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International Conference on Management of E-Commerce and E-Goverment

作者： Wu, Shihan Liu, Dexi Jiao, Xianpei Jiangxi Key Laboratory of Data and Knowledge Engineering School of Information Technology Jiangxi University of Finance and Economics Nanchang Jiangxi China

ISBN: (纸本)9780769542454

XML Retrieval is becoming the focus study of the field of Information Retrieval and database. Summarization of the results which come from the XML search engines will alleviate the read burden of user's. However, as the basis of this study, the construction of the query-oriented XML text summarization corpus has not yet received enough attention. In this paper, we introduce our works on constructing this kind of corpus, including the selection of topics and XML elements/documents, construction process and the feature of the constructed corpus. Up to now, the corpus has 25 English query topics, including 422 elements for summarization, and 32 Chinese topics which including 402 elements. For each topic, 4 pieces of extracted summaries and 4 pieces of generated summaries are made manually by 4 experts. © 2010 IEEE.

关键词： XML

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Cooperative Game Analysis on Regional Economic Development and Environmental Governance

Cooperative Game Analysis on Regional Economic Development a...

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International Conference on Renewable Energy and Environmental Technology (REET 2013)

作者： Qi, Ya-wei Jiangxi Univ Finance & Econ Sch Informat Technol Jiangxi Key Lab Data & Knowledge Engn Nanchang Peoples R China

ISBN: (纸本)9783037859124

This paper analyzes formation conditions of regional economic development and trans-boundary environmental pollution governance cooperation mechanism by building a cooperative game model and numerical calculation. Net utility of local governments is the difference between economic utility and trans-boundary pollution governance cost, and coalition help local government expand the increment of economic utility and conserve loss of environment utility. This paper use Shapley value method to allocate net utility rising from cooperation between local governments. When the utility of local governments participating in cooperation is greater compared to not participating in cooperation, local governments cooperate for regional economic development and environmental governance.

关键词： Environmental governance Cooperative game Trans-boundary pollution Shapley Value

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Minimizing XML queries using a family of constraints

Minimizing XML queries using a family of constraints

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4th International Conference on Fuzzy Systems and knowledge Discovery

作者： Liu, Xiping Wan, Changxuan Jiangxi Univ Finance & Econ Sch Informat Technol Jiangxi Key Lab Data & Knowledge Engn Nanchang Peoples R China

ISBN: (纸本)0769528740

An effective way to optimize XML queries is to minimize XML queries. In this paper we improve redundance elimination in XPath queries greatly by incorporating two novel kinds of constraints: parent constraint and sibling constraint, and by extending the tractable fragment to include descendant-or self axis. The two novel kinds of constraints, together with child constraint and descendant constraint, form a family of constraints, which complicate the problem but offer possibilities for further minimization. Two techniques, tree augmentation and simulation augmentation, are employed to cope with constraints. We elaborate on the minimizing algorithms and running efficiencies both in the absence and in the presence of various kinds of constraints.

关键词： XML

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Factor decomposition of regional carbon emissions from energy consumption for China

Factor decomposition of regional carbon emissions from energ...

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3rd International Conference on Energy and Environmental Protection, ICEEP 2014

作者： Qi, Ya-Wei School of Information Technology Jiangxi Key Laboratory of Data and Knowledge Engineering Jiangxi University of Finance and Economics Nanchang China

ISBN: (纸本)9783038351375

This paper calculates the carbon emissions from energy consumption of 30 provinces in China through 2000-2010, and research correlation of factors such as regional economic gap and regional characteristics of carbon emissions in the process of regional economic coordinated development. The LMDI decomposition model is used to decompose the growth rate of China's carbon emissions into 4 types of driving factors, i.e. GDP, industrial pollutants emission intensity, industrial structure and imbalance of regional economic development, to analyze influence of scale effect, technical effect, industrial structure effect and regional spatial structure effect on carbon emissions in the process of China's regional economic development. The results show that: The scale effect is determinants of carbon emissions increasing. The technical effect is the most important force to inhibit the increment of carbon emissions. Industrial structure effect and regional spatial structure effect on carbon emissions are not yet stable, but have a certain pull impact on increasing carbon emissions. © (2014) Trans Tech Publications, Switzerland.

关键词： Energy utilization

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XML Node Semantic Weight Model Based on VSM

XML Node Semantic Weight Model Based on VSM

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2nd International Conference on Management of e-Commerce and e-Government

作者： Lai Xinfeng Wan Changxuan Liu Dexi Jiangxi Univ Finance & Econ Sch Informat Technol Nanchang 330013 Jiangxi Peoples R China JXUFE Jiangxi Key Lab Data & Knowledge Engn Nanchang 330013 Jiangxi Peoples R China

ISBN: (纸本)9780769533667

XML has become an important format for exchange data. Ranking of XML search results directly relates to XML information retrieval performance. Most of the existing ranking models consider words statistical characteristics in the XML document, but they do not consider position of the node a word belongs to. That is to say, all of nodes in XML document have the equal importance. However, different node plays different role in the entire XML document. So, the same content in different node should have different weight. It means different nodes should have different node semantic weight. In this paper, we present a VSM based method for XML node semantic weight (XNSW-VSM), which is scaled by the similarity between the node and the whole document. Experiment data were selected from Wiki data sets. The Pearson correlation coefficient between semantic results given by experts and the model results is 0.827. It shows the node semantic weight model can analyze the importance of node in XML document and it will be helpful for improving ranking results.

关键词： XML Node Node Semantic Weight VSM

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Cluster labeling extraction and ranking feature selection for high quality XML pseudo relevance feedback fragments set

Cluster labeling extraction and ranking feature selection fo...

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9th International Conference on Advanced data Mining and Applications, ADMA 2013

作者： Zhong, Minjuan Wan, Changxuan Liu, Dexi Liao, Shumei Luo, Siwen School of Information Technology Jiangxi Key Laboratory of Data and Knowledge Engineering Jiangxi University of Finance and Economics Nanchang China

ISBN: (纸本)9783642539169

In traditional pseudo feedback, the main reason of the topic drift is the low quality of the feedback source. Clustering search results is an effective way to improve the quality of feedback set. For XML data, how to effectively perform clustering algorithm and then identify good xml fragments from the clustering results is a intricate problem. This paper mainly focus on the latter problem. Based on k-mediod clustering results, This work firstly proposes an cluster label extraction method to select candidate relevant clusters. Secondly, multiple ranking features are introduced to assist the related xml fragments identification from the candidate clusters. Top N fragments compose the high quality pseudo feedback set finally. Experimental results on standard INEX test data show that in one hand, the proposed cluster label extraction method could obtain proper cluster key terms and lead to appropriate candidate cluster selection. On the other hand, the presented ranking features are beneficial to the relevant xml fragments identification. The quality of feedback set is ensured. © 2013 Springer-Verlag.

关键词： Clustering algorithms

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Group Event Recommendation in Event-Based Social Networks Considering Unexperienced Events

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IEEE ACCESS 2019年 7卷 96650-96671页

作者： Liao, Guoqiong Huang, Xiaomei Mao, Mingsong Wan, Changxuan Liu, Xiping Liu, Dexi Jiangxi Univ Finance & Econ Sch Informat Management Nanchang 330013 Jiangxi Peoples R China Jiangxi Univ Finance & Econ Jiangxi Prov Key Lab Data & Knowledge Engn Nanchang 330013 Jiangxi Peoples R China Jiangxi Normal Univ Coll Math & Informat Sci Nanchang 330022 Jiangxi Peoples R China

As users in event-based social networks (EBSNs) usually participate in events together with friends, classmates, colleagues, or family members, recommending events to a group of users is attracting increasing attention in EBSNs recent years. However, existing studies are lack of attention to the fact that groups in EBSNs may have potential desires for participating in the unexperienced events. In order to deal with the challenges, including mining implicit friendships between users, simulating the consulting process between users and their friends outside the groups, and simulating the negotiating process among members inside the groups, we propose a two-phase group event recommendation (2PGER) model for EBSNs. First, we leverage information, such as online social behaviors, users' event participation records, and topological structures of EBSNs to establish a global trust network among users and establish egotrust networks of all users. Then, we perform random walks on the pre-built egotrust network for each user to acquire the user's predicted preferences on the unexperienced events. Third, we adopt a random walk with restarts (RWR) method to aggregate users' preferences and recommend top N events to groups. In the end, we compare 2PGER with several baseline approaches on real datasets from Meetup. The results show that 2PGER outperforms baselines.

关键词： Event-based social networks group recommendation event recommendation unexperienced events random walk

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JUFE at INEX 2011 Snippet Retrieval Track

JUFE at INEX 2011 Snippet Retrieval Track

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Lecture Notes in Computer Science

作者： Liu, Dexi Wan, Changxuan Liao, Guoqiong Zhong, Minjuan Liu, Xiping School of Information Technology Jiangxi Key Laboratory of Data and Knowledge Engineering Jiangxi University of Finance and Economics Nanchang China

ISBN: (纸本)9783642357336

jiangxi University of Finance and Economics (JUFE) submitted 8 runs to the Snippet Retrieval Track at INEX *** report describes an XML snippet retrieval method based on Average Topic Generalization (ATG) model used by JUFE. The basic idea of the ATG is that different element in an XML document plays different role and hence should has distinguishing importance. The ATG model sets a weight automatically to each element according to its tag or path in the XML document. Then, the BM25EW model based on the ATG is proposed to retrieve and rank the relevant elements in an XML document collection. All windows in the most relevant elements are scored and those windows with higher scores are extracted as snippets. By comparing with the runs under different strategies, the performance are discussed and analyzed in detail. © Springer-Verlag Berlin Heidelberg 2012.

关键词： XML

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OEE-CFC: A dataset for Open Event Extraction from Chinese Financial Commentary

OEE-CFC: A Dataset for Open Event Extraction from Chinese Fi...

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2024 Conference on Empirical Methods in Natural Language Processing, EMNLP 2024

作者： Wan, Qizhi Wan, Changxuan Hu, Rong Liu, Dexi Xu, Wenwu Xu, Kang Zou, Meihua Liu, Tao Yang, Jie Xiong, Zhenwei School of Computer and Artificial Intelligence Jiangxi University of Finance and Economics Jiangxi Key Laboratory of Data and Knowledge Engineering China

ISBN: (纸本)9798891761681

To meet application needs, event extraction has shifted from simple entities to unconventional entities serving as event arguments. However, current corpora with unconventional entities as event arguments are limited in event types and lack rich multi-events and shared arguments. Financial commentary not only describes the basic elements of an event but also states the background, scope, manner, condition, result, and tool used for the event, as well as the tense, intensity, and emotions of actions or state changes. Therefore, it is not suitable to develop event types that include only a few specific roles, as these cannot comprehensively capture the event's semantics. Also, there are affluent complex entities serving as event arguments, multiple events, and shared event arguments. To advance the practicality of event extraction technology, this paper first develops a general open event template from the perspective of understanding the meaning of events, aiming to comprehensively reveal useful information about events. This template includes 21 event argument roles, divided into three categories: core event roles, situational event roles, and adverbial roles. Then, based on the constructed event template, Chinese financial commentaries are collected and manually annotated to create a corpus OEE-CFC supporting open event extraction. This corpus includes 17,469 events, 44,221 arguments, 3,644 complex arguments, and 5,898 shared arguments. Finally, based on the characteristics of OEE-CFC, we design four types of prompts, and two models for event argument extraction are developed, with experiments conducted on the prompts. © 2024 Association for Computational Linguistics.

关键词： Semantics

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A hybrid approach for performance assessment in mobile commerce

A hybrid approach for performance assessment in mobile comme...

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International Conference on Control engineering and Information System, ICCEIS 2014

作者： Liu, W. Jiangxi Key Laboratory of Data and Knowledge Engineering Institute of Information Resources Management Jiangxi University of Finance and Economics Nanchang China

ISBN: (纸本)9781138026858

This paper proposes an effective fusion of Analytic Hierarchy Process (AHP) and Grey Relational Analysis (GRA) approach for the risk evaluation in Mobile Commerce (MC) development. The hybrid method employs the complementary strength of these two appealing techniques, in which, the criteria weight obtained by applying AHP approach, and the GRA approach used to get the overall performance measure of MC risk. At last, experimental results are shown in this paper to verify the effectiveness of the hybrid model. © 2015 Taylor & Francis Group, London.

关键词： Analytic hierarchy process

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