Jiexi Liu
6 papers · 2019–2026 · 3 venues · across top CS/AI venues
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Achievements
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π Interdisciplinary Bridge Β· Silver π Academic Marathon Β· Sprint πΊοΈ Taxonomy Completionist (25) π£ Hot Topic Early Bird π Conference Polyglot Β· Bronze
π§¬
Topic Evolution
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Conference Pioneer
Top co-authors
Research topics
Machine Learning
(6)
Deep Learning
(4)
Learning Types Β· Machine Learning
(4)
Learning Types Β· Deep Learning
(4)
Natural Language Processing
(3)
Core Methods
(3)
Artificial Intelligence
(2)
Data Science & Analytics
(2)
Applications
(2)
Core AI
(2)
Methods
(2)
Reinforcement Learning
(1)
Application Areas
(1)
Architectures
(1)
Generation
(1)
Keywords
irregular sampling
(2)
representation learning
(2)
contrastive learning
(2)
self-supervised learning
(2)
attention mechanism
(1)
data augmentation
(1)
relation extraction
(1)
information extraction
(1)
named entity recognition
(1)
offensive language detection
(1)
channel attention
(1)
language understanding
(1)
hierarchical reinforcement learning
(1)
multiple instance learning
(1)
time series
(1)
bag-level labels
(1)
multivariate time series
(1)
temporal augmentation
(1)
universal representation
(1)
entity extraction
(1)
Papers
Beyond Observations: Reconstruction Error-Guided Irregularly Sampled Time Series Representation Learning
AAAI 2026
TimeCHEAT: A Channel Harmony Strategy for Irregularly Sampled Multivariate Time Series Analysis
AAAI 2025
TimesURL: Self-Supervised Contrastive Learning for Universal Time Series Representation Learning
AAAI 2024
Multiple Instance Learning for Offensive Language Detection
EMNLP 2022
Robustness Testing of Language Understanding in Task-Oriented Dialog
ACL 2021
A Hierarchical Framework for Relation Extraction with Reinforcement Learning
AAAI 2019