epoch
英语[编辑]
其他形式[编辑]
- epocha （17th–19th c.）
词源[编辑]
源自中世纪拉丁语 epocha，源自古希腊语 ἐποχή (epokhḗ, “停止，中止，暂停；行星达到最高点时的停顿；历史的时期”)，源自ἐπέχω (epékhō, “压抑，停止”)，源自ἐπι- (epi-, “之上”) + ἔχω (ékhō, “有，拿着”)。
发音[编辑]
名词[编辑]
epoch (复数 epochs)
- 时代，时期
- 2012 January, Donald Worster, “A Drier and Hotter Future”, 出自 American Scientist[1], 卷 100, 期 1，页号 70:
- Phoenix and Lubbock are both caught in severe drought, and it is going to get much worse. We may see many such [dust] storms in the decades ahead, along with species extinctions, radical disturbance of ecosystems, and intensified social conflict over land and water. Welcome to the Anthropocene, the epoch when humans have become a major geological and climatic force.
- （请为本引文添加中文翻译）
- 纪元的开始
- (天文学) 参照时间点
- (计算机) 参照时间（如UTC 1970年1月1日00:00:00）
- (计算机) 迭代式机器学习算法所产生的一个完整数据集表示；代
- The neural network was trained over 500 epochs.
- 神经网络已经训练超过500代了。
- (地质学) 世，纪（将地质时间划分为小段的时间单位）
相关词汇[编辑]
动词[编辑]
epoch (第三人称单数简单现在时 epochs，现在分词 epoching，一般过去时及过去分词 epoched)
- (科学，及物) 根据时间将...划分为小段
- 2015 7月 6, “Stronger Neural Modulation by Visual Motion Intensity in Autism Spectrum Disorders”, 出自 PLOS ONE[2], :
- The continuous data were epoched into segments of 1500 ms (starting 500 ms before visual stimulus onset), time-locked to stimulus onset (0 ms) and sorted according to experimental conditions.
- （请为本引文添加中文翻译）
延伸阅读[编辑]
- “epoch”, Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, OCLC 800618302
- “epoch”, The Century Dictionary […], New York, N.Y.: The Century Co., 1911, OCLC 867766587
- OneLook 在线词典 上有关 epoch 的释义