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Zhengyuan Zhu

Projects & Research

A collection of research projects, industry work, and side projects spanning NLP, AI agents, data visualization, and web development.

NLP & Fact-Checking

RATSD

Retrieval-augmented system for detecting truthfulness stance of social media posts toward factual claims. Combines dense retrieval with stance classification.

NAACL 2025PythonPyTorchRAG

TSD-CT

A benchmark dataset for truthfulness stance detection with fine-grained claim-tweet pairs and comprehensive annotations.

CIKM 2025DatasetNLP

TrustMap

Mapping truthfulness stance of social media posts on factual claims for geographical analysis using GIS visualization.

CIKM 2025GISVisualization

COVID-19 Misinfodemic Dashboard

Real-time dashboard for monitoring and mitigating COVID-19 misinformation on social media with fact-check integration.

EACL 2021DashboardPython

Hallucination Mitigation in KG-NLG

Reducing hallucinations in natural language generation from large-scale open-domain knowledge graphs.

EMNLP 2023Knowledge GraphsNLG

LLMTaxo

Leveraging large language models for automatically constructing taxonomy of factual claims from social media.

ACL 2025LLMsTaxonomy

AI Agents & LLMs

Agent Executor

Core multi-agent orchestration engine at Adobe serving tens of thousands of enterprise users, routing queries to 15+ specialized AI agents with sequential dependencies.

AdobePythonLLMsProduction

MuRAR

Multimodal retrieval and answer refinement framework for question answering. Won Best Demonstration Paper at COLING 2025. Patent filed.

COLING 2025Best DemoPatentMultimodal

Response Synthesis

End-to-end LLM-based evaluation pipeline with human-LLM alignment study for measuring response quality in agent systems.

AdobeLLM EvalProduction

Context-Aware Agent Selection

Application-context ranking module that analyzes production traffic patterns to reduce agent misrouting. Covers 80.8% of interactions.

AdobeRankingML

Data & Visualization

Wildfire

Twitter social sensing platform for layperson, enabling real-time monitoring and analysis of wildfire-related social media activity.

WSDM 2024Twitter APIReal-time

StanceMap

Interactive visualization tool for mapping and analyzing stance distributions across social media conversations on factual claims.

VisualizationPythonGIS

Web Applications

AI-Interactive-Teacher

Ionic mobile app powered by TensorFlow.js for interactive AI-assisted teaching and learning experiences.

IonicTensorFlow.jsMobile

Uber-ServeMe-System

Uber subsystem built with Ionic4, Angular8, and Firebase for service management and real-time coordination.

Ionic4Angular8Firebase

Maze Game

Interactive browser-based maze game with keyboard controls. A fun Easter egg on this very site.

JavaScriptCSSGame
Jack the orange tabby cat
I'm Jack 🧡
Luna the tuxedo cat
I'm Luna! 🖤