Our first attempt at smoothing out the interface problem came with providing a way to build command-line tools.
为了给命令行工具留出实现途径，带来了一些接口问题，这是我们首先打算消除的。
2
The present smoothing techniques deal with the data sparse problem using different discount and compensate strategy, and they have different merit or shortcoming on complexity and rationality.
现有平滑技术利用不同的折扣和补偿策略来处理数据稀疏问题，在计算复杂性与合理性方面各有其优缺点。
3
The present smoothing techniques have solved the data sparse problem effectively but have not further analyzed the reasonableness for the frequency distribution of events occurring.