Filters








16,844 Hits in 4.3 sec

Noise-tolerance feasibility for restricted-domain Information Retrieval systems

Katia Vila, Antonio Fernández, José M. Gómez, Antonio Ferrández, Josval Díaz
2013 Data & Knowledge Engineering  
This paper devises an approach which adds noise-tolerance to Information Retrieval systems.  ...  However, noise becomes a serious problem in restricted-domain Information Retrieval specially when the corpus is small and has little or no redundancy.  ...  for adding noise-tolerance to an IR system.  ... 
doi:10.1016/j.datak.2013.02.002 fatcat:5qiigpswgvdj3kclovovnqmsaq

Sensor Integration In Associative Visual Structures

F. Ancona, G. Parodi, R. Zunino
1996 Zenodo  
, thanks to their generalization properties, although training complexity and theoretical bounds often restrict the dimensionality of the application domain.  ...  INTRODUCTION The paper describes an integrated system that combines an Associative Memory (AM) [1] with a Neural Network (NN) [2] to exploit the benefits of both approaches.  ... 
doi:10.5281/zenodo.36051 fatcat:bmc26ef55bbmrgqnkxlwdycsoy

Capacity, Fidelity, and Noise Tolerance of Associative Spatial-Temporal Memories Based on Memristive Neuromorphic Networks

Dmitri Gavrilov, Dmitri Strukov, Konstantin K. Likharev
2018 Frontiers in Neuroscience  
(e.g., memristors), though the input noise immunity of the CrossNet memories is lower.  ...  We have calculated key characteristics of associative (content-addressable) spatial-temporal memories based on neuromorphic networks with restricted connectivity-"CrossNets."  ...  ACKNOWLEDGMENTS The authors are grateful to E. A. Feinberg for stimulating discussions, and to reviewers for useful remarks.  ... 
doi:10.3389/fnins.2018.00195 pmid:29643761 pmcid:PMC5883079 fatcat:gjhvo4fb7ngs7kkdisvggjngtu

Interferometric redatuming by sparse inversion

Joost van der Neut, Felix J. Herrmann
2012 Geophysical Journal International  
By exploiting compressibility of seismic wavefields in the curvelet domain, the method not only becomes robust with respect to noise but we are also able to remove certain artefacts while preserving the  ...  While this method works in theory, sensitivity to noise and artefacts due to incomplete acquisition require a different formulation.  ...  (h) Common-source gather of the upgoing field at source 65, retrieved by sparse inversion. Gaussian noise has been added to the input data. (i) Same, in the frequency-wavenumber domain.  ... 
doi:10.1093/gji/ggs052 fatcat:svr5xkxelbbd5b6jbxxq3cf4by

Knowledge base Construction using Hidden Web Retrieval Technique

Shrina Patel, Amit Ganatar
2015 International Journal of Computer Applications  
Relations of algorithms for hidden web-focused information retrieval develop with it.  ...  Hence the page has to be split into measurement and these parts examined separately for the results to be more precise.  ...  For innovative effort an smart agent technology is familiarized in that work for retrieving supplementary and more relevant information in directive to growth both precision and recall.  ... 
doi:10.5120/20025-2078 fatcat:lyvyso2fnnd7nbne2adelnyvkq

Comparative study of digital audio steganography techniques

Fatiha Djebbar, Beghdad Ayad, Karim Abed Meraim, Habib Hamam
2012 EURASIP Journal on Audio, Speech, and Music Processing  
The goal of steganographic systems is to obtain secure and robust way to conceal high rate of secret data.  ...  FD and BA were responsible for writing the study protocol and drafting the manuscript. KAM and HH provided comments on the drafts. All authors have read and approved the final manuscript.  ...  Overall steganalysis study results for data in audio (Table S2a ), in speech signals only and in music only (Table S2b) depicted by each software tool appearing in [47][48][49].  ... 
doi:10.1186/1687-4722-2012-25 fatcat:f7mi5jj6k5achavdjknamyed3u

Application of Terahertz Pulse Time-Domain Holography for Phase Imaging

Nikolay V. Petrov, Maxim S. Kulya, Anton N. Tsypkin, Victor G. Bespalov, Andrei Gorodetsky
2016 IEEE Transactions on Terahertz Science and Technology  
Terahertz pulse time-domain holography (THz PTDH) is the powerful technique for high-resolution amplitude and phase THz imaging that allows mapping spectroscopic information across the imaged object.  ...  object thicknesses pattern, even in low signal-to-noise registration conditions.  ...  To resolve this problem, an effect of noise should be carefully studied to properly choose between existing noise-canceling methods and adapt them for PTDH.  ... 
doi:10.1109/tthz.2016.2530938 fatcat:y64twg5dmnhhxnbd6rqcnk35h4

Robust Range-Only Mapping via Sum-of-Squares Polynomials

Lionel Génevé, Adlane Habed, Édouard Laroche, Olivier Kermorgant
2017 IFAC-PapersOnLine  
It resulted that the approach accommodates very well classical zero-mean white Gaussian noises by adaptating the ratio of tolerated outliers for the consistency check, but fails to handle additive biases  ...  The validity of the method is asserted via simulations and compared to other standard mapping methods. Different levels and types of noise are added to evaluate the performances of the algorithm.  ...  Finally, the positivity can be restricted to a domain.  ... 
doi:10.1016/j.ifacol.2017.08.1598 fatcat:f7g3bzby75ethb376cksmlo4l4

Training Deep Convolutional Networks With Unlimited Synthesis Of Musical Examples For Multiple Instrument Recognition

Rameel Sethi, Noah Weninger, Abram Hindle, Vadim Bulitko, Michael Frishkopf
2018 Proceedings of the SMC Conferences  
(Abstract to follow)  ...  Noise Noise is added to the music with the use of csound 5 , a program utilizing an audio domain-specific language (DSL).  ...  INTRODUCTION Music information retrieval (MIR) encompasses a wide range of tasks for classification or discovery of structure in music.  ... 
doi:10.5281/zenodo.1422586 fatcat:fbucn2tetzemlbfnkvjiw6rwk4

Capacity, Fidelity, and Noise Tolerance of Associative Spatial-Temporal Memories Based on Memristive Neuromorphic Network [article]

Dmitri Gavrilov, Dmitri Strukov, Konstantin K. Likharev
2017 arXiv   pre-print
(e.g., memristors), though the input noise immunity of the CrossNet memories is somewhat lower.  ...  We have calculated the key characteristics of associative (content-addressable) spatial-temporal memories based on neuromorphic networks with restricted connectivity - "CrossNets".  ...  ACKNOWLEDGMENTS The authors are grateful to E. A. Feinberg for useful discussions.  ... 
arXiv:1707.03855v1 fatcat:4svbh5idxfg2xanyq2v2mj77t4

A Partial String Matching Approach for Named Entity Recognition in Unstructured Bengali Data

Nabil Ibtehaz, Abdus Satter
2018 International Journal of Modern Education and Computer Science  
This paper proposes a partial string matching approach to identify a named entity from an unstructured text corpus in Bengali.  ...  To evaluate the proposed technique, we conducted experiments in a closed domain where we employed this approach on a text corpus with some predefined named entities.  ...  INTRODUCTION Named Entity Recognition problem (NER) holds a very important position in the domain of Natural Language Processing (NLP) and Information Retrieval (IR) [1] .  ... 
doi:10.5815/ijmecs.2018.01.04 fatcat:oboura3kj5e4navtfzcjdkoqh4

Automated FAQ answering with question-specific knowledge representation for web self-service

Eriks Sneiders
2009 2009 2nd Conference on Human System Interactions  
most appropriate for restricted domains, and what peculiarities of running an FAQ answering service for a customer service may be expected.  ...  Automated FAQ answering is a valuable complement to web self-service: while the vast majority of site searches fail, our FAQ answering solution for restricted domains answers two thirds of the queries  ...  We argue that template-based FAQ answering is the most appropriate approach for restricted knowledge domains with up to few hundred FAQs.  ... 
doi:10.1109/hsi.2009.5090996 fatcat:jsgueau74jdbjfqmyobkpn4j4e

Noisy logo recognition using line segment Hausdorff distance

Jingying Chen, Maylor K. Leung, Yongsheng Gao
2003 Pattern Recognition  
The new approach has the advantage to incorporate structural and spatial information to compute dissimilarity between two sets of line segments rather than two sets of points.  ...  In order to develop a recognition method that is robust to employ under adverse conditions such as di erent scale/orientation, broken curves, added noise and occlusion, a modiÿed line segment Hausdor distance  ...  Acknowledgements The authors would like to thank CGIT from NTU for providing the experiment facilities.  ... 
doi:10.1016/s0031-3203(02)00128-0 fatcat:5khjhl2c3zgcfnzznjidt475ki

A fast modal space transform for robust nonrigid shape retrieval

Jianbo Ye, Yizhou Yu
2015 The Visual Computer  
Nonrigid or deformable 3D objects are common in many application domains. Retrieval of such objects in large databases based on shape similarity is still a challenging problem.  ...  Our approach constructs a context-aware integral kernel operator on a manifold, then applies modal analysis to map this operator into a low-frequency functional representation, called fast functional transform  ...  Acknowledgments The authors would like to thank Maks Ovsjanikov and Dirk Smeets for sharing their software implementations.  ... 
doi:10.1007/s00371-015-1071-5 fatcat:mcw22plna5di5fdqghuyth2qe4

Perceptual Mapping-Based Image Tamper Detection and Recovery Algorithm

Taha Basheer Taha, Ruzelita Ngadiran, Dujan B. Taha, Deepu Rajan
2022 Advances in Multimedia  
At the same time, the structure similarity index of resultant images was higher than 0.99 for all tested images.  ...  Results show a high ability to blindly recover images after different attacks such as removing and blocking attacks.  ...  Also, higher texture means less sensitivity to the human eye. Accordingly, higher noise tolerance weight will be added for higher textured areas.  ... 
doi:10.1155/2022/5771954 fatcat:4qzzv2loirb6xbyzrjhfygj7n4
« Previous Showing results 1 — 15 out of 16,844 results