330 research outputs found
Research on Typical Cases of Integration of Jiangsu Logistics Industry and Manufacturing Industry
This project aims to comprehensively investigate the current status of the modern logistics industry and advanced manufacturing development in Jiangsu, China. Its primary goal is to gain a precise understanding of the challenges and shortcomings in the integration of the logistics and manufacturing sectors in Jiangsu, as well as to delve deeply into the factors constraining this integration. Additionally, through empirical research on representative cases and study areas, it intends to propose policy recommendations for the development of the integration between the logistics and manufacturing industries. These recommendations aim to promote high-quality development of manufacturing in the context of the new development pattern, strengthen the foundational capabilities for logistics-manufacturing integration, and foster innovative models and formats for the integration of logistics and manufacturing
Attribute-Aware Deep Hashing with Self-Consistency for Large-Scale Fine-Grained Image Retrieval
Our work focuses on tackling large-scale fine-grained image retrieval as
ranking the images depicting the concept of interests (i.e., the same
sub-category labels) highest based on the fine-grained details in the query. It
is desirable to alleviate the challenges of both fine-grained nature of small
inter-class variations with large intra-class variations and explosive growth
of fine-grained data for such a practical task. In this paper, we propose
attribute-aware hashing networks with self-consistency for generating
attribute-aware hash codes to not only make the retrieval process efficient,
but also establish explicit correspondences between hash codes and visual
attributes. Specifically, based on the captured visual representations by
attention, we develop an encoder-decoder structure network of a reconstruction
task to unsupervisedly distill high-level attribute-specific vectors from the
appearance-specific visual representations without attribute annotations. Our
models are also equipped with a feature decorrelation constraint upon these
attribute vectors to strengthen their representative abilities. Then, driven by
preserving original entities' similarity, the required hash codes can be
generated from these attribute-specific vectors and thus become
attribute-aware. Furthermore, to combat simplicity bias in deep hashing, we
consider the model design from the perspective of the self-consistency
principle and propose to further enhance models' self-consistency by equipping
an additional image reconstruction path. Comprehensive quantitative experiments
under diverse empirical settings on six fine-grained retrieval datasets and two
generic retrieval datasets show the superiority of our models over competing
methods.Comment: Accepted by IEEE TPAM
Non-simple systoles on random hyperbolic surfaces for large genus
In this paper, we investigate the asymptotic behavior of the non-simple
systole, which is the length of a shortest non-simple closed geodesic, on a
random closed hyperbolic surface on the moduli space of Riemann
surfaces of genus endowed with the Weil-Petersson measure. We show that as
the genus goes to infinity, the non-simple systole of a generic hyperbolic
surface in behaves exactly like .Comment: 47 pages, 11 figures. Comments welcom
Experimental investigation on the evacuation performance of pedestrians in a three-lane urban tunnel with natural ventilation in a fire scenario
An Adaptive Resilience Testing Framework for Microservice Systems
Resilience testing, which measures the ability to minimize service
degradation caused by unexpected failures, is crucial for microservice systems.
The current practice for resilience testing relies on manually defining rules
for different microservice systems. Due to the diverse business logic of
microservices, there are no one-size-fits-all microservice resilience testing
rules. As the quantity and dynamic of microservices and failures largely
increase, manual configuration exhibits its scalability and adaptivity issues.
To overcome the two issues, we empirically compare the impacts of common
failures in the resilient and unresilient deployments of a benchmark
microservice system. Our study demonstrates that the resilient deployment can
block the propagation of degradation from system performance metrics (e.g.,
memory usage) to business metrics (e.g., response latency). In this paper, we
propose AVERT, the first AdaptiVE Resilience Testing framework for microservice
systems. AVERT first injects failures into microservices and collects available
monitoring metrics. Then AVERT ranks all the monitoring metrics according to
their contributions to the overall service degradation caused by the injected
failures. Lastly, AVERT produces a resilience index by how much the degradation
in system performance metrics propagates to the degradation in business
metrics. The higher the degradation propagation, the lower the resilience of
the microservice system. We evaluate AVERT on two open-source benchmark
microservice systems. The experimental results show that AVERT can accurately
and efficiently test the resilience of microservice systems
De novo assembly and transcriptome characterization: novel insights into the natural resistance mechanisms of Microtus fortis against Schistosoma japonicum
BACKGROUND: Microtus fortis is a non-permissive host of Schistosoma japonicum. It has natural resistance against schistosomes, although the precise resistance mechanisms remain unclear. The paucity of genetic information for M. fortis limits the use of available immunological methods. Thus, studies based on high-throughput sequencing technologies are required to obtain information about resistance mechanisms against S. japonicum. RESULTS: Using Illumina single-end technology, a de novo assembly of the M. fortis transcriptome produced 67,751 unigenes with an average length of 868 nucleotides. Comparisons were made between M. fortis before and after infection with S. japonicum using RNA-seq quantification analysis. The highest number of differentially expressed genes (DEGs) occurred two weeks after infection, and the highest number of down-regulated DEGs occurred three weeks after infection. Simultaneously, the strongest pathological changes in the liver were observed at week two. Gene ontology terms and pathways related to the DEGs revealed that up-regulated transcripts were involved in metabolism, immunity and inflammatory responses. Quantitative real-time PCR analysis showed that patterns of gene expression were consistent with RNA-seq results. CONCLUSIONS: After infection with S. japonicum, a defensive reaction in M. fortis commenced rapidly, increasing dramatically in the second week, and gradually decreasing three weeks after infection. The obtained M. fortis transcriptome and DEGs profile data demonstrated that natural and adaptive immune responses, play an important role in M. fortis immunity to S. japonicum. These findings provide a better understanding of the natural resistance mechanisms of M. fortis against schistosomes. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi: 10.1186/1471-2164-15-417) contains supplementary material, which is available to authorized users
DiffSeer: Difference-based Dynamic Weighted Graph Visualization
Existing dynamic weighted graph visualization approaches rely on users'
mental comparison to perceive temporal evolution of dynamic weighted graphs,
hindering users from effectively analyzing changes across multiple timeslices.
We propose DiffSeer, a novel approach for dynamic weighted graph visualization
by explicitly visualizing the differences of graph structures (e.g., edge
weight differences) between adjacent timeslices. Specifically, we present a
novel nested matrix design that overviews the graph structure differences over
a time period as well as shows graph structure details in the timeslices of
user interest. By collectively considering the overall temporal evolution and
structure details in each timeslice, an optimization-based node reordering
strategy is developed to group nodes with similar evolution patterns and
highlight interesting graph structure details in each timeslice. We conducted
two case studies on real-world graph datasets and in-depth interviews with 12
target users to evaluate DiffSeer. The results demonstrate its effectiveness in
visualizing dynamic weighted graphs
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