Tian Lan

Enhancing Defect Prediction with Static Defect Analysis

2015

In the software development process, how to develop better software at lower cost has been a major issue of concern. One way that helps is to find more defects as early as possible, on which …

Tiered cloud storage via two-stage, latency-aware bidding

2017 · arXiv (Cornell University)

In cloud storage, the digital data is stored in logical storage pools, backed by heterogeneous physical storage media and computing infrastructure that are managed by a Cloud Service Provider (CSP). To balance the tradeoff between …

Live Gradient Compensation for Evading Stragglers in Distributed Learning

2021

The training efficiency of distributed learning systems is vulnerable to stragglers, namely, those slow worker nodes. A naive strategy is performing the distributed learning by incor-porating the fastest K workers and ignoring these stragglers, which …

Option-Aware Adversarial Inverse Reinforcement Learning for Robotic Control

2023

Hierarchical Imitation Learning (HIL) has been proposed to recover highly-complex behaviors in long-horizon tasks from expert demonstrations by modeling the task hierarchy with the option framework. Existing methods either overlook the causal relationship between the …

AXIS: Explainable Time Series Anomaly Detection with Large Language Models

2025 · arXiv (Cornell University)

Time-series anomaly detection (TSAD) increasingly demands explanations that articulate not only if an anomaly occurred, but also what pattern it exhibits and why it is anomalous. Leveraging the impressive explanatory capabilities of Large Language Models …