東京大学 情報理工学系研究科 創造情報学専攻 2021年8月実施 筆記試験 第3問

标签：

• Tokyo-University
• Moore-Penrose-Pseudoinverse

Author

itsuitsuki

Description

Select four items out of the following eight items concerning information systems, and explain each item in approximately from four to eight lines of text. If necessary, use examples or figures.

1. Cellular automaton
2. Clock frequency
3. The method of surrogate data
4. Pseudo-inverse matrix
5. Recurrent neural network
6. Kullback-Leibler divergence
7. Homography transformation
8. Passive Walking

题目描述

从下列八个信息系统相关主题中任选四个，每个用约 4～8 行说明；必要时可使用示例或图。

1. 元胞自动机。
2. 时钟频率。
3. 替代数据法。
4. 伪逆矩阵。
5. 循环神经网络。
6. Kullback–Leibler 散度。
7. 单应变换。
8. 被动行走。

Kai

Clock frequency

Pseudo-inverse matrix

Recurrent neural network

Kullback-Leibler divergence

Homography transformation A transformation of a 2D point into another 2D point, where the point is a projected 3D point in one perspective projection plane, and the transformed point is in another perspective projection plane. The homography transformation is conducted by a matrix $H$ s.t. $[wx'~wy'~w]^T=H[x~y~1]^T$, where $H$ has 8 DoFs with zooming ($w$).