Meng Chen

Publications

• 2.29

  Impact points

  TSCAN: A Content Anatomy Approach to Temporal Topic Summarization

  Chien Chin Chen, Meng Chang Chen

  Knowledge and Data Engineering, IEEE Transactions on. 02/2012;

  A topic is defined as a seminal event or activity along with all directly related events and activities. It is represented by a chronological sequence of documents published by different authors on the Internet. In this study, we define a task called topic anatomy, which summarizes and associates th... [more] A topic is defined as a seminal event or activity along with all directly related events and activities. It is represented by a chronological sequence of documents published by different authors on the Internet. In this study, we define a task called topic anatomy, which summarizes and associates the core parts of a topic temporally so that readers can understand the content easily. The proposed topic anatomy model, called TSCAN, derives the major themes of a topic from the eigenvectors of a temporal block association matrix. Then, the significant events of the themes and their summaries are extracted by examining the constitution of the eigenvectors. Finally, the extracted events are associated through their temporal closeness and context similarity to form an evolution graph of the topic. Experiments based on the official TDT4 corpus demonstrate that the generated temporal summaries present the storylines of topics in a comprehensible form. Moreover, in terms of content coverage, coherence, and consistency, the summaries are superior to those derived by existing summarization methods based on human-composed reference summaries.

• TSCAN: A Content Anatomy Approach to Temporal Topic Summarization.

  Chien Chin Chen, Meng Chang Chen

  IEEE Trans. Knowl. Data Eng. 01/2012; 24:170-183.

• Using chi-square statistics to measure similarities for text categorization.

  Yao-Tsung Chen, Meng Chang Chen

  Expert Syst. Appl. 01/2011; 38:3085-3090.

• Optimal Incentive-Compatible Pricing for Dynamic Bandwidth Trading and Allocation in Efficient Spectrum Management.

  Yeali S. Sun, Ming-Lung Lu, Yu-Chun Pan, Meng Chang Chen

  Proceedings of the Global Communications Conference, GLOBECOM 2011, 5-9 December 2011, Houston, Texas, USA; 01/2011

• Dynamic bandwidth reservation scheme in 802.11 and 802.16 interworking networks.

  Li-Ping Tung, Yeali S. Sun, Meng Chang Chen

  2011 IEEE Wireless Communications and Networking Conference, WCNC 2011, Proceedings, Cancun, Mexico, 28-31 March, 2011; 01/2011

• A Design for Integration of Web 2.0 and an Online Learning Community: A Pilot Study for IWiLL 2.0.

  I-Fan Liu, Meng Chang Chen, Yeali S. Sun, David Wible, Chin-Hwa Kuo

  ICALT 2010, 10th IEEE International Conference on Advanced Learning Technologies, Sousse, Tunesia, 5-7 July 2010; 01/2010

• Extending the TAM model to explore the factors that affect Intention to Use an Online Learning Community.

  I-Fan Liu, Meng Chang Chen, Yeali S. Sun, David Wible, Chin-Hwa Kuo

  Computers & Education. 01/2010; 54:600-610.

• A User-Decided Service Model and Resource Management in a Cooperative WiMAX/HSDPA Network

  Yu-Chun Pan, Y.S. Sun, Chun Hsu, Meng Chang Chen

  Communications, 2009. ICC '09. IEEE International Conference on; 07/2009

  Employing multiple radio access technologies such as WiMAX, HSDPA and Wi-Fi in a mobile network to provide users with more cost-effective communication services has long been a vision of many service network providers. In this paper, we propose a novel user-decided service model for a cooperative wi... [more] Employing multiple radio access technologies such as WiMAX, HSDPA and Wi-Fi in a mobile network to provide users with more cost-effective communication services has long been a vision of many service network providers. In this paper, we propose a novel user-decided service model for a cooperative wireless network in which the radio resources of multiple wireless networks are collectively managed. Under the model, users are provided with multiple service options with different levels of service quality and charges. It is up to users to choose the most suitable service option (and access network) based on their personal preference and the amount of money they are willing to pay. We use a video streaming service in a WiMAX/HSDPA network as an example to illustrate the key concepts and resource management of our approach. The results of simulation show that, under the model, the service network can accommodate more users and provide higher user satisfaction than the traditional network-decided service model. It can also achieve higher resource utilization and revenues. This demonstrates the importance of defining the concept of user-decided service model in a cooperative heterogeneous networking environment.

• TCP-sleek channel access scheduling for multi-hop mesh networks.

  Li-Ping Tung, Yeali S. Sun, Tzu-Lin Huang, Meng Chang Chen

  Proceedings of the International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly, IWCMC 2009, Leipzig, Germany, June 21-24, 2009; 01/2009

• An adaptive threshold framework for event detection using HMM-based life profiles.

  Chien Chin Chen, Meng Chang Chen, Ming-Syan Chen

  ACM Trans. Inf. Syst. 01/2009; 27.

• Sniffing out correct error frame model for the ns-2 simulator.

  Jeng Farn Lee, Meng Chang Chen, Cheng-Lin Tsao

  Simulation Modelling Practice and Theory. 01/2009; 17:1227-1240.

• A User-Decided Service Model and Resource Management in a Cooperative WiMAX/HSDPA Network.

  Yu-Chun Pan, Yeali S. Sun, Chun Hsu, Meng Chang Chen

  Proceedings of IEEE International Conference on Communications, ICC 2009, Dresden, Germany, 14-18 June 2009; 01/2009
• 4.40

  Impact points

  12-Lipoxygenase-knockout mice are resistant to inflammatory effects of a high fat western diet.

  Craig S Nunemaker, Meng Chen, Hong Pei, Sarah D Kimble, Susanna R Keller, Jeffrey D Carter, Zandong Yang, Kellie M Smith, Runpei Wu, Melissa H Bevard, James C Garmey, Jerry Lee Nadler

  American journal of physiology. Endocrinology and metabolism. 10/2008;

  Inflammation is a key pathological process in the progression of atherosclerosis and type 2 diabetes. 12/15-lipoxygenase (12-LO), an enzyme involved in fatty acid metabolism, may contribute to inflammatory-mediated damage triggered by stressors such as obesity and insulin resistance. We hypothesized... [more] Inflammation is a key pathological process in the progression of atherosclerosis and type 2 diabetes. 12/15-lipoxygenase (12-LO), an enzyme involved in fatty acid metabolism, may contribute to inflammatory-mediated damage triggered by stressors such as obesity and insulin resistance. We hypothesized that mice lacking 12-LO are protected against inflammatory-mediated damage associated with a high fat 'western' diet (HFD). To test this hypothesis, age-matched male 12-LO knockout (12-LOKO) and wild type C57Bl/6 (B6) mice were fed either a standard chow or HFD and assessed for several inflammatory markers. HFD B6 mice showed expected reductions in glucose and insulin tolerance compared to chow-fed mice. In contrast, HFD-fed 12-LOKO mice maintained similar glucose and insulin tolerance to chow-fed mice. Circulating proinflammatory adipokines, TNF-alpha and IL-6, were increased in HFD B6 mice but not 12-LOKO mice, whereas the reported protective adipokine, adiponectin, was decreased only in HFD B6 mice. 12-LO activity was significantly elevated by HFD in pancreas and fat from B6 mice. In visceral fat, macrophage numbers and MCP-1 expression were elevated in HFD B6 mice, but not 12-LOKO. Islets from 12-LOKO mice did not show HFD-induced islet hyperplasia nor increases in caspase-3 apoptotic staining observed in HFD B6 mice. Islets from 12-LOKO mice were also protected from reduced glucose-stimulated insulin secretion observed in islets from HFD-fed B6 mice. These data suggest 12-LO activation may play a role in HFD-induced toxicity in visceral fat and islets. Inhibiting 12-LO may provide a new therapeutic approach to prevent inflammatory-mediated metabolic consequences of excess fat intake. Key words: adipocytes, macrophages, obesity, western diet, islets.

• Assessment of an Online Learning Community from Technology Acceptance Model in Education

  I-Fan Liu, Meng Chang Chen, Yeali Sun, D. Wible, Chin Hwa Kuo

  Advanced Learning Technologies, 2008. ICALT '08. Eighth IEEE International Conference on; 08/2008

  Online learning communities are gradually altering the traditional learning style of people because of the pervasiveness of the Internet. The environment of the online learning community has been formed gradually as more and more people join Web sites and learn from each other. A total of 436 senior... [more] Online learning communities are gradually altering the traditional learning style of people because of the pervasiveness of the Internet. The environment of the online learning community has been formed gradually as more and more people join Web sites and learn from each other. A total of 436 senior high school students in Taiwan participated in this research. To test the hypotheses of this research, we use structural equation modeling (SEM) method for validation. All hypotheses we proposed were supported. Finally, we list several implications of this research results as guidelines for developing an online learning community for future study.

• HiMIP-NEMO: Combining Cross-Layer Network Mobility Management and Resource Allocation for Fast QoS-Handovers

  Cheng-Wei Lee, Y.S. Sun, Meng Chang Chen

  Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE; 06/2008

  Network mobility introduces a new communication paradigm that provides sets of mobile hosts (MH) moved collectively as a unit with high-mobility. Efficient network mobility handover design is essential to meet QoS requirements for real-time VoIP-like applications. IETF MIPv6-NEMO design has some pro... [more] Network mobility introduces a new communication paradigm that provides sets of mobile hosts (MH) moved collectively as a unit with high-mobility. Efficient network mobility handover design is essential to meet QoS requirements for real-time VoIP-like applications. IETF MIPv6-NEMO design has some problems and introduces extra overheads on packet header and tunnel processing, and added transmission delays due to additional routing legs. Inflexible execution sequence between tasks in MIPv6-NEMO causes negative effect on handover latency performance. In this work, we combine the designs of routing and resource allocation with network mobility management, and introduce the notion of foreign mobility agent in a hierarchical backhaul packet forwarding architecture, referred to as HiMIP-NEMO, to facilitate QoS-handovers and reduce latency and packet loss during handover. Under the architecture, a QoS-incorporated registration protocol and handover protocol with several new layers 2 and 3 message types are also proposed. Both the analytical and simulation results are presented. The results show the effectiveness of the proposed integrated designs in the support of QoS-handover and significant improvements in latency and packet loss performances.
• 2.29

  Impact points

  Using Incremental PLSI for Threshold-Resilient Online Event Analysis

  Tzu-Chuan Chou, Meng Chang Chen

  Knowledge and Data Engineering, IEEE Transactions on. 04/2008; 20(3):289-299.

  The goal of online event analysis is to detect events and track their associated documents in real time from a continuous stream of documents generated by multiple information sources. Unlike traditional text categorization methods, event analysis approaches consider the temporal relations among doc... [more] The goal of online event analysis is to detect events and track their associated documents in real time from a continuous stream of documents generated by multiple information sources. Unlike traditional text categorization methods, event analysis approaches consider the temporal relations among documents. However, such methods suffer from the threshold-dependency problem, so they only perform well for a narrow range of thresholds. In addition, if the contents of a document stream change, the optimal threshold (that is, the threshold that yields the best performance) often changes as well. In this paper, we propose a threshold-resilient online algorithm, called the incremental probabilistic latent semantic indexing (IPLSI) algorithm, which alleviates the threshold-dependency problem and simultaneously maintains the continuity of the latent semantics to better capture the story line development of events. The IPLSI algorithm is theoretically sound and empirically efficient and effective for event analysis. The results of the performance evaluation performed on the topic detection and tracking (TDT)-4 corpus show that the algorithm reduces the cost of event analysis by as much as 15 percent ~ 20 percent and increases the acceptable threshold range by 200 percent to 300 percent over the baseline.
• 1.90

  Impact points

  An incentive-based fairness mechanism for multi-hop wireless backhaul networks with selfish nodes

  Jeng Farn Lee, Wanjiun Liao, Meng Chang Chen

  Wireless Communications, IEEE Transactions on. 03/2008;

  In this paper, we study the fairness problem in multi-hop wireless backhaul networks in the presence of selfish transit access points (TAPs). We design an incentive-based mechanism which encourages TAPs to forward data for other TAPs, and thus eliminates the location-dependent unfairness problem in ... [more] In this paper, we study the fairness problem in multi-hop wireless backhaul networks in the presence of selfish transit access points (TAPs). We design an incentive-based mechanism which encourages TAPs to forward data for other TAPs, and thus eliminates the location-dependent unfairness problem in the backhaul network. We prove the correctness and truthfulness of the proposed mechanism, and evaluate its performance via ns-2 simulations. The results show that the proposed mechanism achieves fairness even when there are idle TAPs in the network.
• 4.19

  Impact points

  TRPM8 mechanism of autonomic nerve response to cold in respiratory airway.

  Hong Xing, Jennifer X Ling, Meng Chen, Richard D Johnson, Makoto Tominaga, Cong-Yi Wang, Jianguo Gu

  Molecular pain. 02/2008; 4:22.

  Breathing cold air without proper temperature exchange can induce strong respiratory autonomic responses including cough, airway constriction and mucosal secretion, and can exacerbate existing asthma conditions and even directly trigger an asthma attack. Vagal afferent fiber is thought to be involve... [more] Breathing cold air without proper temperature exchange can induce strong respiratory autonomic responses including cough, airway constriction and mucosal secretion, and can exacerbate existing asthma conditions and even directly trigger an asthma attack. Vagal afferent fiber is thought to be involved in the cold-induced respiratory responses through autonomic nerve reflex. However, molecular mechanisms by which vagal afferent fibers are excited by cold remain unknown. Using retrograde labeling, immunostaining, calcium imaging, and electrophysiological recordings, here we show that a subpopulation of airway vagal afferent nerves express TRPM8 receptors and that activation of TRPM8 receptors by cold excites these airway autonomic nerves. Thus activation of TRPM8 receptors may provoke autonomic nerve reflex to increase airway resistance. This putative autonomic response may be associated with cold-induced exacerbation of asthma and other pulmonary disorders, making TRPM8 receptors a possible target for prevention of cold-associated respiratory disorders.

• A Distributed Channel Access Scheduling Scheme with Clean-Air Spatial Reuse for Wireless Mesh Networks.

  Yuan-Chieh Lin, Shun-Wen Hsiao, Li-Ping Tung, Yeali S. Sun, Meng Chang Chen

  NETWORKING 2008, Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet , 7th International IFIP-TC6 Networking Conference, Singapore, May 5-9, 2008, Proceedings; 01/2008

• A network mobility management scheme for fast QoS handover.

  Cheng-Wei Lee, Meng Chang Chen, Yeali S. Sun

  Proceedings of the 4th Annual International Conference on Wireless Internet, WICON 2008, Maui, Hawaii, USA, November 17-19, 2008; 01/2008