Papers › Log Parsing with Prompt-based Few-shot Learning

Log Parsing with Prompt-based Few-shot Learning

15 Feb 2023arXiv:2302.07435links table onlyarchive 2025-07-28

Van-Hoang Le, Hongyu Zhang

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Logs generated by large-scale software systems provide crucial information for engineers to understand the system status and diagnose problems of the systems. Log parsing, which converts raw log messages into structured data, is the first step to enabling automated log analytics. Existing log parsers extract the common part as log templates using statistical features. However, these log parsers often fail to identify the correct templates and parameters because: 1) they often overlook the semantic meaning of log messages, and 2) they require domain-specific knowledge for different log datasets. To address the limitations of existing methods, in this paper, we propose LogPPT to capture the patterns of templates using prompt-based few-shot learning. LogPPT utilises a novel prompt tuning method to recognise keywords and parameters based on a few labelled log data. In addition, an adaptive random sampling algorithm is designed to select a small yet diverse training set. We have conducted extensive experiments on 16 public log datasets. The experimental results show that LogPPT is effective and efficient for log parsing.

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batch_log_sum_exp logintelligence/logppt/logppt/models/crf_layer.py official repository unverified Apache-2.0 (permissive) · 0e78c01d28fd412e · report
correct_single_template logintelligence/logppt/logppt/postprocess.py official repository unverified Apache-2.0 (permissive) · 615fd20e52fa8924 · report
correct_single_template_for_evaluation logintelligence/logppt/logppt/postprocess.py official repository unverified Apache-2.0 (permissive) · e774fbb783ae663a · report
get_abstract_transitions logintelligence/logppt/logppt/models/viterbi.py official repository unverified Apache-2.0 (permissive) · 6e2592283afbf0a6 · report
get_label_with_crf logintelligence/logppt/logppt/models/roberta.py official repository unverified Apache-2.0 (permissive) · 93b15f86fa6aa34d · report
get_template_line logintelligence/logppt/logppt/parsing_base.py official repository unverified Apache-2.0 (permissive) · 3f0a1b40c7076813 · report
get_template_line logintelligence/logppt/logppt/parsing_par.py official repository unverified Apache-2.0 (permissive) · bdc3b936caef3999 · report
lcs_distance logintelligence/logppt/logppt/sampling_base.py official repository unverified Apache-2.0 (permissive) · 22762e04b2d398ea · report
lcs_similarity logintelligence/logppt/logppt/parsing_cache.py official repository unverified Apache-2.0 (permissive) · 96569b4122986553 · report
map_template logintelligence/logppt/logppt/models/roberta.py official repository unverified Apache-2.0 (permissive) · 32a59d0f85c99b0a · report
message_split logintelligence/logppt/logppt/parsing_cache.py official repository unverified Apache-2.0 (permissive) · abd7b64c1a23f66c · report
post_process_tokens logintelligence/logppt/logppt/parsing_cache.py official repository unverified Apache-2.0 (permissive) · 70ae2daa533bbc42 · report
verify_template logintelligence/logppt/logppt/parsing_base.py official repository unverified Apache-2.0 (permissive) · 45739794b83069e8 · report

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