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Duration modeling with hidden Markov models

L. F. M. ten Bosch, X. Wang, L. C. W. Pols
1993 Journal of the Acoustical Society of America  
The major cause of ambient noise in the Arctic Ocean is radiation from the fracture of sea ice in response to environmental forcing.  ...  Such measurements should provide a basis for comparison with models for the fracture of heterogeneous materials. l:S0 lpAO3. Oceanographic inferences from ambient noise in the marginal ice zone.  ...  Such observations provide a source description that might have application in ambient noise model development.  ... 
doi:10.1121/1.407916 fatcat:6oae5i4nxva63mnleko5dr3acm

Voronoi polygons and self-consistent technique used to compute the airflow resistivity of randomly placed fibers in glass wool

Viggo Tarnow
2002 Journal of the Acoustical Society of America  
An empirical model for the frequency spectrum of surface pressure fluctuations.  ...  A comparison of algorithms and the development of a new fast convergence and reduced computational load algorithm for multichannel active noise control.  ...  Also, the modal continuum is treated more realistically through the employment of a leaky mode decomposition.  ... 
doi:10.1121/1.4809175 fatcat:jqxtrgkn2fcf3a7vzsp2u56akm

Neural network modeling of a dolphin's sonar discrimination capabilities

Lars N. Andersen, A. René Rasmussen, Whitlow W. L. Au, Paul E. Nachtigall, Herbert Roitblat
1994 Journal of the Acoustical Society of America  
the shell.  ...  The sound field scattered by a smooth thin elastic shell immersed in fluid arises largely from specular reflection and acoustic-membrane coupling, unless both source and observer are located near or on  ...  provide considerable insight into the likely source mechanisms for ocean ambient noise.10:05 2aAO9.  ... 
doi:10.1121/1.410770 fatcat:ioiiov6bmjdi7kiflait5dhdfe

Neural network modeling of a dolphin's sonar discrimination capabilities

Whitlow W. L. Au, Lars N. Andersen, A. René Rasmussen, Herbert L. Roitblat, Paul E. Nachtigall
1995 Journal of the Acoustical Society of America  
the shell.  ...  The sound field scattered by a smooth thin elastic shell immersed in fluid arises largely from specular reflection and acoustic-membrane coupling, unless both source and observer are located near or on  ...  provide considerable insight into the likely source mechanisms for ocean ambient noise.10:05 2aAO9.  ... 
doi:10.1121/1.413700 pmid:7608403 fatcat:m3nunzs4wfflhfl27n4shdn2n4

Influence of statistical surface models on dynamic scattering of high‐frequency signals from the ocean surface

Christian Bjerrum‐Niese, Leif Bjo/rno/
1994 Journal of the Acoustical Society of America  
the shell.  ...  The sound field scattered by a smooth thin elastic shell immersed in fluid arises largely from specular reflection and acoustic-membrane coupling, unless both source and observer are located near or on  ...  provide considerable insight into the likely source mechanisms for ocean ambient noise.10:05 2aAO9.  ... 
doi:10.1121/1.411137 fatcat:ajwj7bozxzg6fd27v4xe57drgm

A coupled bispectral, temporal and spatial coherence function of the pressure field, scattered from a moving sea surface

Christian Bjerrum‐Niese, Leif Bjo/rno/
1995 Journal of the Acoustical Society of America  
The Chairs of the U.S. Technical Advisory Groups for ISO/TC 43 (P. D. Schomer), IEC/TC 29 (V. Nedzelnitsky), and ISO/'rc 108/SC4 (H.  ...  Work in progress includes measurement of noise sources, noise dosimeters, integrating sound-level meters, and revision and extension of sound level meter specifications.  ...  Simulation results have shown that the proposed compression algorithm is simple and applicable for not only the wideband 10:05 2aNS4. Active control of axial-flow fan noise. John R.  ... 
doi:10.1121/1.414267 fatcat:gtdrkztuvfbova3a4rdj2f7umu

A Review of Vibration-based Structural Health Monitoring with Special Emphasis on Composite Materials

D. Montalvao
2006 The Shock and vibration digest  
have currently a wide range of engineering applications.  ...  The need for detecting damage in complex structures has led to the development of a vast amount of techniques, in particular those based upon structural vibration analysis.  ...  The HHT makes an Empirical Mode Decomposition (EMD) of the time signal into narrow band components with zero mean, in which each component is called an Intrinsic Mode Function (IMF).  ... 
doi:10.1177/0583102406065898 fatcat:cpo5laltkrdyngvekhxholoiaq

Calculation of the A term of magnetic circular dichroism based on time dependent-density functional theory I. Formulation and implementation

Michael Seth, Tom Ziegler, Arup Banerjee, Jochen Autschbach, Stan J. A. van Gisbergen, Evert J. Baerends
2004 Journal of Chemical Physics  
to a range of acceptable values that can vary with the ambient noise level.  ...  Recently, the application domains of two widely used methods, the SII and the STI, have been significantly extended.  ...  The potential application of GF-PE to verify algorithms for outdoor propagation is indicated.  ... 
doi:10.1063/1.1747828 pmid:15268124 fatcat:hwyfald5a5f4njmw5h7p6vjhnu

Anisotropy and sound propagation in glass wool

Viggo Tarnow
1999 Journal of the Acoustical Society of America  
In this seminar the MAP estimator is described, along with practical issues associated with algorithm initialization, simulated performance with both white and colored-noise inputs, and real data examples  ...  The data model is guided by the measurement physics and the scene model is based on a Markov random field assumption. Both models are augmented to accommodate anomalies.  ...  The runningnoise thresholds were expected to be higher than the frozen-noise thresholds because of interaural correlation uncertainty of the masker intervals for running-noise conditions.  ... 
doi:10.1121/1.426652 fatcat:qfdzx3idfnamngq5rduzjj5qh4

Special issue on information reuse and integration

2007 IEEE Transactions on Systems Man and Cybernetics Part B (Cybernetics)  
Learners were evaluated using analysis of variance models based on their performance as the level of injected noise, the number of attributes with noise, and the percentage of minority instances containing  ...  In this study, we identify learners (from a total of 11 classification algorithms) with robust performance in the presence of low quality imbalanced measurement data.  ...  Acknowledgement We wish to thank the Overview Editor, Dr. Maria Ganzha, for her consideration of this paper.  ... 
doi:10.1109/tsmcb.2007.912701 fatcat:xvhlaf4m3vhcdb2cicqtfrug6m

Sensor Networks for High-Confidence Cyber-Physical Systems

Feng Xia, Tridib Mukherjee, Yan Zhang, Ye-Qiong Song
2011 International Journal of Distributed Sensor Networks  
A no-regret learning algorithm for reducing the effect of the interuser interference with low power consumption is proposed.  ...  On the other hand, the unique features of CPS (e.g., cyber-physical coupling driven by new demands and applications) give rise to a lot of open challenges for design and deployment of sensor networks in  ...  Apart from this, the European Commission has no responsibility for the content of this paper.  ... 
doi:10.1155/2011/245734 fatcat:lswungc2orda5pcqvpyqu7vrna

A comparison of two EIT systems suitable for imaging impedance changes in epilepsy

L Fabrizi, A McEwan, T Oh, E J Woo, D S Holder
2009 Physiological Measurement  
time for the same signal-to-noise ratio.  ...  at the heart of Nachman's algorithm.  ...  Acknowledgments This work is supported in part by CenSSIS, the Center for Subsurface Sensing and Imaging Systems, under the Engineering Research Centers Program of the National Science Foundation (Award  ... 
doi:10.1088/0967-3334/30/6/s07 pmid:19491447 fatcat:nzeetw52ofaslcwhd2kxylvlpu

An Introduction to Sensor Data Analytics [chapter]

Charu C. Aggarwal
2012 Managing and Mining Sensor Data  
It uses models for detecting abnormal data values. The anomaly detector works in online as well as offline mode.  ...  In the offline mode, the data is cleaned periodically, for instance, once per day. In the following subsections, we will review popular models used for online anomaly detection.  ...  The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Laboratory  ... 
doi:10.1007/978-1-4614-6309-2_1 fatcat:pfbx566yfzgqpnjcuzonmxr23q

An Evolutionary Game-Based Mechanism for Routing P2P Network Flow among Selfish Peers

Fang Zuo, Wei Zhang
2014 Journal of Networks  
Telecommunication networks need to support a wide range of services and functionalities with capability of autonomy, scalability and adaptability for managing applications to meet business needs.  ...  The DAIM model can provide richness of nature-inspired adaptation algorithms on a complex distributed computing environment.  ...  Case for Implementation We take the application of data aggregation in ambient temperature detection as an example, to explain the working process of self-adaptive weighted algorithm.  ... 
doi:10.4304/jnw.9.01.10-17 fatcat:tbmafdamk5am7a6ba26gsxzydq

III Advanced Topics [chapter]

2016 Soft Computing Applications in Sensor Networks  
In the above algorithm, α is the learning parameter and is a constant de cided by some empirical studies. Note: The training perceptron algorithm is based on supervisory learn ing techniques.  ...  In the processing of de veloping procedures which are energy efficient for WSNs, there is benefit from use of neural networks.  ...  According to the CP update algorithm, the BNC must decrease the CP threshold and include the updated value in the next CP packet.  ... 
doi:10.1201/9781315372020-13 fatcat:ze5voikcfbfi5lubz5t5oismua
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