Singapore

Large language models (LLMs) are increasingly used to simulate human behavior in high-stakes social settings such as legal mediation, negotiation, and dispute resolution. However, it remains unclear if the LLM-based models simulating human behavior accurately represent the underlying psychological mechanisms. Human personality, for instance, may shape how individuals navigate social interactions, including strategic choices and behaviors in emotionally charged interactions. This raises a critical question: Can LLMs, when prompted with personality traits, reproduce personality-driven differences in human conflict behavior? To explore this, we introduce an evaluation framework that compares human-human and LLM-LLM behaviors in dispute resolution dialogues concerning Big Five Inventory personality traits. Our contributions include introducing a novel methodology to create a dataset of human and LLM dialogs with matched scenarios and personality traits and a set of interpretable metrics capturing strategic and conflict outcome dynamics. We analyze three recent closed-source LLMs and show significant divergences in how personality manifests in conflict across different LLMs compared to human data, challenging the assumption that personality-prompted agents can serve as reliable behavioral proxies in socially impactful applications. Our work highlights the need for psychological grounding and rigorous validation in AI simulations before real-world use.

AAAI 2026

Can LLMs Truly Embody Human Personality? Analyzing AI and Human Behavior Alignment in Dispute Resolution

simulating human behavior

natural language processing (nlp)

humanities & computational social science

## Welcome!
"I am excited to welcome you to this year’s edition of the Conference on Empirical Methods in Natural Language Processing! Importantly, it marks the 30th edition of EMNLP. With over 8,000 submissions, more than 3,000 accepted papers, and thousands of attendees, we have come a long way from that first
workshop, which had 14 accepted papers. As the field looks ahead, Suzhou is the fitting location for celebrating this milestone: rooted in a long literary tradition, yet modern and forward-looking, and home to a large share of the NLP community." 

*Message from the General Chair, Dirk Hovy*

EMNLP 2025

Celebrate 30 Years of EMNLP! 
EMNLP 2025 will be held in Suzhou, China from November 5th to November 9th, 2025.

poster

We are pleased to announce the Fortieth AAAI Conference on Artificial Intelligence (AAAI-26), which will be held in Singapore EXPO from January 20 to January 27, 2026.

The purpose of the AAAI conference series is to promote research in Artificial Intelligence (AI) and foster scientific exchange between researchers, practitioners, scientists, students, and engineers across the entirety of AI and its affiliated disciplines. AAAI-26 will feature technical paper presentations, special tracks, invited speakers, workshops, tutorials, poster sessions, senior member presentations, competitions, and exhibit programs, and a range of other activities to be announced.

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We are pleased to announce the Fortieth AAAI Conference on Artificial Intelligence (AAAI-26), which will be held in Singapore EXPO from January 20 to January 27, 2026.

Predictive modeling in high-stakes domains often suffers from limited observed features due to ethical and practical constraints. To address this challenge, we propose a novel approach that formulates latent feature mining as a text-to-text propositional logic reasoning task, facilitating domain knowledge integration and improving the interpretability of latent features. We design FLAME, a domain knowledge-augmented reasoning framework for latent feature mining, offering an efficient training paradigm to strengthen the domain-specific reasoning capabilities of large language models (LLMs) for latent feature extraction. The goal of our framework is to augment observed features with inferred latent features, enhancing the performance of predictive models in downstream machine learning tasks. We validate our approach through two case studies: (1) the criminal justice system, where data collection is ethically challenging and inherently limited, and (2) the healthcare domain, where patient privacy concerns and the complexity of medical data restrict comprehensive feature collection. Experimental results demonstrate that the inferred latent features significantly enhance the performance of downstream classifiers by over 10%.

Enhancing Predictive Model Learning via Domain-Knowledge Augmented Latent Feature Mining

Clinical case reports encode temporal patient trajectories that are often underexploited by traditional machine learning methods relying on structured data. In this work, we introduce the forecasting problem from textual time series, where timestamped clinical findings--extracted via an LLM-assisted annotation pipeline--serve as the primary input for prediction. We systematically evaluate a diverse suite of models, including fine-tuned decoder-based large language models and encoder-based transformers, on tasks of event occurrence prediction, temporal ordering, and survival analysis. Our experiments reveal that encoder-based models consistently achieve higher F1 scores and superior temporal concordance for short- and long-horizon event forecasting, while fine-tuned masking approaches enhance ranking performance. In contrast, instruction-tuned decoder models demonstrate a relative advantage in survival analysis, especially in early prognosis settings. Our sensitivity analyses further demonstrate the importance of time ordering, which requires clinical time series construction, as compared to text ordering, the format of the text inputs that LLMs are classically trained on. This highlights the additional benefit that can be ascertained from time-ordered corpora, with implications for temporal tasks in the era of widespread LLM use.

Forecasting Clinical Risk from Textual Time Series: Structuring Narratives for Temporal AI in Healthcare

Automated classification of complex social survey questionnaires is crucial for large-scale social science research but faces significant reliability challenges due to intricate hierarchical label structures, severe class imbalance, semantic ambiguity, and incomplete data coverage. Conventional classification methods often struggle with these combined complexities, yielding results that lack trustworthiness. We introduce HOCM, a framework designed for trustworthy classification in complex, real-world taxonomies. It features two synergistic components: (1) memory-enhanced contrastive learning, tailored to learn robust representations from noisy, imbalanced data by leveraging quality-aware category memory banks; and (2) hierarchical uncertainty calibration, which enforces taxonomic consistency while providing reliable confidence estimates and identifying inputs falling outside well-represented known categories. Our evaluation on a large-scale, real-world social survey dataset—a challenging exemplar of our target problem class—demonstrates that HOCM maintains strong accuracy on known classes while effectively identifying uncertain cases, significantly boosting accuracy on confident predictions. Furthermore, it adeptly detects low-resource/unknown categories. HOCM provides a more reliable automated classification tool, enabling efficient expert review and enhancing the trustworthiness of analysis in domains with complex, hierarchical data.

Trustworthy Classification for Complex Social Surveys: A Memory-Enhanced Hierarchical Framework with Calibrated Uncertainty

Photovoltaic (PV) power forecasting is critical for the operation of solar power plants and the coordination of energy within power grids. This work aims to predict future PV power time series by leveraging multimodal data. While recent studies have incorporated numerical modalities such as satellite image sequences and numerical weather prediction (NWP) time series, they often overlook textual modalities—such as the spatio-temporal context of PV plants—and the potential of pretrained large language models (LLMs). In this paper, we build upon existing numerical inputs and further explore the use of spatio-temporal text prompts, generated based on plant coordinate and forecast start time, to enhance the forecasting process. We propose PV-LLM, a satellite-text-prompted framework that integrates a pretrained LLM to improve PV power forecasting. The framework consists of three key components: Text Prompt Construction, Modality-Specific Encoding, and Adaptive Prompt Tuning. First, the Text Prompt Construction module generates spatio-temporal prompts that offer high-level semantic guidance. Next, the Modality-Specific Encoding module encodes each modality according to its unique characteristics, capturing modality-specific patterns while managing varying context lengths. Finally, the Adaptive Prompt Tuning module fine-tunes the LLM to integrate multimodal embeddings, while an adaptive gating mechanism retains its pretrained knowledge. We validate the effectiveness of our proposed framework on a real-world dataset containing multiple PV plants. Experimental results demonstrate that our approach outperforms existing state-of-the-art methods.

Satellite-Text-Prompted Large Language Model for Photovoltaic Power Forecasting

Scaling long-context and agentic LLMs is increasingly
limited by memory capacity and bandwidth rather than FLOPs.
I propose an algorithmic framework for context engineering
that models placement, compression, and scheduling as
coupled optimization problems with explicit
accuracy-efficiency trade-offs. Concretely, I will develop
(1) salience-aware retention/eviction policies with
provable approximation guarantees relative to an ideal
oracle; (2) tier-dependent compression schemes that bound
error propagation across memory levels; and (3)
probabilistic prefetch/scheduling that controls tail
latency. I will evaluate on long-context language modeling
and reasoning benchmarks, isolating each component via
ablations and comparing against heuristic baselines under
controlled bandwidth/capacity regimes. Results target
improved throughput and energy metrics at near-baseline
quality, advancing principled, hardware-aware inference
without requiring custom hardware.

Algorithms for Context Engineering in LLM Inference: Optimization of Placement, Compression, and Scheduling

This paper proposes an AI-driven framework for real-time
acoustic modelling that enhances audio perception in
dynamic environments. The system combines feedback
microphones, deep learning models, and adaptive acoustic
panels to monitor and optimize room acoustics continuously.
Convolutional and recurrent neural networks estimate
reverberation and clarity metrics, while a reinforcement
learning controller adjusts panel states for optimal
intelligibility. Unlike static treatments, this closed-loop
approach adapts to changing occupancy, noise, and source
locations. The expected outcome is a robust, intelligent
acoustic system with significant applications in education,
healthcare, and immersive audio experiences.

AI-Driven Real-Time Acoustic Modelling for Better Audio Perception in Dynamic Environments

Direct Preference Optimization (DPO) typically relies on a
fixed inverse-temperature β that controls divergence from a
reference model. Fixed β is brittle: too small causes
underregularization
(verbosity, safety drift); too large causes
overregularization
(underfitting). I propose an adaptive per-token
KL controller using EMA smoothing, deadband filtering, and
clipping to dynamically adjust β throughout training.
Initial
results on a 7B model show 72% win rate vs. base SFT and
60% vs. fixed-β DPO. The goal is a practical recipe for
stable,
compute-efficient DPO with reduced manual tuning.

Adaptive KL Control for Direct Preference Optimization in Instruction-Following LLMs

Generative AI shows strong capabilities in language,
reasoning, and code but remains prone to
hallucinations—outputs that are fluent yet incorrect. In
cybersecurity, such errors pose serious risks, from
misleading analysts to potential adversarial exploitation.
This project investigates hallucinations in three
directions: (1) creating benchmarks and interpretability
tools to characterize them in security contexts; (2)
developing mitigation strategies such as
retrieval-augmented generation, symbolic-neural hybrids,
and uncertainty-aware decoding; and (3) integrating these
methods into real-world workflows like vulnerability
assessment, malware analysis, and penetration testing,
while exploring how attackers might exploit hallucinations.
Evaluation will combine accuracy metrics, human-in-the-loop
studies, and red-team simulations. By bridging theory and
applied system design, the work aims to advance
understanding of hallucinations and improve the reliability
of AI in cybersecurity, with broader implications for other
high-stakes areas such as healthcare and law.

Hallucinations at the Firewall

Large language models (LLMs) have rapidly advanced, but
their growing compute and memory demands make them
unsustainable and limit accessibility, especially in
under-resourced regions such as Southeast Asia (SEA). While
recent hybrid architectures combining attention and
state-space models (SSMs) have shown promise, most adopt
sequentially interleaving attention and Mamba layers,
leaving parallel-head mixing of attention and Mamba heads
largely unexplored. Hence, I propose investigating
Hymba-style parallel-head hybrid architecture as a
foundation for efficient, multilingual LLMs in SEA. My
short-term goal is to perform continual pre-training (CPT)
of the released Hymba-1.5B weights on SEA corpora to
evaluate their adaptability across diverse languages. In
the longer term, I plan to study scaling strategies beyond
1.5B parameters, assessing whether parallel-head hybrids
maintain efficiency and performance at larger scales.
Evaluation will combine standard perplexity and benchmark
tasks with SEA-specific benchmarks, alongside profiling for
inference throughput and deployability on
resource-constrained devices. The expected outcomes are
twofold: (1) demonstrating that parallel-head hybrids can
be effectively adapted to SEA multilingual contexts, and
(2) providing evidence that this underexplored architecture
scales efficiently. Success would broaden the design space
of efficient LLMs while advancing equitable access to AI by
enabling practical, low-cost, and locally relevant models
for SEA communities.

Adapting Hybrid Parallel-Head Large Language Models for Southeast Asia

Modern generators often violate basic physics—e.g.,
inconsistent shadows, geometry, and measurement models
limiting trust for video synthesis and computational
imaging. We propose finite-time Schrödinger-Bridge (SB)
world models that cast generation as entropy-regularized
optimal transport from a simple prior to a physics- and
data-consistent distribution. Unlike post-hoc corrections,
our approach injects structure along the transport path:
multi-view geometry (reprojection/epipolar constraints,
homographies, depth-aware warps) for video, and
differentiable optical operators (PSF-based defocus,
lightweight Fourier propagation for coherent/partially
coherent settings) for imaging. With known poses, we
penalize reprojection and warp-aligned photometric/feature
errors; with unknown poses, a compact head estimates
motion/flow with cycle-consistency. Compact UNet/ViT
backbones and short SB horizons target efficiency.
Evaluation spans 3D consistency metrics, physics fidelity
via forward-simulation error, and generative
quality/efficiency (FID/KID, FVD) against strong diffusion
baselines, plug-and-play data-consistency, and
unconstrained SB. By constraining the path rather than only
the endpoint, the method aims to shorten sampling while
improving cross-view coherence and physical plausibility
across sensors (cameras, microscopes, medical scanners).

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