This paper presents a new strategy to form P2P IP Telephony overlay for wireless ad-hoc networks. In the proposed strategy a structured P2P system is considered where some nodes, called supernodes, with higher capacity form the overlay and provide registry and call routing services. As selection and admission of new super-nodes in wireless ad-hoc networks is more challenging than backbone netwo...

In this paper we investigate how to construct a shape space for sets of shock trees. To do this we construct a super-tree to span the union of the set of shock trees. This super-tree is constructed so that it both minimizes the total tree edit distance and preserves edge consistency constraints. Each node of the super-tree corresponds to a dimension of the pattern space. Individual such trees a...

Wireless sensor nodes are use most embedded computing application. Multihop cluster hierarchy has been presented for large wireless sensor networks (WSNs) that can provide scalable routing, data aggregation, and querying. The energy consumption rate for sensors in a WSN varies greatly based on the protocols the sensors use for communications. In this paper we present a cluster based routing alg...

Super resolution is one of the commonly referred inference problems in computer vision. In the case of images, this problem is generally addressed using a graphical model framework wherein each node represents a portion of the image and the edges between the nodes represent the statistical dependencies. However, the large dimensionality of images along with the large number of possible states f...

BACKGROUND Therapeutic lateral compartment neck dissection is recommended for cases of papillary thyroid carcinoma with biopsy-proven lymph node metastasis. The purpose of this study was to evaluate the efficacy and safety of super-selective neck dissection for patients with clinically suspicious lymph node metastasis not confirmed by biopsy. METHODS Among 620 patients treated for papillary t...

This paper places the optimal tree ranking problem in N C. A ranking is a labeling of the nodes with natural numbers such that if nodes u and v have the same label then there exists another node with a greater label on the path between them. An optimal ranking is a ranking in which the largest label assigned to any node is as small as possible among all rankings. An O(n) sequential algorithm is...

Attendees were welcomed to the Workshop by Frans Kaashoek and Peter Druschel who reported that although the original plan had been to invite 35 people to a 1 1 2 day event, 99 papers had been submitted. The workshop had therefore been scaled up to 50 authors with 32 position papers, 26 of which would be presented over a two day program. Scott Shenker gave a brief overview of the problem space, ...

Devices in a beacon-enabled network use slotted CSMA/CA to contend for channel usage. Each node in the network competes for the channels when ready to transmit data. The slotted CSMA/CA mechanism based on the super-frame structure fairly provides communication chance for each node and makes a reasonable usage of the available energy in beacon-enabled Zigbee networks. When wireless nano-sensor n...

The recent years have seen an enormous advance in wireless communication technology and co-existence of various types of wireless networks, which requires effective inter-networking among the heterogeneous wireless networks in order to support user roaming over the networks while maintaining the connectivity. One of main challenges to achieve the connectivity over heterogeneous wireless network...

Learning based super-resolution can recover high resolution image with high quality. However, building an interactive learning based super-resolution system for general images is extremely challenging. In this paper, we proposed a novel GPU-based Interactive Super-Resolution system through Neighbor Embedding (ISRNE). Random projection tree (RPtree) with manifold sampling is employed to reduce t...