Orange S.A.

About: Orange S.A. is a company organization based out in Paris, France. It is known for research contribution in the topics: Terminal (electronics) & Signal. The organization has 6735 authors who have published 9190 publications receiving 156440 citations. The organization is also known as: Orange SA & France Télécom.

Text language identification

Abstract: After prestoring first character strings that occur frequently in words of languages and second character strings that are a typical therein, a device for automatically identifying the language of a text from a plurality of languages extracts words from the text and constructs all of the character strings contained in each extracted word. Each string in an extracted word is compared to the first and second strings of a particular language. If the word contains a first string, a score of the language is increased by a coefficient depending in particular on the position of the first string in the word. If the word contains a second string, the score is decreased by a coefficient associated with the second string. The highest of the scores corresponding to the predetermined languages identifies the language of the text.

Method and apparatus for enhancing speech recognition accuracy by using geographic data to filter a set of words

Abstract: Enhanced speech recognition accuracy is provided by using geographic data, illustratively related to the geographic location of a mobile device, to automatically select a subset of words for use with a speech recognition procedure. The subset of words is selected from an element database including words that describe elements at each of a plurality of locations. Geographic data includes at least one of global positioning system (GPS) position data, cell identity (Cell-ID) data, caller identification (Caller ID) data, place name data, or zip code data. Elements include at least one of street names, businesses, merchants, points of interest, transportation facilities, individual households, activities, and landmarks. By selecting a subset of words, the total number of words used in the speech recognition procedure is substantially reduced, thereby improving speech recognition accuracy.

Macroscopic and microscopic effects of radiation in amorphous SiO2

Abstract: Microscopic and macroscopic changes in the a-SiO2 network induced by radiation are reviewed. In the former case, ten intrinsic network defects are identified, most having been examined structurally by electron spin resonance. The presence of the different defects is dependent upon manufacturing processes. For example, it is demonstrated that oxygen-vacancy-like and non-bridging hole center defects may be produced in a correlated manner as a result of bond scission in strained networks. Other defects, such as Si microclusters, are observed in oxygen deficient materials again resulting from preparation conditions. Macroscopic density variations ≤ 3% are induced by radiation. It is demonstrated that this densification cannot be attributed to stable defect creation and cannot be likened to pressure/temperature induced plastic densification. Analysis of refractive index, Raman scattering and infrared absorption data indicates that radiation induces a unique “structure” in which there is a substantial reduction in the mean Si-O-Si bridging bond angle (of ∼ 10°) but in which the network density is only marginally changed. This is the exact opposite of the situation observed in pressure/temperature induced plastically densified a-SiO2. We argue that the structural modification involves the creation of large voids or open spaces analagous to the cage networks found in the crystalline phases known as porosils.

Bandwidth and storage sharing performance in information centric networking

Abstract: Internet usage has dramatically evolved towards content dissemination and retrieval, whilst the underlying infrastructure remains tied up to hosts interconnection. Information centric networking (ICN) proposals have recently emerged to rethink Internet foundations and design a natively content-centric network environment.Important features of such networks are the availability of built-in network storage and of receiver-driven chunk-level transport, whose interaction significantly impacts overall system and user performance. In the paper, we provide an analytical characterization of statistical bandwidth and storage sharing, under fairly general assumption on total demand, topology, content popularity and limited network resources. A closed-form expression for average content delivery time is derived and its accuracy confirmed by event-driven simulations. Finally, we present some applications of our model, leveraging on explicit formulae for the optimal dimensioning and localization of storage resources.

Model and method for using an interactive rational agent, multiagent server and system implementing same

Abstract: The invention concerns a model and a method for using an interactive rational agent as the node of a dialogue system and/or as element (agent) of a multiagent system comprising the following steps: defining a conceptual architecture of an interactive rational agent; formal specification of the different components of said architecture and their combination enabling to obtain a formal mode; defining the software architecture implementing the formal architecture; defining mechanisms for implementing the formal specifications; the rational agent being capable thereby to communicate with another agent or a user of the system through a particular communication medium