254 research outputs found
Distributed Linguistic Representations in Decision Making: Taxonomy, Key Elements and Applications, and Challenges in Data Science and Explainable Artificial Intelligence
Distributed linguistic representations are powerful tools for modelling the uncertainty and complexity of preference information in linguistic decision making. To provide a comprehensive perspective on the development of distributed linguistic representations in decision making, we present the taxonomy of existing distributed linguistic representations. Then, we review the key elements and applications of distributed linguistic information processing in decision making, including the distance measurement, aggregation methods, distributed linguistic preference relations, and distributed linguistic multiple attribute decision making models. Next, we provide a discussion on ongoing challenges and future research directions from the perspective of data science and explainable artificial intelligence.National Natural Science Foundation of China (NSFC) 71971039
71421001,71910107002,71771037,71874023
71871149Sichuan University sksyl201705
2018hhs-5
Effects of dietary oxidized fish oil on the growth performance, intestinal health, and antioxidant capacity of zebrafish
This study aimed to investigate the effects of oxidized fish oil (OFO) on growth performance, intestinal health, and antioxidant function and to determine the minimum concentration of oxidized fish oil to cause irreversible damage to the intestinal tissue structure of zebrafish. A 30-day feeding trial on zebrafish (average weight 0.054 g) was conducted in triplicate groups of fish fed four test diets containing different concentrations of OFO: 0% OFO (OFF, blank control), 2% OFO (OF1), 4% OFO (OF2), and 6% OFO (OF3). The body weight gain (WG), specific growth rates (SGR), feed conversion ratio (FCR), survival rate (SR), and antioxidant function {glutathione peroxidase (GSH-PX), total superoxide dismutase (T-SOD), catalase (CAT), and malondialdehyde (MDA)} were recorded. The intestinal structure was observed at the end of the trial. After the 14-day experimental period, Final body weight (FBW), WG, and SGR decreased significantly with the increase in the concentration of feed OFO (P < 0.05), while FCR showed a downward trend. The activity of T-SOD decreased significantly, the activities of GSH-PX and CAT, and the MDA content increased significantly with the increase in the concentration of feed OFO (P < 0.05). The intestinal morphological damage score showed an upward trend with the increase in the concentration of OFO, and it was significantly higher in group OF2 and OF3 than in group OF1 (P < 0.05). After the 28-day test period, the experimental indexes and intestinal antioxidant function trends were the same as those on 14 days. The increased OFO concentration significantly increased the intestinal morphological injury score (P < 0.05). These results demonstrated that adding 4% OFO to the feed for 14 days could induce irreversible damage to the intestinal tissue structure, weaken the antioxidant function, and decrease the growth performance of zebrafish
Ranking range based approach to MADM under incomplete context and its application in venture investment evaluation
In real-world Multiple Attribute Decision Making (MADM) problem, the attribute weights information may be unknown or partially known. Several approaches have been suggested to address this kind of incomplete MADM problem. However, these approaches depend on the determination of attribute weights, and setting different attribute weight vectors may result in different ranking positions of alternatives. To deal with this issue, this paper develops a novel MADM approach: the ranking range based MADM approach. In the novel MADM approach, the minimum and maximum ranking positions of every alternative are generated using several optimization models, and the average ranking position of every alternative is produced applying the Monte Carlo simulation method. Then, the minimum, maximum and average ranking positions of the alternative are integrated into a new ranking position of the alternative. This novel approach is capable of dealing with venture investment evaluation problems. However, in the venture investment evaluation process, decision makers will present different risk attitudes. To deal with this issue, two ranking range based MADM approaches with risk attitudes are further designed. A case study and a simulation experiment are presented to show the validity of the proposal
Multi-frequency VLBI Observations of the M 84 Inner Jet/Counterjet
Observational studies of inner-most regions of the edge-on jets in nearby
active galactic nuclei (AGN) are crucial to understand their kinematics and
morphology. For the inner jet of the nearby low luminosity AGN in M 84, we
present new high-sensitivity observations with very long baseline
interferometry since 2019, as well as archival Very Long Baseline Array
observations in 2014. We find that the compact core in M 84 has an
inverted-to-flat spectrum from 1.5 to 88 GHz. Based on the turnover frequency
of GHz in the spectrum, we estimated a magnetic field strength of
1-10mG and an electron number density of in the core
region. Three inner jet components within mas from the core are
identified and traced in the images at 22 GHz, whose apparent speeds are 0.11
c, 0.27 c, and 0.32 c, respectively. We calculate the viewing angle of
degree for the inner jet based on the proper motion and the flux ratio of
jet-to-counterjet. A propagating sinusoidal model with a wavelength of mas is used to fit the helical morphology of the jet extended to 20 mas
( Schwarzschild Radii).Comment: 9 pages, 5 figures, accepted by the Ap
Trends and burden in mental disorder death in China from 2009 to 2019: a nationwide longitudinal study
ObjectivesWe aimed to elucidate trends in the crude mortality rate (CMR), age-standardized mortality rate (ASMR), and burden of mental disorders (MD) in China.MethodsA longitudinal observational study was performed using the data of MD deaths in the National Disease Surveillance System (DSPs) during 2009â2019. The mortality rates were normalized using the Segis global population. Trends in the mortality of MDs stratified by age, gender, region, and residency, respectively. The burden of MD was evaluated using age-standardized person years of life loss per 100,000 people (SPYLLs) and average years of life lost (AYLL).ResultA total of 18,178 MD deaths occurred during 2009â2019, accounting for 0.13% of total deaths, and 68.3% of MD deaths occurred in rural areas. The CMR of MD in China was 0.75/100,00 persons (ASMR: 0.62/100,000 persons). The ASMR of all MDs decreased mainly due to the decrease in ASMR in rural residents. Schizophrenia and alcohol use disorder (AUD) were the leading causes of death in MD patients. The ASMR of schizophrenia and AUD was higher in rural residents than in urban residents. The ASMR of MD was highest in the 40â64 age group. As the leading causes of MD burden, the SPYLL and AYLL of schizophrenia were 7.76 person-years and 22.30âyears, respectively.ConclusionAlthough the ASMR of all MDs decreased during 2009â2019, schizophrenia and AUD were still the most important causes of death for MDs. Targeted efforts focusing on men, rural residents, and the 40â64âyears old population should be strengthened to decrease MD-related premature deaths
Hidden Sp(2s+1)- or SO(2s+1)-symmetry and new exactly solvable models in ultracold atomic systems
The high spin ultracold atom models with a special form of contact
interactions, i.e., the scattering lengthes in the total spin-
channels are equal but may be different from that in the spin-0 channel, is
studied. It is found that those models have either -symmetry for the
fermions or -symmetry for the bosons in the spin sector. Based on the
symmetry analysis, a new class of exactly solvable models is proposed and
solved via the Bethe ansatz. The ground states for repulsive fermions are also
discussed.Comment: 6 pages, 2 figure
Source-Frequency Phase-Referencing Observation of AGNs with KaVA Using Simultaneous Dual-Frequency Receiving
The KVN(Korean VLBI Network)-style simultaneous multi-frequency receiving
mode is demonstrated to be promising for mm-VLBI observations. Recently, other
Very long baseline interferometry (VLBI) facilities all over the globe start to
implement compatible optics systems. Simultaneous dual/multi-frequency VLBI
observations at mm wavelengths with international baselines are thus possible.
In this paper, we present the results from the first successful simultaneous
22/43 GHz dual-frequency observation with KaVA(KVN and VERA array), including
images and astrometric results. Our analysis shows that the newly implemented
simultaneous receiving system has brought a significant extension of the
coherence time of the 43 GHz visibility phases along the international
baselines. The astrometric results obtained with KaVA are consistent with those
obtained with the independent analysis of the KVN data. Our results thus
confirm the good performance of the simultaneous receiving systems for the
non-KVN stations. Future simultaneous observations with more global stations
bring even higher sensitivity and micro-arcsecond level astrometric
measurements of the targets.Comment: 8 pages, 6 figures, Published in JKA
Foundations for Self-Determination in Early Childhood: Preliminary Preschool Study
Foundations for self-determination begin in early childhood for children with disabilities with the onset of self-regulation and engagement in activities at home, school, and in the community. This article describes the development and preliminary results of an intervention model that encourages collaborative practices for parents and teachers around short-term goal setting to adjust environments for young children with special needs or at risk for delay. The Foundations Intervention was used with 48 children in authentic early childhood settings and involved parents, teachers, and a facilitator to enhance childrenâs self-regulation and engagement at home and school. Results showed feasibility of the intervention; positive child outcomes in goal attainment, self-regulation, and engagement measures were also evident. When parents and teachers communicated about a childâs strengths and needs within routines at home and school, this appeared to strengthen parent and teacher connections and helped children become more engaged or regulated in daily activities.U.S. Department of Education Grant R324A09026
Virtual histological staining of unlabeled autopsy tissue
Histological examination is a crucial step in an autopsy; however, the
traditional histochemical staining of post-mortem samples faces multiple
challenges, including the inferior staining quality due to autolysis caused by
delayed fixation of cadaver tissue, as well as the resource-intensive nature of
chemical staining procedures covering large tissue areas, which demand
substantial labor, cost, and time. These challenges can become more pronounced
during global health crises when the availability of histopathology services is
limited, resulting in further delays in tissue fixation and more severe
staining artifacts. Here, we report the first demonstration of virtual staining
of autopsy tissue and show that a trained neural network can rapidly transform
autofluorescence images of label-free autopsy tissue sections into brightfield
equivalent images that match hematoxylin and eosin (H&E) stained versions of
the same samples, eliminating autolysis-induced severe staining artifacts
inherent in traditional histochemical staining of autopsied tissue. Our virtual
H&E model was trained using >0.7 TB of image data and a data-efficient
collaboration scheme that integrates the virtual staining network with an image
registration network. The trained model effectively accentuated nuclear,
cytoplasmic and extracellular features in new autopsy tissue samples that
experienced severe autolysis, such as COVID-19 samples never seen before, where
the traditional histochemical staining failed to provide consistent staining
quality. This virtual autopsy staining technique can also be extended to
necrotic tissue, and can rapidly and cost-effectively generate artifact-free
H&E stains despite severe autolysis and cell death, also reducing labor, cost
and infrastructure requirements associated with the standard histochemical
staining.Comment: 24 Pages, 7 Figure
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