answers for visual queries. 🎨 Image Creation: Diffusion models then synthesize corresponding images, ensuring logical coverage and diversity. ✅ Logical Verification: Visual programs are tested for logical correctness against these generated unit tests, catching errors beyond output accuracy.
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  13. Salesforce AI Research✓@SFResearch
    🎉Just Announced: "ViUniT: Visual Unit Tests for More Robust Visual Programming" has been accepted at #CVPR2025! Paper Link: Project Page: Researcher’s walk-through 👇 In collaboration with @UPenn, we introduce ViUniT, a framework that enhances the reliability of visual programs by automatically generating unit tests by leveraging #LLMs and #DiffusionModels. Our approach: 📊 Boosts model performance by 11.4% and outperforms gpt-4o-mini by 7.7%. 🔄 Reduces “right-for-wrong-reasons” errors by 40%. 💡 Introduces innovative applications like best program selection, answer refusal, and unsupervised reward design. Dive into the 🧵👇 (1/5) Method Overview ViUniT leverages the power of language models and diffusion models to create robust visual unit tests: 📝 Unit Test Generation: Language models generate image descriptions and expected answers for visual queries. 🎨 Image Creation: Diffusion models then synthesize corresponding images, ensuring logical coverage and diversity. ✅ Logical Verification: Visual programs are tested for logical correctness against these generated unit tests, catching errors beyond output accuracy.
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  14. Artemis Panagopoulou✓@artemispng
    Exciting news! 🎉 Our paper “ViUniT: Visual Unit Tests for More Robust Visual Programming” got accepted at #CVPR2025
    Salesforce AI Research @SFResearch
    🎉Just Announced: "ViUniT: Visual Unit Tests for More Robust Visual Programming" has been accepted at #CVPR2025! Paper Link: Project Page: Researcher’s walk-through 👇 In collaboration with @UPenn, we introduce ViUniT, a framework that enhances the reliability of visual programs by automatically generating unit tests by leveraging #LLMs and #DiffusionModels. Our approach: 📊 Boosts model performance by 11.4% and outperforms gpt-4o-mini by 7.7%. 🔄 Reduces “right-for-wrong-reasons” errors by 40%. 💡 Introduces innovative applications like best program selection, answer refusal, and unsupervised reward design. Dive into the 🧵👇 (1/5) Method Overview ViUniT leverages the power of language models and diffusion models to create robust visual unit tests: 📝 Unit Test Generation: Language models generate image descriptions and expected answers for visual queries. 🎨 Image Creation: Diffusion models then synthesize corresponding images, ensuring logical coverage and diversity. ✅ Logical Verification: Visual programs are tested for logical correctness against these generated unit tests, catching errors beyond output accuracy.
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  15. Artemis Panagopoulou✓@artemispng
    Artemis Panagopoulou
    RT @YueYangAI: We share Code-Guided Synthetic Data Generation: using LLM-generated code to create multimodal datasets for text-rich images, such as charts📊, documents📄, etc., to enhance Vision-Language Models. Website: Dataset: Paper: Code:
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