739 research outputs found
Participant Network Patterns in Enhancing Online Community Interactivity
Social media is having an increasing impact on businesses. In particular, the explosive growth of online brand communities has attracted organizations and marketers’ attentions. However, despite the increasing importance of online community for marketing, it is noticed that relatively few of them are successful in attracting community members and enhancing interactivity. In this study, we argue that it is necessary to have a comprehensive understanding regarding how the community members participate in the communal context and interact with each other, and thereby the community interactivity can be continued. To this end, we collected a large amount of data from an online discussion forum where we found that the participants were highly interactive across the discussion topics, thus forming robust communities. Currently, the data analysis pertaining to this study is work in progress, but we will be in a position to offer more in-depth analysis of the rich findings that the research has generated by the time of the conference
Copper Metal for Semiconductor Interconnects
Resistance-capacitance (RC) delay produced by the interconnects limits the speed of the integrated circuits from 0.25 mm technology node. Copper (Cu) had been used to replace aluminum (Al) as an interconnecting conductor in order to reduce the resistance. In this chapter, the deposition method of Cu films and the interconnect fabrication with Cu metallization are introduced. The resulting integration and reliability challenges are addressed as well
Wear Characteristics of a Laser Surface Alloyed Al-Mg-Si with Co Alloy Powder
The microstructure and wear resistance of a laser surface alloyed Al-Mg-Si with Co alloy powder were investigated. The experimental results indicate that a porosity-free zone can be generated but some cracks appear after laser surface alloying (LSA). In this investigation, two regions, A (surface region) and B (bottom region), are observed in the pool. Al 9 Co 2 particles with a network structure are present in region A and block-like Al 13 Co 4 particles are distributed in region B. The hardness of the LSA specimens is three to nine times higher than that of the Almatrix. The high hardness of LSA specimens cause them to exhibit excellent sliding wear performance so they have a lower friction coefficient and wear rate. Notably, the critical temperature of the sliding wear resistance of the LSA specimen exceeds that of the Al-matrix by approximately 50 K
Leveraging Large Language Models for Enhanced Product Descriptions in eCommerce
In the dynamic field of eCommerce, the quality and comprehensiveness of
product descriptions are pivotal for enhancing search visibility and customer
engagement. Effective product descriptions can address the 'cold start'
problem, align with market trends, and ultimately lead to increased
click-through rates. Traditional methods for crafting these descriptions often
involve significant human effort and may lack both consistency and scalability.
This paper introduces a novel methodology for automating product description
generation using the LLAMA 2.0 7B language model. We train the model on a
dataset of authentic product descriptions from Walmart, one of the largest
eCommerce platforms. The model is then fine-tuned for domain-specific language
features and eCommerce nuances to enhance its utility in sales and user
engagement. We employ multiple evaluation metrics, including NDCG, customer
click-through rates, and human assessments, to validate the effectiveness of
our approach. Our findings reveal that the system is not only scalable but also
significantly reduces the human workload involved in creating product
descriptions. This study underscores the considerable potential of large
language models like LLAMA 2.0 7B in automating and optimizing various facets
of eCommerce platforms, offering significant business impact, including
improved search functionality and increased sales.Comment: 9 pages, 4 figures, EMNLP2023 workshop, The 2023 Conference on
Empirical Methods in Natural Language Processin
Tailoring excitonic states of van der Waals bilayers through stacking configuration, band alignment and valley-spin
Excitons in monolayer semiconductors have large optical transition dipole for
strong coupling with light field. Interlayer excitons in heterobilayers, with
layer separation of electron and hole components, feature large electric dipole
that enables strong coupling with electric field and exciton-exciton
interaction, at the cost that the optical dipole is substantially quenched (by
several orders of magnitude). In this letter, we demonstrate the ability to
create a new class of excitons in transition metal dichalcogenide (TMD) hetero-
and homo-bilayers that combines the advantages of monolayer- and
interlayer-excitons, i.e. featuring both large optical dipole and large
electric dipole. These excitons consist of an electron that is well confined in
an individual layer, and a hole that is well extended in both layers, realized
here through the carrier-species specific layer-hybridization controlled
through the interplay of rotational, translational, band offset, and
valley-spin degrees of freedom. We observe different species of such
layer-hybridized valley excitons in different heterobilayer and homobilayer
systems, which can be utilized for realizing strongly interacting
excitonic/polaritonic gases, as well as optical quantum coherent controls of
bidirectional interlayer carrier transfer either with upper conversion or down
conversion in energy
Performance Analysis with Coordination Among Base Stations for Next Generation Communication System
[[abstract]]Next generation communication system, such as Long Term Evolution Advanced (LTE-A), has the advantages of high transmission rate, wide bandwidth and better bandwidth utilization in high mobility environments. However, in such a kind of system when users are distributed sparsely in the base station coverage range the spectrum efficiency becomes worse. The emergence of new technologies such as the coordination among based stations makes the utilization of system bandwidth more efficient. The technology of coordination among base stations has other merits such as reducing noise interference, increasing receiving diversity, improving the system receiving gain, etc. In this paper, the system spectrum utilization and its associated efficiency will be investigated when the scheme of coordination among base stations is implemented.[[notice]]補正完畢[[incitationindex]]EI[[booktype]]電子
Text-driven Visual Synthesis with Latent Diffusion Prior
There has been tremendous progress in large-scale text-to-image synthesis
driven by diffusion models enabling versatile downstream applications such as
3D object synthesis from texts, image editing, and customized generation. We
present a generic approach using latent diffusion models as powerful image
priors for various visual synthesis tasks. Existing methods that utilize such
priors fail to use these models' full capabilities. To improve this, our core
ideas are 1) a feature matching loss between features from different layers of
the decoder to provide detailed guidance and 2) a KL divergence loss to
regularize the predicted latent features and stabilize the training. We
demonstrate the efficacy of our approach on three different applications,
text-to-3D, StyleGAN adaptation, and layered image editing. Extensive results
show our method compares favorably against baselines.Comment: Project website: https://latent-diffusion-prior.github.io
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