Yu Liu

Reaearch on underwater integrated navigation system based on SINS/DVL/magnetometer/depth-sensor

2017 · OCEANS 2017 - Aberdeen

For the long-range voyage and light Autonomous Underwater Vehicle (AUV), the high-precision navigation and positioning is the key point in the completion of the task. Therefore, this paper designs an underwater integrated navigation system, including …

An Interacting Multiple Model Smoothing Algorithm for Nonlinear Maneuvering Target Tracking

2019 · 2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP)

In order to improve the accuracy of nonlinear maneuvering target tracking system, this paper proposes a novel IMM smoothing algorithm, which can be used in two types of IMM smoothing by changing the delay time …

The $f$-Divergence Reinforcement Learning Framework

2021 · arXiv (Cornell University)

The framework of deep reinforcement learning (DRL) provides a powerful and widely applicable mathematical formalization for sequential decision-making. This paper present a novel DRL framework, termed \emph{$f$-Divergence Reinforcement Learning (FRL)}. In FRL, the policy evaluation …

Interval type-2 polynomial fuzzy fault detection scheme with a multi-order homogeneous polynomial Lyapunov functions considering unmeasurable premise variables

2023 · Information Sciences

A polynomial fuzzy fault detection scheme for sampled-output-measurements-based interval type-2 (IT2) polynomial-fuzzy-model-based (PFMB) systems is investigated in this paper, where the uncertainties in the premise variables (PVs) and membership functions (MFs) are described by IT2 …

BARA: A Dynamic State-based Serious Game for Teaching Requirements Elicitation

2023

Teaching requirements elicitation to students who do not have practical experience is challenging, as they usually cannot understand the difficulty. Several recent studies have reported their experience of teaching requirements elicitation with a serious game. …

A Compatibility Evaluation Method for Substation Protection and Monitoring System Based on G1 Method and Expert Investigation

2023

In existing protection and monitoring system of substation(S-PMS), there are compatibility problems between hardware and software or between software-hardware combinations and systems, including differences in communication protocols between different manufacturers and differences in system adaptation. …

VulDetectBench: Evaluating the Deep Capability of Vulnerability Detection with Large Language Models

2024 · arXiv (Cornell University)

Large Language Models (LLMs) have training corpora containing large amounts of program code, greatly improving the model's code comprehension and generation capabilities. However, sound comprehensive research on detecting program vulnerabilities, a more specific task related …

The Devil is in the Neurons: Interpreting and Mitigating Social Biases in Pre-trained Language Models

2024 · arXiv (Cornell University)

Pre-trained Language models (PLMs) have been acknowledged to contain harmful information, such as social biases, which may cause negative social impacts or even bring catastrophic results in application. Previous works on this problem mainly focused …

Exploring the Role of Large Language Models in Prompt Encoding for Diffusion Models

2024 · arXiv (Cornell University)

Large language models (LLMs) based on decoder-only transformers have demonstrated superior text understanding capabilities compared to CLIP and T5-series models. However, the paradigm for utilizing current advanced LLMs in text-to-image diffusion models remains to be …

Learn to Walk with Continuous-action for Knowledge-enhanced Recommendation System

2024

Knowledge graphs are more widely utilized to enhance recommendability and explainability. Reinforcement learning agents built to wander around the knowledge graph have been successfully applied in recommendation systems in a form of multi-hop relation reasoning. …

AI Chip-based Intelligent Behavior Analysis and Anomaly Detection System for Power Logistics

2025

The intelligent evolution of power systems demands higher safety and efficiency in power logistics, where traditional surveillance exhibits delayed responses and limited analytical capabilities. This paper proposes a behavior analysis and anomaly detection scheme using …

A Study on Cultural Representation in Local Chinese Textbooks: A Case Study of Across the Silk Road 2 and Everyday Chinese 3 & 4

2025 · Journal of Macau University of Science and Technology

Culture plays a crucial role in the design of locally developed Chinese language textbooks, raising important pedagogical questions regarding which cultures should be included, whose cultures are represented, and how these cultural elements are integrated. …

Time Tells All: Deanonymization of Blockchain RPC Users with Zero Transaction Fee (Extended Version)

2025 · arXiv (Cornell University)

Remote Procedure Call (RPC) services have become a primary gateway for users to access public blockchains. While they offer significant convenience, RPC services also introduce critical privacy challenges that remain insufficiently examined. Existing deanonymization attacks …

FAVOR: Efficient Filter-Agnostic Vector ANNS Based on Selectivity-Aware Exclusion Distances

2026 · Proceedings of the ACM on Management of Data

Modern retrieval systems increasingly require integrating approximate nearest neighbor search (ANNS) with complex attribute filtering to handle hybrid queries in applications such as recommendation systems and retrieval-augmented generation (RAG). While HNSW-based inline-filtering methods show promise, …