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Computational Intelligence and Neuroscience

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https://www.readbyqxmd.com/read/29780408/an-intelligent-grey-wolf-optimizer-algorithm-for-distributed-compressed-sensing
#1
Haiqiang Liu, Gang Hua, Hongsheng Yin, Yonggang Xu
Distributed Compressed Sensing (DCS) is an important research area of compressed sensing (CS). This paper aims at solving the Distributed Compressed Sensing (DCS) problem based on mixed support model. In solving this problem, the previous proposed greedy pursuit algorithms easily fall into suboptimal solutions. In this paper, an intelligent grey wolf optimizer (GWO) algorithm called DCS-GWO is proposed by combining GWO and q -thresholding algorithm. In DCS-GWO, the grey wolves' positions are initialized by using the q -thresholding algorithm and updated by using the idea of GWO...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29780407/deep-learning-methods-for-underwater-target-feature-extraction-and-recognition
#2
Gang Hu, Kejun Wang, Yuan Peng, Mengran Qiu, Jianfei Shi, Liangliang Liu
The classification and recognition technology of underwater acoustic signal were always an important research content in the field of underwater acoustic signal processing. Currently, wavelet transform, Hilbert-Huang transform, and Mel frequency cepstral coefficients are used as a method of underwater acoustic signal feature extraction. In this paper, a method for feature extraction and identification of underwater noise data based on CNN and ELM is proposed. An automatic feature extraction method of underwater acoustic signals is proposed using depth convolution network...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29765400/single-trial-evoked-potential-estimating-based-on-sparse-coding-under-impulsive-noise-environment
#3
Nannan Yu, Ying Chen, Lingling Wu, Hanbing Lu
Estimating single-trial evoked potentials (EPs) corrupted by the spontaneous electroencephalogram (EEG) can be regarded as signal denoising problem. Sparse coding has significant success in signal denoising and EPs have been proven to have strong sparsity over an appropriate dictionary. In sparse coding, the noise generally is considered to be a Gaussian random process. However, some studies have shown that the background noise in EPs may present an impulsive characteristic which is far from Gaussian but suitable to be modeled by the α -stable distribution (1 < α ≤ 2)...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29765399/a-seasonal-time-series-model-based-on-gene-expression-programming-for-predicting-financial-distress
#4
Ching-Hsue Cheng, Chia-Pang Chan, Jun-He Yang
The issue of financial distress prediction plays an important and challenging research topic in the financial field. Currently, there have been many methods for predicting firm bankruptcy and financial crisis, including the artificial intelligence and the traditional statistical methods, and the past studies have shown that the prediction result of the artificial intelligence method is better than the traditional statistical method. Financial statements are quarterly reports; hence, the financial crisis of companies is seasonal time-series data, and the attribute data affecting the financial distress of companies is nonlinear and nonstationary time-series data with fluctuations...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29755510/assessment-of-multivariate-neural-time-series-by-phase-synchrony-clustering-in-a-time-frequency-topography-representation
#5
M A Porta-Garcia, R Valdes-Cristerna, O Yanez-Suarez
Most EEG phase synchrony measures are of bivariate nature. Those that are multivariate focus on producing global indices of the synchronization state of the system. Thus, better descriptions of spatial and temporal local interactions are still in demand. A framework for characterization of phase synchrony relationships between multivariate neural time series is presented, applied either in a single epoch or over an intertrial assessment, relying on a proposed clustering algorithm, termed Multivariate Time Series Clustering by Phase Synchrony, which generates fuzzy clusters for each multivalued time sample and thereupon obtains hard clusters according to a circular variance threshold; such cluster modes are then depicted in Time-Frequency-Topography representations of synchrony state beyond mere global indices...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29706991/on-synchronizing-coupled-retinogeniculocortical-pathways-a-toy-model
#6
B L Mayer, L H A Monteiro
A Newman-Watts graph is formed by including random links in a regular lattice. Here, the emergence of synchronization in coupled Newman-Watts graphs is studied. The whole neural network is considered as a toy model of mammalian visual pathways. It is composed by four coupled graphs, in which a coupled pair represents the lateral geniculate nucleus and the visual cortex of a cerebral hemisphere. The hemispheres communicate with each other through a coupling between the graphs representing the visual cortices...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29692803/tlbo-based-adaptive-neurofuzzy-controller-for-mobile-robot-navigation-in-a-strange-environment
#7
Awatef Aouf, Lotfi Boussaid, Anis Sakly
This work investigates the possibility of using a novel evolutionary based technique as a solution for the navigation problem of a mobile robot in a strange environment which is based on Teaching-Learning-Based Optimization. TLBO is employed to train the parameters of ANFIS structure for optimal trajectory and minimum travelling time to reach the goal. The obtained results using the suggested algorithm are validated by comparison with different results from other intelligent algorithms such as particle swarm optimization (PSO), invasive weed optimization (IWO), and biogeography-based optimization (BBO)...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29681924/multiclass-informative-instance-transfer-learning-framework-for-motor-imagery-based-brain-computer-interface
#8
Ibrahim Hossain, Abbas Khosravi, Imali Hettiarachchi, Saeid Nahavandi
A widely discussed paradigm for brain-computer interface (BCI) is the motor imagery task using noninvasive electroencephalography (EEG) modality. It often requires long training session for collecting a large amount of EEG data which makes user exhausted. One of the approaches to shorten this session is utilizing the instances from past users to train the learner for the novel user. In this work, direct transferring from past users is investigated and applied to multiclass motor imagery BCI. Then, active learning (AL) driven informative instance transfer learning has been attempted for multiclass BCI...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29681923/exploring-the-impact-of-early-decisions-in-variable-ordering-for-constraint-satisfaction-problems
#9
José Carlos Ortiz-Bayliss, Ivan Amaya, Santiago Enrique Conant-Pablos, Hugo Terashima-Marín
When solving constraint satisfaction problems (CSPs), it is a common practice to rely on heuristics to decide which variable should be instantiated at each stage of the search. But, this ordering influences the search cost. Even so, and to the best of our knowledge, no earlier work has dealt with how first variable orderings affect the overall cost. In this paper, we explore the cost of finding high-quality orderings of variables within constraint satisfaction problems. We also study differences among the orderings produced by some commonly used heuristics and the way bad first decisions affect the search cost...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29675036/ps-fw-a-hybrid-algorithm-based-on-particle-swarm-and-fireworks-for-global-optimization
#10
Shuangqing Chen, Yang Liu, Lixin Wei, Bing Guan
Particle swarm optimization (PSO) and fireworks algorithm (FWA) are two recently developed optimization methods which have been applied in various areas due to their simplicity and efficiency. However, when being applied to high-dimensional optimization problems, PSO algorithm may be trapped in the local optima owing to the lack of powerful global exploration capability, and fireworks algorithm is difficult to converge in some cases because of its relatively low local exploitation efficiency for noncore fireworks...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29670647/cuckoo-search-approach-for-parameter-identification-of-an-activated-sludge-process
#11
Intissar Khoja, Taoufik Ladhari, Faouzi M'sahli, Anis Sakly
A parameter identification problem for a hybrid model is presented. The latter describes the operation of an activated sludge process used for waste water treatment. Parameter identification problem can be considered as an optimization one by minimizing the error between simulation and experimental data. One of the new and promising metaheuristic methods for solving similar mathematical problem is Cuckoo Search Algorithm. It is inspired by the parasitic brood behavior of cuckoo species. To confirm the effectiveness and the efficiency of the proposed algorithm, simulation results will be compared with other algorithms, firstly, with a classical method which is the Nelder-Mead algorithm and, secondly, with intelligent methods such as Genetic Algorithm and Particle Swarm Optimization approaches...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29666635/modified-backtracking-search-optimization-algorithm-inspired-by-simulated-annealing-for-constrained-engineering-optimization-problems
#12
Hailong Wang, Zhongbo Hu, Yuqiu Sun, Qinghua Su, Xuewen Xia
The backtracking search optimization algorithm (BSA) is a population-based evolutionary algorithm for numerical optimization problems. BSA has a powerful global exploration capacity while its local exploitation capability is relatively poor. This affects the convergence speed of the algorithm. In this paper, we propose a modified BSA inspired by simulated annealing (BSAISA) to overcome the deficiency of BSA. In the BSAISA, the amplitude control factor ( F ) is modified based on the Metropolis criterion in simulated annealing...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29666634/dynamical-motor-control-learned-with-deep-deterministic-policy-gradient
#13
Haibo Shi, Yaoru Sun, Jie Li
Conventional models of motor control exploit the spatial representation of the controlled system to generate control commands. Typically, the control command is gained with the feedback state of a specific instant in time, which behaves like an optimal regulator or spatial filter to the feedback state. Yet, recent neuroscience studies found that the motor network may constitute an autonomous dynamical system and the temporal patterns of the control command can be contained in the dynamics of the motor network, that is, the dynamical system hypothesis (DSH)...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29666633/the-eeg-activity-during-binocular-depth-perception-of-2d-images
#14
Marsel Fazlyyyakhmatov, Nataly Zwezdochkina, Vladimir Antipov
The central brain functions underlying a stereoscopic vision were a subject of numerous studies investigating the cortical activity during binocular perception of depth. However, the stereo vision is less explored as a function promoting the cognitive processes of the brain. In this work, we investigated a cortical activity during the cognitive task consisting of binocular viewing of a false image which is observed when the eyes are refocused out of the random-dot stereogram plane (3D phenomenon). The power of cortical activity before and after the onset of the false image perception was assessed using the scull EEG recording...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29666632/decoding-pigeon-behavior-outcomes-using-functional-connections-among-local-field-potentials
#15
Yan Chen, Xinyu Liu, Shan Li, Hong Wan
Recent studies indicate that the local field potential (LFP) carries information about an animal's behavior, but issues regarding whether there are any relationships between the LFP functional networks and behavior tasks as well as whether it is possible to employ LFP network features to decode the behavioral outcome in a single trial remain unresolved. In this study, we developed a network-based method to decode the behavioral outcomes in pigeons by using the functional connectivity strength values among LFPs recorded from the nidopallium caudolaterale (NCL)...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29623090/liraglutide-activates-the-nrf2-ho-1-antioxidant-pathway-and-protects-brain-nerve-cells-against-cerebral-ischemia-in-diabetic-rats
#16
Caihong Deng, Jun Cao, Jiangquan Han, Jianguo Li, Zhaohun Li, Ninghua Shi, Jing He
This study aimed to determine the effect of liraglutide pretreatment and to elucidate the mechanism of nuclear factor erythroid 2-related factor (Nrf2)/heme oxygenase-1 (HO-1) signaling after focal cerebral ischemia injury in diabetic rats model. Adult male Sprague-Dawley rats were randomly divided into the sham-operated (S) group, diabetes mellitus ischemia (DM + MCAO) group, liraglutide pretreatment normal blood glucose ischemia (NDM+MCAO+L) group, and liraglutide pretreatment diabetes ischemia (DM + MCAO + L) group...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29623089/real-time-human-detection-for-aerial-captured-video-sequences-via-deep-models
#17
Nouar AlDahoul, Aznul Qalid Md Sabri, Ali Mohammed Mansoor
Human detection in videos plays an important role in various real life applications. Most of traditional approaches depend on utilizing handcrafted features which are problem-dependent and optimal for specific tasks. Moreover, they are highly susceptible to dynamical events such as illumination changes, camera jitter, and variations in object sizes. On the other hand, the proposed feature learning approaches are cheaper and easier because highly abstract and discriminative features can be produced automatically without the need of expert knowledge...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29623088/a-cross-domain-collaborative-filtering-algorithm-based-on-feature-construction-and-locally-weighted-linear-regression
#18
Xu Yu, Jun-Yu Lin, Feng Jiang, Jun-Wei Du, Ji-Zhong Han
Cross-domain collaborative filtering (CDCF) solves the sparsity problem by transferring rating knowledge from auxiliary domains. Obviously, different auxiliary domains have different importance to the target domain. However, previous works cannot evaluate effectively the significance of different auxiliary domains. To overcome this drawback, we propose a cross-domain collaborative filtering algorithm based on Feature Construction and Locally Weighted Linear Regression (FCLWLR). We first construct features in different domains and use these features to represent different auxiliary domains...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29606961/a-pruning-neural-network-model-in-credit-classification-analysis
#19
Yajiao Tang, Junkai Ji, Shangce Gao, Hongwei Dai, Yang Yu, Yuki Todo
Nowadays, credit classification models are widely applied because they can help financial decision-makers to handle credit classification issues. Among them, artificial neural networks (ANNs) have been widely accepted as the convincing methods in the credit industry. In this paper, we propose a pruning neural network (PNN) and apply it to solve credit classification problem by adopting the well-known Australian and Japanese credit datasets. The model is inspired by synaptic nonlinearity of a dendritic tree in a biological neural model...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29606960/automated-text-analysis-based-on-skip-gram-model-for-food-evaluation-in-predicting-consumer-acceptance
#20
Augustine Yongwhi Kim, Jin Gwan Ha, Hoduk Choi, Hyeonjoon Moon
The purpose of this paper is to evaluate food taste, smell, and characteristics from consumers' online reviews. Several studies in food sensory evaluation have been presented for consumer acceptance. However, these studies need taste descriptive word lexicon, and they are not suitable for analyzing large number of evaluators to predict consumer acceptance. In this paper, an automated text analysis method for food evaluation is presented to analyze and compare recently introduced two jjampong ramen types (mixed seafood noodles)...
2018: Computational Intelligence and Neuroscience
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