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9th Asia-Pacific Symposium on Internetware, Internetware 2017

作者： Zhu, Zixiao Hua, Chenyan Zou, Yanzhen Xie, Bing Zhao, Junfeng Key Laboratory of High Confidence Software Technologies Ministry of Education Beijing China School of Electronics Engineering and Computer Science Peking University Beijing100871 China Information Research Tianjin300450 China

ISBN: (纸本)1595930361

Learning and reusing open source API libraries remain a time consuming process due to the documentation quality and the knowledge gap between API providers and users. Some researchers and API providers have found that the development tasks would narrow the knowledge gap and meet the needs of busy developers. To our knowledge, there is no existing work to generating task oriented API documents. In this paper, we propose an automatic approach to generating task oriented API learning guide. The guide is organized by a hierarchical task list. We integrate the natural language processing techniques with an evidence-based filtering pipeline in our approach. We also employ a graph-based clustering procedure to generate a three-layer task list. Furthermore, we define the normal form of the task phrases as the metadata in our approach. The approach has been implemented as a tool, APITasks. We used it to generate the API documents for four libraries. In an empirical study, we evaluate the accuracy and completeness of our approach with the manually created benchmarks. The results affirm the capability of our approach. © 2017 ACM.

关键词： computer software reusability

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Outlier Detection Based on Wavelet-HMM methods

Outlier Detection Based on Wavelet-HMM methods

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2017 3rd International Conference on Innovation Development of E-commerce and Logistics (ICIDEL 2017)

作者： Fang Liu Ruzhen Dou Chaoying Xia School of Electrical and Automation Engineering Tianjin University Tianjin Qingyuan electric vehicle limited liability company School of Computer Science & Software Engineering TIANJIN Polytechnic University China Automotive Technology & Research Center

According to the limitation of the principle of outlier detection based on wavelet,this paper proposes a new outlier detection method called Wavelet-Hidden Markov Model（W-HMM） *** this algorithm,the signal is decomposed in some scale,and when the wavelet decompositions of the signal are different from the most other wavelet decompositions,the signal will be seen as potential *** to make further accurate judgement,the similarity measure between the wavelet coefficient of this signal and that of normal signal will be done,and the final confirming is made by Viterbi algorithm which is used to *** validity and practicality are proved by experimentation and application in this paper.

关键词： Outliers detection Improved recursive wavelet transform HMM Process data

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Document distance estimation via code graph embedding 17

Document distance estimation via code graph embedding

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9th Asia-Pacific Symposium on Internetware, Internetware 2017

作者： Lin, Zeqi Zhao, Junfeng Zou, Yanzhen Xie, Bing Key Laboratory of High Confidence Software Technologies Ministry of Education Beijing100871 China School of Electronics Engineering and Computer Science Peking University Beijing100871 China Information Research Tianjin300450 China

ISBN: (纸本)1595930361

Accurately representing the distance between two documents (i.e. pieces of textual information extracted from various *** artifacts) has farreaching applications in many automated software engineering approaches, such as concept location, bug location and traceability link recovery. This is a challenging task, since documents containing different words may have similar semantic meanings. In this paper, we propose a novel document distance estimation approach. This approach captures latent semantic associations between documents through analyzing structural information in software source code: first, we embed code elements as points in a shared representation space according to structural dependencies between them;then, we represent documents as weighted point clouds of code elements in the representation space and reduce the distance between two documents to an earth mover's distance transportation problem. We define a document classification task in StackOverflow dataset to evaluate the effectiveness of our approach. The empirical evaluation results show that our approach outperforms several state-of-the-art approaches. © 2017 Copyright held by the owner/author(s).

关键词： Semantics

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Pinning synchronization of coupled neural networks with multiple time-varying delays and reaction-diffusion terms 35

Pinning synchronization of coupled neural networks with mult...

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35th Chinese Control Conference, CCC 2016

作者： Meng, Xu Jin-Liang, Wang Yan-Li, Huang Shu-Xue, Wang Shun-Yan, Ren School of Computer Science and Software Engineering Tianjin Polytechnic University Tianjin300387 China School of Mechanical Engineering Tianjin Polytechnic University Tianjin300387 China

ISBN: (纸本)9789881563910

A coupled neural networks with time-varying delays and reaction-diffusion terms is considered in this paper. By utilizing the pinning control technique and the Lyapunov functional method, we analyze the synchronization of such network model. First, by using some inequality techniques, a synchronization criterion for coupled reaction-diffusion neural networks is established. In addition, in order to obtain appropriate coupling strength c, an adaptive strategy is also designed in this paper. Finally, a numerical example with simulation results is provided to demonstrate the effectiveness of the proposed results. © 2016 TCCT.

关键词： Adaptive Control Coupled Neural Networks Pinning Control Reaction-Diffusion Terms Synchronization

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Remote Supervising of Power Plant

Remote Supervising of Power Plant

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2017 2nd International Conference on computer, Mechatronics and Electronic engineering(CMEE 2017)

作者： Hui-ran WANG Rui-fang MA College of Computer Science Xi'an Polytechnic University School of Software Engineering Xi'an Jiaotong University

With the fast growth of power plant, traditional communication protocol cannot meet the actual requirements. We have to find a way to deal with this situation. In this paper, we put forward an information model and a communication protocol for remote supervising of power plant. Based on our information model, a supervised object is the basic and the least unit of supervising information.A supervised object contains 6 elements. We developed a Supervising Information Library termed as SIL to manage and store supervised objects. The SIL employs an arborescence structure. A branch contains a group of supervised objects. And each leaf stores a single supervised object. We proposed a proprietary protocol, abbreviated as RSPPP at the application layer of communication *** Protocol works in 4 operation modes. The message of RSPPP protocol includes three fields and is described by Abstract Syntax Notation One. TLV(Type, Length, and Value) method is used to encode message for transmission. In our system, an Acorn RISC Machine is used as the central processor. The μC/OS II is employed as operating system. Our system occupies a ROM space of about920 bytes and a RAM space of about 710 bytes when running in AT91 SAM9263.

关键词： Power plant Remote supervise Communication protocol Information model

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The Internet of Things for Petroleum Transportation

The Internet of Things for Petroleum Transportation

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2017 2nd International Conference on Applied Mechanics and Mechatronics engineering(AMME 2017)

作者： Hui-ran WANG Rui-fang MA College of Computer Science Xi'an Polytechnic University School of Software Engineering Xi'an Jiaotong University

The Internet of Things for petroleum transportation is still in the early stages of development. One of the technical key problems is there is still no information model. We put forward the infrastructure for the Internet of Things for Petroleum Transportation. It covers oil depots,gas stations, tank trunks and control center. We studied the information model. The basic unit of the information model is a monitored object. A monitored object has 6 attributes. The information model for the Internet of Things for Petroleum Transportation contains one root, 5 branches, and a lot of leaves. Each branch stores a group of monitored objects. And each leaf stores a single monitored object. We discussed the implement of information model. We have developed a type of the Internet of Things for petroleum transportation and it has worked five years.

关键词： Petroleum Transportation Internet Information Model

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Pinning Synchronization of Coupled Neural Networks With Multiple Time-Varying Delays and Reaction-Diffusion Terms

Pinning Synchronization of Coupled Neural Networks With Mult...

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第35届中国控制会议

作者： XU Meng WANG Jin-Liang HUANG Yan-Li WANG Shu-Xue REN Shun-Yan School of Computer Science & Software Engineering Tianjin Polytechnic University School of Mechanical Engineering Tianjin Polytechnic University

ISBN: (纸本)9781509009107

A coupled neural networks with time-varying delays and reaction-diffusion terms is considered in this *** utilizing the pinning control technique and the Lyapunov functional method,we analyze the synchronization of such network ***,by using some inequality techniques,a synchronization criterion for coupled reaction-diffusion neural networks is *** addition,in order to obtain appropriate coupling strength c,an adaptive strategy is also designed in this ***,a numerical example with simulation results is provided to demonstrate the effectiveness of the proposed results.

关键词： Coupled Neural Networks Reaction-Diffusion Terms Pinning Control Adaptive Control Synchronization

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An Two Dimension detection to node replication attacks in mobile sensor networks 10

An Two Dimension detection to node replication attacks in mo...

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10th IEEE International Conference on Anti-Counterfeiting, Security, and Identification, ASID 2016

作者： Zhou, Chang Ze, Wang School of Computer Science and Software Tianjin Polytechnic University Tianjin China

ISBN: (纸本)9781509010271

The node replication attack is one of the notorious attacks which can be easily launched by the adversary in wireless sensor networks. A lot of literatures have studied to mitigate the node replication attack in static wireless sensor networks. However, the detection to the replica in the mobile sensor networks is more difficult to implement. To avoid centralized detection, some existing schemes try to identify a replicated node by meeting mobile nodes with the same ID but different characteristics. To facilitate discovery of the contradictory characteristics, a hybrid detection including local detection and global detection is proposed - Two Dimension Detecting Scheme. And for different malicious activity, we proposed a detection scheme can deal with different attacks - Advanced Two Dimension Detecting Scheme. The local detection is performed in a local area much smaller than the whole deployed area to improve the meeting probability of the contradictory locations. Furthermore, the distant replicated nodes can also be efficiently detected by the global detection. The complementary two levels of detection achieve quick finding of the replicas with reasonable overhead. © 2016 IEEE.

关键词： Sensor nodes

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On-line memorry defragmentation for NVM-based persistent heaps 6

On-line memorry defragmentation for NVM-based persistent hea...

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6th IEEE Non-Volatile Memory Systems and Applications Symposium, NVMSA 2017

作者： Li, Lin Jiang, Wei Pan, Rui Zhan, Jinyu Shao, Zili Xiong, Xiankui School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu China School of Information and Software Engineering University of Electronic Science and Technology of China Chengdu China Department of Computing Hong Kong Polytechnic University Hong Kong Hong Kong Zhongxing Telecommunication Equipment Corporation Nanjing China State Key Lab of Mathematical Engineering and Advanced Computing Wuxi China

ISBN: (纸本)9781538617687

Due to the durability of NVM, we are facing the great challenge of performing efficient memory defragmentation on persistent heaps. To address the problem, we propose an Online Persistent Memory Defragmentation (OPMD) method to manage persistent heaps. Employing two segment trees to track memory allocation and deallocation operations, our method can amortize the cost of global scan, and determine the most valuable objects needed to be moved in logarithmic time. OPMD adopts software transactional memory to move objects and updates object references in constant time using object metadata. We conduct extensive experiments to test the impact of OPMD on the throughput of the operations of linked list and hash table. © 2017 IEEE.

关键词： Resource management Metadata Nonvolatile memory Memory management Tracking Throughput Random access memory

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Fabrication of Poly(vinylidene fluoride) /Polysulfone Flat Blend Membranes via Thermally Induced Phase Separation Process for Water Treatment

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Journal of Donghua university(English Edition) 2016年第5期33卷 827-830页

作者：张晶齐鲁崔振宇 School of Computer Science & Software Engineering Tianjin Polytechnic University State Key Laboratory of Separation Membranes and Membrane Processes School of Material Science and EngineeringTianjin Polytechnic University

Poly(vinylidene fluoride) /polysulfone(PVDF/PSF) flat blend membrane was prepared via thermally induced phase separation(TIPS) *** membrane formation mechanism and membrane structure were investigated and the effects of PSF/PVDF weight ratio on morphology,crystallinity,porosity,and mechanical properties of the membrane were *** relationship between membrane structure and performances,such as pure water flux and the rejection of carbonic black,was also *** was found that solid-liquid(S-L) phase separation occurred for the PVDF/PSF/diluent *** addition of PSF influences structure and crystallinity of the membrane,which in turn influences mechanical properties and performances of the *** results reveal that it is possible to obtain network structure via S-L phase separation by blending the polymer,which has a partial compatibility with PVDF.

关键词： crystallinity fluoride blend thermally porosity rejection viscosity permeation benzene calorimetry

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