Digital Media Hotspot Mining Algorithm Implementation with Complex Systems in the Mobile Internet Environment

With the development of the Internet, the amount of information present on the network has grown rapidly, leading to increased difficulty in obtaining effective information. Especially for individuals, enterprises, and institutions with a large amount of information, it is an almost impossible task to integrate and analyze Internet information with great difficulty just by human resources. Internet hot events mining and analysis technology can effectively solve the above problems by alleviating information overload, integrating redundant information, and refining core information. In this paper, we address the above problems and research hot event topic sentence generation techniques in the field of hot event mining and design a hybrid event candidate set construction algorithm based on topic core word mapping and event triad selection. The algorithm uses the PAT-Tree technique to extract high-frequency core words in topic hotspots and maps the high-frequency words into sentences to generate a part of event core sentences. The other part of event core sentences is extracted from the topic hotspots by making event triples as candidate elements, and sentences containing event elements are extracted from the topic hotspots. The sets of event core sentences generated by the two methods are mixed and filtered and sorted to obtain the candidate set, which can be used to build a word graph-based main service channel (MSC) model. In this paper, we also propose an improved word graph-based MSC model and use it for the extraction of event topic sentences. Based on the above research, a hot event analysis system is implemented. The system analyzes the existing topic data and uses the event topic sentence generation algorithm studied in this paper to generate the titles of hot spots, that is, hot events. At the same time, the topics are displayed from different dimensions, and data visualization is completed. The visualization includes the trend change of event hotness, trend change of event sentiment polarity, and distribution of event article sources.

A Digital Care Pathway to Access Healthcare Without Time and Place Restrictions

A digital care pathway is a secure digital service channel for patients in a care relationship with a specialized health care hospital in Finland. It is part of the Health Village portal built in co-operation with the Virtual Hospital project by five Finnish university hospitals led by Helsinki University Hospital. Health Village services make healthcare services available to all Finns regardless of place of residence and income level, thus improving the equality of citizens.

Determining the types of internet plus government platform usage behaviour in selected cities of China

Purpose Although internet plus government platforms (IPGPs) are being increasingly used by citizens around the world, questions emerge regarding the public adoption, utilization and use of IPGPs. This study aims to explore the determinants of citizens’ differentiated IPGPs usage behaviors. Design/methodology/approach An analytical framework has been built upon the rational choice theory and the cultural dimension theory. The present study draws on a survey of 866 citizens from Guangzhou, Wuhan and Chengdu. Findings The empirical findings suggest that the perceived functional benefits and personalization features both significantly affect citizens’ informational, service and participatory uses of IPGPs, to varying degrees. Furthermore, long-term orientation plays a moderating role in the relationship between perceived functional benefits and the service use of IPGPs. Originality/value The findings demonstrate that the public’s rational choice of a new digitalized service channel depends on to what extent and to what degree the absolute and relative benefits they consider important compare to other possible channels. Users also consider how the new service channel satisfies their personalized demands of digitalized services. Also, users’ long-term orientation can affect their rational choices by adjusting the perceived functional benefits of the channel when that channel is used for service transactions.

Distributed Urban Platooning towards High Flexibility, Adaptability, and Stability

Vehicle platooning reduces the safety distance between vehicles and the travel time of vehicles so that it leads to an increase in road capacity and to saving fuel consumption. In Europe, many projects for vehicle platooning are being actively developed, but mostly focus on truck platooning on the highway with a simpler topology than that of the urban road. When an existing vehicle platoon is applied to urban roads, many challenges are more complicated to address than highways. They include complex topology, various routes, traffic signals, intersections, frequent lane change, and communication interference depending on a higher vehicle density. To address these challenges, we propose a distributed urban platooning protocol (DUPP) that enables high mobility and maximizes flexibility for driving vehicles to conduct urban platooning in a decentralized manner. DUPP has simple procedures to perform platooning maneuvers and does not require explicit conforming for the completion of platooning maneuvers. Since DUPP mainly operates on a service channel, it does not cause negative side effects on the exchange of basic safety messages on a control channel. Moreover, DUPP does not generate any data propagation delay due to contention-based channel access since it guarantees sequential data transmission opportunities for urban platooning vehicles. Finally, to address a problem of the broadcast storm while vehicles notify detected road events, DUPP performs forwarder selection using an analytic hierarchy process. The performance of the proposed DUPP is compared with that of ENSEMBLE which is the latest European platooning project in terms of the travel time of vehicles, the lifetime of an urban platoon, the success ratio of a designed maneuver, the external cost and the periodicity of the urban platooning-related transmissions, the adaptability of an urban platoon, and the forwarder selection ratio for each vehicle. The results of the performance evaluation demonstrate that the proposed DUPP is well suited to dynamic urban environments by maintaining a vehicle platoon as stable as possible after DUPP flexibly and quickly forms a vehicle platoon without the support of a centralized node.

IMPACT OF DIGITIZATION AND MOBILE BANKING ON THE BANKING SECTOR STRUCTURE IN POLAND

The article presents the results of examining the changes that have occurred in connection with the digitization of banking in Poland and its impact on this segment. The data is taken from the National Bank of Poland, the Polish Financial Supervision Authority, and the Prnews.pl website. A descriptive, statistical and Pearson correlation method were used. The results indicate an increasing share of customers using banking products in a digital way. The number of both website and mobile applications customers is growing. Despite the general increase in the number of people using banks, the number of bank branches as well as the employees working them has decreased. Mobile applications may soon become the main sales and service channel for banking products, the number of customers of banks using them regularly increases. In fact, the rise in digitization for banking and the decrease in the number of branches and employees are strongly correlated. The increasing usage of online and mobile banking is influenced by convenience, availability, and a reduction in the time customers spend on purchasing and servicing their products. Banks are interested in developing these types of services in order to both meet the changing needs of customers and to save on operating costs.

The Time Independent Analysis of Finite Waiting Space Generalised Multichannel Mixed Queuing System with Balking and Reneging Due to Long Queue and Some Urgent Message

The Proposed queuing model comprises of M serial service channels connected to N non-serial service channels. Inside every serial as well as non-serial service channel multiple parallel servers are allocated. Customers are allowed to balk as well as renege at any server inside the queuing model. Along with welsh because of long queue, reneging due to some urgent phone call or text information received, while waiting in the queue is applied in this queuing model. Using (Kelly, F.P., 1975. Networks of queues with customers of different types. Journal of Applied Probability, 12(3), pp.542–554) the difference-differential equations of the proposed model are obtained. Considering the system to be time independent, the time independent equations and corresponding solutions for various cases in the proposed queuing model are obtained. Further, it is submitted that the appearance process is Poisson, the administration time circulation is exponential, waiting space is finite, arrival of the customer depends upon the queue size at every service channel (serial/nonserial) and Service is done in random order rather than First come first serve principle.

Don’t Call Us, We’ll Call You: An Empirical Study of Caller Behavior Under a Callback Option

Although call centers have recently invested in callback technology, the effects of this innovation on call center performance are not clearly understood. In this paper, we take a data-driven approach to quantify the operational impact of offering callbacks under a variety of callback policies. To achieve this goal, we formulate a structural model of the caller decision-making process under a callback option and impute their underlying preferences from data. Our model estimates shed light on caller preferences under a callback option. We find that callers experience three to six times less discomfort per unit of time while waiting for callbacks than while waiting in queue, suggesting that offering callbacks can increase service quality by channeling callers to an alternative service channel where they experience less discomfort while waiting. However, after controlling for expected waiting times, callers generally prefer waiting in a queue over accepting a callback and waiting offline. This suggests that managers of this call center may want to spend efforts in educating their customers on the benefits of the callback option. Using the callers’ imputed preferences, we are able to conduct counterfactual analyses of how various callback policies affect the performance of this call center. We find that in this call center, offering to hold the callers’ spot in line or to call back within a window (guaranteed timeframe) reduces average online waiting time (the average time callers wait on the phone) by up to 71% and improves service quality by decreasing callers’ average incurred waiting cost by up to 46%. Moreover, we find that offering callbacks as a demand postponement strategy during periods of temporary congestion reduces average online waiting time by up to 86%, increases service quality by up to 54%, and increases system throughput by up to 2.1%. This paper was accepted by Vishal Gaur, operations management.