Generative Model Watermarking Based on Human Visual System

Intellectual property protection of deep neural networks is receiving attention from more and more researchers, and the latest research applies model watermarking to generative models for image processing. However, the existing watermarking methods designed for generative models do not take into account the effects of different channels of sample images on watermarking. As a result, the watermarking performance is still limited. To tackle this problem, in this paper, we first analyze the effects of embedding watermark information on different channels. Then, based on the characteristics of human visual system (HVS), we introduce two HVS-based generative model watermarking methods, which are realized in RGB color space and YUV color space respectively. In RGB color space, the watermark is embedded into the R and B channels based on the fact that HVS is more sensitive to G channel. In YUV color space, the watermark is embedded into the DCT domain of U and V channels based on the fact that HVS is more sensitive to brightness changes. Experimental results demonstrate the effectiveness of the proposed work, which improves the fidelity of the model to be protected and has good universality compared with previous methods.Comment: https://scholar.google.com/citations?user=IdiF7M0AAAAJ&hl=e

Knowledge structure and hotspots research of glioma immunotherapy: a bibliometric analysis

BackgroundGlioma is the most common primary brain tumor. Traditional treatments for glioma include surgical resection, radiotherapy, chemotherapy, and bevacizumab therapy, but their efficacies are limited. Immunotherapy provides a new direction for glioma treatment. This study aimed to summarize the knowledge structure and research hotspots of glioma immunotherapy through a bibliometric analysis.MethodPublications pertaining to glioma immunotherapy published during the period from 1st January 1990 to 27th March 2023 were downloaded from the Web of Science Core Collection (WoSCC). Bibliometric analysis and visualization were performed using the CiteSpace, VOSviewer, Online Analysis Platform of Literature Metrology, and R software. The hotspots and prospects of glioma immunotherapy research were illustrated via analyzing the countries, institutions, journals, authors, citations and keywords of eligible publications.ResultsA total of 1,929 publications pertaining to glioma immunotherapy in 502 journals were identified as of 27th March 2023, involving 9,505 authors from 1,988 institutions in 62 countries. Among them were 1,285 articles and 644 reviews. Most of publications were produced by the United States. JOURNAL OF NEURO-ONCOLOGY published the majority of publications pertaining to glioma immunotherapy. Among the authors, Lim M contributed the largest number of publications. Through analyzing keyword bursts and co-cited references, immune-checkpoint inhibitors (ICIs) were identified as the research focus and hotspot.ConclusionUsing a bibliometric analysis, this study provided the knowledge structure and research hotspots in glioma immunotherapy research during the past 33 years, with ICIs staying in the current and future hotspot. Our findings may direct the research of glioma immunotherapy in the future

Which kind of board benefits more from the relationship between entrepreneurial orientation and radical innovation? The asymmetric roles of board characteristics in China

Abstract Radical innovation is necessary for firms to transform existing markets or create new ones, which has critical impact on firm performance. Therefore, there is a need to explore how radical innovation can be successfully achieved. Entrepreneurial orientation reflects a firm’s willingness to be innovative, proactive and risk-taking, which has been recognized as a key factor contributing to firm innovation. However, the specific focus on the relationship between entrepreneurial orientation and radical innovation is very limited. This paper therefore investigates how entrepreneurial orientation affects radical innovation by considering the contingency effects of board characteristics. Using the panel data of listed manufacturing firms in China from 2013 to 2019, this paper found that entrepreneurial orientation has a significant positive impact on radical innovation. Furthermore, different board characteristics play asymmetric moderating roles in that relationship in such a way that CEO duality and board independence play positive moderating roles, while board ownership and board size play negative moderating roles. This paper contributes to the entrepreneurial orientation literature by providing a finer-grained understanding of the role of entrepreneurial orientation on radical innovation. This paper also contributes to the corporate governance literature by revealing the asymmetric contingency effects of different board characteristics

Technology-Independent Directors and Innovative Knowledge Assets: A Contingency Perspective

In the current dynamic and competitive environment, the sustainable competitive advantage of firms has flowed to the development of innovative knowledge assets. Drawing on resource dependence theory, this paper develops a contingency research model to explore how technology-independent directors affect innovative knowledge assets. A sample of Chinese manufacturing firms listed on Shanghai and Shenzhen Stock Exchanges between 2010 and 2019 was used for the regression analysis. By employing the fixed effect model, the results show that technology-independent directors have a significant positive impact on innovative knowledge assets. Furthermore, the impact of technology-independent directors on innovative knowledge assets is strengthened in the firms that are state-owned, larger, and older. These results provide important insights related to innovation research

The Fit between Technology Management and Technological Capability and Its Impact on New Product Development Performance

In recent years, the impact of technology management and technological capability on new product development performance has aroused widespread concern. As a result, research models based on the notion of fit between technology management and technological capability seems to show promise. This paper aims to whether there exists a fit between technology management and technological capability and the effect of this fit on new product development performance. Research results show that the fit between technology management and technological capability has a positive effect on new product development performance. Moreover, the fit between technology management and technological capability in firms with high new product development performance is dominated by technological capability, while that in firms with low new product development performance is dominated by technology management

How do latecomer firms achieve catch-up through technology management: a comparative analysis

Abstract The catch-up of latecomer firms has been a topic of interest because it is closely related to the changes in industry leadership. The reason why some countries are more successful in catch-up is because of their increasing mastery of technology management (TM). Therefore, to ensure successful catch-up, it is imperative for latecomer firms to understand the TM practices and TM modes across national boundaries. This paper aims to reveal the differences in TM practices and TM modes between latecomer firms and forerunner firms. This paper collected data from Chinese firms and Korean firms as latecomers and forerunners, respectively, to examine the differences in TM practices and TM modes. The results show that latecomer firms place more emphasis on grasping the condition of firms’ equipment, understanding technology talents required by business, and completing files on technology information. While forerunner firms stress learning from other competitors, effective training, and constructing detailed technology information management system most. Furthermore, the relationship between TM and product innovation performance is more integrated for forerunner firms compared to latecomer firms. A key contribution of this paper is to reveal the differences in TM practices and TM modes between latecomer firms and forerunner firms, which enriches the catch-up literature from an international comparative perspective. As such, this paper is of great importance in broadening the understanding of how latecomer firms transform into global leaders

The Assessment of Ice-snow Tourism Resources Value and Its Realization Degree

The development of the ice-snow tourism needs a scientific and effective method to assess the value of ice-snow tour-ism resource and its realization degree effectively and reasonability. Based on the analysis of expectation value and realization value of ice-snow tourism resource, this paper designs a three-dimension assessment index system and con-structs the method of assessing the value of ice-snow tourism resource and its realization degree. Finally using ISW scenic area in Heilongjiang Province as an example for empirical analysis, the results show that the method can be ef-fective in assessing the value of ice-snow tourism resource and its realization degree

How to promote the class engagement of graduate students in seminar teaching: An empirical research

Student engagement is of critical importance because it can help students gain more knowledge from the course. This paper investigates how to improve student engagement of graduate students in seminar teaching, and the results show that student self-efficacy, classmate support, and teacher support have significant positive effects on student engagement. These findings highlight the value of self-efficacy, classmate support, and teacher support. Therefore, college should take measures to promote self-efficacy, classmate support, and teacher support