Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170330
Youquan Wang, Lu Zhang, Haicheng Tao, Zhiang Wu, Jie Cao
Uncovering shilling attackers hidden in recommender systems is very crucial to enhance the robustness and trustworthiness of product recommendation. Many shilling attack detection algorithms have been proposed so far, and they exhibit complementary advantage and disadvantage towards various types of attacks. In this paper, we provide a thorough experimental comparison of several well-known detectors, including supervised and unsupervised methods. MovieLens 100K is the most widely-used dataset in the realm of shilling attack detection, and thus it is selected as the benchmark dataset. Meanwhile, seven types of shilling attacks generated by average-filling and random-filling model are tested in our experiments. As a result of our analysis, we show clearly causes and essential characteristics insider attackers that might determine the success or failure of different kinds of detectors.
{"title":"A comparative study of shilling attack detectors for recommender systems","authors":"Youquan Wang, Lu Zhang, Haicheng Tao, Zhiang Wu, Jie Cao","doi":"10.1109/ICSSSM.2015.7170330","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170330","url":null,"abstract":"Uncovering shilling attackers hidden in recommender systems is very crucial to enhance the robustness and trustworthiness of product recommendation. Many shilling attack detection algorithms have been proposed so far, and they exhibit complementary advantage and disadvantage towards various types of attacks. In this paper, we provide a thorough experimental comparison of several well-known detectors, including supervised and unsupervised methods. MovieLens 100K is the most widely-used dataset in the realm of shilling attack detection, and thus it is selected as the benchmark dataset. Meanwhile, seven types of shilling attacks generated by average-filling and random-filling model are tested in our experiments. As a result of our analysis, we show clearly causes and essential characteristics insider attackers that might determine the success or failure of different kinds of detectors.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131212280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170270
Boyan Yao, Hua Yuan, Yu Qian, Liangqiang Li
In this work, we propose a research framework to exploring the useful information about airline service from massive online reviews, especially, the airline service features from the customer perspective. The experimental results indicate that the proposed methods can extract information about customers' opinion about the airline service features. The common concerns as well as special features for different airline company can also be extracted efficiently from the massive online review data.
{"title":"On exploring airline service features from massive online review","authors":"Boyan Yao, Hua Yuan, Yu Qian, Liangqiang Li","doi":"10.1109/ICSSSM.2015.7170270","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170270","url":null,"abstract":"In this work, we propose a research framework to exploring the useful information about airline service from massive online reviews, especially, the airline service features from the customer perspective. The experimental results indicate that the proposed methods can extract information about customers' opinion about the airline service features. The common concerns as well as special features for different airline company can also be extracted efficiently from the massive online review data.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133839232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170226
Dingjun Hong, Yongkai Ma
Consider a supply chain consisting of one manufacturer and two distributors of different countries. This paper studies the service Spill-Over effect of gray market. We build a two-country, three-stage model to research manufacture's operation strategy though a Stackelberg game. We find that the service provided by manufacturer when a gray market competitor exists is higher than that in a sealed market setting.
{"title":"Competition in the gray market with service Spill-Over effect","authors":"Dingjun Hong, Yongkai Ma","doi":"10.1109/ICSSSM.2015.7170226","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170226","url":null,"abstract":"Consider a supply chain consisting of one manufacturer and two distributors of different countries. This paper studies the service Spill-Over effect of gray market. We build a two-country, three-stage model to research manufacture's operation strategy though a Stackelberg game. We find that the service provided by manufacturer when a gray market competitor exists is higher than that in a sealed market setting.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130930522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170136
Fangpei Luo, Mingjian Zhou, Jifan Ren
Based on affective events theory, we proposed a cross-level model to explore the relationship between firm (macro level) positive events and employee (micro level) service performance. First, we hypothesize that firm (macro level) positive events are conducive to employee (micro level) service performance. Then we hypothesize that this positive cross level impact may be combined with middle-level factors, including team service climate and team service efficacy, such that positive relationship between positive events and employee service performance will be stronger when team service climate is high and team service efficacy is high.
{"title":"A cross-level investigation of positive events on employee service performance","authors":"Fangpei Luo, Mingjian Zhou, Jifan Ren","doi":"10.1109/ICSSSM.2015.7170136","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170136","url":null,"abstract":"Based on affective events theory, we proposed a cross-level model to explore the relationship between firm (macro level) positive events and employee (micro level) service performance. First, we hypothesize that firm (macro level) positive events are conducive to employee (micro level) service performance. Then we hypothesize that this positive cross level impact may be combined with middle-level factors, including team service climate and team service efficacy, such that positive relationship between positive events and employee service performance will be stronger when team service climate is high and team service efficacy is high.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134153560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170286
Lufang Zhang
Procurement is an important topic in most enterprises. Comparing with the traditional purchase, reverse auction has been proved more economical, efficient and beneficial for supplier management. An appropriate reverse auction mechanism can be designed for specific situation. In this paper, we design a multi-attribute reverse auction mechanism for a sourcing problem from multiple suppliers under uncertain demand with quality preference, such as purchasing drugs, components for aerospace construction, etc. However, it is very cost and time-consuming to get the quality information of each product and sometimes impossible to get it. Hence the quality information is general a private information. How to get the products with high quality and reasonable price is an important problem faced by managers. We focus on this problem and design a two-stage reverse auction mechanism. From the perspective of buyer, we consider both quality and price, and aims at obtaining supplier's asymmetric private information about the relationship bid price and quality. Then we have proved that the final bid not only maximize the buyer's utility but also make supplier profitable which means this mechanism is efficient. In order to simulate this mechanism and get more conclusions, we take drugs purchase as a numerical analysis example. As a result, we show that the more the bidders are, the more favorable outcome the buyer can obtain. Furthermore, some managerial insights are obtained.
{"title":"Reverse auction mechanism design with quality preference","authors":"Lufang Zhang","doi":"10.1109/ICSSSM.2015.7170286","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170286","url":null,"abstract":"Procurement is an important topic in most enterprises. Comparing with the traditional purchase, reverse auction has been proved more economical, efficient and beneficial for supplier management. An appropriate reverse auction mechanism can be designed for specific situation. In this paper, we design a multi-attribute reverse auction mechanism for a sourcing problem from multiple suppliers under uncertain demand with quality preference, such as purchasing drugs, components for aerospace construction, etc. However, it is very cost and time-consuming to get the quality information of each product and sometimes impossible to get it. Hence the quality information is general a private information. How to get the products with high quality and reasonable price is an important problem faced by managers. We focus on this problem and design a two-stage reverse auction mechanism. From the perspective of buyer, we consider both quality and price, and aims at obtaining supplier's asymmetric private information about the relationship bid price and quality. Then we have proved that the final bid not only maximize the buyer's utility but also make supplier profitable which means this mechanism is efficient. In order to simulate this mechanism and get more conclusions, we take drugs purchase as a numerical analysis example. As a result, we show that the more the bidders are, the more favorable outcome the buyer can obtain. Furthermore, some managerial insights are obtained.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134319599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170156
Yang Lin, Zhu Liye, Yang Li
This paper is to analyze service brand and psychological contract violation's influence on customer loyalty based on research achievement of psychological contract and customer loyalty at home and abroad, using the typical representative of catering industry, KFC, as the study subject. By defining brand psychological contract under marketing situation, it also studies the intervention effect of brand crisis management on customer perception. The empirical result provides reference and theoretical inspiration for the customer relationship management strategy of service enterprises in China under the background of globalization.
{"title":"Research on the influence and intervention of brand psychological contract violation on customer loyalty","authors":"Yang Lin, Zhu Liye, Yang Li","doi":"10.1109/ICSSSM.2015.7170156","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170156","url":null,"abstract":"This paper is to analyze service brand and psychological contract violation's influence on customer loyalty based on research achievement of psychological contract and customer loyalty at home and abroad, using the typical representative of catering industry, KFC, as the study subject. By defining brand psychological contract under marketing situation, it also studies the intervention effect of brand crisis management on customer perception. The empirical result provides reference and theoretical inspiration for the customer relationship management strategy of service enterprises in China under the background of globalization.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133355487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170250
Hongyan Yu, Ann Veeck, M. You
Although there are some relevant researches on customer engagement behaviors, most of them are descriptive, without empirical study. Our purpose is to develop a validate scale for it. Based on Service-dominant Logic and Value Co-creation theory, we defined definition of CEB. We carried out four studies to developed the scale fowling the procedure Hinkin proposed. The Scale of CEB we developed is well reliable and validate. It enriched the theory of customer management and offers a measurement for empirical researches.
{"title":"Customer engagement behavior: Scale development and validation","authors":"Hongyan Yu, Ann Veeck, M. You","doi":"10.1109/ICSSSM.2015.7170250","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170250","url":null,"abstract":"Although there are some relevant researches on customer engagement behaviors, most of them are descriptive, without empirical study. Our purpose is to develop a validate scale for it. Based on Service-dominant Logic and Value Co-creation theory, we defined definition of CEB. We carried out four studies to developed the scale fowling the procedure Hinkin proposed. The Scale of CEB we developed is well reliable and validate. It enriched the theory of customer management and offers a measurement for empirical researches.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":" 31","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132189102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170292
Hongli Wang, Zhuo Chen
We examine the existence and performance impact of internal organization culture fit and external organization culture fit. Using two different operationalizations to measure internal culture fit and external culture fit, our results provide first empirical support for theorized but not previously tested relationships between organizational culture fit, organizational behavior and organizational performance. The analysis gave us the same suggestions: the organization culture fit is positively related to organization behavior; organization behaviors fully mediates the effect of organization culture on organization performance, that means organization culture can't directly function well on performance. These findings have important implications for organization practice and organizational strategy research.
{"title":"Does organizational culture or organizational culture fit really matter?","authors":"Hongli Wang, Zhuo Chen","doi":"10.1109/ICSSSM.2015.7170292","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170292","url":null,"abstract":"We examine the existence and performance impact of internal organization culture fit and external organization culture fit. Using two different operationalizations to measure internal culture fit and external culture fit, our results provide first empirical support for theorized but not previously tested relationships between organizational culture fit, organizational behavior and organizational performance. The analysis gave us the same suggestions: the organization culture fit is positively related to organization behavior; organization behaviors fully mediates the effect of organization culture on organization performance, that means organization culture can't directly function well on performance. These findings have important implications for organization practice and organizational strategy research.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131994459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170195
H. Fu, Yongkai Ma, Xiaowo Tang
Gerchak and Wang [Gerchak, Y., Wang, Y., 2004. Revenue-sharing vs. wholesale-price contracts in assembly systems with random demand. Production and Operations Management 13(1), 23-33] develop a buy-back contract to coordinate a decentralized push assembly system. However, there exists deficiency in their coordination contract, because, as shown in this note, the highest expected profit a supplier in the push system can get is negative in some cases. Thus, we develop a modified buy-back contract to coordinate the push system. We also show that the modified buy-back contract has sufficient flexibility to allocate the expected profit of the system and achieves Pareto improvements.
{"title":"A note on “revenue-sharing vs. wholesale-price contracts in assembly systems with random demand”","authors":"H. Fu, Yongkai Ma, Xiaowo Tang","doi":"10.1109/ICSSSM.2015.7170195","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170195","url":null,"abstract":"Gerchak and Wang [Gerchak, Y., Wang, Y., 2004. Revenue-sharing vs. wholesale-price contracts in assembly systems with random demand. Production and Operations Management 13(1), 23-33] develop a buy-back contract to coordinate a decentralized push assembly system. However, there exists deficiency in their coordination contract, because, as shown in this note, the highest expected profit a supplier in the push system can get is negative in some cases. Thus, we develop a modified buy-back contract to coordinate the push system. We also show that the modified buy-back contract has sufficient flexibility to allocate the expected profit of the system and achieves Pareto improvements.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133642597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-22DOI: 10.1109/ICSSSM.2015.7170305
Zhang Fen, Dai Zhi-min
This paper selects the time series dates in 1995-2013 about total output value of the high technology industry and the sum of the import and export trade in Jiangxi province. By ADF test, Johansen test and Granger causality test, we studied the relationship between the high-tech industry and the import and export trade. Studies have show that in Jiangxi province the high technology industry has a significant role in driving the development of the import and export trade in the long term. However, the import and export trade has little effect on the high technology industry. Finally, this paper puts forward some suggestions.
{"title":"Correlation analysis of Jiangxi high technology industry and import and export trade","authors":"Zhang Fen, Dai Zhi-min","doi":"10.1109/ICSSSM.2015.7170305","DOIUrl":"https://doi.org/10.1109/ICSSSM.2015.7170305","url":null,"abstract":"This paper selects the time series dates in 1995-2013 about total output value of the high technology industry and the sum of the import and export trade in Jiangxi province. By ADF test, Johansen test and Granger causality test, we studied the relationship between the high-tech industry and the import and export trade. Studies have show that in Jiangxi province the high technology industry has a significant role in driving the development of the import and export trade in the long term. However, the import and export trade has little effect on the high technology industry. Finally, this paper puts forward some suggestions.","PeriodicalId":211783,"journal":{"name":"2015 12th International Conference on Service Systems and Service Management (ICSSSM)","volume":"126 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132801170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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