HISAT2
基于层次化 FM 索引的剪接感知比对工具，使用全局和局部索引相结合的策略进行 RNA-seq 比对。 该方法内存占用低、速度快，能准确处理剪接比对，适用于 RNA-seq 和基因组比对。
| Property | Value |
|---|---|
| Purpose | 低内存、高速的剪接感知比对 |
| Time Complexity | O(n) |
| Space Complexity | O(n) |
| Year | 2015 |
| Category | Sequence Alignment |
Complexity Analysis
- Time Complexity:
O(n) - Space Complexity:
O(n)
Performance Insight: The time complexity of this algorithm is linear (O(n)), scales linearly to TB-scale data and is suitable for streaming pipelines. Linear space can often be reduced by constant factors via sliding-window techniques.
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
STAR · TopHat2 · BWA