... implemented for comparison purposes: the Centralized Tabu-Based Algorithm (CTBA) [6] and a random channel attribution method (RANDOM) We evaluate the performance of channel assignment by analyzing ... statement For small networks that not show significant variations (due to node mobility or change in the channel availability), a suitable approach for channel assignment...
Ngày tải lên: 21/06/2014, 02:20
... [14], cars act as data mules and employ a carry-and-forward paradigm to transfer data packets to a portal Finally, in [15], opportunistic data delivery is studied when both traditional routing and ... delay-tolerant applications A variety of measurements have been made recently available on the Internet [3, 26] in the form of traffic traces or contact patterns When a historical data...
Ngày tải lên: 21/06/2014, 11:20
Báo cáo hóa học: " Research Article A QoS-Aware Mesh Protocol for Future Home Networks Using Autonomic Architecture" pot
... considers channels with good quality and channel diversity in the same routing protocol THE QOS-AWARE MESH ROUTING PROTOCOL “SAM” Despite the availability of several routing protocols for ad hoc networks, ... knowledge plane (Section 2.1) (also known as signaling), and finally, the management plane carries the operations and administration traffic required to administrate the three ot...
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: " Research Article A Multievent Congestion Control Protocol for Wireless Sensor Networks" pptx
... packet Therefore, data packets are piggybacked to update buffer state When a sensor x sends out a data packet, it piggybacks its residual-buffer size in the frame header If a neighbor y overhears ... the next hop node’s transport buffer Nodes maintain a queue at the transport layer and Faisal B Hussain et al forward a single packet from it during their allocated slots Packet delivery...
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: "Research Article A Novel Distributed Privacy Paradigm for Visual Sensor Networks Based on Sharing Dynamical Systems" pptx
... or capturing the same scene at approximately the same camera orientation A security goal of each node in a cluster is to send partial visual information, which we call shares to a base station ... practicality Finally, we note that our paradigm is geared towards visual data, or any kind of data whose semantics are not destroyed by small perturbations The inherent redundant nature...
Ngày tải lên: 22/06/2014, 23:20
Báo cáo hóa học: " Vector perturbation based adaptive distributed precoding scheme with limited feedback for CoMP systems" docx
... perturbation based adaptive precoding schemes are designed by perturbing the precoding/ beamforming vectors [4-7,9,11-15] A method for applying overlaid perturbation vectors for gradient -feedback ... important for such a vector perturbation based adaptive distributed precoding scheme The selected adjustment factor for the coordinated BSs should generate a be...
Ngày tải lên: 21/06/2014, 03:20
Báo cáo hóa học: "Research Article A Diversity Guarantee and SNR Performance for Unitary Limited Feedback MIMO Systems" ppt
... precoding is the transmit array gain which is also a ected due to precoder quantization An analytical characterization of the loss in array gain due to quantization for single-stream beamforming in MISO ... transmitter for precoding For analytic tractability we consider an uncorrelated Rayleigh flat-fading MIMO channel and we let Mt , Mr , and Ms denote the number of transmit ante...
Ngày tải lên: 22/06/2014, 06:20
Báo cáo hóa học: " Research Article A Diversity Guarantee and SNR Performance for Unitary Limited Feedback MIMO Systems" potx
... precoding is the transmit array gain which is also a ected due to precoder quantization An analytical characterization of the loss in array gain due to quantization for single-stream beamforming in MISO ... transmitter for precoding For analytic tractability we consider an uncorrelated Rayleigh flat-fading MIMO channel and we let Mt , Mr , and Ms denote the number of transmit ante...
Ngày tải lên: 22/06/2014, 19:20
Báo cáo khoa học: "A Stacked Sub-Word Model for Joint Chinese Word Segmentation and Part-of-Speech Tagging" potx
... F-score performance on the test data Conclusion and Future Work This paper has described a stacked sub -word model for joint Chinese word segmentation and POS tagging We defined a sub -word structure ... 2005) In this work, stacked learning is used to acquire extended training data for sub -word tagging 3.1 Method Architecture In our stacked sub -word model...
Ngày tải lên: 17/03/2014, 00:20
Báo cáo khoa học: "A Feedback-Augmented Method for Detecting Errors in the Writing of Learners of English" docx
... cannot be used to distinguish mass and count nouns in the writing of learners of English for the purpose of detecting The paper is made of hemp pulp The underlined papers in both sentences cannot ... contains further useful information For example, we can obtain training data consisting of instances of errors by comparing the feedback corpus with its orig...
Ngày tải lên: 23/03/2014, 18:20
Báo cáo khoa học: "Argumentative Feedback: A Linguistically-motivated Term Expansion for Information Retrieval" doc
... such as a, which stands for alpha in chemistry and is relevant in biomedical expressions such as vitamin a 4.2 Argumentative categorizer The argumentative classifier ranks and categorizes abstract ... Biology Articles as a Basis for Information Extraction International Journal of Medical Informatics, to appear C Orasan 2001 Patterns in Scientific Abstracts In Proceedings of Corpus Li...
Ngày tải lên: 23/03/2014, 18:20
Báo cáo khoa học: "A Comparison of Head Transducers and Transfer for a Limited Domain Translation Application" pptx
... Selection of a word and acceptor to start an entire derivation Monolingual Relational Models We can characterize the language models used for analysis and generation in the transfer system as quantitative ... taken by a relational head acceptor m in s t a t e qi are: • Selection of a dependent word and acceptor given a head word and a dependency relation 2.2 T...
Ngày tải lên: 24/03/2014, 03:21
Báo cáo khoa học: "A Joint Model for Discovery of Aspects in Utterances" potx
... Proc of the Annual Meeting of the Association of Computational Linguistics (ACL) J Reisinger and M Pasca 2011 Fine-grained class label markup of search queries In Proc of the Annual Meeting of ... 2004 Interactive machine learning techniques for improving slu models In Proceedings of the HLT-NAACL 2004 Workshop on Spoken Language Understanding for Conversational Systems...
Ngày tải lên: 30/03/2014, 17:20
báo cáo hóa học: "Introducing a feedback training system for guided home rehabilitation" potx
... suitable for home rehabilitation training This is true for many other approaches as well [32-36] Page of 11 We therefore aimed to develop an easy to use, cheap and mobile training system that allows ... measured force values For all parameters, the mean values as well as the variances were calculated For evaluating the differences in the parameters among different groups, anal...
Ngày tải lên: 19/06/2014, 08:20
Báo cáo hóa học: " Research Article Sum Rate Optimization by Spatial Precoding for a Multiuser MIMO DFT-Precoded OFDM Uplink" ppt
Ngày tải lên: 21/06/2014, 05:20