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Maya Okawa

9 accepted papers

2026

Emergence of Hierarchical Emotion Organization in Large Language Models

ICML 2026poster

As large language models (LLMs) increasingly power conversational agents, understanding how they model users' emotional states is critical for ethical deployment. Inspired by emotion wheels, i.e., a psychological framework that argues emotions organize hierarchically, we analyze probabilistic depend…

Cited by 0SourceScholar
2025

ICLR: In-Context Learning of Representations

ICLR 2025poster

Recent work demonstrates that structured patterns in pretraining data influence how representations of different concepts are organized in a large language model’s (LLM) internals, with such representations then driving downstream abilities. Given the open-ended nature of LLMs, e.g., their ability t…

Cited by 7SourcePDFScholar
2025

Representation Shattering in Transformers: A Synthetic Study with Knowledge Editing

ICML 2025poster

Knowledge Editing (KE) algorithms alter models' weights to perform targeted updates to incorrect, outdated, or otherwise unwanted factual associations. However, recent work has shown that applying KE can adversely affect models' broader factual recall accuracy and diminish their reasoning abilities.…

Cited by 0SourcePDFScholar
2025

Swing-by Dynamics in Concept Learning and Compositional Generalization

ICLR 2025poster

Prior work has shown that text-conditioned diffusion models can learn to identify and manipulate primitive concepts underlying a compositional data-generating process, enabling generalization to entirely novel, out-of-distribution compositions. Beyond performance evaluations, these studies develop…

Cited by 0SourcePDFScholar
2024

Emergence of Hidden Capabilities: Exploring Learning Dynamics in Concept Space

NeurIPS 2024spotlight

Modern generative models demonstrate impressive capabilities, likely stemming from an ability to identify and manipulate abstract concepts underlying their training data. However, fundamental questions remain: what determines the concepts a model learns, the order in which it learns them, and its ab…

2024

Towards an Understanding of Stepwise Inference in Transformers: A Synthetic Graph Navigation Model

ICML 2024poster

Stepwise inference protocols, such as scratchpads and chain-of-thought, help language models solve complex problems by decomposing them into a sequence of simpler subproblems. To unravel the underlying mechanisms of stepwise inference we propose to study autoregressive Transformer models on a synthe…

Cited by 4SourcePDFScholar
2023

Compositional Abilities Emerge Multiplicatively: Exploring Diffusion Models on a Synthetic Task

NeurIPS 2023poster

Modern generative models exhibit unprecedented capabilities to generate extremely realistic data. However, given the inherent compositionality of the real world, reliable use of these models in practical applications requires that they exhibit the capability to compose a novel set of concepts to gen…

2019

Spatially Aggregated Gaussian Processes with Multivariate Areal Outputs

NeurIPS 2019poster

We propose a probabilistic model for inferring the multivariate function from multiple areal data sets with various granularities. Here, the areal data are observed not at location points but at regions. Existing regression-based models can only utilize the sufficiently fine-grained auxiliary data s…

Cited by 33SourcePDFScholar