Kraken2
基于 k-mer 精确匹配的超快速物种分类工具，使用紧凑哈希表在数分钟内完成宏基因组样本的物种鉴定。 该方法速度极快且准确性高，支持自定义参考数据库，是宏基因组物种分类的首选工具。
| Property | Value |
|---|---|
| Purpose | 基于 k-mer 的超快速宏基因组物种分类 |
| Time Complexity | O(n * k) |
| Space Complexity | O(d) |
| Year | 2019 |
| Category | Metagenomics |
Complexity Analysis
- Time Complexity:
O(n * k) - Space Complexity:
O(d)
Performance Insight: The time complexity of this algorithm is polynomial.
Note: Complexity analysis is based on theoretical models. Actual runtime is affected by input scale, hardware, and implementation optimizations. Benchmark for your specific workload.
Literature & Implementation
Related Tools
Bracken · Centrifuge · CLARK