collaborators

6 papers

cs.AI2026

DFAH-Bench: Benchmarking Observable Agent Instability in Financial Decision-Making

Raffi Khatchadourian

A financial AI agent can repeat a decision while changing the tools, order, or recorded arguments and results used to reach it. Outcome-only evaluation misses this variation, even…

cs.AI2026

Replayable Financial Agents: A Determinism-Faithfulness Assurance Harness for Tool-Using LLM Agents

Raffi Khatchadourian

LLM agents struggle with regulatory audit replay: when asked to reproduce a flagged transaction decision with identical inputs, many deployments fail to return consistent results.…

q-fin.GN2026

Forecasting Future Language: Context Design for Mention Markets

Sumin Kim, Jihoon Kwon, Yoon Kim +9

Mention markets, a type of prediction market in which contracts resolve based on whether a specified keyword is mentioned during a future public event, require accurate probabilist…

cs.SE2025

An Empirical Framework for Evaluating Semantic Preservation Using Hugging Face

Nan Jia, Anita Raja, Raffi Khatchadourian

As machine learning (ML) becomes an integral part of high-autonomy systems, it is critical to ensure the trustworthiness of learning-enabled software systems (LESS). Yet, the nonde…

cs.LG2025

LLM Output Drift: Cross-Provider Validation & Mitigation for Financial Workflows

Raffi Khatchadourian, Rolando Franco

Financial institutions deploy Large Language Models (LLMs) for reconciliations, regulatory reporting, and client communications, but nondeterministic outputs (output drift) undermi…

cs.SE2025

Speculative Automated Refactoring of Imperative Deep Learning Programs to Graph Execution

Raffi Khatchadourian, Tatiana Castro Vélez, Mehdi Bagherzadeh +2

Efficiency is essential to support ever-growing datasets, especially for Deep Learning (DL) systems. DL frameworks have traditionally embraced deferred execution-style DL code -- s…