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To address the issues of low localization and mapping accuracy, as well as map ghosting and drift, in indoor degraded environments using light detection and ranging-simultaneous localization and mapping (LiDAR SLAM), a real-time localization and mapping system integrating filtering and graph optimization theory is proposed. By incorporating filtering algorithms, the system effectively reduces localization errors and environmental noise. In addition, leveraging graph optimization theory, it optimizes the poses and positions throughout the SLAM process, further enhancing map accuracy and consistency. The purpose of this study resolves common problems such as map ghosting and drift, thereby achieving more precise real-time localization and mapping results.

The system consists of three main components: point cloud data preprocessing, tightly coupled inertial odometry based on filtering and backend pose graph optimization. First, point cloud data preprocessing uses the random sample consensus algorithm to segment the ground and extract ground model parameters, which are then used to construct ground constraint factors in backend optimization. Second, the frontend tightly coupled inertial odometry uses iterative error-state Kalman filtering, where the LiDAR odometry serves as observations and the inertial measurement unit preintegration results as predictions. By constructing a joint function, filtering fusion yields a more accurate LiDAR-inertial odometry. Finally, the backend incorporates graph optimization theory, introducing loop closure factors, ground constraint factors and odometry factors from frame-to-frame matching as constraints. This forms a factor graph that optimizes the map’s poses. The loop closure factor uses an improved scan-text-based loop closure detection algorithm for position recognition, reducing the rate of environmental misidentification.

A SLAM system integrating filtering and graph optimization technique has been proposed, demonstrating improvements of 35.3%, 37.6% and 40.8% in localization and mapping accuracy compared to ALOAM, lightweight and ground optimized lidar odometry and mapping and LiDAR inertial odometry via smoothing and mapping, respectively. The system exhibits enhanced robustness in challenging environments.

This study introduces a frontend laser-inertial odometry tightly coupled filtering method and a backend graph optimization method improved by loop closure detection. This approach demonstrates superior robustness in indoor localization and mapping accuracy.

The purpose of this paper is to focus on the emerging phenomenon of medical tourism in the context of Iran from a customer experience management perspective and benchmark of their judgment including positive or negative, of the experience they have achieved of the Iranian health (medical) experience (CE) and suggest scenarios for the improvement of the Iranian customer experience management (CEM).

The research methodologies and research methods that are used in this descriptive-analytical research are based on an inspection of the remarkable literature related to medical tourism and customer experience management. The data gathering instrument is a researcher-made questionnaire based on the variables in the conceptual model extracted from the research literature. The study was conducted from May to August 2019. The population cohort of this study was the foreign patients calling selected Iranian hospitals and the sampling method was a purposive and snowball sample of prospective medical tourists. As the study was conducted throughout Iran, some important hospitals in Iran were selected by stratified sampling Yang et al. (2020b). The sample size and data saturation were 500 participants Lv and Song (2019). The collected data using the questionnaire were analyzed by SPSS software and statistical tests.

According to the results, the customer experience management statistical significance in the task aspect is (p = 0.0523), in the mechanical aspect is (p = 0.0563), in the human aspect is (p = 0.0544). The study showed positive customer experience among the patients who had been treated in the Iranian hospitals.

There is a lack of study that focuses on medical tourism and customer experience management in Iran. Therefore, based on the results of this study, the experience of medical tourists in Iran proved to be positive and satisfying. As little research has been conducted in the area of customer experience management (CEM) in Iranian medical tourism, future researchers can use these valuable results precisely and in more detail to benchmark more accurately the customer experience in all areas of medical and health tourism and other research areas in different aspects of CEM in Iran.

Based on the perspectives of social capital, image motivation and motivation affordances, this paper explores the direct and moderation effects of different kinds of motivations (i.e. relationship-based motivation, community-based motivation and individual-based motivation) on users' continuous knowledge contributions in social question and answer (Q&A) communities.

The authors collect the panel data of 10,193 users from a popular social Q&A community in China. Then, a negative binomial regression model is adopted to analyze the collected data.

The paper demonstrates that social learning, peer recognition and knowledge seeking positively affect users' continuous contribution behaviors. However, the results also show that social exposure has the opposite effect. In addition, self-presentation is found to moderate the influence of social factors on users' continuous use behaviors, while the moderation effect of motivation affordances has no significance.

First, this study develops a comprehensive motivation framework that helps gain deeper insights into the underlying mechanism of knowledge contribution in social Q&A communities. Second, this study conducts panel data analysis to capture the impacts of motivations over time, rather than intentions at a fixed time point. Third, the findings can help operators of social Q&A communities to optimize community norms and incentive mechanisms.

This paper aims to inform design strategies for smart space technology to enhance libraries as environments for coworking and informal social learning. The focus is on understanding user motivations, behaviour, and activities in the library when there is no programmed agenda.

The study analyses gathered data over five months of ethnographic research at The Edge – a “bookless” library space at the State Library of Queensland in Brisbane, Australia, that is explicitly dedicated to coworking, social learning, peer collaboration, and creativity around digital culture and technology.

The results present five personas that embody people's main usage patterns as well as motivations, attitudes, and perceived barriers to social learning. It appears that most users work individually or within pre‐organised groups, but usually do not make new connections with co‐present, unacquainted users. Based on the personas, four hybrid design dimensions are suggested to improve the library as a social interface for shared learning encounters across physical and digital spaces.

The findings in this paper offer actionable knowledge for managers, decision makers, and designers of technology‐enhanced library spaces and similar collaboration and coworking spaces.

The purpose of this paper is to examine whether Japanese private placement issuers manipulate their earnings around the time of issuance and the relationship between earnings management and the post‐issue stock underperformance.

Cross‐sectional modified Jones model is used to measure earnings management proxy – discretionary accruals. Control firms are developed to mitigate the impact of other factors on the measurement of earnings management. Different set of control firms is also developed to calculate abnormal stock returns.

It is found that managers of Japanese private placement issuers tend to engage in income‐increasing earnings management around the time of the issuance. It is further speculated that earnings management serves as a likely source of investor overoptimism at the time of private placements. To support this speculation, evidence is found suggesting that the income‐increasing accounting accruals made at the time of private placements predict the post‐issue long‐term stock underperformance.

The study contributes to the large body of literature on earnings manipulation around the time of securities issuance.

The purpose of this paper is to report the findings of a study to explore the Egyptian social science scholars’ academic writing behaviour in local and international context. Understanding the challenges that scholars in social science and humanities face while publishing in the international outlets would help to suggest strategies to improve academic writing in non-Arabic journals.

This study deployed mixed methods approach. The quantitative data were collected using an online questionnaire. Interviews were conducted with a group of scholars in the five faculties to elucidate the publishing behaviour of the sample.

The interviews and the questionnaire showed that social science scholars in Egypt prefer local publishing outlets. The number of scholars who publish internationally is very low compared to scholars who publish locally. Scholars who tried to publish internationally faced many challenges, such as language barriers, lack of academic writing skills and lack of appropriate training.

This study was conducted in one university in Egypt. While the results can be generalised to Egyptian and Middle East universities, it cannot be generalised to non-Arab communities because of the differences in culture and education system.

This study provides insight on publishing practices in the international context among social science scholars in Egypt using a mixed methods approach. This helped to capture the scholarly publishing practices and the attitude toward international publishing and the main challenges that scholars face who attempt to publish in international outlets.

This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies.

This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context.

A study from Taiwan showed “benevolent leadership” style had a direct impact on employees’ voluntary behavior. And it also had an indirect impact on behavior through the intermediary of enhanced gratitude.

The briefing saves busy executives, strategists and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

No scholarly publications have systematically studied the evolution and growth of China's scientific papers of library and information science published in the English language and covered by ISI during the reform era starting in 1979. It is intended that this paper should fill this gap.

This study surveys ISI library and information science papers authored by researchers of China during 1979‐2009 and quantitatively presents the development of scholarly publications authored by researchers from China. A total of 30 years of data of ISI literature are collected and analyzed, and the paper conducts an international comparison of research productivity among leading Asian countries.

The paper establishes the patterns and trends of papers authored by Chinese authors, particularly the top subject areas and top journals in which Chinese papers are highly represented. Besides, the paper makes an international comparison between China and other major Asian countries such as India, Japan, and Korea in terms of library and information science research outputs represented in ISI literature. China has become the leader in terms of research productivity of library and information science.

This study focuses on English‐language journal articles only. Only journals meeting ISI inclusion criteria are reviewed and analyzed. The possible accidentally inaccurate entries in the original ISI data have not been checked for accuracy and consistency for each journal article record.

The paper provided an example of using the powerful ISI databases of citation indexes, particularly ISI SCCI, in a cautious and critical way. It empirically presents the overall upward development of China's scholarship of library and information science. Either the Greater China area as a whole or Mainland China alone has become the leader in the scholarly publications in library and information ahead of India, Korea and Japan.

This paper aims to theoretically investigate a knowledge management model from the combined perspective of knowledge acquisition and knowledge application and its effect on organizational performance.

This study reviews prior research on knowledge acquisition and knowledge application, puts forward the concepts of “the extensiveness of knowledge acquisition” and “the concentration of knowledge application” and more importantly proposes an integrated model by combining these two dimensions. Four case examples of enterprises are subsequently described and analyzed to illustrate the sources of knowledge acquisition, the objects of knowledge application and their influences on organizational performance.

Four knowledge management modes and their impacts are confirmed in this study. Specifically, the organization of the turbojet engine mode (high extensiveness of knowledge acquisition and high concentration of knowledge application) can achieve good performance. The pipeline mode (high extensiveness of knowledge acquisition and low concentration of knowledge application) is the second, which has limited influence on good organizational performance. Organizations with the flashlight mode (low extensiveness of knowledge acquisition and high concentration of knowledge application) can achieve limited performance under the appropriate environment. The candle mode (low extensiveness of knowledge acquisition and low concentration of knowledge application) is the worst, performance of which is poor due to the break of the knowledge chain.

This paper holds that organizations should actively use the turbojet engine mode, adopt the pipeline mode and the flashlight mode cautiously, and avoid falling into the candle mode.

To the best of the authors’ knowledge, this study is among the first to propose the concepts of “the extensiveness of knowledge acquisition” and “the concentration of knowledge application,” and provides a combined model for analyzing differences in organizational performance from the perspective of knowledge.

This study aims to verify the circumstances under which managing the allowance for uncollectible accounts is used as a tool of earnings management.

The authors investigate whether bad debt expense, which is an income statement counterpart of allowance for uncollectible accounts, is adjusted downward when pre-managed earnings is slightly above zero earnings, prior year’s earnings or analysts’ forecasts.

The findings of this study show that firms manage bad debt expense downward to avoid losses, sustain the prior year’s earnings and meet or beat analysts’ forecasts. The authors also find that the understatement of bad debt expense to meet earnings benchmarks is pronounced for firms with high tax costs.

Standard setters and auditors can gain a better understanding in detail of the practices and methods of managing earnings via the allowance for uncollectible accounts.

This study is the first to examine earnings management via the allowance for uncollectible accounts in non-financial Korean firms. In addition, the findings provide the evidence that firms prefer to use the allowance for uncollectible accounts as a strategic tool to meet benchmarks, especially when their tax costs are high.