Within the timeline-based framework, planning problems are modeled as sets of independent, but interacting, components whose behavior over time is described by a set of temporal constraints. Timeline-based planning is being used successfully in a number of complex tasks, but its theoretical properties are not so well studied. In particular, while it is known that Linear Temporal Logic (LTL) can...

When reasoning about sequences of events, English-speaking adults often invoke a “mental timeline,” stretching from left (past) to right (future). Although the direction of the timeline varies across cultures, linear representations of time are argued to be ubiquitous and primitive. On this hypothesis, we might predict that children should spontaneously invoke a timeline when reasoning about ti...

We improve the readability of a personal timeline by weaving multiple social contexts of tweets into a visualization. Our social contexts consist of three dimensions: community membership, key persons, and interesting tweets within a personal timeline. A person is often a member of several communities, such as a family, a class, or a team, simultaneously. We identify all communities that a user...

In this paper, we show how we have applied the Clinical Narrative Temporal Relation Ontology (CNTRO) and its associated temporal reasoning system (the CNTRO Timeline Library) for automatically identifying, ordering, and calculating the duration of temporal events within adverse event report narratives. The Objective of this research is to evaluate the feasibility of the CNTRO Timeline Library u...

The reader must understand that this is not a total outline of the development of physics but what I deem is the line of discoveries that leads directly to the development of atomic energy. As an example I offer thermodynamics. For this, I could develop a separate trail with some similar names such as Maxwell who besides work on electrodynamics did fundamental work on the kinetic energy of gass...

Exocytosis is essential not only for secreting proteins outside of the cell, but also for supporting cell growth (1). Secretory vesicles are delivered to the plasma membrane and tethered there for short periods before undergoing membrane fusion to release their contents. Researchers have identifi ed and characterized many of the proteins involved in these processes, but precisely when, and in w...

Speech databases lack efficient interfaces to explore information along time. We introduce an interactive timeline that helps the user in browsing an audio stream on a large time scale and recontextualize targeted information. Time can be explored at different granularities using synchronized scales. We try to take advantage of automatic transcription to generate a conceptual structure of the d...