Tagged articles

sampling strategies

3 articles · Page 1 of 1

Jan 21, 2026 · Operations

How Tail‑Based Sampling Boosts Distributed Tracing Accuracy While Cutting Costs

This article explains the challenges of accurate RED metric collection in high‑traffic microservices, compares head‑based and tail‑based sampling, and details Volcano Engine APMPlus's multi‑level, hash‑routed tail sampling design, performance optimizations, and real‑world evaluation results.

APMKubernetesObservability

0 likes · 13 min read

How Tail‑Based Sampling Boosts Distributed Tracing Accuracy While Cutting Costs

NewBeeNLP

Oct 13, 2024 · Artificial Intelligence

Unveiling Negative Sampling Strategies: A Comprehensive Guide for Recommender Systems

This article provides a thorough review of negative sampling techniques in recommender systems, categorizing existing methods into five groups, detailing their sub‑strategies, advantages, challenges, and future research directions to improve model accuracy and robustness.

AInegative samplingrecommender systems

0 likes · 11 min read

Unveiling Negative Sampling Strategies: A Comprehensive Guide for Recommender Systems

Pupu Technology

Aug 19, 2024 · Operations

How Pupu APM Halved Costs Using Head Sampling

Facing exploding trace volumes, Pupu APM replaced Elasticsearch with ClickHouse, added tail sampling, and then engineered a head‑sampling solution that discards irrelevant spans at source, cutting daily span reports by half and halving infrastructure costs while preserving critical observability.

APMClickHouseMicroservices

0 likes · 14 min read

How Pupu APM Halved Costs Using Head Sampling