Unverified50% confidenceFactExact time
OntoGr's dual timeline distinguishes valid time from system time, allowing queries of the truth of facts by valid time or of what the system believed at the time by system time.
1
Sources
50%
Confidence
Long-term
Relevance
10/27/2026
First Seen
Sources
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Related Claims
UnverifiedPoint-in-Time（PIT）数据系统需要对每个数据点同时记录事件发生时间和数据可知时间两个时间戳72% similarUnverifiedTemporal History requires the system to record the fact itself as well as the fact's valid time interval and write time, corresponding to bitemporal modeling in databases.69% similarUnverifiedTime-sensitive judgments should trust only a single time source (usually the database's now()), or use a monotonic clock rather than the wall clock to measure time intervals.69% similarUnverifiedTiming Awareness refers to the system's ability to make real-time judgments about the user's current situation, cognitive load, and task stage.67% similarUnverifiedEvent timestamps record the moment something actually happens, while processing timestamps record the moment the system receives it; inventory-type applications usually rely on event timestamps and set a reasonable time window to tolerate out-of-order arrival.66% similar
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