Fuzzy Dates in Personal Knowledge Graphs and Dialogue, the Example of “LifeLine”

Dates are often treated as exact measures, yet their precision is limited. This applies not only to physical clocks but also to human memory. In conversations, we typically share timeframes relevant to the topic, not pinpoint accuracy. Precise birth times, for example, hold little conversational value compared to their biographical significance. Similarly, couples cherish their wedding day but might recall only the year they bought their house. This paper explores the advantages of incorporating fuzzy dates into personal knowledge graphs constructed through dialogues within the LifeLine feature of the “my eViTA” smartphone app. Fuzzy dates acknowledge the inherent imprecision of human memory and prioritize contextually relevant timeframes for a more natural and insightful knowledge representation.