EgoIT-99K来源数据的处理

感谢贵团队开源的数据

我注意到EgoIT-99K来源的数据里，video_name里有__interval__xxxxx这样的字段，这些在EgoIT-99K原始数据里没有，是需要经过处理吗？有的一个video还会对应多个哈希值，例如
- `P12_01__P12_01_long_10_0__interval__75ada454be04ce0a.mp4`
- `P12_01__P12_01_long_10_0__interval__cb179a05e0abf9de.mp4`

Start with the EgoIT-99K original data and the two P12_01 video_name examples given in the issue. Trace how these names are produced or processed, and determine whether the interval suffixes and multiple hashes are expected; done when their origin and purpose are clearly documented.

Written by the indexing model from the issue text.