Journal of Intelligent & Fuzzy Systems - Volume 42, issue 3

Authors: Zhang, Yu | Xiao, Qunli | Deng, Xinyang | Jiang, Wen

Article Type: Research Article

Abstract: The ship target recognition (STR) is greatly related to the battlefield situation awareness, which has recently gained prominence in the military domains. With the diversification and complexity of military missions, ship targets are mostly performed in the form of formations. Therefore, using the formation information to improve the accuracy of the ship target type recognition is worth studying. To effectively identify ship target type, we in this paper jointly consider the ship dynamic, formation, and feature information to propose a STR method based on Bayesian inference and evidence theory. Specifically, we first calculate the ship position distance matrix and the …directional distance matrix with the Dynamic Time Warping (DTW) and the difference-vector algorithm taken into account. Then, we use the two distance matrices to obtain the ship formation information at different distance thresholds by the hierarchical clustering method, based on which we can infer the ship type. Thirdly, formation information and other attribute information are as nodes of the Bayesian Network (BN) to infer the ship type. Afterward, we can convert the recognition results at different thresholds into body of evidences (BOEs) as multiple information sources. Finally, we fuse the BOEs to get the final recognition. The proposed method is verified in simulation battle scenario in this paper. The simulation results demonstrate that the proposed method achieves performance superiority as compared with other ship recognition methods in terms of recognition accuracy. Show more

Keywords: Ship target recognition, multi-source information, formation information, Bayesian inference, evidence theory

DOI: 10.3233/JIFS-211638

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2331-2346, 2022

Authors: Jin, Zhen-Yu | Yan, Cong-Hua

Article Type: Research Article

Abstract: In this paper, a notion of fuzzifying bornological linear spaces is introduced and the necessary and sufficient condition for fuzzifying bornologies to be compatible with linear structure is discussed. The characterizations of convergence and separation in fuzzifying bornological linear spaces are showed. In particular, some examples with respect to linear fuzzifying bornologies induced by probabilistic normed spaces and fuzzifying topological linear spaces are also provided.

Keywords: Fuzzifying bornological linear spaces, fuzzifying bornological convergence, separation, Product linear fuzzifying bornologies, quotient linear fuzzifying bornologies

DOI: 10.3233/JIFS-211644

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2347-2358, 2022

Authors: Chen, Zhixiong | Tian, Shengwei | Yu, Long | Zhang, Liqiang | Zhang, Xinyu

Article Type: Research Article

Abstract: In recent years, the research on object detection has been intensified. A large number of object detection results are applied to our daily life, which greatly facilitates our work and life. In this paper, we propose a more effective object detection neural network model ENHANCE_YOLOV4. We studied the effects of several attention mechanisms on YOLOV4, and finally concluded that spatial attention mechanism had the best effect on YOLOV4. Therefore, based on previous studies, this paper introduces Dilated Convolution and one-by-one convolution into the spatial attention mechanism to expand the receptive field and combine channel information. Compared with CBAM and BAM, …which are composed of spatial attention and channel attention, this improved spatial attention module reduces model parameters and improves detection capabilities. We built a new network model by embedding improved spatial attention module in the appropriate place in YOLOV4. And this paper proves that the detection accuracy of this network structure on the VOC data set is increased by 0.8%, and the detection accuracy on the coco data set is increased by 7%when the calculation performance is increased a little. Show more

Keywords: DCNN, object detection, spatial attention, dilated convolution, COCO

DOI: 10.3233/JIFS-211648

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2359-2368, 2022

Authors: Wu, Guoqiang | Li, Qingping

Article Type: Research Article

Abstract: Population structure changes interact with economic development, moderate population and reasonable population structure are important guarantees for sustainable social and economic development. The research ignores the specific impact of the change of population age structure on economic growth, and proposes and establishes a population economic function model based on data mining algorithm. Based on the changes of population structure in Liaoning Province in the past 20 years, Grey correlation analysis method is selected. The analysis shows that there is a close relationship between population structure and economic growth. Based on this research, the econometric method is used to construct a …multiple linear regression model to further analyze the specific impact of population structure changes on economic growth. The analysis results show that the total population of urban areas, the total number of employed people in the primary industry, the number of middle school students per 10,000 people, and the total number of employed people in the tertiary industry are the four most significant demographic indicators for the per capita GDP of the study area. There is a significant positive correlation between the total number of employed people in the tertiary industry and per capita GDP and there is a significant negative correlation between the total number of employed people in the primary industry and the number of middle school students per capita and per capita GDP. The impact of other indicators on per capita GDP is not significant. According to the conclusion, countermeasures and suggestions to ease population structure change and promote the coordinated development of population and economy in the study area are put forward. Show more

Keywords: Grey correlation analysis method, data mining algorithm, population economic function, model

DOI: 10.3233/JIFS-211663

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2369-2382, 2022

Authors: Zhou, Daxin | Qian, Yurong | Ma, Yuanyuan | Fan, Yingying | Yang, Jianeng | Tan, Fuxiang

Article Type: Research Article

Abstract: Low-illumination image restoration has been widely used in many fields. Aiming at the problem of low resolution and noise amplification in low light environment, this paper applies style transfer of CycleGAN(Cycle-Consistent Generative Adversarial Networks) to low illumination image enhancement. In the design network structure, different convolution kernels are used to extract the features from three paths, and the deep residual shrinkage network is designed to suppress the noise after convolution. The color deviation of the image can be resolved by the identity loss of CycleGAN. In the discriminator, different convolution kernels are used to extract image features from two paths. …Compared with the training and testing results of Deep-Retinex network, GLAD network, KinD and other network methods on LOL-dataset and Brightening dataset, CycleGAN based on multi-scale depth residuals contraction proposed in this experiment on LOL-dataset results image quality evaluation indicators PSNR = 24.62, NIQE = 4.9856, SSIM = 0.8628, PSNR = 27.85, NIQE = 4.7652, SSIM = 0.8753. From the visual effect and objective index, it is proved that CycleGAN based on multi-scale depth residual shrinkage has excellent performance in low illumination enhancement, detail recovery and denoising. Show more

Keywords: Style migration, cycle-consistent generative adversarial networks, depth residual shrinkage, image enhancement

DOI: 10.3233/JIFS-211664

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2383-2395, 2022

Authors: Ramalingam, Anita | Navaneethakrishnan, Subalalitha Chinnaudayar

Article Type: Research Article

Abstract: Thirukkural, a Tamil classic literature, which was written in 300 BCE is a didactic literature. Though Thirukkural comprises 1330 couplets which are organized into three sections and 133 chapters, in order to retrieve meaningful Thirukkural for a given query in search systems, a better organization of the Thirukkural is needed. This paper lays such a foundation by classifying the Thirukkural into ten new categories called superclasses that is helpful for building a better Information Retrieval (IR) system. The classifier is trained using Multinomial Naïve Bayes algorithm. Each superclass is further classified into two subcategories based on the didactic information. The …proposed classification framework is evaluated using precision, recall and F-score metrics and achieved an overall F-score of 82.33% and a comparison analysis has been done with the Support Vector Machine, Logistic Regression and Random Forest algorithms. An IR system is built on top of the proposed system and the performance comparison has been done with the Google search and a locally built keyword search. The proposed classification framework has achieved a mean average precision score of 89%, whereas the Google search and keyword search have yielded 59% and 68% respectively. Show more

Keywords: Natural language processing, text classification, information retrieval, multinomial naive bayes classifier, the Thirukkural , morphological analysis

DOI: 10.3233/JIFS-211667

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2397-2408, 2022

Authors: Wei, Pengfei | Zeng, Bi | Liao, Wenxiong

Article Type: Research Article

Abstract: Intent detection and slot filling are recognized as two very important tasks in a spoken language understanding (SLU) system. In order to model these two tasks at the same time, many joint models based on deep neural networks have been proposed recently and archived excellent results. In addition, graph neural network has made good achievements in the field of vision. Therefore, we combine these two advantages and propose a new joint model with a wheel-graph attention network (Wheel-GAT), which is able to model interrelated connections directly for single intent detection and slot filling. To construct a graph structure for utterances, …we create intent nodes, slot nodes, and directed edges. Intent nodes can provide utterance-level semantic information for slot filling, while slot nodes can also provide local keyword information for intent detection. The two tasks promote each other and carry out end-to-end training at the same time. Experiments show that our proposed approach is superior to multiple baselines on ATIS and SNIPS datasets. Besides, we also demonstrate that using bi-directional encoder representation from transformer (BERT) model further boosts the performance of the SLU task. Show more

Keywords: Spoken language understanding, graph neural network, attention mechanism, joint learning

DOI: 10.3233/JIFS-211674

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2409-2420, 2022

Authors: Hou, Long | Yu, Long | Tian, Shengwei | Zhang, Yanhan

Article Type: Research Article

Abstract: Underwater image enhancement has always been a hot spot in underwater vision research. However, due to complicated underwater environment, a lot of problems such as the color distortion and low brightness of underwater raw images are very likely to occur. In response to the above situation, we proposed a generative adversarial network that integrated multiple attention to enhance underwater images. In the generator, we introduced multi-layer dense connections and CSAM modules, of which the former could capture more detailed features and make use of previous features, while the latter could improve the utilization of the feature map. Meanwhile, we improved …the enhancement effect of the generated image by combining VGG19 content loss function and SmoothL1 loss function. Finally, we verified the effectiveness of the proposed model through qualitative and quantitative experiments, and compared the results with the performance of several latest models. The results show that the methods proposed in this paper are superior to the existing methods. Show more

Keywords: Deep learning, attentional mechanism, underwater image, image enhancement.

DOI: 10.3233/JIFS-211680

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2421-2433, 2022

Authors: Wei, Jinpeng | Qu, Shaojian | Jiang, Shan | Feng, Can | Xu, Yuting | Zhao, Xiaohui

Article Type: Research Article

Abstract: Individual opinion is one of the vital factors influencing the consensus in group decision-making, and is often uncertain. The previous studies mostly used probability distribution, interval distribution or uncertainty distribution function to describe the uncertainty of individual opinions. However, this requires an accurate understanding of the individual opinions distribution, which is often difficult to satisfy in real life. In order to overcome this shortcoming, this paper uses a robust optimization method to construct three uncertain sets to better characterize the uncertainty of individual initial opinions. In addition, we used three different aggregation operators to obtain collective opinions instead of using …fixed values. Furthermore, we applied the numerical simulations on flood disaster assessment in south China so as to evaluate the robustness of the solutions obtained by the robust consensus models that we proposed. The results showed that the proposed models are more robust than the previous models. Finally, the sensitivity analysis of uncertain parameters was discussed and compared, and the characteristics of the proposed models were revealed. Show more

Keywords: Group decision making, aggregation operator, consensus models, uncertainty set, robust optimization

DOI: 10.3233/JIFS-211704

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2435-2449, 2022

Authors: Yang, Gang | Li, Tianbin | Ma, Chunchi | Meng, Lubo | Zhang, Hang | Ma, Junjie

Article Type: Research Article

Abstract: Accurate prediction of surrounding rock grades holds great significance to tunnel construction. This paper proposed an intelligent classification method for surrounding rock based on one-dimensional convolutional neural networks (1D CNNs). Six indicators collected in some tunnel construction sites are considered, and the degree of linear correlation between these indicators has been analyzed. The improved one-hot encoding method is put forward for transforming these non-image indicators into one-dimensional structural data and avoiding the sampling error in the indicators of surrounding rock collected in the field. We found that the 1D CNNs model based on the improved one-hot encoding method can best …extract the features of surrounding rock classification indicators (in terms of both accuracy and efficiency). We applied the well-trained classification model of tunnel surrounding rock to a series of expressway tunnels in China, and the results show that our model could accurately predict the surrounding rock grade and has great application value in the construction of tunnel engineering. It provides a new research idea for the prediction of surrounding rock grades in tunnel engineering. Show more

Keywords: Tunnel engineering, surrounding rock classification, index-based classification, one-dimensional convolutional neural network, non-image data

DOI: 10.3233/JIFS-211718

Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 2451-2469, 2022