Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5655900
Yan Zhang, P. An, Yanfei Wu, Zhaoyang Zhang
With more and more applications of Stereo/multiview video technology, Stereo/multiview video quality assessment is quite needed. In this paper, we have proposed a novel multiview video quality assessment method based on disparity and SSIM. We evaluate video quality from two aspects, stereo perception and image quality. Stereo perception is evaluated by the disparities, and image quality is got by the similarity of every view. The subjective experiments verified the rationality of the presented novel objective method.
{"title":"A multiview video quality assessment method based on disparity and SSIM","authors":"Yan Zhang, P. An, Yanfei Wu, Zhaoyang Zhang","doi":"10.1109/ICOSP.2010.5655900","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5655900","url":null,"abstract":"With more and more applications of Stereo/multiview video technology, Stereo/multiview video quality assessment is quite needed. In this paper, we have proposed a novel multiview video quality assessment method based on disparity and SSIM. We evaluate video quality from two aspects, stereo perception and image quality. Stereo perception is evaluated by the disparities, and image quality is got by the similarity of every view. The subjective experiments verified the rationality of the presented novel objective method.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"80 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133203696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5657129
Weidong Zhou, Baozong Yuan
Spoken language understanding is aimed at the interpretation of signs conveyed by a speech signal. While data-driven methods reduce maintenance and portability costs compared with handcrafted parsers, the collection of word-level semantic annotations for training remains a time-consuming task. This paper has focused on building generative model "Finite State Tagger" from unaligned data, using expectation-maximization techniques to align semantic concepts. Moreover, to model the hierarchical semantic relations in different slot entities, this paper proposed a pipeline architecture using finite state tagger and long-range dependency parsing.
{"title":"Spoken language understanding using finite state tagger and long-range dependency parsing","authors":"Weidong Zhou, Baozong Yuan","doi":"10.1109/ICOSP.2010.5657129","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5657129","url":null,"abstract":"Spoken language understanding is aimed at the interpretation of signs conveyed by a speech signal. While data-driven methods reduce maintenance and portability costs compared with handcrafted parsers, the collection of word-level semantic annotations for training remains a time-consuming task. This paper has focused on building generative model \"Finite State Tagger\" from unaligned data, using expectation-maximization techniques to align semantic concepts. Moreover, to model the hierarchical semantic relations in different slot entities, this paper proposed a pipeline architecture using finite state tagger and long-range dependency parsing.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"277 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131663865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5655210
Li-xin Yang, Z. Deng, Li-Jun Zhang
By the modern time series analysis method and white noise estimators, based on the autoregressive moving average (ARMA) innovation model and augmented state space model, under the linear minimum variance optimal fusion rule weighted by scalars, a multisensor optimal distributed fusion Wiener filter is proposed for single channel ARMA signals with white and colored measurement noises. The formulas of computing local filtering error variances and cross-covariances are given, which are applied to compute optimal weighting coefficients. Compared with the single sensor case, the accuracy of the fused filter is improved. A simulated example shows its effectiveness.
{"title":"Multisensor information fusion Wiener filter for ARMA signals","authors":"Li-xin Yang, Z. Deng, Li-Jun Zhang","doi":"10.1109/ICOSP.2010.5655210","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5655210","url":null,"abstract":"By the modern time series analysis method and white noise estimators, based on the autoregressive moving average (ARMA) innovation model and augmented state space model, under the linear minimum variance optimal fusion rule weighted by scalars, a multisensor optimal distributed fusion Wiener filter is proposed for single channel ARMA signals with white and colored measurement noises. The formulas of computing local filtering error variances and cross-covariances are given, which are applied to compute optimal weighting coefficients. Compared with the single sensor case, the accuracy of the fused filter is improved. A simulated example shows its effectiveness.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131857885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5656672
Shang Jian-hua, Zhang Ming-min, Zhai Qi
A method using broadband acoustic holography has been put forward to determining the reflection coefficients at arbitrary angles of incidence and compared with mono-frequent acoustic holography. The selection principle about every parameter has been deduced by numerical experiments on an aluminum board. Under an average error level of 10%, the radius of holographic plane should be greater than two times of the maximal wavelength, and the interval of two space samples has better to be less than one-third of the minimal wavelength, the height of the first measurement plane should at least be less than two-thirds of the minimal wavelength, the vertical distance between the two measurement planes should at least be less than half of the minimal wavelength, the height of sound source is proposed to be in between one-fifth of the maximal wavelength and four times of the minimal wavelength.
{"title":"Measuring reflection coefficients of underwater sound material at oblique incidence using broadband acoustic holography","authors":"Shang Jian-hua, Zhang Ming-min, Zhai Qi","doi":"10.1109/ICOSP.2010.5656672","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5656672","url":null,"abstract":"A method using broadband acoustic holography has been put forward to determining the reflection coefficients at arbitrary angles of incidence and compared with mono-frequent acoustic holography. The selection principle about every parameter has been deduced by numerical experiments on an aluminum board. Under an average error level of 10%, the radius of holographic plane should be greater than two times of the maximal wavelength, and the interval of two space samples has better to be less than one-third of the minimal wavelength, the height of the first measurement plane should at least be less than two-thirds of the minimal wavelength, the vertical distance between the two measurement planes should at least be less than half of the minimal wavelength, the height of sound source is proposed to be in between one-fifth of the maximal wavelength and four times of the minimal wavelength.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115358315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5655876
Jie Kang, Gang Yang
During forming synthetic aperture radar (SAR) image, the inherent speckle noise severely affects the application result of SAR images. To deal with this problem, based on the contour bougie morphology (CB morphology) and the generalized multiple structuring elements morphology, a novel series morphological filter was constructed to suppress the speckle noise in SAR images. Firstly, by use of the omnidirectional multiple structuring elements the generalized multi-scale morphology open-max filter was adopted to filter the noise at the cost of minimal loss of image geometrical details, and then a CB open and a CB close series filter were used to filter the remained speckle noise. Thus it can not only effectively suppress the speckle noise in images but also preserve more detailed information of the images. Lastly, the simulated SAR images and the actual SAR images are simulated, and the results prove that the algorithm presented in this paper can efficiently suppresses the speckle noise in SAR images.
{"title":"The algorithm of SAR speckle noise suppressing by using generalized multi-scale CB morphology","authors":"Jie Kang, Gang Yang","doi":"10.1109/ICOSP.2010.5655876","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5655876","url":null,"abstract":"During forming synthetic aperture radar (SAR) image, the inherent speckle noise severely affects the application result of SAR images. To deal with this problem, based on the contour bougie morphology (CB morphology) and the generalized multiple structuring elements morphology, a novel series morphological filter was constructed to suppress the speckle noise in SAR images. Firstly, by use of the omnidirectional multiple structuring elements the generalized multi-scale morphology open-max filter was adopted to filter the noise at the cost of minimal loss of image geometrical details, and then a CB open and a CB close series filter were used to filter the remained speckle noise. Thus it can not only effectively suppress the speckle noise in images but also preserve more detailed information of the images. Lastly, the simulated SAR images and the actual SAR images are simulated, and the results prove that the algorithm presented in this paper can efficiently suppresses the speckle noise in SAR images.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123910227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5655721
Zhu Lingfeng, X. Huaping
Current researches on the phase of interferometric Synthetic Aperture Radar (abbreviated as InSAR) images are restricted to the homogeneous scene with spatially constant backscatter coefficients. But in reality, there are many unknown targets or sealers with high backscatter coefficients in the ground scene, which produce several bright spots (called isolated points) in the SAR image. The phase statistical characteristic of interferogram at the isolated point is not available recently. Based on the InSAR system, the phase distribution characteristic of SAR image at the isolated point is analyzed. Furthermore, the interferometric phase probability density function at the isolated point is deduced and the phase statistical characteristic at the isolated point is analyzed in theory which is confirmed by the simulations. Finally the conclusion is obtained that the existence of isolated point can improve the interferometric phase estimation precision which establishes the theoretic foundation for calibrating the InSAR system with the interferometric phase at the sealer.
{"title":"The phase statistical characteristic of InSAR image at the isolated point","authors":"Zhu Lingfeng, X. Huaping","doi":"10.1109/ICOSP.2010.5655721","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5655721","url":null,"abstract":"Current researches on the phase of interferometric Synthetic Aperture Radar (abbreviated as InSAR) images are restricted to the homogeneous scene with spatially constant backscatter coefficients. But in reality, there are many unknown targets or sealers with high backscatter coefficients in the ground scene, which produce several bright spots (called isolated points) in the SAR image. The phase statistical characteristic of interferogram at the isolated point is not available recently. Based on the InSAR system, the phase distribution characteristic of SAR image at the isolated point is analyzed. Furthermore, the interferometric phase probability density function at the isolated point is deduced and the phase statistical characteristic at the isolated point is analyzed in theory which is confirmed by the simulations. Finally the conclusion is obtained that the existence of isolated point can improve the interferometric phase estimation precision which establishes the theoretic foundation for calibrating the InSAR system with the interferometric phase at the sealer.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124571609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5656491
Jun Wan, Q. Ruan, Wei Li
In this paper two novel methods are proposed for recognizing B-mode ultrasound (US) imaging of common carotid artery (CCA) in longitude. In the single frame method, the US is segmented by k-means fuzzy clustering algorithm. Then a series points are extracted based on geometric features. Thirdly, the feature points are selected according to our new cluster method. Then curve fitting is applied by feature points. Finally CCA is recognized in US imaging. According to the experiment on 7402 frames of 104 US videos from different persons, 95.66% accuracy rate is achieved. Based on multi-frame algorithm, it integrates the first algorithm for present frame and a buffer strategy for previous frame information. 98.97% accuracy rate is higher than the single frame method. Our novel technique outperforms the current technique proposed in other papers. The recognition CCA is totally automatic in our database by our proposed methods. Those proposed automatic methods are suitable for real-time recognition of the CCA.
{"title":"Using two methods for recognition common carotid artery of B-mode longitudinal ultrasound image","authors":"Jun Wan, Q. Ruan, Wei Li","doi":"10.1109/ICOSP.2010.5656491","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5656491","url":null,"abstract":"In this paper two novel methods are proposed for recognizing B-mode ultrasound (US) imaging of common carotid artery (CCA) in longitude. In the single frame method, the US is segmented by k-means fuzzy clustering algorithm. Then a series points are extracted based on geometric features. Thirdly, the feature points are selected according to our new cluster method. Then curve fitting is applied by feature points. Finally CCA is recognized in US imaging. According to the experiment on 7402 frames of 104 US videos from different persons, 95.66% accuracy rate is achieved. Based on multi-frame algorithm, it integrates the first algorithm for present frame and a buffer strategy for previous frame information. 98.97% accuracy rate is higher than the single frame method. Our novel technique outperforms the current technique proposed in other papers. The recognition CCA is totally automatic in our database by our proposed methods. Those proposed automatic methods are suitable for real-time recognition of the CCA.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114434452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5655138
Yuanlu Li, Li Hu
Fractional-order derivative spectroscopy has been developed to resolve the overlapped Lorentzian peak-signals. Resolutions are directly characterized by spectral paramters extracted from the overlapped peak-signals. For this purpose, using the Haar wavelet as a tool we design a fractional-order differentiator to develop the fractional-order derivative spectroscopy. As the application of the proposed method, simulated overlapped Lorentzian peaks has been resolved. Results indicate the proposed method can be used to resolve overlapped Lorentzian peaks effectively and satisfactorily.
{"title":"Fractional-order derivative spectroscopy for resolving overlapped Lorenztian peak-signals","authors":"Yuanlu Li, Li Hu","doi":"10.1109/ICOSP.2010.5655138","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5655138","url":null,"abstract":"Fractional-order derivative spectroscopy has been developed to resolve the overlapped Lorentzian peak-signals. Resolutions are directly characterized by spectral paramters extracted from the overlapped peak-signals. For this purpose, using the Haar wavelet as a tool we design a fractional-order differentiator to develop the fractional-order derivative spectroscopy. As the application of the proposed method, simulated overlapped Lorentzian peaks has been resolved. Results indicate the proposed method can be used to resolve overlapped Lorentzian peaks effectively and satisfactorily.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114605299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5656662
Yang Lan, Zhan Zhang, H. Kayama
Hardware testbeds are an essential tool to evaluate the performance of multiple-input multiple-output (MIMO) systems in a realistic environment. However, most of the existing MIMO transmission testbeds have been conducted under less than or equal to four antennas. An 8×8 field programmable gate arrays (FGPA)-based MIMO-orthogonal frequency division multiplexing (OFDM) real-time transmission testbed has been developed by the DOCOMO Beijing Labs (DBL) in a typical indoor environment. Our objective is twofold: 1) to validate the functionality of MIMO and OFDM technologies; 2) meanwhile, to verify our receiver detection algorithm, orthogonal grouping-based near optimal detection algorithm (OGNO), proposed for high order MIMO systems. This paper presents a description of the testbed, detailing the testbed architecture, algorithms interest and hardware components. Moreover, we also present measurement results and show the impact of spatial correlation on system performance.
{"title":"An 8×8 FPGA-based MIMO-OFDM real-time transmission testbed: OGNO implementation and experimental results","authors":"Yang Lan, Zhan Zhang, H. Kayama","doi":"10.1109/ICOSP.2010.5656662","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5656662","url":null,"abstract":"Hardware testbeds are an essential tool to evaluate the performance of multiple-input multiple-output (MIMO) systems in a realistic environment. However, most of the existing MIMO transmission testbeds have been conducted under less than or equal to four antennas. An 8×8 field programmable gate arrays (FGPA)-based MIMO-orthogonal frequency division multiplexing (OFDM) real-time transmission testbed has been developed by the DOCOMO Beijing Labs (DBL) in a typical indoor environment. Our objective is twofold: 1) to validate the functionality of MIMO and OFDM technologies; 2) meanwhile, to verify our receiver detection algorithm, orthogonal grouping-based near optimal detection algorithm (OGNO), proposed for high order MIMO systems. This paper presents a description of the testbed, detailing the testbed architecture, algorithms interest and hardware components. Moreover, we also present measurement results and show the impact of spatial correlation on system performance.","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114827081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-03DOI: 10.1109/ICOSP.2010.5655874
Zeming Zhou, Yuanxiang Li, Han-qing Shi, Ning Ma, Chun He, Peng Zhang
A fast variational fusion model based on partial differential equation (PDE) is presented for pan-sharpening. The functional is constructed with several energy terms. The gradient energy term is created by calculating the gradient vector field of the panchromatic image. The visualization energy term is used for improving the perceptual effect and the spectral preserving energy term is designed for enforcing the spectral coherence. The channel correlation energy term and the radiometric reduction energy term are defined to preserve the correlation of multi-spectral channels and decrease the radiometric distortion. Inspired by the shock-filtering model, an inverse diffusion term for image enhancement is put to PDEs which is deduced by minimizing the energy functional. In comparison with the fusion models based on discrete wavelet transform, à trous wavelet transform and the contrast-based PDE, it is shown that our model can improve the spatial resolution of the multi-spectral bands while preserving the spectral quality more effectively. Our model's computational complexity for one time step is only O(N).
{"title":"A fast variational fusion approach for pan-sharpening","authors":"Zeming Zhou, Yuanxiang Li, Han-qing Shi, Ning Ma, Chun He, Peng Zhang","doi":"10.1109/ICOSP.2010.5655874","DOIUrl":"https://doi.org/10.1109/ICOSP.2010.5655874","url":null,"abstract":"A fast variational fusion model based on partial differential equation (PDE) is presented for pan-sharpening. The functional is constructed with several energy terms. The gradient energy term is created by calculating the gradient vector field of the panchromatic image. The visualization energy term is used for improving the perceptual effect and the spectral preserving energy term is designed for enforcing the spectral coherence. The channel correlation energy term and the radiometric reduction energy term are defined to preserve the correlation of multi-spectral channels and decrease the radiometric distortion. Inspired by the shock-filtering model, an inverse diffusion term for image enhancement is put to PDEs which is deduced by minimizing the energy functional. In comparison with the fusion models based on discrete wavelet transform, à trous wavelet transform and the contrast-based PDE, it is shown that our model can improve the spatial resolution of the multi-spectral bands while preserving the spectral quality more effectively. Our model's computational complexity for one time step is only O(N).","PeriodicalId":281876,"journal":{"name":"IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114537922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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