Mobile node localization is one of the key technologies in wireless sensor network applications. Aiming at shortcomings Monte Carlo algorithm (MCL) mobile nonideal environments, such as low accuracy and sampling rate, prediction phase filtering MCL, communication radius unknown determined according to size irregularity node. Perform layering, assign adaptive weights anchor nodes different layer...

The traditional DV-Hop sensor location algorithm estimates the distance between unknown nodes and anchor nodes by hop distance instead of straight-line distance. In the actual location condition, unknown nodes and anchor nodes mostly connect to each other through broken line. When the deviation of the estimated value and the actual value of average distance per hop is large, the error of estima...

In wireless networks, system survivability is one of the most important issues in providing quality of service (QoS). However, since failure of home agent (HA) or mobile anchor point (MAP) causes service interruption, the Hierarchical Mobile IPv6 (HMIPv6) has only weak survivability. In this paper, we propose Robust Hierarchical Mobile IPv6 (RH-MIPv6), which provides fault tolerance and robustn...

Mobile IPv6 enables mobile node to roam transparently in any network. It shows good performance for macro mobility but it is not proper for supporting micro mobility because of large latency. Accordingly, IETF (Internet Engineering Task Force) mobileip WG(Working Group) suggests Fast Handover Protocol and HMIPv6(Hierarchical Mobile IPv6) for micro mobility management. However, HMIPv6 has some p...

We address the problem of localising a mobile terrminal (“blind” node) in unknown position from a set of “anchor” nodes in known positions. The proposed method does not require any form of node synchronisation nor measurement (or control) of the transmission times, which is difficult or anyway costly to achieve in practice. It relies exclusively on reception timestamps collected by the anchor n...

In anchor modeling, each speaker utterance is represented as a fixed-length location vector in the space of reference speakers by scoring against a set of anchor models. SVMbased speaker verification systems using the anchor location representation have been studied in previously reported work with promising results. In this paper, linear combination weights in reference speaker weighting (RSW)...

In general, building and validating a certification path connecting a trust anchor to a target can be a very timeconsuming process. As such, any optimizations are valuable. Certification paths are commonly built from the target to the trust anchor (“building in the forward direction”) or from the trust anchor to the target (“building in the reverse direction”). This paper presents a comparison ...

Associating anchor text with pages, to which links are pointing, is a well-known approach to improve retrieval quality. It was used in the first version of Google [Brin and Page 1998]. On one hand, using the anchor text alone allows one to obtain a system with decent performance [Anh and Moffat 2010; Hiemstra and Hauff 2010]. We also know that the anchor text is a strong relevance signal from o...

Sign language is used by many people who were born deaf or who became deaf early in life as their first and/or preferred language. There is no writing system for sign languages; texts are signed on video. As a consequence, texts in sign language are hard to navigate, search and annotate. The BiBiKit project is an easy to use authoring kit which is being developed and enables students, teachers,...