汽车有6个属性，每个属性都有几种类别，根据这6个属性来判断汽车的性价比Classvalue如何， ClassValues有以下几种情况unacc,acc, good,vgood buying（ vhigh,high,med,low） maint（vhigh,high,med,low） doors（ 2,3,4,5more） persons（2,4,more） lug_boot（ small ,med,big） safety（ low,med,high） ClassValues（ unacc,acc, good,vgood） 此例子的决策树算法，通过给定数据生成决策

6 Different Ways to Compensate for Missing Values In a Dataset

SN_29500-5_Part_5_Expected_values_for_electrical_connections,_electrical_connectors_and_sockets 可靠性设计

We present WiscKey, a persistent LSM-tree-based key-value store with a performance-oriented data layout that separates keys from values to minimize I/O amplification. The design of WiscKey is highly SSD optimized, leveraging both the sequential and random performance characteristics of the device. We demonstrate the advantages of WiscKey with both microbenchmarks and YCSB workloads. Microbenchmark results show that WiscKey is 2.5×–111× faster than LevelDB for loading a database and 1.6×–14× faster for random lookups. WiscKey is faster than both LevelDB and RocksDB in all six YCSB workloads.

android屏幕适配 ，生成values-1280x720,values-1920x1080等的工具

1.Frequent Values(poj 3368) 2.郁闷的出纳员（伸展树）