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| 1 | Executive compensation and corporate governance in China显示文摘 | Martin J. Conyon Lerong He | 2011 | Journal of Corporate Finance2011，，4： | 4 |
| 2 | PSVM: a preference-enhanced SVM model using preference data for classification显示文摘Classification is an essential task in data mining, machine learning and pattern recognition areas.Conventional classification models focus on distinctive samples from different categories. There are fine-grained differences between data instances within a particular category. These differences form the preference information that is essential for human learning, and, in our view, could also be helpful for classification models. In this paper, we propose a preference-enhanced support vector machine(PSVM), that incorporates preference-pair data as a specific type of supplementary information into SVM. Additionally, we propose a two-layer heuristic sampling method to obtain effective preference-pairs, and an extended sequential minimal optimization(SMO)algorithm to fit PSVM. To evaluate our model, we use the task of knowledge base acceleration-cumulative citation recommendation(KBA-CCR) on the TREC-KBA-2012 dataset and seven other datasets from UCI,Stat Lib and mldata.org. The experimental results show that our proposed PSVM exhibits high performance with official evaluation metrics. | Lerong MA Dandan SONG Lejian LIAO Jingang WANG | 2017 | Science China(Information Sciences)2017，60，12： | 3 |
| 3 | Dynamic Evaluation and Analysis of Regional Innovation Capability in Eastern China from the Perspective of High-quality Development显示文摘The economy of China has turned to the stage of high-quality development. In this sense,the connotation of regional innovation capacity should reflect more aspects, such as better economic effectiveness, people-centered philosophy of development and better living conditions. This study aims at establishing the evaluation index system of regional innovation capacity under high-quality perspective.Then the dynamic evaluation method based on gray correlation degree and TOPSIS is improved. And the improved method is applied to evaluate the regional innovation capacity under high-quality development perspective. The results show that: 1) The regional innovation capacity of Jiangsu, Zhejiang,Shanghai and Guangdong under high-quality development perspective is better than other regions,while the regional innovation capacity of Beijing-Tianjin-Hebei is imbalanced. Regional innovation capability of Fujian, Shandong, and Hainan from a high-quality perspective is at the middle and lower levels. 2) From the perspective of development trends, the gap of regional innovation capacity between Beijing, Jiangsu, Zhejiang, Shanghai, Guangdong and Fujian, Hebei, Shandong is gradually narrowing.3) An in-depth analysis of the regional innovation capability of the eastern provinces and cities from the perspective of high-quality development through different dimensions shows that Beijing, Guangdong, Jiangsu perform well in all dimensions, while Fujian and Hainan need to pay more attention to innovation input and the creation of a better innovation environment to enhance innovation output and promote innovation effectiveness. At last, based on above analysis, relevant policy recommendations are proposed. | Linming XU Jincheng LU Meijuan LI Lerong HE | 2021 | Journal of Systems Science and Information2021，9，6： | 2 |
| 4 | Decomposing Income Inequality and Policy Implications in Rural China显示文摘Using village data from samples covering 6 provinces,36 counties and 216 townships,the income inequalities within and between townships in rural China are assessed. The Theil index and the mean logarithmic deviation methods enable us to test income inequality at the township level,and to decompose it into intra-regional and inter-regional at county and provincial levels. In the present paper,we also decompose income inequalities between and within the nationally designated poor counties (NDPC). The results show that approximately two-thirds of the income inequality in rural China would be eliminated if measures and policies were targeted at the county level. This study also confirms the rationale that China's poverty alleviation strategy of focusing on poor counties based on the inequalities between NDPC and non-NDPC accounts for the most inter-province inequality. | Lerong Yu Renfu Luo Linxiu Zhang | 2007 | China & World Economy2007，15，2： | 2 |
| 5 | A Latent Entity-Document Class Mixture of Experts Model for Cumulative Citation Recommendation显示文摘Knowledge Bases(KBs) are valuable resources of human knowledge which contribute to many applications. However, since they are manually maintained, there is a big lag between their contents and the upto-date information of entities. Considering a target entity in KBs, this paper investigates how Cumulative Citation Recommendation(CCR) can be used to effectively detect its worthy-citation documents in large volumes of stream data. Most global relevant models only consider semantic and temporal features of entity-document instances,which does not sufficiently exploit prior knowledge underlying entity-document instances. To tackle this problem,we present a Mixture of Experts(ME) model by introducing a latent layer to capture relationships between the entity-document instances and their latent class information. An extensive set of experiments was conducted on TREC-KBA-2013 dataset. The results show that the model can significantly achieve a better performance gain compared to state-of-the-art models in CCR. | Lerong Ma Lejian Liao DANDan Song Jingang Wang | 2018 | Tsinghua Science and Technology2018，23，6： | 2 |
| 6 | Pathogenesis of hirschsprungs disease 显示文摘 | Martuccielb G Ceccherim I Lerong M | 2000 | Pediatr Surg2000，55，： | 1 |
| 7 | Executive compensation and corporate governance in China显示文摘 | MARTIN J CONYON LERONG He | 2011 | Journal of Corporate Finance2011，17，： | 1 |
| 8 | PolyvasculaR Evaluation for Cognitive Impairment and vaScular Events (PRECISE)-a population-based prospective cohort study: rationale, design and baseline participant characteristics显示文摘Background and purpose Cardiovascular diseases and dementia are two major diseases in the elderly.Atherosclerosis is associated with future vascular events and cognitive impairment.The PolyvasculaR Evaluation for Cognitive Impairment and vaScular Events(PRECISE)study is a population-based prospective cohort study with comprehensive evaluation of multiterritorial artery stenosis and plaque using advanced vascular imaging techniques and prospective collection of vascular events and cognitive assessments.Methods Between May 2017 and September 2019,the PRECISE study enrolled 3067 community-dwelling adults with ages between 50 and 75 years cluster sampled from six villages and four communities of Lishui city in China.Data are collected in face-to face interviews at baseline,2-year and 4-year follow-up visits.Brain MRI including high-resolution sequences for intracranial and carotidal arteries and CT angiography for thoracoabdominal arteries were performed at baseline and will be rescanned after 4 years.Cardiovascular/cerebrovascular events and cognitive assessment will be prospectively collected after the enrollment.Blood and urine samples were collected and biomarkers were tested at baseline.Results A total of 3067 subjects were enrolled,among which 53.5%were female with an average age of 61.2±6.7 years.Among them,2.8%,8.1%,43.1%and 21.6%had a history of stroke,coronary heart diseases,hypertension and diabetes mellitus,respectively.Conclusions The PRECISE study is a population-based prospective cohort study with comprehensive evaluation of atherosclerotic stenosis and plaque using advanced vascular imaging techniques.Data from this cohort provide us an opportunity to precisely evaluate polyvascular atherosclerosis and its association with future vascular events and cognitive impairment. | Yuesong Pan Jing Jing Xueli Cai Yilong Wang Suying Wang Xia Meng Chunlai Zeng Jiong Shi Jiansong Ji Jinxi Lin Lingchun Lyu Zhe Zhang Lerong Mei Shiping Li Shan Li Wanlin Zhu Hao Li Tiemin Wei Yongjun Wang | 2021 | Stroke & Vascular Neurology2021，6，1： | 1 |
| 9 | Synthesis and characterization of yttrium-based cubic mesophase by using anionic surfactant as template 显示文摘 | Tongwen W Lerong D | 2002 | Collid and Surfaces A: Physicochemical and Engineering Aspects2002，209，1： | 1 |
| 10 | Compensation Committee and CEO Compensative Incentive in US Entrepreneurial Firms显示文摘 | CONYON M J LERONG H | 2004 | Journal of Management Accounting2004，16，2： | 1 |
| 11 | Compensation committee and CEO compensative incentive in US entrepreneurial firms显示文摘 | Conyon M J and Lerong H | 2004 | Journal of Management Accounting2004，16，： | 1 |
| 12 | Executive compensation and corporate governance in China显示文摘 | Martin J. Conyon Lerong He | 2011 | Journal of Corporate Finance2011，，4： | 1 |
| 13 | Pathogenesis of Hirschsprun97s disease显示文摘 | Martucciello G Ceccherim I Lerong M | 2000 | J Pediatr Surg2000，55，： | 1 |
| 14 | Do founders matter? A study of executive compensation, governance structure and firm performance显示文摘 | Lerong He | 2007 | Journal of Business Venturing2007，，3： | 1 |
| 15 | Synthesis and characterization of yttrium -based cubic mesophase by using anionic surfaetant as template 显示文摘 | Tongwen W Lerong D | 2002 | Collid and Surfaces A: Physieochemical and Engineering Aspects2002，209，1： | 1 |
| 16 | Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems显示文摘Line commutated converter based high-voltage direct-current(LCC-HVDC)transmissions are prone to harmonic oscillation under weak grids.Impedance modeling is an effective method for assessing interaction stability.Firstly,this paper proposes an improved calculation method for the DC voltage and AC currents of commutation stations to address the complex linearization of the commutation process and constructs an overall harmonic state-space(HSS)model of an LCC-HVDC.Based on the HSS model,the closed-loop AC impedances on the LCC-HVDC sending and receiving ends are then derived and verified.The impedance characteristics of the LCC-HVDC are then analyzed to provide a physical explanation for the harmonic oscillation of the system.The effects of the grid strength and control parameters on system stability are also analyzed.To improve the impedance characteristics and operating stability of the LCC-HVDC system,a virtual impedance based stability enhancement control is proposed,and a parameter design method is considered to ensure satisfactory phase margins at both the sending and receiving ends.Finally,simulation results are presented to verify the validity of the impedance model and virtual impedance based stability enhancement control. | Yifeng Liu Xiaoping Zhou Quan Chen Hanhang Yin Lerong Hong Hao Tian Ying Chen Siyuan Li | 2024 | Journal of Modern Power Systems and Clean Energy2024，12，1： | 0 |
| 17 | DC Current Order Optimization Based Strategy for Recovery Performance Improvement of LCC-HVDC Transmission Systems显示文摘For the safe and fast recovery of line commutated converter based high-voltage direct current(LCC-HVDC)transmission systems after faults,a DC current order optimization based strategy is proposed.Considering the constraint of electric and control quantities,the DC current order with the maximum active power transfer is calculated by Thevenin equivalent parameters(TEPs)and quasi-state equations of LCC-HVDC transmission systems.Meanwhile,to mitigate the subsequent commutation failures(SCFs)that may come with the fault recovery process,the maximum DC current order that avoids SCFs is calculated through imaginary commutation process.Finally,the minimum value of the two DC current orders is sent to the control system.Simulation results based on PSCAD/EMTDC show that the proposed strategy mitigates SCFs effectively and exhibits good performance in recovery. | Renlong Zhu Xiaoping Zhou Shuchen Luo Lerong Hong Hanhang Yin Yifeng Liu | 2023 | Journal of Modern Power Systems and Clean Energy2023，11，3： | 0 |
| 18 | Entity Burst Discriminative Model for Cumulative Citation Recommendation显示文摘Knowledge base acceleration-cumulative citation recommendation(KBA-CCR)aims to detect citation-worthiness documents from a chronological stream corpus for a set of target entities in a knowledge base.Most previous works only consider a number of semantic features between documents and target entities in the knowledge base,and then use powerful machine learning approaches such as logistic regression to classify relevant documents and non-relevant documents.However,the burst activities of an entity have been proved to be a significant signal to predict potential citations.In this paper,an entity burst discriminative model(EBDM)is presented to substantially exploit such burst features.The EBDM presents a new temporal representation based on the burst features,which can capture both temporal and semantic correlations between entities and documents.Meanwhile,in contrast to the bag-of-words model,the EBDM can significantly decrease the number of non-zero entries of feature vectors.An extensive set of experiments were conducted on the TREC-KBA-2012 dataset.The results show that the EBDM outperforms the performance of the state-of-the-art models. | Lerong Ma | 2019 | Journal of Beijing Institute of Technology2019，28，2： | 0 |
| 19 | Calculation Method for Commutation Failure Fault Level in LCC-HVDC System Under Single-line-to-ground Faults Considering DC Current Variation显示文摘Earlier studies have reported some calculation methods for commutation failure fault level(CFFL) in line-commutated-converter based high-voltage direct current(LCCHVDC) system under single-line-to-ground(SLG) faults. The accuracy of earlier methods is limited because they only consider the commutating voltage drop and phase shift, while neglecting the DC current variation. Hence, this paper proposes a CFFL calculation method under SLG faults considering DC current variation, for better planning and designing of LCC-HVDC systems. First, the fault commutating voltage magnitude and phase shift are calculated. Then, the fault DC voltage during different commutation processes is deduced. Based on the commutating voltage magnitude and phase shift, and DC voltage during different commutation processes under SLG faults, the characteristics of CFFL with different fault time are demonstrated and analyzed. Next, the transient time-domain response of the DC current after the fault is obtained based on the DC transmission line model. Discrete commutation processes are constructed based on the commutation voltage-time area rule to solve the extinction angle under different fault levels and fault time. Finally, the CFFL is calculated considering the fault time, commutating voltage drop, phase shift, and DC current variation. The accuracy of the proposed method compared with the traditional method is validated based on the CIGRE benchmark model in PSCAD/EMTDC. | Renlong Zhu Xiaoping Zhou Hanhang Yin Lerong Hong An Luo Yandong Chen Hanting Peng | 2023 | Journal of Modern Power Systems and Clean Energy2023，11，6： | 0 |
| 20 | Commutation Failure Mitigation Method Based on Imaginary Commutation Process显示文摘The commutation failure(CF) mitigation effectiveness is normally restricted by the delay of extinction angle(EA)measurement or the errors of existing prediction methods for EA or firing angle(FA). For this purpose, this paper proposes a CF mitigation method based on the imaginary commutation process. For each sample point, an imaginary commutation process is constructed to simulate the actual commutation process.Then, the imaginary EA is calculated by comparing the imaginary supply voltage-time area and the imaginary demand voltage-time area, which can update the imaginary EA earlier than the measured EA. In addition, the proposed method considers the impacts of commutation voltage variation, DC current variation, and phase angle shift of commutation voltage on the commutation process, which can ensure a more accurate EA calculation. Moreover, the DC current prediction is proposed to improve the CF mitigation performance under the single-phase AC faults. Finally, the simulation results based on CIGRE model prove that the proposed method has a good performance in CF mitigation. | Renlong Zhu Xiaoping Zhou Haitao Xia Lerong Hong Hanhang Yin Lingfeng Deng Yifeng Liu | 2022 | Journal of Modern Power Systems and Clean Energy2022，10，5： | 0 |
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