A Framework for Dynamic Facet Ordering Search in E-Commerce

Author(s):  
J. Rethna Virgil Jeny ◽  
Gunda Roshini

Faceted browsing is wide employed in internet outlets and merchandise comparison sites. In these cases, a hard and fast ordered list of aspects is usually utilized. This approach suffers from 2 main problems. First, one has to invest a major quantity of time to plan an efficient list. Second, with a hard and fast list of aspects it will happen that a aspect becomes useless if all product that match the question area unit associated to it specific aspect. during this work, tend to gift a framework for dynamic aspect ordering in e-commerce. supported measures for specificity and dispersion of aspect values, the totally automatic algorithmic program ranks those properties and aspects on prime that result in a fast drill-down for any attainable target product. In distinction to existing solutions, the framework addresses e-commerce specific aspects, like the likelihood of multiple clicks, the grouping of aspects by their corresponding properties, and therefore the abundance of numeric aspects. In an exceedingly large-scale simulation and user study, approach was, in general, favourably compared to an aspect list created by domain specialists, a greedy approach as baseline, and a progressive entropy-based resolution.

Author(s):  
D.Zh. Akhmed-Zaki ◽  
T.S. Imankulov ◽  
B. Matkerim ◽  
B.S. Daribayev ◽  
K.A. Aidarov ◽  
...  

1977 ◽  
Vol 3 (1/2) ◽  
pp. 126
Author(s):  
W. Brian Arthur ◽  
Geoffrey McNicoll

2021 ◽  
Vol 5 (ISS) ◽  
pp. 1-17
Author(s):  
Finn Welsford-Ackroyd ◽  
Andrew Chalmers ◽  
Rafael Kuffner dos Anjos ◽  
Daniel Medeiros ◽  
Hyejin Kim ◽  
...  

In this paper, we present a system that allows a user with a head-mounted display (HMD) to communicate and collaborate with spectators outside of the headset. We evaluate its impact on task performance, immersion, and collaborative interaction. Our solution targets scenarios like live presentations or multi-user collaborative systems, where it is not convenient to develop a VR multiplayer experience and supply each user (and spectator) with an HMD. The spectator views the virtual world on a large-scale tiled video wall and is given the ability to control the orientation of their own virtual camera. This allows spectators to stay focused on the immersed user's point of view or freely look around the environment. To improve collaboration between users, we implemented a pointing system where a spectator can point at objects on the screen, which maps an indicator directly onto the objects in the virtual world. We conducted a user study to investigate the influence of rotational camera decoupling and pointing gestures in the context of HMD-immersed and non-immersed users utilizing a large-scale display. Our results indicate that camera decoupling and pointing positively impacts collaboration. A decoupled view is preferable in situations where both users need to indicate objects of interest in the scene, such as presentations and joint-task scenarios, as it requires a shared reference space. A coupled view, on the other hand, is preferable in synchronous interactions such as remote-assistant scenarios.


2021 ◽  
Author(s):  
Helena A. Rempala ◽  
Justin A. Barterian

Abstract Background: Neurofeedback (NF) has been described as “probably efficacious” when used in conjunction with other interventions for substance use disorders, including the most recent studies in population of individuals with opioid use disorder. Despite these promising outcomes, the seriousness of the opioid epidemic, and the high rate of relapse even with the most effective medication-assisted maintenance treatments NF continues to be an under-researched treatment modality. This article explores factors that affected the feasibility of adding Alpha/Theta Neurofeedback to treatment as usual for opioid dependence in an outpatient urban treatment center. The study strived to replicate previous research completed in Iran that found benefits of NF for opioid dependence.Methods: Out of approximately two dozen patients eligible for Alpha/Theta NF, about 60% (n=15) agreed to participate; however, only 2 participants completed treatment. The rates of enrollment in response to active treatment were monitored. Results: The 4 factors affecting feasibility were: 1) the time commitment required of participants, 2) ineffectiveness of standard incentives to promote participation, 3) delayed effects of training, and 4) the length and number of treatments required.Conclusion: The findings indicate a large scale study examining the use of NF for the treatment of opioid use disorder in the United States will likely be difficult to accomplish without modification to the traditional randomized control study approach and suggests challenges to the implementation of this treatment in an outpatient setting.


Author(s):  
Jairo da Costa Junior ◽  
Ana Laura Rodrigues dos Santos ◽  
Jan Carel Diehl

As our society faces large-scale wicked problems like global warming, resource depletion, poverty and humanitarian emergencies, problem solvers are required to apply new reasoning models more appropriate to deal with these complex societal problems. Dealing with these problems poses unfamiliar challenges in contexts with poor financial and infrastructural resources. Systems Oriented Design (SOD) has been recognized in the literature as a promising approach, capable to support design engineers to deal with these complex societal problems. This paper explores the application of SOD in the development of Product-Service System (PSS) concepts by student teams in a multidisciplinary master course. The course resulted in twelve concepts that were analysed using a case study approach with the support of protocol analysis. The analysis results in a description of advantages, context- and process-related challenges of using SOD. From an education point-of-view, the results demonstrate that even though SOD provides students with a broad knowledge base and skills to deal with problems in complex societal contexts, there is still the need to introduce the appropriate scope and depth in the design engineering curricula, making the transition from traditional product design, a challenging one.


2018 ◽  
Vol 42 (3) ◽  
pp. 358-385 ◽  
Author(s):  
Natalie Todak ◽  
Michael D. White ◽  
Lisa M. Dario ◽  
Andrea R. Borrego

Objective: To provide guidance to criminologists for conducting experiments in light of two common discouraging factors: the belief that they are overly time-consuming and the belief that they can compromise the ethical principles of human subjects’ research. Method: A case study approach is used, based on a large-scale randomized controlled trial experiment in which we exposed participants to a 5-s TASER shock, to describe how the authors overcame ethical, methodological, and logistical difficulties. Results: We derive four pieces of advice from our experiences carrying out this experimental trial: (1) know your limitations, (2) employ pilot testing, (3) remain flexible and patient, and (4) “hold the line” to maintain the integrity of the research and the safety of human subjects. Conclusions: Criminologists have an obligation to provide the best possible evidence regarding the impact and consequences of criminal justice practices and programs. Experiments, considered by many to be the gold standard of empirical research methodologies, should be used whenever possible in order to fulfill this obligation.


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