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| 1 | Clustering by Fast Search and Find of Density Peaks with Data Field显示文摘A clustering algorithm named 'Clustering by fast search and find of density peaks' is for finding the centers of clusters quickly. Its accuracy excessively depended on the threshold, and no efficient way was given to select its suitable value, i.e., the value was suggested be estimated on the basis of empirical experience. A new way is proposed to automatically extract the optimal value of threshold by using the potential entropy of data field from the original dataset. For any dataset to be clustered, the threshold can be calculated from the dataset objectively instead of empirical estimation. The results of comparative experiments have shown the algorithm with the threshold from data field can get better clustering results than with the threshold from empirical experience. | WANG Shuliang WANG Dakui LI Caoyuan LI Yan DING Gangyi | 2016 | Chinese Journal of Electronics2016，25，3： | 60 |
| 2 | Cavitation flow simulation for a centrifugal pump at a low flow rate显示文摘A computational model on the basis of the combination of the full cavitation model and the modified re-normalization group (RNG) k-ε turbulence model are used to simulate the cavitating flow in a centrifugal pump at a low flow rate. A filter function is introduced for the RNG k-ε turbulence model in order to consider the compressibility in the cavitating flow. The calculated values of the net positive suction head available (H NPSHa ) agree well with the experimental measurements. The cavities in the impeller are obtained and their evolvement with H NPSHa are revealed. | TAN Lei ZHU BaoShan CAO ShuLiang WANG YuMing | 2013 | Chinese Science Bulletin2013，58，8： | 20 |
| 3 | Geo-rough Space显示文摘Rough set is a new approach to uncertainties in spatial analysis.In this paper,rough set symbols are simplified and standardized in terms of rough interpretation and specialized indication.Rough spatial entities and their topological relationships are also proposed in rough space,thus a universal intersected equation is developed,and rough membership function is further extended with the gray scale in our case study.We complete three works.First,a set of simplified rough symbols is advanced on the basis of existing rough symbols.Second,rough spatial entity is put forward to study the real world as it is,without forcing uncertainties into crisp set.Third,rough spatial topological relationships are studied by using rough matrix and their figures.The relationships are divided into three types,crisp entity and crisp entity (CC),rough entity and crisp entity (RC),and rough entity and rough entity (RR).A universal intersected equation is further proposed.Finally,the maximum and minimum maps of river thematic classification are generated via rough membership function and rough relationships in our case study. | WANG Shuliang LI Deren SHI Wenzhong WANG Xinzhou | 2003 | Geo-Spatial Information Science2003，6，1： | 12 |
| 4 | Influence of Blade Wrap Angle on Centrifugal Pump Performance by Numerical and Experimental Study显示文摘The existing research on improving the hydraulic performance of centrifugal pumps mainly focuses on the design method and the parameter optimization.The traditional design method for centrifugal impellers relies more on experience of engineers that typically only satisfies the continuity equation of the fluid.In this study,on the basis of the direct and inverse iteration design method which simultaneously solves the continuity and motion equations of the fluid and shapes the blade geometry by controlling the wrap angle,three centrifugal pump impellers are designed by altering blade wrap angles while keeping other parameters constant.The three-dimensional flow fields in three centrifugal pumps are numerically simulated,and the simulation results illustrate that the blade with larger wrap angle has more powerful control ability on the flow pattern in impeller.The three pumps have nearly the same pressure distributions at the small flow rate,but the pressure gradient increase in the pump with the largest wrap angle is smoother than the other two pumps at the design and large flow rates.The pump head and efficiency are also influenced by the blade wrap angle.The highest head and efficiency are also observed for the largest angle.An experiment rig is designed and built to test the performance of the pump with the largest wrap angle.The test results show that the wide space of its efficiency area and the stability of its operation ensure the excellent performance of the design method and verify the numerical analysis.The analysis on influence of the blade wrap angle for centrifugal pump performance in this paper can be beneficial to the optimization design of the centrifugal pump. | TAN Lei ZHU Baoshan CAO Shuliang BING Hao WANG Yuming | 2014 | Chinese Journal of Mechanical Engineering2014，27，1： | 10 |
| 5 | A Collaborative Filtering Recommendation Algorithm Based on Item and Cloud Model显示文摘Recommender system is an important content in the research of E-commerce technology. Collaborative filtering recom-mendation algorithm has already been used successfully at recom-mender system. However,with the development of E-commerce,the difficulties of the extreme sparsity of user rating data have become more and more severe. Based on the traditional similarity measuring methods,we introduce the cloud model and combine it with the item-based collaborative filtering recommendation algorithms. The new collaborative filtering recommendation algorithm based on item and cloud model (IC-Based CF) computes the similarity de-gree between items by comparing the statistical characteristic of items. The experimental results show that this method can improve the performance of the present item-based collaborative filtering algorithm with extreme sparsity of data. | WANG Shuliang XIE Yuan FANG Meng | 2011 | Wuhan University Journal of Natural Sciences2011，16，1： | 9 |
| 6 | Surface crack imaging based on delayed temperature difference at symmetric points by laser spot thermography显示文摘Laser spot thermography is a novel technique for the detection of surface cracks with a laser to heat sample locally and with an IR camera to record the surface temperature distribution. Common methods to characterize cracks are only suitable for the situation that the laser scanning path is vertical to the crack. But due to the randomness of cracks,when the scanning path is parallel to the crack,surface cracks cannot be detected by these methods. To tackle this problem,a method is presented which is suitable for the situation that the scanning path is parallel to crack. The main idea is to evaluate the crack-caused asymmetries of the surface temperature distribution. The effect of temperature gradient and the maximum scanning interval are analyzed by a 2D simulation. A new crack imaging technique is presented that is based on delayed temperature difference at symmetric points to characterize the crack in the thermal image. Compared well with those obtained by the spatial first derivative method,experimental results are shown to efficiently prove this method. | WANG Xiaona WANG Xiaoning HOU Dexin YE Shuliang | 2014 | Instrumentation2014，1，2： | 5 |
| 7 | Radar maneuvering target tracking algorithm based on human cognition mechanism显示文摘Radar Maneuvering Targets Tracking(RMTT) in clutter is a quite challenging issue due to the errors in the models and the varying dynamics of the processes. Modern radar tracking system calls for the adaptive signal and data processing algorithm urgently to adapt the uncertainty of the environment. The mechanism of human cognition can help persons cope with the similar diffi-culties in visual tracking. Inspired by human cognition mechanism, a comprehensive method for RMTT is proposed. In the method, the model transition probability in Interacting Multiple Model(IMM) and the validation gate can be adjusted dynamically with target maneuver;the waveform in radar transmitter can vary with the perception of the environment. Experimental results in cluttered scenes show that the proposed algorithm is more accurate for perceiving the environment and targets, and the waveform selection algorithm is better than that with fixed waveform. | Shuliang WANG Daping BI Huailin RUAN Mingyang DU | 2019 | Chinese Journal of Aeronautics2019，32，7： | 4 |
| 8 | Influence of axial distance on pre-whirl regulation by the inlet guide vanes for a centrifugal pump显示文摘The valuation of the hydraulic performance of a centrifugal pump with pre-whirl regulation of the inlet guide vanes was studied experimentally by varying the pre-whirl angle from -60° to 60° with distances between the inlet guide vanes and the impeller inlet of 280 mm, 380 mm and 460 mm. The efficiency-flow curves and the characteristic curves were obtained for the pump for various operation conditions. The experiment results demonstrated that the pre-whirl regulation widened the high efficiency zone and improved the hydraulic performance for off-design conditions with the proper pre-whirl angle. The axial distance between the inlet guide vanes and the impeller inlet influenced the pre-whirl regulation effect of the inlet guide vanes with the best pre-whirl regulation effect obtained for an axial distance of 380 mm. These results showed that an appropriate axial distance between the inlet guide vanes and the impeller inlet can improve the fluid flow at the impeller entrance with pre-whirl regulation for centrifugal pumps. | TAN Lei CAO ShuLiang WANG YuMing ZHU BaoShan | 2012 | Science China(Technological Sciences)2012，55，4： | 4 |
| 9 | DEVELOPMENT OF A DATA MINING METHOD FOR LAND CONTROL显示文摘Land resources are facing crises of being misused,especially for an intersection area between town and country,and land control has to be enforced.This paper presents a development of data mining method for land control.A vector_match method for the prerequisite of data mining i.e., data cleaning is proposed,which deals with both character and numeric data via vectorizing character_string and matching number.A minimal decision algorithm of rough set is used to discover the knowledge hidden in the data warehouse.In order to monitor land use dynamically and accurately,it is suggested to set up a real_time land control system based on GPS,digital photogrammetry and online data mining.Finally,the means is applied in the intersection area between town and country of Wuhan city,and a set of knowledge about land control is discovered. | Wang Shuliang Wang Xinzhou Shi Wenzhong | 2001 | Geo-Spatial Information Science2001，4，1： | 3 |
| 10 | HGCUDF: Hierarchical Grid Clustering Using Data Field显示文摘A new clustering algorithm of Hierarchical grid clustering using data field(HGCUDF) is proposed. Under the distributed characteristics of data points on objects, the hierarchical grids divide and conquer the large datasets in their hierarchical subsets, which reduces the scope in search of the clustering centers, and minifies the area of data space for generating data field. The compared experiments show that HGCUDF computes the grids rather than retrieves all data from database, for improving the efficiency. | WANG Shuliang FAN Jinghua FANG Meng YUAN Hanning | 2014 | Chinese Journal of Electronics2014，23，1： | 2 |
| 11 | Feature Selection with Data Field显示文摘A new feature selection method is proposed for high-dimensional data clustering on the basis of data field. With the potential entropy to evaluate the importance of feature subsets, features are filtered by removing unimportant features or noises from the original datasets. Experiments show that the proposed method can sharply reduce the number of dimensions and effectively improve the clustering performance on WDBC dataset. | YUAN Hanning WANG Shuliang LI Ying FAN Jinghua | 2014 | Chinese Journal of Electronics2014，23，4： | 2 |
| 12 | of big data 显示文摘 | Wang Shuliang Yuan Harming | 2014 | International Mining2014，10，4： | 1 |
| 13 | A Hybrid Aspect Based Latent Factor Model for Recommendation显示文摘Recommender system has been recognized as a superior way for solving personal information overload problem.More and more aspect-based models are leveraging user ratings and extracting information from review texts to support recommendation.Aspect-based latent factor model predicts user ratings relying on latent aspect inferred from user reviews.It usually constructs only a single global model for all users,which may be not sufficient to capture the diversity of users'preferences and leave some items or users be badly modeled.We propose a Hybrid aspect-based latent factor model(HALFM),which jointly optimizes the Global aspect-based latent factor model(GALFM)and the Local Aspect-based Latent Factor Models(LALFM),their user-specific combination,and the assignment of users to the LALFMs.HALFM makes prediction by combining user-specific of GALFM and many LALFMs.Experimental results demonstrate that the proposed HALFM outperforms most of aspectbased recommendation techniques in rating prediction. | YUAN Hanning CHEN Zhengyu YANG Jingting WANG Shuliang GENG Jing KE Chuwen | 2020 | Chinese Journal of Electronics2020，29，3： | 1 |
| 14 | (2001) On spatial data mining and knowledge discovery 显示文摘 | Li Deren Wang Shuliang Shi Wenzhong | 2001 | Geomatics and Information Science of Wuhan University2001，26，6： | 1 |
| 15 | Cloud model- based spatial data mining显示文摘 | Wang Shuliang Li Deren Shi Wenzhong | 2003 | Geographical Information Science2003，9，2： | 1 |
| 16 | Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller 显示文摘 | YU Zhiyi WANG Guoyu CAO Shuliang | 2009 | Front Mech Eng China2009，4，1： | 1 |
| 17 | Investigation on the rapid degradation of congo red catalyzed by activated carbon powder under microwave irradiation显示文摘 | Zhaohong Zhang Yabo Shan Jun Wang Hongjie Ling Shuliang Zang Wei Gao Zhe Zhao Huachun Zhang | 2007 | Journal of Hazardous Materials2007，，1： | 1 |
| 18 | Effect of Pd loading and precursor on the catalytic performance of Pd/WO3-ZrO2 catalysts for selective oxidation of ethylene显示文摘 | WANG Lixia XU Shuliang CHU Wenling | | 0，，1： | 1 |
| 19 | Vulnerability analy- sis of interdependent infrastructure systems under edge attack strategies 显示文摘 | Wang Shuliang Liu Hong Chen Xueguang | 2013 | Safety Science2013，51，1： | 1 |
| 20 | Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller显示文摘 | Yu Zhiyi Wang Guoyu Cao Shuliang | 2009 | Front Mech Eng China2009，4，1： | 1 |
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