null space是什么意思,null space的意思翻译、用法、同义词、例句
常用词典
[数] 零空间
例句
First, by redefining the within class scatter matrix and the between class scatter matrix, a new null space method was presented.
首先,通过重新定义样本的类内散布矩阵和类间散布矩阵,提出了一种新的零空间法。
The system was converted to the block controllable form consisting of two parts, one was the range space subsystem and the other was the stable null space subsystem.
通过状态变换和去耦合处理将系统转换为块能控标准型,它由值域空间子系统和稳定的零空间子系统组成。
It transforms the double-differential carrier observation equation using null space transformation so that it need not to resolve real-time three-dimensional position parameters.
对单个历元的双差载波相位观测方程进行零空间变换,避免了实时变化的三维位置参数求解;
The optimal feature vectors are extracted from the null space of intrapersonal locality preserving difference scatter matrix, which avoids the singularity and the SSS problem is solved.
通过在个体类内保局差异散度矩阵的零空间中求最优特征向量,避免了矩阵的奇异性问题,解决了小样本问题。
This can lead into additional space savings, if the table contains many NULL values.
如果表中包含很多null值,这样可以节省更多的空间。
网络扩展资料
null
用法:
- 作为名词,null表示“空值”,意味着该值不指向任何有效的对象、数组或变量。例如:
- The variable is initialized to null.(变量被初始化为null。)
- There was a null in the database.(数据库中有一个空值。)
- 作为形容词,null表示“无效的”或“不存在的”。例如:
- A null hypothesis.(无效假设。)
- The null result.(无效的结果。)
近义词:
- None
- Zero
- Empty
- Void
反义词:
- Valid
- Non-null
- Not empty
space
用法:
- 作为名词,space表示“空间”或“空白”。例如:
- The office has plenty of space.(办公室有很多空间。)
- There is not enough space in this room.(这个房间没有足够的空间。)
- 作为动词,space表示“分隔”,“留出空白”。例如:
- Please space the paragraphs correctly.(请正确分段。)
- Space the plants out evenly.(把植物均匀地分开。)
近义词:
- Gap
- Interval
- Distance
- Room
反义词:
- Crowded
- Full
- Occupied