601 research outputs found
Perception of meaning and usage motivations of emoticons among Americans and Chinese users
Do people of different cultures agree on the meaning and use of emoticons? This study addresses this question from an inter-cultural perspective and explores the use of emoticons in the American and Chinese Computer-mediated communication (CMC) communities. The research indicates that both the Americans and Chinese participants use emoticons for entertaining, informational and social interaction motivations but the Americans are more likely to use emoticons for information motivations than the Chinese and the Chinese participants are more likely to use emoticons for social interactions than the Americans participants. The results correspond to the cultural differences between the two countries in low-/ high-context and individualism/collectivism dimensions. Moreover, the results also show that the Americans and the Chinese disagree on the meaning of most emoticons used in the study
Lyapunov-type inequalities for (m+1)th order half-linear differential equations with anti-periodic boundary conditions
Lyapunov-type inequalities for th order half-linear differential equations with anti-periodic boundary conditions
In this work, we will establish several new Lyapunov-type inequalities for th order half-linear differential equations with anti-periodic boundary conditions, the results of this paper are new and generalize and improve some early results in the literature
Dual Relation Alignment for Composed Image Retrieval
Composed image retrieval, a task involving the search for a target image
using a reference image and a complementary text as the query, has witnessed
significant advancements owing to the progress made in cross-modal modeling.
Unlike the general image-text retrieval problem with only one alignment
relation, i.e., image-text, we argue for the existence of two types of
relations in composed image retrieval. The explicit relation pertains to the
reference image & complementary text-target image, which is commonly exploited
by existing methods. Besides this intuitive relation, the observations during
our practice have uncovered another implicit yet crucial relation, i.e.,
reference image & target image-complementary text, since we found that the
complementary text can be inferred by studying the relation between the target
image and the reference image. Regrettably, existing methods largely focus on
leveraging the explicit relation to learn their networks, while overlooking the
implicit relation. In response to this weakness, We propose a new framework for
composed image retrieval, termed dual relation alignment, which integrates both
explicit and implicit relations to fully exploit the correlations among the
triplets. Specifically, we design a vision compositor to fuse reference image
and target image at first, then the resulted representation will serve two
roles: (1) counterpart for semantic alignment with the complementary text and
(2) compensation for the complementary text to boost the explicit relation
modeling, thereby implant the implicit relation into the alignment learning.
Our method is evaluated on two popular datasets, CIRR and FashionIQ, through
extensive experiments. The results confirm the effectiveness of our
dual-relation learning in substantially enhancing composed image retrieval
performance
Efficient Attribute-Based Encryption with Privacy-Preserving Key Generation and Its Application in Industrial Cloud
Due to the rapid development of new technologies such as cloud computing, Internet of Things (IoT), and mobile Internet, the data volumes are exploding. Particularly, in the industrial field, a large amount of data is generated every day. How to manage and use industrial Big Data primely is a thorny challenge for every industrial enterprise manager. As an emerging form of service, cloud computing technology provides a good solution. It receives more and more attention and support due to its flexible configuration, on-demand purchase, and easy maintenance. Using cloud technology, enterprises get rid of the heavy data management work and concentrate on their main business. Although cloud technology has many advantages, there are still many problems in terms of security and privacy. To protect the confidentiality of the data, the mainstream solution is encrypting data before uploading. In order to achieve flexible access control to encrypted data, attribute-based encryption (ABE) is an outstanding candidate. At present, more and more applications are using ABE to ensure data security. However, the privacy protection issues during the key generation phase are not considered in the current ABE systems. That is to say, the key generation center (KGC) knows both of attributes and corresponding keys of each user. This problem is especially serious in the industrial big data scenario, because it will cause great damage to the business secrets of industrial enterprises. In this paper, we design a new ABE scheme that protects user\u27s privacy during key issuing. In our new scheme, we separate the functionality of attribute auditing and key generating to ensure that the KGC cannot know user\u27s attributes and that the attribute auditing center (AAC) cannot obtain the user\u27s secret key. This is ideal for many privacy-sensitive scenarios, such as industrial big data scenario
Influence of Laserâ Microtextured Surface Collar on Marginal Bone Loss and Periâ Implant Soft Tissue Response: A Systematic Review and Metaâ Analysis
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/142176/1/jper0651-sup-0003.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/142176/2/jper0651.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/142176/3/jper0651-sup-0004.pd
Mechanism of collective interstitial ordering in Fe–C alloys
Collective interstitial ordering is at the core of martensite formation in Fe–C-based alloys, laying the foundation for high-strength steels. Even though this ordering has been studied extensively for more than a century, some fundamental mechanisms remain elusive. Here, we show the unexpected effects of two correlated phenomena on the ordering mechanism: anharmonicity and segregation. The local anharmonicity in the strain fields induced by interstitials substantially reduces the critical concentration for interstitial ordering, up to a factor of three. Further, the competition between interstitial ordering and segregation results in an effective decrease of interstitial segregation into extended defects for high interstitial concentrations. The mechanism and corresponding impact on interstitial ordering identified here enrich the theory of phase transitions in materials and constitute a crucial step in the design of ultra-high-performance alloys
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