Authors: Tong, Huagang | Zhu, Jianjun | Yi, Yang
Article Type: Research Article
Abstract: Sharing economy is significant for economic development, stable matching plays an essential role in sharing economy, but the large-scale sharing platform increases the difficulties of stable matching. We proposed a two-sided gaming model based on probabilistic linguistic term sets to address the problem. Firstly, in previous studies, the mutual assessment is used to obtain the preferences of individuals in large-scale matching, but the procedure is time-consuming. We use probabilistic linguistic term sets to present the preferences based on the historical data instead of time-consuming assessment. Then, to generate the satisfaction based on the preference, we regard the similarity between the …expected preferences and actual preferences as the satisfaction. Considering the distribution features of probabilistic linguistic term sets, we design a shape-distance-based method to measure the similarity. After that, the previous studies aimed to maximize the total satisfaction in matching, but the individuals’ requirements are neglected, resulting in a weak matching result. We establish the two-sided gaming matching model from the perspectives of individuals based on the game theory. Meanwhile, we also study the competition from other platforms. Meanwhile, considering the importance of the high total satisfaction, we balance the total satisfaction and the personal requirements in the matching model. We also prove the solution of the matching model is the equilibrium solution. Finally, to verify the study, we use the experiment to illustrate the advantages of our study. Show more
Keywords: Sharing economy, two-sided gaming matching, shape-distance-based similarity, probabilistic linguistic term sets, efficient sharing
DOI: 10.3233/JIFS-211042
Citation: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 3, pp. 1623-1641, 2022
Authors: Zhang, Melvyn W.B. | Yi, Yang | Cheok, Christopher C.S.
Article Type: Research Article
Abstract: BACKGROUND: Problem or pathological gambling has been a worldwide concern in the recent years, especially so with the advances in the technology, facilitating easier access to various means of gambling. Along with the advances in web-based and smartphone technologies, these technologies have been recently applied as adjunctive clinical tools to help gamblers. Taking into careful consideration the existing evidence base for Internet based interventions for pathological gambling, it seemed that the current published literature has demonstrated largely the efficacy of a personalized feedback intervention for pathological gambling; and further studies are still under-going to try and demonstrate the clinical feasibility …of online web-based cognitive behavioral interventions for pathological gamblers. OBJECTIVES: Given this, the aims of the current study are to (a) replicate an online personalized feedback intervention and determine its receptiveness in an Asian cohort of gamblers; and (b) to identify the demographics and characteristics of Asian gamblers who would utilize an online intervention. METHODOLOGY: The workgroup at the National Addiction Management Service, Singapore conceptualized the online personalized feedback intervention for gamblers. The English version was launched on the 31st of March 2014 and the Chinese version was launched on the 30th of September 2014. RESULTS: A cumulative total of 708 participants took part with rhe mean age of the participants being 32.70 (SD = 11.638), with 89.1% males and 10.9% females. The mean problem gambling severity score (PGSI) was 10.80 (SD = 8.13), with the vast majority participating in Casino gambling on board a cruise (36.0%). Of significance, approximately 59.2% of the participants who sought help with our online e-intervention did have a diagnosis of problem gambling. CONCLUSIONS: This is one of the first few studies to demonstrate and replicate the potential use of an Internet based intervention for non-problem and problem gamblers. The current study has demonstrated that individuals are generally receptive towards such an intervention. Show more
Keywords: Gambling, addiction, Internet intervention, Singapore
DOI: 10.3233/THC-151117
Citation: Technology and Health Care, vol. 24, no. 2, pp. 177-183, 2016
Authors: Ren, Tao | Wang, Yi-fan | Liu, Miao-miao | Li, Cai-juan | Liu, Yi-yang
Article Type: Research Article
Abstract: In this paper, for nonlinear multi-agent systems under switching topologies with communication failure, the leader-following consensus problem is studied. Firstly, several switching topologies including a null graph are considered. Secondly, the novel consensus protocols for followers are given considering the communication failure (null graph). Then the convergence analysis is presented and some sufficient conditions are derived for the consensus tracking in a leader-followers multi-agent network. The analysis tools developed in this paper are based on matrix theory and control theory. Finally, the simulations show that by the proposed theorem, the consensus can be achieved and the control gain can influence …the speed of the consensus. Show more
Keywords: Multi-agent systems, communication failure, consensus, switching topologies
DOI: 10.3233/IFS-151844
Citation: Journal of Intelligent & Fuzzy Systems, vol. 30, no. 2, pp. 1199-1206, 2016
Authors: Bastías-Montes, José M. | Vidal-San Martín, Carla | Muñoz-Fariña, Ociel | Petzold-Maldonado, Guillermo | Quevedo-León, Roberto | Wang, Hongxun | Yi, Yang | Céspedes-Acuña, Carlos L.
Article Type: Research Article
Abstract: BACKGROUND: At the present time, the food industry is increasingly interested in the development of formulations with maqui-berry extracts as a rich source of bioactive compounds. Maqui, native to Chile, is a relatively new food raw material that is often called a “superfruit”, The berries of this plant are rich in anthocyanins, phenolic acids, and tannins; compounds that play an important role as sources of bioactive compounds in the health of consumers. Cryoconcentration, a technology that preserves thermolabile bioactive compounds by combining techniques of freezing-centrifugation, makes it possible to obtain concentrates with a greater content of bioactive compounds than traditional …methods of concentration. In this study, maqui fruits were pulped to obtain juice (J) and chaff. The chaff was subjected to aqueous extraction with distilled water in a ratio of 1 : 1 p/v to obtain maqui extract (E). Combined J and E were homogenized, and vacuum filtered to obtain the final extract (A), which was cryoconcentrated at – 30°C and then subjected to 3 continuous cycles of freezing-centrifugation and filtration. MATERIAL AND METHODS: Three continuous centrifugation-filtration cycles were used. The polyphenol content was determined by the Folin-Ciocalteu method with gallic acid as a standard. Anthocyanins were identified by high-performance liquid chromatography (HPLC) and total anthocyanin content was determined by the pH differential method the anthocyaninds present were identified by high performance liquid chromatography (HPLC). RESULTS: After application of the cryoconcentration cycles assisted by centrifugation-filtration, the separation efficiency of solute was found to be maintained over 90%. The content of soluble solids significantly increased in the concentrated fractions and reached 54.2 °Brix at the end of the third cycle. Finally, the ratio of the concentration of total polyphenol and anthocyanin increased 2.8 and 6.7 times, with respect to the initial content in the maqui-berry extract. CONCLUSIONS: The maqui cryoconcentrate is a product with a large content of antioxidants and bioactive compounds commonly considered as functional characteristics. This concentration method also conserved the profile of anthocyanins present in maqui fruit extract. The efficient separation solutes and bioactive compounds achieved will permit scaling these process conditions to the industrial level. OBJECTIVE: To assess the process parameters and polyphenol-anthocyanin content of cryoconcentrates obtained from maqui-berry (Aristotelia chilensis (Mol.) Stuntz). Show more
Keywords: Aristotelia chilensis, maqui-berry, cryoconcentration, total polyphenols, total 39 anthocyanins, color
DOI: 10.3233/JBR-180368
Citation: Journal of Berry Research, vol. 9, no. 3, pp. 377-394, 2019