Abstract:
The system comprises: a IP access network connected to a NGN/IMS subsystem and being part of an Internet subsystem; an internet user terminal (UE) connected to said IP access network to communicate with said NGN/IMS subsystem; and. a control and media gateway (0) interconnecting said IP access network and said NGN/IMS subsystem for translating signal and media data flows from the NGN/IMS network, in a NGN/IMS protocol, to said IP access network, into a HTTP or HTTPS protocol, and vice versa. The method comprises using the communication system provided by the invention.
Abstract:
The method comprises: generating a set of cost functions for foreground, background and shadow segmentation classes or models, where the background and shadow segmentation costs are based on chromatic distortion and brightness and colour distortion; and applying to the pixels of an image said set of generated cost functions; The method further comprises, in addition to a local modelling of foreground, background and shadow classes carried out by said cost functions, exploiting the spatial structure of content of at least said image in a local as well as more global manner; this is done such that local spatial structure is exploited by estimating pixels' costs as an average over homogeneous colour regions, and global spatial structure is exploited by the use of a regularization optimization algorithm.The system is adapted to implement at least part of the method.
Abstract:
The method comprises modelling a delay-tolerant dynamic network comprising time-varying links transforming it into a static time-expanded network graph, and managing bulk data transfer on the basis of said static time-expanded network graph.The device comprises a scheduler unit with processing capabilities implementing an algorithm which processes arc costs (cijt) and storage costs (pit) as per the method of the first aspect of the invention.
Abstract:
The invention relates to a system for generating unpredictable pseudorandom numbers in a chaotic manner, comprising discrete chaotic map processing means and an XOR gate for generating unpredictable pseudorandom numbers. The method is based on introducing a high degree of entropy in the system by cyclically shifting chaotic maps to the right.
Abstract:
The method and system for synchronizing social networks and Personal Contact Cards (PCC) update the profile of a user published in an Open Mobile Alliance Converged Address Book (OMA CAB) system with the information published and updated on one or more social networks to which the user subscribes, by means of synchronization by polling or synchronization by subscription/notification. To do so, the user sends prior authorization to access the user profile published in the social network to a telecommunication services provider operating the OMA CAB system.
Abstract:
A system and a method in which a user makes a service request with a service provider through a data network. The service provider receives from trust generating equipment, located in an access provider, an assessment of the security level of the user; said equipment in turn receiving a delivery of information about the trust level provided by said user; and in order for the aforementioned equipment to collect information about the user identity, the network traffic generated by the user, the security status of the user device and the geographical location of the user device, this information being analyzed and summarized in a trust label which is sent to the service provider.
Abstract:
The present invention relates to a method for distributing routing information for redundant connection. The method is implemented in hierarchical IPv6 Internet protocol (IP) networks comprising a plurality of different autonomous systems (AS) which use a border gateway routing protocol (BGP-4) to communicate, which protocol does not allow routing sessions to be established automatically, which prevents multi-provider services from being created. The method of the invention makes it possible to create multi-provider services in the networks discussed above by using the BGP-4 protocol established by the current standards and technologies. This makes it possible to increase services offered by the providers.
Abstract:
Method for an automatic identification of urban dense areas from cell phones records, by using a computing device that receives as inputs: a geographical region R, a time period Δt for which dense areas in the region R need to be computed, a set of BTSs in the region R, a set of CDRs generated by individuals during the time period Δt using the set of BTSs of the region R, a coverage C and a granularity ε. The method includes constructing a graph G=(V , E), being V=vertexes and E=edges, using Delaunay triangulation, where each vertex v1 of V corresponds to btsi of BTS in the geographical region R, and each edge ei,j of E represents connection between btsi and btsj; eliminating from E all the edges in E with a distance between two connecting BTS larger than ε, so that a desired spatial granularity is ensured; associating a weight wi,j to each edge ei,j of E that has not been eliminated, the weight representing the average density of the area covered by btsi and btsj during the time period Δt ; constructing a data structure L that contains the dense areas using the edges of E; and applying a “Maximum Spanning Tree” type algorithm to detect dense areas given by the data structure L.
Abstract:
The present Invention relates to a method and to a system for identifying and characterizing the impact of network incidents on the telecommunication services offered to users. According to the invention, the system for identifying and characterizing an incident in a service offered to a user of a telecommunications network comprises an unavailability selection module (1), a consolidation module (4), an aggregation module (10), a stabilization module (12) and a notification module (14).
Abstract:
It comprises analyzing audio content of multimedia files and performing a speech to text transcription thereof automatically by means of an ASR process, and selecting acoustic and language models adapted for the ASR process at least before the latter processes the multimedia file, i.e. “a priori”.The method is particularly applicable to the automatic indexing, aggregation and clustering of news from different sources and from different types of files, including text, audio and audiovisual documents without any manual annotation.