Haike Xu
8 papers · 2021–2026 · 5 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 π Conference Polyglot Β· Silver πΊοΈ Taxonomy Completionist (19) π Keyword Champion (2)
π
Trend Setter
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Renaissance Researcher
(6)
Venues
Top co-authors
Research topics
Machine Learning
(6)
Optimization & Theory
(5)
Mathematics & Optimization
(3)
Optimization
(3)
Computer Science
(2)
Data Science & Analytics
(2)
Applications Β· Data Science & Analytics
(2)
Foundations
(2)
Learning Types
(2)
Deep Learning
(1)
Natural Language Processing
(1)
Reinforcement Learning
(1)
Applications Β· Natural Language Processing
(1)
Applications Β· Computer Science
(1)
Core Methods
(1)
Keywords
graph-based algorithm
(2)
query time
(2)
lower bound
(2)
representation learning
(1)
density estimation
(1)
information retrieval
(1)
text classification
(1)
stochastic approximation
(1)
approximate nearest neighbor
(1)
multi-armed bandit
(1)
upper confidence bound
(1)
regret bound
(1)
online algorithm
(1)
sampling complexity
(1)
confidence interval
(1)
worst-case performance
(1)
embedding dimension
(1)
directed acyclic graph
(1)
discriminative model
(1)
zero-shot learning
(1)
Papers
Compact Geometric Representations of Hierarchies
COLT 2026
Contradiction Retrieval via Contrastive Learning with Sparsity
ICML 2025
Graph-Based Algorithms for Diverse Similarity Search
ICML 2025
Statistical-Computational Trade-offs for Density Estimation
NeurIPS 2024
A Universal Discriminator for Zero-Shot Generalization
ACL 2023
Worst-case Performance of Popular Approximate Nearest Neighbor Search Implementations: Guarantees and Limitations
NeurIPS 2023
Fine-Grained Gap-Dependent Bounds for Tabular MDPs via Adaptive Multi-Step Bootstrap
COLT 2021
Simple combinatorial algorithms for combinatorial bandits: corruptions and approximations
UAI 2021