Services -- SERVICES 2018 : 14th World Congress, held as part of the Services Conference Federation, SCF 2018, Seattle, WA, USA, June 25-30, 2018, Proceedings

This book constitutes the refereed proceedings of the 14th World Congress on Services, SERVICES 2018, held as part of the Services Conference Federation, SCF 2018, in Seattle, USA, in June 2018. The 10 full papers and 3 short papers presented were carefully reviewed and selected from 22 submissions. The papers cover topics in the field of software foundations and applications with a focus on novel approaches for engineering requirements, design and architectures, testing, maintenance and evolution, model-driven development, software processes, metrics, quality assurance and new software economics models, search-based software engineering, benefiting day-to-day services sectors and derived through experiences, with appreciation to scale, pragmatism, transparency, compliance and/or dependability. Preface 6 Organization 7 Contents 9 Research Track: Cloud Services 11 A Conceptual Framework of Security Requirements in Multi-cloud Environment 12 1 Introduction 12 2 Multi-cloud Security Challenges 13 3 Multi-cloud Security Requirements 15 4 Related Work 16 5 A Conceptual Security Requirements Framework for Multi-cloud Environment 17 6 Framework Overview 17 7 Illustration Example 20 7.1 Business Security Process: Security Extension for BPMN 21 8 Conclusion 24 References 25 ICSD: Integrated Cloud Services Dataset 27 Abstract 27 1 Introduction 27 2 Cloud Service Composition 28 3 Generating the Integrated Cloud Services Dataset (ICSD) 29 3.1 Pruning QoS Performance Values 29 3.2 Generate the Integrated ICSD 30 3.3 Generating Cost Parameter 32 3.4 ICSD Format Details 33 4 Evaluating the Proposed ICSD Dataset Accuracy 34 4.1 Using an Existing Composition Model 34 4.2 The Correlation Relationship Between QoS Attributes 36 5 Conclusion 37 References 38 Application Track: Web Services 40 RSA Cryptosystem Based on Early Word Based Montgomery Modular Multiplication 41 Abstract 41 1 Introduction 41 2 RSA Exponentiation 42 3 Montgomery Modular Multiplication 43 4 Early Word Based Montgomery Modular Multiplication 45 4.1 Early Word Based Approach 45 4.2 Proposed Early Word Based Radix 4 Common Multiplicand Montgomery Modular Multiplication 46 5 Comparison and Implementation Results 49 6 Conclusion 54 References 54 Pre-Patch: Find Hidden Threats in Open Software Based on Machine Learning Method 56 1 Introduction 56 2 Problem 58 2.1 Pre-Patch Problem 58 2.2 Data Collection 59 2.3 Pre-Patch Analysis 59 3 Text Mining 60 3.1 Word Segmentation 61 3.2 Word Set Expansion 61 3.3 Feature Extraction 62 4 Learning-Based Detection 63 4.1 Overview 63 4.2 Feature Construction 64 4.3 Classification with BP-ANN 66 5 Evaluation 66 6 Discussion and Future Work 70 7 Related Work 70 8 Conclusions 71 References 72 CVTron Web: A Versatile Framework for Online Computer Vision Services 74 1 Introduction 74 2 Related Work 75 3 Architecture 76 3.1 Model Library 76 3.2 Backend 77 3.3 Frontend and User Interface 79 4 Conclusion and Further Work 83 References 84 Using Join Operation in Relational Database to Composite Web Services 85 Abstract 85 1 Introduction 85 2 Web Service Definition and Storage 86 2.1 Web Service Definition 86 2.2 Web Service and Ontology Storage 87 3 Web Service Composition and Case Study 88 3.1 Web Service Composition 88 3.2 Case Study 90 4 Experiment 93 4.1 Experiment Environment 93 4.2 Experiment Comparison and Analysis 93 5 Conclusion 97 Acknowledgment 97 References 97 Application Track: Cloud and Related Services 99 Cloud Migration Tools: Overview and Comparison 100 Abstract 100 1 Introduction 100 2 Why Is Cloud Migration Important? 102 3 Benefits and Risks of Cloud Migration 102 4 Cloud Migration Considerations 103 4.1 The Application or Data to Be Sent to the Cloud 103 4.2 Cost of Cloud Services 104 4.3 Type of Cloud Service 104 4.4 Governance and Security 105 4.5 Cloud to Cloud Migration Challenges 105 4.6 Draw up a Cloud Migration Plan 105 5 Cloud Migration Stages and Tools 105 5.1 Cloud Migration Stages 105 5.2 Cloud Migration Tools 106 6 Comparison of Cloud Migration Tools and Services 110 7 Conclusion 111 References 112 Index Recommendation Algorithm Based on Louvain Algorithm with the Popularity of Keywords 114 Abstract 114 1 Related Work 115 2 Problem Description and Analysis 116 3 Index Recommendation Algorithm Based on the Louvain Algorithm for Adding Keyword Popularity 116 3.1 Keyword Extraction Strategy 116 3.2 Keyword Extraction Strategy 118 3.3 Keyword Extraction Louvain-Based Community Classification Algorithm 118 3.4 Data Visualization 120 4 Results Display and Analysis 120 5 Conclusion 123 Acknowledgements 123 References 123 Cloud Resource Allocation Based on Historical Records: An Analysis of Different Resource Estimation Functions 125 1 Introduction 125 2 Related Work 126 3 Resource Estimation Modeling 128 3.1 Modeling Customers' Requests 128 3.2 Modification to the Resource Estimation Model 129 3.3 Introduction and Analysis of the Models 130 4 Simulation and Analysis of Results 132 4.1 The User's Behavior 133 4.2 Results 133 5 Conclusions 135 References 136 An Evolutionary Multitasking Algorithm for Cloud Computing Service Composition 137 1 Introduction 137 2 Related Work 140 2.1 Evolutionary Multitasking Algorithm and Its Application 140 2.2 Algorithms for CCSC Problem 140 3 Problem Definition 141 3.1 Quality Criteria of an Atomic Service 141 3.2 Structures of a Composite Service 141 3.3 Service Selection 142 3.4 Execution of a Composite Service 142 3.5 Problem Formulation 143 4 Evolutionary Multitasking Algorithm for CCSC Problem 144 5 Experiments 147 5.1 Experiment Setup 147 5.2 Compared Algorithms and Control Parameters 147 5.3 Results and Comparison 147 6 Conclusion 149 References 149 Software Asset Management Approach in NFV Context 152 Abstract 152 1 Introduction 152 2 State of the Art 153 2.1 Context and Literature 153 2.2 This Context Justifies Reinforcement of SAM 154 3 Adapting SAM to NFV 154 3.1 Convergence Between IT and Network 154 3.2 Accompany This Convergence in License Management 156 4 SAM Implementation Strategies 157 4.1 VNF Identification 157 4.2 Tracking and Controlling VNF Software 158 5 Conclusion 160 References 161 Short Paper Track: Application Services 162 A Trust-Based Prediction Approach for Recommendation System 163 Abstract 163 1 Introduction 163 2 Related Work and Background 164 2.1 Related Work 164 2.2 Background Knowledge 164 3 A Trust-Based Delivery Recommendation Method 165 3.1 Calculate the Pearson Correlation Between Users 165 3.2 Trust Calculation and Propagation 166 3.3 Example Analysis 166 4 Experimental Evaluation and Discussion 167 4.1 Evaluation Metrics 167 4.2 Experimental Results and Analysis 168 5 Conclusions 170 Acknowledgement 170 References 170 A Concurrent Recommender System Based on Social Network 171 1 Introduction 171 2 Preliminaries 172 3 Item Recommendation Method 172 3.1 Algorithm Description and Design 173 4 Experimental Results 175 5 Conclusion 177 References 177 MP-RA: Towards a Model-Driven and Pattern-Based Risk Analysis of e-Service Fraud 178 1 Introduction 178 2 Related Work 179 3 Methodology 180 4 MP-RA: The Framework 180 4.1 Conceptual Model Designer 180 4.2 Risk Analysis 182 5 Discussion 184 6 Conclusion and Future Research Directions 185 References 185 Author Index 187 Front Matter ....Pages I-X Front Matter ....Pages 1-1 A Conceptual Framework of Security Requirements in Multi-cloud Environment (Hamad Witti, Chirine Ghedira Guegan, Elhadj Benkhelifa)....Pages 3-17 ICSD: Integrated Cloud Services Dataset (Samar SH. Haytamy, Hisham A. Kholidy, Fatma A. Omara)....Pages 18-30 Front Matter ....Pages 31-31 RSA Cryptosystem Based on Early Word Based Montgomery Modular Multiplication (Rupali Verma, Maitreyee Dutta, Renu Vig)....Pages 33-47 Pre-Patch: Find Hidden Threats in Open Software Based on Machine Learning Method (Mutian Yang, Jingzheng Wu, Shouling Ji, Tianyue Luo, Yanjun Wu)....Pages 48-65 CVTron Web: A Versatile Framework for Online Computer Vision Services (Yingying Chen, Xiaozhe Yao)....Pages 66-76 Using Join Operation in Relational Database to Composite Web Services (Xuan Yang, Jianxiao Liu)....Pages 77-90 Front Matter ....Pages 91-91 Cloud Migration Tools: Overview and Comparison (Awatef Balobaid, Debatosh Debnath)....Pages 93-106 Index Recommendation Algorithm Based on Louvain Algorithm with the Popularity of Keywords (Siyao Li, Rongheng Lin, Hua Zou)....Pages 107-117 Cloud Resource Allocation Based on Historical Records: An Analysis of Different Resource Estimation Functions (Qi Hu, Mohammad Aazam, Marc St-Hilaire)....Pages 118-129 An Evolutionary Multitasking Algorithm for Cloud Computing Service Composition (Liang Bao, Yutao Qi, Mengqing Shen, Xiaoxuan Bu, Jusheng Yu, Qian Li et al.)....Pages 130-144 Software Asset Management Approach in NFV Context (Anne-Lucie Vion, Noëlle Baillon, Fabienne Boyer, Noël De Palma)....Pages 145-154 Front Matter ....Pages 155-155 A Trust-Based Prediction Approach for Recommendation System (Peng Wang, Haiping Huang, Jie Zhu, Lingtao Qi)....Pages 157-164 A Concurrent Recommender System Based on Social Network (Rachael Chertok, Nicholas Cockcroft, Sourav Dutta)....Pages 165-171 MP-RA: Towards a Model-Driven and Pattern-Based Risk Analysis of e-Service Fraud (Ahmed Seid Yesuf)....Pages 172-180 Back Matter ....Pages 181-181