Concept

Time geography

Related publications (18)

TOQL: Temporal Ontology Querying Language

We introduce TOQL, a query language for querying time information in ontologies. TOQL is a high level query language that handles ontologies almost like relational databases. Queries are issued as SQL-like statements involving time (i.e., time points or in ...

2009

Rencontre de la science de l'information géographique et de l'anthropologie culturelle

Abram Pointet

Geographical Information Science and Cultural Anthropology are aimed to collaborate on development projects dedicated to indigenous communities. This fact is first based on a growing intention to integrate the reality and the perception of the development ...

EPFL2007

Distributed Recursive Least-Squares Strategies Over Adaptive Networks

Ali H. Sayed

A distributed least-squares estimation strategy is developed by appealing to collaboration techniques that exploit the space-time structure of the data, achieving an exact recursive solution that is fully distributed. Each node is allowed to communicate wi ...

IEEE2006

Power spectra of random spikes and related complex signals

Andrea Ridolfi

"Random spikes" belong to the common language used by engineers, physicists and biologists to describe events associated with time records, locations in space, or more generally, space-time events. Indeed, data and signals consisting of, or structured by, ...

EPFL2005

HMM/ANN Based Spectral Peak Location Estimation for Noise Robust Speech Recognition

Hervé Bourlard, Shajith Ikbal

In this paper, we present a HMM/ANN based algorithm to estimate the spectral peak locations. This algorithm makes use of distinct time-frequency (TF) patterns in the spectrogram for estimating the peak locations. Such an use of TF patterns is expected to i ...

IDIAP2004

Topological defects and gravity in theories with extra dimensions

Ewald Rössl

Recent proposals of large and infinite extra dimensions triggered a strong research activity in theories in which our universe is considered as a sub-manifold of some higher-dimensional space-time, a so-called 3-brane. In this context, it is generally assu ...

EPFL2004

The Geometry of Time-Stepping

Claudio Mattiussi

The space-time geometric structure of Maxwell’s equations is examined and a subset of them is found to define a pair of exact discrete time-stepping relations. The desirability of adopting an approach to the discretization of electromagnetic problems which ...

2001

Spatial Data Standards in View of Models of Space and the FunctionsOperating on Them

A new architecture for GIS is presented based on a systems view of geographical space as it is popular in geography. Starting with concepts of spatial modelling, current GIS standards are examined for their suitability to support different modelling concep ...

1999

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