2017 Artificial Intelligence and Signal Processing Conference (AISP)最新文献

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Comparison of different objects in multi-objective ensemble clustering 多目标集成聚类中不同目标的比较
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324110
Haleh Homayouni, E. Mansoori
{"title":"Comparison of different objects in multi-objective ensemble clustering","authors":"Haleh Homayouni, E. Mansoori","doi":"10.1109/AISP.2017.8324110","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324110","url":null,"abstract":"Clustering is one of a greatest data mining tools that is used for partitioning dataset into different groups based on some similarity/dissimilarity metric. Traditional clustering algorithms often need prior knowledge about the data structure that makes clustering performance poorly when the cluster assumptions do not hold in the data sets. Multi objective clustering, in which multiple objective functions are simultaneously optimized, has emerged in such situations. In particular, application of multi objective evolutionary algorithms for clustering has become popular in the last decade because of their population-based nature. One of the most important case in multi objective evolutionary algorithms is objective functions that choose in evolutionary algorithms. In this paper we compare some different objects in evolutionary algorithm implemented with NSGA-II in ensemble clustering named MECA and compare the results between objectives.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122830234","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}
引用次数: 1
A model of sequential prediction in the brain using an oscillatory network 一种利用振荡网络在大脑中进行顺序预测的模型
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324086
G. Baghdadi, R. Rostami, F. Towhidkhah
{"title":"A model of sequential prediction in the brain using an oscillatory network","authors":"G. Baghdadi, R. Rostami, F. Towhidkhah","doi":"10.1109/AISP.2017.8324086","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324086","url":null,"abstract":"The predictive brain is a term that is known because of the capability of our neural system to find a model of the environment and to use it for predicting the incoming stimulus. It has not been fully understood that how our neural system that consists of millions of oscillatory networks can create, update, and maintain a model for the sequential prediction. In the current paper, we have proposed an oscillatory network that its units connect to each other through synchronization mechanism. The network has been used to suggest a possible mechanism of extracting the regularities exist in a continuous performance test. The result of simulations has been compared with the recorded human experiment data. Outcomes showed that the proposed model can mimic the pattern of human behaviors. It can be concluded that brain may create and modified the model of the environment by updating the coupling weight or the level of synchronization between its different units. There are some parameters in the proposed network and the updating procedure that can be used to model different observations of normal or abnormal human behaviors in sequential prediction.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126295873","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}
引用次数: 1
Combination of wavelet and contourlet transforms for PET and MRI image fusion 基于小波变换和轮廓波变换的PET与MRI图像融合
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324077
Fahim Shabanzade, H. Ghassemian
{"title":"Combination of wavelet and contourlet transforms for PET and MRI image fusion","authors":"Fahim Shabanzade, H. Ghassemian","doi":"10.1109/AISP.2017.8324077","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324077","url":null,"abstract":"Image fusion is a widely used technique for enhancing the interpretation quality of images in medical application, which use different medical imaging sensors. This paper presents an image fusion framework for images acquired by using two distinct medical imaging sensor modalities (i.e. PET and MRI) using a combination of Stationary Wavelet Transform (SWT) and Non Sub-sampled Contourlet Transform (NSCT). We use a cascaded combination of SWT and NSCT to benefit advantages of SWT at the first step of the proposed method. Then, to decrease the SWT's drawbacks such as shift variance, poor directionality and absence of phase information, we employ Principal Component Analysis (PCA) algorithm in the SWT domain to minimize the redundancy. In the second step the maximum fusion rule is used in the NSCT domain to enhance the diagnostic features. The experimental results demonstrate that the proposed method is better than various existing transform-based and spatial based fusion methods and some other hybrid methods, in terms of both subjective and objective evaluations.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121152232","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}
引用次数: 21
Speech enhancement by minimum mean-square error spectral amplitude estimation assuming weibull speech priors 假设威布尔语音先验的最小均方误差谱幅估计语音增强
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324079
M. Bahrami, N. Faraji
{"title":"Speech enhancement by minimum mean-square error spectral amplitude estimation assuming weibull speech priors","authors":"M. Bahrami, N. Faraji","doi":"10.1109/AISP.2017.8324079","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324079","url":null,"abstract":"In this paper, we present a novel single-channel speech enhancement method in the Discrete Fourier Transform (DFT) domain. Here, the amplitude of DFT coefficients of a clean speech signal is modeled by a Weibull probability density function. Measuring the Jensen-Shannon divergence (JSD), Weibull distribution showed a better fit to clean speech signal compared to the previously fitted distributions such as gamma and Rayleigh. Therefore, we modify the Minimum Mean Square Error (MMSE) estimation algorithm for speech enhancement considering Weibull speech priors and Gaussian additive noise signals. The enhanced speech signals are assessed based on the perceptual evaluation of speech quality (PESQ) and segmental signal-to-noise ratio (SEG-SNR) criteria. Extensive simulation experiments on speech signals degraded by various additive non-stationary noise sources demonstrate that performance improvements are possible employing Weibull speech priors in the MMSE-based speech enhancement algorithm compared to the Rayleigh and Gamma PDFs.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126349120","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}
引用次数: 4
Kim: A new structure for optimization problems ▽金=解决最优化问题的新结构
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324102
A. Hamzeh, K. B. Lari
{"title":"Kim: A new structure for optimization problems","authors":"A. Hamzeh, K. B. Lari","doi":"10.1109/AISP.2017.8324102","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324102","url":null,"abstract":"The multi-objective optimization algorithms are used as the best optimizer in many design issues. One of the main challenge for these algorithms is that increasing the number of objective functions leads poor performing of the algorithm. Reducing the selection pressure is the main reason of this phenomenon. In order to overcome this problem, the population diversity should be controlled. In this regard, this study developed a new evolutionary algorithm through resolving this dilemma. In the proposed method, a measure is considered for estimating the diversity of individuals in the population to adaptively control the rate of population diversity. A new fitness evaluation is also provided in this paper for assessing the fitness of chromosomes. So in this schema the selection of chromosomes is based on their contribution to population diversity in addition to being based on their fitness. The obtained results proved that the performance of the proposed algorithm has been improved through various tests. It is worth noting that the potential of the proposed method is examined on the most recent test function that presented in this field.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"49 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133141450","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}
引用次数: 0
Panchromatic and multispectral images fusion using sparse representation 基于稀疏表示的全色与多光谱图像融合
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/aisp.2017.8324113
Mehdi Ghamchili, H. Ghassemian
{"title":"Panchromatic and multispectral images fusion using sparse representation","authors":"Mehdi Ghamchili, H. Ghassemian","doi":"10.1109/aisp.2017.8324113","DOIUrl":"https://doi.org/10.1109/aisp.2017.8324113","url":null,"abstract":"In this paper, we propose a new pansharpening method based on sparse representation theory to fuse panchromatic and multispectral images. In the proposed method, the high-resolution multispectral image is reconstructed by adding some details to the multispectral image. The details are achieved directly by a proper dictionary which is constructed using a high pass version of the panchromatic image, so-called ‘detail dictionary’, and proper sparse coefficients. The required atoms for generating the details are chosen by two objective functions. One of these functions chooses atoms having high spatial information and the other one selects atoms with high spectral information. Then, the details are made from a linear combination of these atoms. We use both sets of the atoms to increase the spatial details and decrease the spectral distortion. In order to investigate the efficiency of the proposed method, two datasets from Pleiades and WorldView-2 satellites are used. Based on the experimental results, it is found that the proposed method performs better than the state-of-the-art methods in maintaining of spectral information as well as increasing spatial details objectively and visually.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121376089","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}
引用次数: 5
Adapting google translate for English-Persian cross-lingual information retrieval in medical domain 适应谷歌翻译的英语-波斯语跨语种信息检索在医学领域
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324104
Amin Rahmani
{"title":"Adapting google translate for English-Persian cross-lingual information retrieval in medical domain","authors":"Amin Rahmani","doi":"10.1109/AISP.2017.8324104","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324104","url":null,"abstract":"Cross-lingual information retrieval (CLIR) systems enable users to search and find their information needs from sources written in languages other than the user's native language. Generally, these systems assist users to overcome the language barrier problem. Although, several techniques are used to develop such systems, query translation method has absorbed much attention due to its performance. In this paper, the author suggested a new approach for English-Persian CLIR. To do this, Google Translate's API was adapted for CLIR system to translate the queries. Using TREC dataset, 50 queries were selected to evaluate the system. Both English queries and their Persian equivalents were searched in RICeST's English and Persian E-articles databases. As black box evaluation, the researcher utilized 11 point interpolated average precision metric to gain the average precision (AP) score for each query after which the mean average precision measure (MAP) scores for English and Persian queries were calculated. The MAP score for monolingual and cross-lingual systems were 0.421 and 0.382 respectively. As glass box evaluation, the machine translation system's performance was measured based on the BLEU automatic metric. According to the results of this study, 90% similarity in IR was observed between the CLIR and the monolingual systems. The new approach was ideally suited for English and Persian CLIR task.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129024641","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}
引用次数: 3
A new feature extraction based on local energy for hyperspectral image 基于局部能量的高光谱图像特征提取新方法
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324107
R. Marandi, H. Ghassemian
{"title":"A new feature extraction based on local energy for hyperspectral image","authors":"R. Marandi, H. Ghassemian","doi":"10.1109/AISP.2017.8324107","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324107","url":null,"abstract":"In hyperspectral classification, as the number of training samples to classify are limited, the accuracy of classifier decreases. One of the reasons for this phenomenon is the variability of spin-off extraction spatial features. This means that when the scene is rotated a bit, these features also change. It should be noted that these features are a local feature and ruin this situation, because there may be a class in two parts of the scene that is rotated relative to another. For this purpose, a new method for extracting spatial features has been proposed in this paper that is unchangeable to rotation. In this study, local energy has been extracted by local Fourier transform and structural information has been extracted by morphological attribute profiles (APs) to complete the extraction features. Energy information and spectral information in a scenario are stacked. Energy information, structure information and spectral information are stacked in another scenario. Then they are classified by support vector machine (SVM) classifier. The results express that the first scenario is beneficial for images without structural data, and the second scenario is more useful for urban images, which includes a lot of structural information. The proposed method are applied on three famous data sets (Pavia University, Salinas and Indiana Pines). The results demonstrate that the proposed method is superior to the other competition methods.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129200095","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}
引用次数: 0
Face verification in the wild using similarity in representations 在野外使用相似性表征的人脸验证
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324125
M. Miri
{"title":"Face verification in the wild using similarity in representations","authors":"M. Miri","doi":"10.1109/AISP.2017.8324125","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324125","url":null,"abstract":"In recent years, classification using sparse representation of signals has attracted much attention and has achieved satisfactory results compared to the conventional methods. In this paper, a classification method using sparse representation is proposed for face verification in Labeled Faces in the Wild (LFW) data. The LFW dataset involves high intra-class variations due to the uncontrolled imaging conditions. According to our experimental results, matched and mismatched pairs of the LFW data can be better classified using separate dictionaries for each image of the input pair.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"11 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116043920","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}
引用次数: 2
Impact of machine learning on improvement of user experience in museums 机器学习对博物馆用户体验提升的影响
2017 Artificial Intelligence and Signal Processing Conference (AISP) Pub Date : 2017-10-01 DOI: 10.1109/AISP.2017.8324080
M. Majd, R. Safabakhsh
{"title":"Impact of machine learning on improvement of user experience in museums","authors":"M. Majd, R. Safabakhsh","doi":"10.1109/AISP.2017.8324080","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324080","url":null,"abstract":"Utilizing new technologies is the key to improve user experience in museums. Natural and unobtrusive methods like those offered by machine learning approaches are more desired by users. So far, the research on machine learning applications in museums is mostly limited to art authentication, guiding and virtual reality. Yet, machine learning has powerful methods to extract information from any type of data and therefore there are other interesting applications which can have a significant effect on museum experience. The current work is an attempt to find an abstract and yet elaborate view into the existing machine learning applications in museums in general and automatic guide methods in particular. To do so, applications are grouped into different categories and for each category the usefulness of applying machine learning along with the existing methods, if any, are presented. Furthermore, a precise explanation on new directions accompanied by examples is provided. We expect this paper to be of interest to the machine learning researchers since it provides a guideline to proper directions of research in this realm.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121013536","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}
引用次数: 13
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