Text Anomaly Detection with Simplified Isolation Kernel

arXiv:2510.13197 · cs.CL · Submitted 2025-10-15 · Read on arXiv

cs.CL

Submitted: 2025-10-15

Updated: 2025-10-15

Comments: EMNLP Findings 2025

DOI: 10.18653/v1/2025.findings-emnlp.680

Code: https://github.com/charles-cao/SIK

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Embeddings — 3× in this paper · explained in 2 episodes
• Simplified Isolation Kernel — 2× in this paper
• Linear Time Complexity — 1× in this paper · explained in 2 episodes

Sources

• TAD-Bench: A Comprehensive Benchmark for Embedding-Based Text Anomaly Detection
• NLP-ADBench: NLP Anomaly Detection Benchmark
• DATE: Detecting Anomalies in Text via Self-Supervision of Transformers
• Efficient Estimation of Word Representations in Vector Space

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