1,882 research outputs found
Aluminium nitride thin film acoustic wave device for microfluidic and biosensing applications
Multimodal Sentiment Analysis Based on Deep Learning: Recent Progress
Multimodal sentiment analysis is an important research topic in the field of NLP, aiming to analyze speakers\u27 sentiment tendencies through features extracted from textual, visual, and acoustic modalities. Its main methods are based on machine learning and deep learning. Machine learning-based methods rely heavily on labeled data. But deep learning-based methods can overcome this shortcoming and capture the in-depth semantic information and modal characteristics of the data, as well as the interactive information between multimodal data. In this paper, we survey the deep learning-based methods, including fusion of text and image and fusion of text, image, audio, and video. Specifically, we discuss the main problems of these methods and the future directions. Finally, we review the work of multimodal sentiment analysis in conversation
Regression-based heterogeneity analysis to identify overlapping subgroup structure in high-dimensional data
Heterogeneity is a hallmark of complex diseases. Regression-based
heterogeneity analysis, which is directly concerned with outcome-feature
relationships, has led to a deeper understanding of disease biology. Such an
analysis identifies the underlying subgroup structure and estimates the
subgroup-specific regression coefficients. However, most of the existing
regression-based heterogeneity analyses can only address disjoint subgroups;
that is, each sample is assigned to only one subgroup. In reality, some samples
have multiple labels, for example, many genes have several biological
functions, and some cells of pure cell types transition into other types over
time, which suggest that their outcome-feature relationships (regression
coefficients) can be a mixture of relationships in more than one subgroups, and
as a result, the disjoint subgrouping results can be unsatisfactory. To this
end, we develop a novel approach to regression-based heterogeneity analysis,
which takes into account possible overlaps between subgroups and high data
dimensions. A subgroup membership vector is introduced for each sample, which
is combined with a loss function. Considering the lack of information arising
from small sample sizes, an norm penalty is developed for each membership
vector to encourage similarity in its elements. A sparse penalization is also
applied for regularized estimation and feature selection. Extensive simulations
demonstrate its superiority over direct competitors. The analysis of Cancer
Cell Line Encyclopedia data and lung cancer data from The Cancer Genome Atlas
shows that the proposed approach can identify an overlapping subgroup structure
with favorable performance in prediction and stability.Comment: 33 pages, 16 figure
Seismic control of a SDOF structure through electromagnetic resonant shunt tuned mass-damper-inerter and the exact H2 optimal solutions
This paper proposes a novel inerter-based component dynamic vibration absorber, namely, electromagnetic resonant shunt tuned mass-damper-inerter (ERS-TMDI). To analyze the performances of the ERS-TMDI, the combined ERS-TMDI and a single degree of freedom system are developed. The H2 norm performances of the ERS-TMDI, whose aim is to minimize the root mean square (RMS) value of structure damage under random ground acceleration excitation, are introduced in comparison with the energy-harvesting series electromagnetic tuned mass dampers (ERS-TMDs), tuned mass-damper-inerter (TMDI) and the classical tuned mass damper (TMD). The closed-form solutions, including the optimal mechanical tuning ratio, the optimal electrical damping ratio, the optimal electrical tuning ratio and the optimal electromagnetic mechanical coupling coefficient, are obtained. It is shown that the ERS-TMDI is superior to both the classical TMD and the ERS-TMD systems for protection from structure damage. Specifically, from the frequency-domain analyses, a case study is performed to illustrate the effectiveness, robustness of the ERS-TMDI and the sensitivity to the parameter changes. From the time-domain analyses, four types of earthquakes are studied to demonstrate the performances of vibration suppression
Differences and common ground in the frameworks of health-related quality of life in traditional Chinese medicine and modern medicine:a systematic review
Purpose: This systematic review aims to explore the conceptualization of health-related quality of life (HRQoL) in China. With HRQoL influenced by both modern medicine (MM) and traditional Chinese medicine (TCM), the study seeks to identify differences and common ground between the frameworks of MM and TCM as defined in the literature. Method: A systematic literature search was conducted across three Chinese databases and four English databases. The data was extracted including title, author(s), publication year, region, aim, method, category, and result. When sorting data, we broke down the HRQoL frameworks into concepts, domains and facets, with a focus on overlapped facets between the frameworks of MM and TCM. Results: A total of 31 studies were included. In the perspective of TCM, HRQoL is centered around three key 'concepts': (1) 'xingshentongyi' (unity of body and spirit), (2) 'tianrenheyi' (harmony between man and nature), and (3) 'qiqing' (seven emotional forms). In contrast, the MM framework comprises 'physical,' 'mental,' 'social,' and 'environment' domains. Out of the 59 unique facets identified, 28 are common to both TCM and MM, 9 specific to TCM, and 22 specific to MM. 'Appetite,' 'sleep,' and 'energy' are the most frequently mentioned facets in both frameworks. Conclusion: The concept of HRQoL in China encompasses frameworks rooted in both TCM and MM. While TCM and MM have distinct healthcare approaches, they share overlapping domains when measuring HRQoL through questionnaires. Furthermore, TCM and MM demonstrate considerable convergence in terms of HRQoL facets, showing the potential for utilizing HRQoL instruments across different cultural settings.</p
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