Systems

Systems for evolving agent working environments, semantic queries, graph databases, and accelerator-native execution.

My systems research spans external working environments for AI agents, semantic query processing, graph databases, and accelerator-native execution. These are distinct systems and research lines, not components of one deployed stack.

Papers by research area →

Agents & retrieval

UBASE @ ByteDance

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A production AI search engine for trillion-scale vector data, combining graph-index construction with hybrid memory and SSD storage.

Paper

Query & graph engines

SEMA

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A semantic query engine built on DuckDB, integrating LLM-powered operators into SQL with query optimization and adaptive execution.

Paper

TGraph @ Huawei

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A tensor-centric graph processing framework with graph operators, compression, and out-of-memory execution across tensor runtimes and accelerator backends.

Paper

TenGraph @ Huawei

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A PyTorch-based graph query engine using compact tensor representations of graph topology and batched graph-query operations.

Paper

Vora

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A vector-based engine for scalable GPU-accelerated subgraph query processing.

Paper

Distributed analytics

DISC @ CUHK

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A distributed graph analytics system that expresses subgraph counting as relational queries, reusing query optimization and execution techniques.

Overview Paper Code

Crystal @ CUHK

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A compressed subgraph-matching system that computes compressed results directly to reduce intermediate and output materialization.

Overview Paper Code