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Article
Publication date: 14 August 2017

Wei Xu, Lingyu Liu and Wei Shang

Timely detection of emergency events and effective tracking of corresponding public opinions are critical in emergency management. As media are immediate sources of information on…

Abstract

Purpose

Timely detection of emergency events and effective tracking of corresponding public opinions are critical in emergency management. As media are immediate sources of information on emergencies, the purpose of this paper is to propose cross-media analytics to detect and track emergency events and provide decision support for government and emergency management departments.

Design/methodology/approach

In this paper, a novel emergency event detection and opinion mining method is proposed for emergency management using cross-media analytics. In the proposed approach, an event detection module is constructed to discover emergency events based on cross-media analytics, and after the detected event is confirmed as an emergency event, an opinion mining module is used to analyze public sentiments and then generate public sentiment time series for early warning via a semantic expansion technique.

Findings

Empirical results indicate that a specific emergency can be detected and that public opinion can be tracked effectively and efficiently using cross-media analytics. In addition, the proposed system can be used for decision support and real-time response for government and emergency management departments.

Research limitations/implications

This paper takes full advantage of cross-media information and proposes novel emergency event detection and opinion mining methods for emergency management using cross-media analytics. The empirical analysis results illustrate the efficiency of the proposed method.

Practical implications

The proposed method can be applied for detection of emergency events and tracking of public opinions for emergency decision support and governmental real-time response.

Originality/value

This research work contributes to the design of a decision support system for emergency event detection and opinion mining. In the proposed approaches, emergency events are detected by leveraging cross-media analytics, and public sentiments are measured using an auto-expansion of the domain dictionary in the field of emergency management to eliminate the misclassification of the general dictionary and to make the quantization more accurate.

Details

Online Information Review, vol. 41 no. 4
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 4 December 2020

Hualong Yang, Helen S. Du and Wei Shang

Despite the prevalent use of professional status and service feedback in online healthcare markets, the potential interaction relationship between two types of information is…

1075

Abstract

Purpose

Despite the prevalent use of professional status and service feedback in online healthcare markets, the potential interaction relationship between two types of information is still unknown. This study used the signaling theory to examine the substitute relationship between professional status and service feedback in patients' doctor choice, as well as the moderating effect of illness severity.

Design/methodology/approach

To test the paper's hypotheses, we constructed a panel data model using 418 doctors' data collected over a period of six months from an online healthcare market in China. Then, according to the results of the Hausman test, we estimated a fixed-effects model of patients' choice in online healthcare markets.

Findings

The empirical results showed that the effect of a doctor's professional status and service feedback on a patient's doctor choice was substitutable. Moreover, patients' illness severity played a moderating role, in that the influence of professional status on a patient with high-severity illness was higher than that on a patient with low-severity illness, whereas the influence of service feedback on a patient with low-severity illness was higher than that of a patient with high-severity illness. In addition, we found that illness severity negatively moderated the substitute relationship between professional status and service feedback on a patient's choice.

Originality/value

These findings not only contribute to signaling theory and research on online healthcare markets, but also help us understand the importance of professional status and service feedback on a patient's choice when seeking a doctor online.

Details

Internet Research, vol. 31 no. 4
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 14 August 2017

Wei Shang, Hsinchun Chen and Christine Livoti

The purpose of this paper is to propose a framework to detect adverse drug reactions (ADRs) using internet user search data, so that ADR events can be identified early. Empirical…

Abstract

Purpose

The purpose of this paper is to propose a framework to detect adverse drug reactions (ADRs) using internet user search data, so that ADR events can be identified early. Empirical investigation of Avandia, a type II diabetes treatment, is conducted to illustrate how to implement the proposed framework.

Design/methodology/approach

Typical ADR identification measures and time series processing techniques are used in the proposed framework. Google Trends Data are employed to represent user searches. The baseline model is a disproportionality analysis using official drug reaction reporting data from the US Food and Drug Administration’s Adverse Event Reporting System.

Findings

Results show that Google Trends series of Avandia side effects search reveal a significant early warning signal for the side effect emergence of Avandia. The proposed approach of using user search data to detect ADRs is proved to have a longer leading time than traditional drug reaction discovery methods. Three more drugs with known adverse reactions are investigated using the selected approach, and two are successfully identified.

Research limitations/implications

Validation of Google Trends data’s representativeness of user search is yet to be explored. In future research, user search in other search engines and in healthcare web forums can be incorporated to obtain a more comprehensive ADR early warning mechanism.

Practical implications

Using internet data in drug safety management with a proper early warning mechanism may serve as an earlier signal than traditional drug adverse reaction. This has great potential in public health emergency management.

Originality/value

The research work proposes a novel framework of using user search data in ADR identification. User search is a voluntary drug adverse reaction exploration behavior. Furthermore, user search data series are more concise and accurate than text mining in forums. The proposed methods as well as the empirical results will shed some light on incorporating user search data as a new source in pharmacovigilance.

Details

Online Information Review, vol. 41 no. 4
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 1 March 2005

Kusum W. Ketkar, Athar Murtuza and Suhas L. Ketkar

Using Transparency International’s Corruption Perceptions Index (CPI), this paper establishes a statistically significant link between CPI and foreign direct investment (FDI…

Abstract

Using Transparency International’s Corruption Perceptions Index (CPI), this paper establishes a statistically significant link between CPI and foreign direct investment (FDI) flows to 54 developing and developed countries. In addition to each country’s CPI, several location and economic characteristics are also postulated to influence FDI. For a group of 22 developing countries, the paper then simulates the impact of an improvement in the CPI score on FDI. This simulation shows that a one point improvement in CPI would generate on average additional FDI of 0.5% of GDP. For instance, the gain in annual FDI would be $7.5 billion for India and $18 billion for China. The paper further simulates the effects of larger FDI on the generation of taxable income and tax revenues in each country using country-specific rates of return on US investment and the highest marginal corporate tax rate in each country. This simulation shows that a three point improvement in CPI would more than double the corporate tax take on average with the biggest beneficiaries such as India, Turkey, Egypt, South Korea, the Philippines and Thailand.

Details

Journal of Public Budgeting, Accounting & Financial Management, vol. 17 no. 3
Type: Research Article
ISSN: 1096-3367

Article
Publication date: 1 January 2006

Tony Fang

To examine the nature of Chinese business negotiating style in Sino‐Western business negotiations in business‐to‐business markets involving large industrial projects from a social…

20161

Abstract

Purpose

To examine the nature of Chinese business negotiating style in Sino‐Western business negotiations in business‐to‐business markets involving large industrial projects from a social cultural point of view.

Design/methodology/approach

A conceptual approach developed from personal interviews.

Findings

This study reveals that the Chinese negotiator does not possess an absolute negotiating style but rather embraces a mixture of different roles together: “Maoist bureaucrat in learning”, “Confucian gentleman”, and “Sun Tzu‐like strategist”. The Chinese negotiating strategy is essentially a combination of cooperation and competition (termed as the “coop‐comp” negotiation strategy in this study). Trust is the ultimate indicator of Chinese negotiating propensities and role choices.

Research limitations/implications

The focus of this study is on Chinese negotiating style shown in large B2B negotiations with Chinese SOEs.

Originality/value

Differing from most other studies on Chinese negotiating style which tend to depict the Chinese negotiator as either sincere or deceptive, this study points out that there exists an intrinsic paradox in Chinese negotiating style which reflects the Yin Yang thinking. The Chinese negotiator has a cultural capacity to negotiate both sincerely and deceptively and he/she changes coping strategies according to situation and context, all depending on the level of trust between negotiating partners.

Details

Journal of Business & Industrial Marketing, vol. 21 no. 1
Type: Research Article
ISSN: 0885-8624

Keywords

Content available
Article
Publication date: 22 May 2020

Shih-Liang Chao, Chin-Shan Lu, Kuo-Chung Shang and Ching-Chiao Yang

306

Abstract

Details

Maritime Business Review, vol. 5 no. 2
Type: Research Article
ISSN: 2397-3757

Article
Publication date: 14 June 2011

Giuseppina Talamo

This paper aims to analyze existing corporate governance rules which aim to regulate and control the following type of problems: to restore confidence in the financial markets, to

8226

Abstract

Purpose

This paper aims to analyze existing corporate governance rules which aim to regulate and control the following type of problems: to restore confidence in the financial markets, to reformulate the existing corporate governance systems and mechanisms that have been inadequate, and, finally, to rethink the relationship between ethics and economy. It also aims to identify the factors determining the corporate governance systems and mechanisms in a global economy.

Design/methodology/approach

The paper reports the results of a comparative analysis between different corporate governance systems and mechanisms. In addition, in order to explore the role of institutional determinants in attracting foreign direct investment (FDI) flows, this study considers variables such as an index of shareholder protection, openness to FDI and the interaction between the two above mentioned variables.

Findings

This analysis confirms the economic theory that less open countries are characterized by stronger ownership restrictions and a weak corporate governance mechanism. Conversely, open market and investment regimes are particularly powerful instruments to attract investment in general and FDI in particular.

Originality/value

This study provides a survey of the main system and mechanisms of corporate governance all supported by a survey of recent developments regarding the empirical analysis on the role of institutional determinants in attracting FDI flows.

Details

Corporate Governance: The international journal of business in society, vol. 11 no. 3
Type: Research Article
ISSN: 1472-0701

Keywords

Article
Publication date: 29 September 2021

Changyu Wang, Tianyu Yuan and Jiaojiao Feng

The purpose of this study is to answer whether and how supervisor–subordinate instrumental or expressive ties based on enterprise social media (ESM) might enhance employee…

Abstract

Purpose

The purpose of this study is to answer whether and how supervisor–subordinate instrumental or expressive ties based on enterprise social media (ESM) might enhance employee performance.

Design/methodology/approach

Drawing on social exchange theory, this study developed a theoretical model to explore the influencing mechanism of different supervisor–subordinate ties based on ESM on employee job performance. The model was empirically tested through 219 ESM users.

Findings

The results revealed that supervisor–subordinate instrumental ties based on ESM play a positive role in employee job performance, while supervisor–subordinate expressive ties based on ESM are not significantly related to employee job performance. Supervisor–subordinate instrumental ties and expressive ties based on ESM can positively influence employee job performance through the mediating effect of organizational trust. Besides, perceived performance climate can weaken the relation of organizational trust to job performance, and then weaken the indirect relations via the mediating of organizational trust.

Originality/value

Our findings advance the understanding of ESM use through various underlying mechanisms and have the potential of guiding organizations to fine-tune their social media usage strategies.

Details

Journal of Enterprise Information Management, vol. 35 no. 3
Type: Research Article
ISSN: 1741-0398

Keywords

Article
Publication date: 1 October 2024

Yun Zhan, Jia Liao and Xiaoyang Zhao

This study aims to investigate the effect of top management team (TMT) stability on outward foreign direct investment (OFDI) of Chinese firms and the moderating effects of state…

Abstract

Purpose

This study aims to investigate the effect of top management team (TMT) stability on outward foreign direct investment (OFDI) of Chinese firms and the moderating effects of state ownership and managerial ownership on this relationship.

Design/methodology/approach

An empirical analysis based on the ordinary least square regression model is conducted using Chinese A-share listed firms that engaged in OFDI from 2008 to 2021.

Findings

TMT stability has a positive effect on firms’ OFDI. Moreover, state ownership significantly strengthens the positive relationship between TMT stability and OFDI, while managerial ownership weakens this positive relationship.

Practical implications

The findings help firms to effectively retain TMT talents and promote the smooth internationalization of firms, thereby enhancing their long-term development capabilities and competitive advantages.

Originality/value

This study expands the investigation of the factors influencing OFDI at the micro level of the TMT, providing valuable decision-making insights for firms.

Details

Multinational Business Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1525-383X

Keywords

Article
Publication date: 1 December 2021

Hui Zhai, Wei Xiong, Fujin Li, Jie Yang, Dongyan Su and Yongjun Zhang

The prediction of by-product gas is an important guarantee for the full utilization of resources. The purpose of this research is to predict gas consumption to provide a basis for…

Abstract

Purpose

The prediction of by-product gas is an important guarantee for the full utilization of resources. The purpose of this research is to predict gas consumption to provide a basis for gas dispatch and reduce the production cost of enterprises.

Design/methodology/approach

In this paper, a new method using the ensemble empirical mode decomposition (EEMD) and the back propagation neural network is proposed. Unfortunately, this method does not achieve the ideal prediction. Further, using the advantages of long short-term memory (LSTM) neural network for long-term dependence, a prediction method based on EEMD and LSTM is proposed. In this model, the gas consumption series is decomposed into several intrinsic mode functions and a residual term (r(t)) by EEMD. Second, each component is predicted by LSTM. The predicted values of all components are added together to get the final prediction result.

Findings

The results show that the root mean square error is reduced to 0.35%, the average absolute error is reduced to 1.852 and the R-squared is reached to 0.963.

Originality/value

A new gas consumption prediction method is proposed in this paper. The production data collected in the actual production process is non-linear, unstable and contains a lot of noise. But the EEMD method has the unique superiority in the analysis data aspect and may solve these questions well. The prediction of gas consumption is the result of long-term training and needs a lot of prior knowledge. Relying on LSTM can solve the problem of long-term dependence.

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