Raytheon BBN Technologies

Displaying 1-6 of 6 results

  • White Papers // Feb 2012

    Preserving Quality of Information by Using Semantic Relationships

    The authors show how semantic relationships that exist within an information-rich source can be exploited for achieving parsimonious communication between a pair of semantically-aware nodes that preserves quality of information. They extend the source coding theorem of classical information theory to encompass semantics in the source and show that by...

    Provided By Raytheon BBN Technologies

  • White Papers // Feb 2012

    Analyzing Collaboration Networks Using Simplicial Complexes: A Case Study

    Collaboration social networks are traditionally modeled using graphs that capture pairwise relationships but have ambiguity between group collaborations and multiple pairwise collaborations. The authors present a new approach to analyzing collaboration networks using simplicial complexes to represent the co-authorship collaborations. They formally define several key novel metrics: higher dimensional analogs...

    Provided By Raytheon BBN Technologies

  • White Papers // Jan 2012

    Multiple Random Walks to Uncover Short Paths in Power Law Networks

    Developing simple distributed algorithms to allow nodes to perform topology discovery and message routing using incomplete topological information is a problem of great interest in network science. Consider the following routing problem in the context of a large power law network G. A small number of nodes want to exchange...

    Provided By Raytheon BBN Technologies

  • White Papers // Apr 2011

    Maintaining Temporal Perspective

    The authors present methods for annotating data with the time when it was learned and for answering queries according to what was known at any point in time. Specifically, they present an RDF knowledge representation that associates facts with their transaction times, and a query mechanism that transforms a time-agnostic...

    Provided By Raytheon BBN Technologies

  • White Papers // Aug 2010

    Effect of Limited Topology Knowledge on Opportunistic Forwarding in Ad Hoc Wireless Networks

    Opportunistic forwarding is a simple scheme for packet routing in ad hoc wireless networks such as duty cycling sensor networks in which reducing energy consumption is a principal goal. While it is simple and can be analytically characterized, it suffers from a high end-to-end latency. In this paper, the authors...

    Provided By Raytheon BBN Technologies

  • White Papers // May 2010

    On the Universal Generation of Mobility Models

    Mobility models have traditionally been tailored to specific application domains such as human, military, or ad hoc transportation scenarios. This tailored approach often renders a mobility model useless when the application domain changes. Furthermore, the failure to adapt the mobility model to accurately match the new domain naturally leads to...

    Provided By Raytheon BBN Technologies

  • White Papers // Apr 2011

    Maintaining Temporal Perspective

    The authors present methods for annotating data with the time when it was learned and for answering queries according to what was known at any point in time. Specifically, they present an RDF knowledge representation that associates facts with their transaction times, and a query mechanism that transforms a time-agnostic...

    Provided By Raytheon BBN Technologies

  • White Papers // May 2010

    On the Universal Generation of Mobility Models

    Mobility models have traditionally been tailored to specific application domains such as human, military, or ad hoc transportation scenarios. This tailored approach often renders a mobility model useless when the application domain changes. Furthermore, the failure to adapt the mobility model to accurately match the new domain naturally leads to...

    Provided By Raytheon BBN Technologies

  • White Papers // Aug 2010

    Effect of Limited Topology Knowledge on Opportunistic Forwarding in Ad Hoc Wireless Networks

    Opportunistic forwarding is a simple scheme for packet routing in ad hoc wireless networks such as duty cycling sensor networks in which reducing energy consumption is a principal goal. While it is simple and can be analytically characterized, it suffers from a high end-to-end latency. In this paper, the authors...

    Provided By Raytheon BBN Technologies

  • White Papers // Feb 2012

    Analyzing Collaboration Networks Using Simplicial Complexes: A Case Study

    Collaboration social networks are traditionally modeled using graphs that capture pairwise relationships but have ambiguity between group collaborations and multiple pairwise collaborations. The authors present a new approach to analyzing collaboration networks using simplicial complexes to represent the co-authorship collaborations. They formally define several key novel metrics: higher dimensional analogs...

    Provided By Raytheon BBN Technologies

  • White Papers // Jan 2012

    Multiple Random Walks to Uncover Short Paths in Power Law Networks

    Developing simple distributed algorithms to allow nodes to perform topology discovery and message routing using incomplete topological information is a problem of great interest in network science. Consider the following routing problem in the context of a large power law network G. A small number of nodes want to exchange...

    Provided By Raytheon BBN Technologies

  • White Papers // Feb 2012

    Preserving Quality of Information by Using Semantic Relationships

    The authors show how semantic relationships that exist within an information-rich source can be exploited for achieving parsimonious communication between a pair of semantically-aware nodes that preserves quality of information. They extend the source coding theorem of classical information theory to encompass semantics in the source and show that by...

    Provided By Raytheon BBN Technologies