Virtual Anchor Research Articles

A Model-Free Adaptive Positioning Control Method for Underactuated Unmanned Surface Vessels in Unknown Ocean Currents

Aiming to address the problem of underactuated unmanned surface vehicles (USVs) performing fixed-point operations at sea without dynamic positioning control systems, this paper introduces an original approach to positioning control: the virtual anchor control method. This method is applicable in environments with currents that change slowly and does not require prior knowledge of current information or vessel motion model parameters, thus offering convenient usability. This method comprises four steps. First, a concise linear motion model with unknown disturbances is proposed. Then, a motion planning law is designed by imitating underlying principles of ship anchoring. Next, an adaptive disturbance observer is proposed to estimate uncertainties in the motion model. In the last step, based on the observer, a sliding-mode method is used to design a heading control law, and a thrust control law is also designed by applying the Lyapunov method. Numerical simulation experiments with significant disturbances and tidal current variations are conducted, which demonstrate that the proposed method has a good control effect and is robust.

Research on Innovative Applications of AI Virtual Anchor Live Streaming E-commerce in the Context of Artificial Intelligence

Research on Innovative Applications of AI Virtual Anchor Live Streaming E-commerce in the Context of Artificial Intelligence

Analyze the Impact, Reasons, and Optimization Strategies of the Image of AI Anchors on Consumer Purchase Intention in Live Streaming E-commerce

The importance of live streaming e-commerce in online shopping is increasing with the continuous development of live streaming technology. Artificial intelligence (AI), as a disruptive force, has introduced virtual anchors in the live streaming field, replacing live anchors for product introduction and interaction. The virtual anchor image, with its anthropomorphic appearance, interacts with the audience in real-time and is gradually being applied in various fields such as e-commerce, advertising, and social platforms. This study reviews how the image of AI anchors in live streaming e-commerce affects consumer trust and personalized experience, and further explores its impact on consumer purchase intention. Research has found that virtual anchor images can be divided into human and animal images based on their appearance, and different images have different impacts on consumer purchasing intentions. Humanized virtual anchors establish trust relationships and stimulate purchase intentions through rich expressions and actions; Personalized and customized design enhances the attractiveness and sense of identity of virtual anchors. Finally, regarding the application of enterprises in the field of virtual anchors, this article proposes anthropomorphic design, personalized image, and cultural adaptability strategies to improve the commercial efficiency and brand image of virtual anchors.

Supervising or assisting? The influence of virtual anchor driven by AI–human collaboration on customer engagement in live streaming e-commerce

Supervising or assisting? The influence of virtual anchor driven by AI–human collaboration on customer engagement in live streaming e-commerce

Automatic Indoor Radio Map Construction and Localization via Multipath Fingerprint Extrapolation

For fingerprint-based localization, the time-consuming and labor-intensive construction of offline radio map is the bottleneck which hinders its large-scale implementation. In this paper, we propose a radio map extrapolation and localization algorithm by exploiting the angles and delays of specular multipath components. First, using the concept of virtual anchor nodes (VANs), we calculate the virtual transmitter (VT) of each multipath component according to angle and delay information measured at a known point. By estimating the positions of reflector with these VTs, the angles and delays of the uplink multipath components transmitted at other locations in the indoor environment are extrapolated. Then, a channel fingerprint composed of the extrapolated angles and delays is proposed to represent the channel response in the angle-delay domain, which is spatially unique and discriminative. Thus, the radio map constructed such can significantly reduce the labor and time costs. Lastly, a convolutional neural network (CNN) is applied for indoor localization. The performance of the proposed fingerprint extrapolation and localization method is validated through extensive simulations with a ray-tracing channel model, which exhibits promising localization performance for our proposed scheme with reduced construction costs.

Design of Virtual Anchor Based on 3Dmax

With the rapid development of virtual reality and live streaming technologies, virtual anchors have become increasingly popular in recent years. In this paper, we propose a design method of virtual anchors based on 3DMAX. Through the use of modeling, rigging, and animation techniques, virtual anchors with realistic appearances and human-like movements can be created. We also explore the application of machine learning technologies in improving the interaction between virtual anchors and users. In addition, we provide a case study on the design and implementation of a virtual anchor for a popular live streaming platform. Our results show that the use of 3DMAX in virtual anchor design can greatly enhance user engagement and improve the overall user experience.Virtual anchor design technology based on 3DMAX is a highly complex design work, which requires designers to have a variety of skills and creative capabilities, and needs to fully consider the needs of the audience and the development trend of the industry. Designers should also have certain cultural accumulation and creative ability, and be able to design an attractive and valuable virtual anchor image from the perspective of the audience.This paper analyzes the production and design of the current virtual anchors, in order to provide some reference significance for the production, operation and commercial realization of the virtual anchors in the future.

Influence of Virtual Anchor Characteristics on Consumers’ Consumption Willingness

Influence of Virtual Anchor Characteristics on Consumers’ Consumption Willingness

Integrated beam training and environmental sensing in the mmWave prototype system

Integrated sensing and communication (ISAC) promises to be one of the major technologies in the future mobile communications. However, the lack of co-designed hardware systems and algorithms that combine both functions poses a challenge for further study of ISAC. In this case, firstly, we apply the inertial measurement unit (IMU) to access auxiliary motion information of user equipment (UE). Second, we design a 64-antenna millimeter-wave communication prototype system and estimate localization of UE and environmental features after beam measurements. Finally, the belief propagation simultaneous localization and mapping (BP SLAM) algorithm is utilized to combine IMU estimation with beam measurements to improve localization accuracy of UE and environmental features. The experiment results show that BP SLAM fused with IMU measurements can locate UE within 1 m error and virtual anchor within 2 m error in average, which increases the UE localization and environment sensing accuracy by ten times approximately.

Exploring the Impact of Virtual Anchor Features and Live Content on Viewers' Willingness to Pay for “Superchat” in Live Entertainment Scenarios

With the Internet, the Virtual anchor industry has flourished, gaining a wide fan base and creating eye-catching economic benefits. The new form of reward “Superchat”, which is born with the development of Virtual anchors, has not been studied yet. Therefore, this study aims to investigate the influence of the features of Virtual anchors and live content on viewers' willingness to pay for Superchat in the live entertainment scene. The results showed that: (1) Virtual anchor features are significant, and viewers' willingness to pay for Superchat is strong, and different features will have different effects on willingness. (2) Viewers' perceived recognition and internalization mechanisms mediate the process from virtual anchor features to the willingness to pay for Superchat. Different features correspond to different mechanisms to influence the willingness to pay for Superchat. (3) The type of live content will have a moderating effect on the mechanism of viewers' perception. (4) In summary, in the hedonistic live broadcast, the attractiveness, technical capability and character property of the virtual anchor influence the willingness to pay for Superchat through the mediating effect of the recognition mechanism; in the utilitarian live broadcast, the professionalism of the virtual anchor influence the willingness to pay for Superchat through the mediating effect of the internalization mechanism.

Analytical Study of Lateral Buckling of Pipelines with Initial Imperfection Based on Fixed-Fixed Beam Model

The beam analysis model and the initial imperfection are predominant factors in analyzing the lateral buckling behavior of submarine pipelines under high temperature. However, the existing beam models do not consider the inhibition provided by the virtual anchor point of the pipeline. In this study, a fixed-fixed beam model is introduced to simulate the lateral buckling response of a submarine pipeline. This model considers the suppression tension provided by the virtual anchor point during the pipeline feeding-in process, which better reduces the buckling response phenomenon of the pipeline. Based on the assumption of rigid-plastic pipe-soil interaction, the analytical solution of the buckling development of pipeline under full-contact repetitive cosine imperfection is derived. The effectiveness of the fixed-fixed model is verified by comparing with the analytical solutions in other literature. The influence of the imperfection model, the temperature difference, and the soil resistance on the pipeline buckling is investigated. Finally, the size effect of the pipeline on the effective axial force development is discussed. The results show that the pipeline undergoes stress vibration under tensile force, and the frequency and density of the pipeline stress vibration increase with the increase of the initial defect amplitude. Increasing the diameter–thick ratio will significantly increase the bending amplitude and bending stress of the pipeline. Attention should be paid to the fatigue damage caused by continuous stress mutations during pipeline buckling, which could further lead to the structural destruction of the pipeline.

Research on the communication of virtual anchors in E-commerce platforms from the perspective of Embodied Theory -- taking the live streaming sales of the virtual idol Luo Tianyi as an example

In recent years, with the rise of virtual anchors in live streaming, virtual characters represented by "virtual idols" have gradually entered people's life. This paper mainly analyzes the interactive ways and characteristics of virtual idol Luo Tianyi's practice of selling goods in live streaming. In this communication practice, Luo Tianyi has embodied phenomena on two levels "physical and emotional." In addition, this paper also analyzes the communication mode of virtual anchors in e-commerce platforms from the physical-emotional level. Our research believes that in e-commerce live streaming, virtual anchors can integrate technology with their bodies and combine audiences with shopping scenes, thus improving the audience's perception and experience and contributing to the development of the live streaming selling industry. However, the technical construction and practical application of virtual anchors still have some problems to be solved. With the progress and perfection of technology, virtual anchors will have more excellent application space in the future live-streaming industry. Keywords: Embodied theory, virtual anchor, virtual idol, e-commerce live streaming DOI: 10.7176/NMMC/104-05 Publication date: March 31 st 2023

A brief analysis of the new pattern of China's virtual anchor enabling Webcast -- Taking Jiaran as an example

With the boom of the concept of metauniverse, virtual anchors continue to come out of the circle. Among them, "Jiaran", as a member of A-Soul in the domestic virtual idol group, held the live broadcast of the birthday party and set the revenue record of global virtual anchors. From niche culture at the beginning to sweeping the new media live broadcasting industry, avatars have also been involved in all walks of life and gained wide attention. Taking entertainment virtual anchor Jiaran as an example, this paper analyzes why domestic virtual anchors can rise rapidly in the field of live broadcasting from the aspects of image design, technology application, fan psychology, crossover and so on.

3-D Localization With Coplanar Anchors

The performance of 3-dimensional (3-D) localization is significantly degraded when anchors are placed near the same plane. It can be interpreted as a large noise sensitivity or inversion of a singular matrix. This letter presents an alternative algebraic multilateration algorithm using a virtual anchor, which removes the necessity of an inversion of the singular matrix. Through the mathematical analysis, we reveal that the convergence of this algorithm relies on sensor geometries. The proposed algorithm is validated via simulation and field experiments, which shows that this method could achieve reliable results by having proper sensor geometries.

Research on the Innovative Design of 3D Modeling Technology in the "Meta-universe" Virtual Idol

"meta-universe" virtual idol refers to the virtual image made by people on the computer, can also refer to the virtual anchor or virtual video master, through the virtual avatar deduction or creation of the video author. This paper combined with the new digital technology, explore the use of 3D modeling technology to create virtual idol corresponding ideas and scheme design.

Modulating pipe-soil interface friction to influence HPHT offshore pipeline buckling

High-Pressure High-Temperature offshore pipelines laid on the seafloor are subject to large temperature and pressure variations which manifest as axial pipeline loading. Pipes become unstable in this condition and buckles form to relieve the axial stress. Considerable theoretical and experimental energy has been directed at establishing controlling mechanisms and parameters to predict buckling and design pipeline systems to be resilient and serviceable. The pipe-soil interface friction plays a pivotal role in the rate of build-up of axial loads and in controlling the critical buckling threshold. Pipes adopting smooth polymer coatings have very low friction coefficients but experimental work has shown that simple roughening techniques make greater friction coefficients available to a designer. Presented are a series of numerical analyses carried out using Abaqus to model a pipeline resting on the seabed subject to typical HPHT pipeline conditions. Global stability response is assessed with pipe-soil friction coefficients varying from 0.25 to 0.75 and differential friction regimes are adopted. It is shown that targeted application of pipe sections with greater interface friction may be a useful design tool for manipulating global buckling phenomena and could be a useful additional tool for influencing the spacing in Virtual Anchor Spacing analysis.

Evolution logic and path choice of IP development of media virtual image in the digital twin era

<p>With the integration of various types of technologies and virtual media, the development potential of various types of products will continue to emerge in the future. Based on the rational analysis of the evolution logic and format presentation of virtual anchor, this paper comprehensively extracts the core points of the establishment of upstream, middle and downstream systems in the process of virtual anchor IP development from the dimensions of iconic feature shaping, emotional concrete expression, diversified scene application landing, operation management mechanism establishment, endogenous resource integration, user touch and emotional maintenance, hoping to be beneficial to the development and layout of virtual anchor IP.</p>

Evolution logic and path choice of IP development of media virtual image in the digital twin era

<p>With the integration of various types of technologies and virtual media, the development potential of various types of products will continue to emerge in the future. Based on the rational analysis of the evolution logic and format presentation of virtual anchor, this paper comprehensively extracts the core points of the establishment of upstream, middle and downstream systems in the process of virtual anchor IP development from the dimensions of iconic feature shaping, emotional concrete expression, diversified scene application landing, operation management mechanism establishment, endogenous resource integration, user touch and emotional maintenance, hoping to be beneficial to the development and layout of virtual anchor IP.</p>

Virtuality, simulation and fake

As a real-life application of a “virtual human,” virtual anchors refer to the application of virtual reality technology in communication hosting to create virtual images that simulate human anchors. The pursuit of a virtual human image originates from philosophy, art, and biotechnology. Virtual anchors are also required to undertake the function of communication and hosting. First, by sorting out the development process of virtual anchors, we find that the development of a virtual anchor is based on the needs of technological development and the purpose of capital profit. Second, the simulation technology of a virtual anchor has five dimensions, such as appearance, individuality, and autonomy, and two levels: internal and external. This simulation technology has reached the intelligent simulation stage. Finally, the technology involved in virtual anchors will lead to a trust crisis. That is, the people's body-mind relation and cognitive trust will be broken under the mediation of data. Virtual technology will recreate a false aura, that is, false space-time and fake original works, which is the intelligent falsehood required by the new cultural industry.

On the economic desirability of the West African monetary union: Would one currency fit all?

This paper investigates whether the West African nations will benefit from forming the ECO currency union. Using data from 15 countries over the 1999–2018 period, we assess heterogeneity between economies in terms of equilibrium exchange rates —i.e., the level of exchange rates consistent with the absence of macroeconomic disequilibria. Then, we address the sustainable exchange rate regime issue by evaluating whether the ECO should be pegged, freely floating, or something in between. We identify two homogenous groups of economies and find that neither a single currency peg nor a freely floating exchange rate regime would be preferable for any country or group of economies. Overall, our findings argue in favor of two ECOs, one for each of the two identified zones. Each ECO would serve as a virtual anchor for the considered group and would be determined by a basket of currencies mainly composed of euro and US dollar.

A Brief Analysis of the Development of Chinese Virtual Idol Industry Empowered by 5G+Motion Capture Technology——Taking the Virtual Idol Group A-SOUL as an Example

A-SOUL, a virtual idol girl group, debuted in December 2020, and in just one year, it has turned around from a very poor reputation to become the most influential subculture IP in China today. virtual idols are real people performing in virtual spaces on the internet using virtual images, and the superior motion capture technology, visual design, and 5G network are the key reasons why A-SOUL has been able to stand out from the crowd of virtual anchors. A-SOUL’s superior motion capture technology, visual design, and 5G network are what make it stand out from the crowd of virtual hosts. This paper will use A-SOUL as an example to analyze the current situation, dilemmas, and future development trends of virtual anchor technology in China, and explore the possibilities of virtual idols as an opportunity to drive technological and social change in China.