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Krista A. Ehinger

11 accepted papers

2026

Pixel-Level Residual Diffusion Transformer: Scalable 3D CT Volume Generation

ICLR 2026poster

Generating high-resolution 3D CT volumes with fine details remains challenging due to substantial computational demands and optimization difficulties inherent to existing generative models. In this paper, we propose the Pixel-Level Residual Diffusion Transformer (PRDiT), a scalable generative framew…

Cited by 0SourceScholar
2025

Beyond Perception: Evaluating Abstract Visual Reasoning through Multi-Stage Task

ACL 2025finding

Current Multimodal Large Language Models (MLLMs) excel in general visual reasoning but remain underexplored in Abstract Visual Reasoning (AVR), which demands higher-order reasoning to identify abstract rules beyond simple perception. Existing AVR benchmarks focus on single-step reasoning, emphasizin…

2025

Planning-Driven Programming: A Large Language Model Programming Workflow

ACL 2025long

The strong performance of large language models (LLMs) raises extensive discussion on their application to code generation. Recent research suggests continuous program refinements through visible tests to improve code generation accuracy in LLMs. However, these methods suffer from LLMs’ inefficiency…

2025

TCAM-Diff: Triplane-Aware Cross-Attention Medical Diffusion Model

AAAI 2025technical

We introduce TCAM-Diff, a novel 3D medical image generation model that reduces the memory requirements to encode and generate high-resolution 3D data. This model utilizes a decoder-only autoencoder method to learn triplane representation from dense volume and leverages generalization operations to p…

Cited by 0SourcePDFScholar
2024

Generalized Planning for the Abstraction and Reasoning Corpus

AAAI 2024technical

The Abstraction and Reasoning Corpus (ARC) is a general artificial intelligence benchmark that poses difficulties for pure machine learning methods due to its requirement for fluid intelligence with a focus on reasoning and abstraction. In this work, we introduce an ARC solver, Generalized Planning…

2024

KALE: An Artwork Image Captioning System Augmented with Heterogeneous Graph

IJCAI 2024poster

Exploring the narratives conveyed by fine-art paintings is a challenge in image captioning, where the goal is to generate descriptions that not only precisely represent the visual content but also offer a in-depth interpretation of the artwork's meaning. The task is particularly complex for artwork…

2024

Perceiving Longer Sequences With Bi-Directional Cross-Attention Transformers

NeurIPS 2024poster

We present a novel bi-directional Transformer architecture (BiXT) which scales linearly with input size in terms of computational cost and memory consumption, but does not suffer the drop in performance or limitation to only one input modality seen with other efficient Transformer-based approaches.…

2023

Unicode Analogies: An Anti-Objectivist Visual Reasoning Challenge

CVPR 2023poster

Analogical reasoning enables agents to extract relevant information from scenes, and efficiently navigate them in familiar ways. While progressive-matrix problems (PMPs) are becoming popular for the development and evaluation of analogical reasoning in computer vision, we argue that the dominant met…

2021

Invertible Concept-based Explanations for CNN Models with Non-negative Concept Activation Vectors

AAAI 2021technical

Convolutional neural network (CNN) models for computer vision are powerful but lack explainability in their most basic form. This deficiency remains a key challenge when applying CNNs in important domains. Recent work on explanations through feature importance of approximate linear models has moved…