Ning Liu

Robust Multi-Model Estimation for Reliable Relative Navigation Based on Observability and Abnormity Analysis

2023 · IEEE Transactions on Intelligent Transportation Systems

High-precision relative positioning and navigation is a fundamental requirement for many applications such as flight formation, spacecraft docking and collision avoidance. The main purpose of this paper is to develop a robust multi-model estimation algorithm …

Logic Event Graph Enhanced Narrative Generation

2023

Narrative generation aims at producing fluent long texts from input data, which is widely used in event prediction, story generation and other fields. Previous work mainly relied on text data, picture data, knowledge graphs, etc. …

A Collaborative Filtering Algorithm Based on Sentiment Analysis in Review Texts

2023 · Automation and Machine Learning

To improve the performance of collaborative filtering algorithm, a collaborative filtering algorithm based on sentiment analysis in review texts (CF_SA) is proposed in this paper. First, LDA (Latent Dirichlet Allocation) is used to form the …

FlexKBQA: A Flexible LLM-Powered Framework for Few-Shot Knowledge Base Question Answering

2024 · Proceedings of the AAAI Conference on Artificial Intelligence

Knowledge base question answering (KBQA) is a critical yet challenging task due to the vast number of entities within knowledge bases and the diversity of natural language questions posed by users. Unfortunately, the performance of …

Incomplete Multi-View Drug Recommendation via Multi-Level Representation Learning and Curriculum Learning

2025

The drug recommendation task aims to provide effective and safe prescription decision support for clinical treatment based on patients' past Electronic Health Records (EHR). However, the prevalent phenomenon of missing views in multi-source heterogeneous EHR …