日志时间表达式中的结束时间值必须晚于开始时间。
The ending time value must be later than the starting time for the Log Time expression.
时间表达式在自然语言处理领域有着非常广泛的应用。
Time expression has quite a lot of useful applications within natural language processing.
本文提出了一种基于启发式错误驱动学习的中文时间表达式识别的新方法。
This paper proposes a new method for recognizing Chinese time expression based on the heuristic error-driven learning.
本文所研究的时间表达式识别，就是命名实体识别领域一项基础而重要的任务。
In this dissertation, it will focus on time expression recognition, which is one of the most important directions within named entity recognition research area.
时间表达式识别技术主要分为两类：基于机器学习的序列标注方法和基于规则的方法。
There are two main technologies in time expression recognition:sequence labeling method based on machine learning theory and rule-based method.
时间表达式识别是进行时间表达式归一化的基础，其识别结果的好坏直接影响归一化的效果。
Recognizing time expressions is the foundation of its normalization, and its performance directly influences the robustness of the normalization.
文摘：利用马尔可夫过程给出了串联可修系统各状态的不可用度表达式及平均修复时间表达式。
Abstract: In this paper, Formula of MTTR( meam time to repair) and unavailability of every states for series repairable system are given using Markov processes.
利用由雪耙模型导出的Z箍缩聚爆时间表达式，并结合“强光一号”Z箍缩实验结果，修正了由一维等熵气体动力学得到的喷嘴气流线质量表达式。
Combining the data of gas puff Z pinch experiments on Qiangguang I generator, the expression of the line mass is obtained using the implosion time expression which is deduced from snow-plow model.
首先简要讨论时间表达式的描述；然后提出有关时态模式和时态关联规则的若干定义；最后讨论时态数据挖掘语言(TDML)的描述并给出一个实例。
In this paper, the description of time expressions, the definition of temporal patterns and temporal association rules, and the description of the temporal data mining language (TDML) are presented.
这种新的ROWCHANGETIMESTAMP表达式返回的时间戳表示最后一次进行行修改的时间，使用类似于CURRENT TIMESTAMP的本地时间表示。
This new row change timestamp expression returns a timestamp representing the time when a row was last changed, expressed in local time similar to CURRENT timestamp.
这种新的ROWCHANGETIMESTAMP表达式返回的时间戳表示最后一次进行行修改的时间，使用类似于CURRENT TIMESTAMP的本地时间表示。
This new row change timestamp expression returns a timestamp representing the time when a row was last changed, expressed in local time similar to CURRENT timestamp.
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