35 research outputs found
Out-of-domain GAN inversion via Invertibility Decomposition for Photo-Realistic Human Face Manipulation
The fidelity of Generative Adversarial Networks (GAN) inversion is impeded by
Out-Of-Domain (OOD) areas (e.g., background, accessories) in the image.
Detecting the OOD areas beyond the generation ability of the pre-trained model
and blending these regions with the input image can enhance fidelity. The
"invertibility mask" figures out these OOD areas, and existing methods predict
the mask with the reconstruction error. However, the estimated mask is usually
inaccurate due to the influence of the reconstruction error in the In-Domain
(ID) area. In this paper, we propose a novel framework that enhances the
fidelity of human face inversion by designing a new module to decompose the
input images to ID and OOD partitions with invertibility masks. Unlike previous
works, our invertibility detector is simultaneously learned with a spatial
alignment module. We iteratively align the generated features to the input
geometry and reduce the reconstruction error in the ID regions. Thus, the OOD
areas are more distinguishable and can be precisely predicted. Then, we improve
the fidelity of our results by blending the OOD areas from the input image with
the ID GAN inversion results. Our method produces photo-realistic results for
real-world human face image inversion and manipulation. Extensive experiments
demonstrate our method's superiority over existing methods in the quality of
GAN inversion and attribute manipulation
Advancing Generalizable Remote Physiological Measurement through the Integration of Explicit and Implicit Prior Knowledge
Remote photoplethysmography (rPPG) is a promising technology that captures
physiological signals from face videos, with potential applications in medical
health, emotional computing, and biosecurity recognition. The demand for rPPG
tasks has expanded from demonstrating good performance on intra-dataset testing
to cross-dataset testing (i.e., domain generalization). However, most existing
methods have overlooked the prior knowledge of rPPG, resulting in poor
generalization ability. In this paper, we propose a novel framework that
simultaneously utilizes explicit and implicit prior knowledge in the rPPG task.
Specifically, we systematically analyze the causes of noise sources (e.g.,
different camera, lighting, skin types, and movement) across different domains
and incorporate these prior knowledge into the network. Additionally, we
leverage a two-branch network to disentangle the physiological feature
distribution from noises through implicit label correlation. Our extensive
experiments demonstrate that the proposed method not only outperforms
state-of-the-art methods on RGB cross-dataset evaluation but also generalizes
well from RGB datasets to NIR datasets. The code is available at
https://github.com/keke-nice/Greip
Addressing Variable Dependency in GNN-based SAT Solving
Boolean satisfiability problem (SAT) is fundamental to many applications.
Existing works have used graph neural networks (GNNs) for (approximate) SAT
solving. Typical GNN-based end-to-end SAT solvers predict SAT solutions
concurrently. We show that for a group of symmetric SAT problems, the
concurrent prediction is guaranteed to produce a wrong answer because it
neglects the dependency among Boolean variables in SAT problems. % We propose
AsymSAT, a GNN-based architecture which integrates recurrent neural networks to
generate dependent predictions for variable assignments. The experiment results
show that dependent variable prediction extends the solving capability of the
GNN-based method as it improves the number of solved SAT instances on large
test sets
LucidDreamer: Towards High-Fidelity Text-to-3D Generation via Interval Score Matching
The recent advancements in text-to-3D generation mark a significant milestone
in generative models, unlocking new possibilities for creating imaginative 3D
assets across various real-world scenarios. While recent advancements in
text-to-3D generation have shown promise, they often fall short in rendering
detailed and high-quality 3D models. This problem is especially prevalent as
many methods base themselves on Score Distillation Sampling (SDS). This paper
identifies a notable deficiency in SDS, that it brings inconsistent and
low-quality updating direction for the 3D model, causing the over-smoothing
effect. To address this, we propose a novel approach called Interval Score
Matching (ISM). ISM employs deterministic diffusing trajectories and utilizes
interval-based score matching to counteract over-smoothing. Furthermore, we
incorporate 3D Gaussian Splatting into our text-to-3D generation pipeline.
Extensive experiments show that our model largely outperforms the
state-of-the-art in quality and training efficiency.Comment: The first two authors contributed equally to this work. Our code will
be available at: https://github.com/EnVision-Research/LucidDreame
Ribosomal protein S3 mediates drug resistance of proteasome inhibitor: potential therapeutic application in multiple myeloma
Multiple myeloma (MM) remains incurable due to drug resistance. Ribosomal protein S3 (RPS3) has been identified as a non-Rel subunit of NF-ĪŗB. However, the detailed biological roles of RPS3 remain unclear. Here, we report for the first time that RPS3 is necessary for MM survival and drug resistance. RPS3 was highly expressed in MM, and knockout of RPS3 in MM inhibited cell growth and induced cell apoptosis both in vitro and in vivo. Overexpression of RPS3 mediated the proteasome inhibitor resistance of MM and shortened the survival of MM tumor-bearing animals. Moreover, our present study found an interaction between RPS3 and the thyroid hormone receptor interactor 13 (TRIP13), an oncogene related to MM tumorigenesis and drug resistance. We demonstrated that the phosphorylation of RPS3 was mediated by TRIP13 via PKCĪ“, which played an important role in activating the canonical NF-ĪŗB signaling and inducing cell survival and drug resistance in MM. Notably, the inhibition of NF-ĪŗB signaling by the small-molecule inhibitor targeting TRIP13, DCZ0415, was capable of triggering synergistic cytotoxicity when combined with bortezomib in drug-resistant MM. This study identifies RPS3 as a novel biomarker and therapeutic target in MM
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Other than Han and Weiās poetry, High Tangās poetry contributes most to the formation and development of the poetic style of Ming Dynasty. Based on the achievement of the predecessors, this dissertation attempts to find out the formatting and developing process of the consciousness of High Tang in Ming poetry and reveal the characteristics of this prevailing consciousness and its theoretical significance in the poeticsā history. In this dissertation, taking Canglangās Remarks on Poetry written by Yan Yu as the starting point of the consciousness of High Tang in Ming Dynasty, the values of this consciousness in early Ming period is extracted from the poetic style of central Fujian. In addition, Gao Bingās Tangshi Pinhui, considered as the first distinguishing symbol in both studying and disseminating this consciousness, is believed to be the foundation of poetry creations and studies in the whole Ming Dynasty. Moreover, in an effort to better outlining and understanding Gao Bingās work in literary history, anthologies Kang Linās Yayin Huibian, Li Panlongās Tang Poetry selections from Gujin Shishan, Zhong Xing and Tan Yuanchunās Tangshi Gui, Tang Ruxunās Tangshi Jie, Zhou Jing and Zhou Tingās Tangshi Xuanmai Huitong Pinglin are compared and summarized, mainly in exploring on their origin, development and interrelationship, thus to reveal the paths and features of the poetics development in Gao Bingās era and onwards. Chapter 1 comes with literature review and research purpose, significance and methodology of this dissertation. Chapter 2 introduces the life of Gao Bing, the publication of Tangshi Pinhui and the Poetics background of early Ming, and explores the spread of Tang Poetry since Tang and Song Dynasty and the conception of Tang Poetry before Ming Dynasty. Chapter 3 details the introduction and analysis of the anthologies involved. The major discussion parts of this dissertation starts from Chapter 4 to Chapter 8 in which several theories raised by Gao Bing and having great impacts on Ming Dynasty are analyzed and their inheritance and development in all phases of Ming dynasty is also clarified. These theories are Fundamental elements of Poetry, the awareness of style discrimination, conception of Gushi, Orthodoxy and Variation of poetry, the superiority and inferiority of Li Bai and Du Fu, etc. A comprehensive cognition of the criticism and developing history of Tang Poetry in Ming Dynasty is thus established by comparisons of these anthologies in various perspectives
Long noncoding RNA MALAT1 regulates autophagy associated chemoresistance via miR-23b-3p sequestration in gastric cancer
Abstract Background Chemoresistance has long been recognized as a major obstacle in cancer therapy. Clarifying the underlying mechanism of chemoresistance would result in novel strategies to improve patientās response to chemotherapeutics. Methods lncRNA expression levels in gastric cancer (GC) cells was detected by quantitative real-time PCR (qPCR). MALAT1 shRNAs and overexpression vector were transfected into GC cells to down-regulate or up-regulate MALAT1 expression. In vitro and in vivo assays were performed to investigate the functional role of MALAT1 in autophagy associated chemoresistance. Results We showed that chemoresistant GC cells had higher levels of MALAT1 and increased autophagy compared with parental cells. Silencing of MALAT1 inhibited chemo-induced autophagy, whereas MALAT1 promoted autophagy in gastric cancer cells. Knockdown of MALAT1 sensitized GC cells to chemotherapeutics. MALAT1 acts as a competing endogenous RNA for miR-23b-3p and attenuates the inhibitory effect of miR-23b-3p on ATG12, leading to chemo-induced autophagy and chemoresistance in GC cells. Conclusions Taken together, our study revealed a novel mechanism of lncRNA-regulated autophagy-related chemoresistance in GC, casting new lights on the understanding of chemoresistance
Roles of BDNF, dopamine D-3 receptors, and their interactions in the expression of morphine-induced context-specific locomotor sensitization
Drug seeking, craving, and relapse can be triggered by environmental stimuli that acquire motivational salience through repeated associations with the drug's effects. Previous studies indicated that the dopamine D-3 receptor (Drd3) might be involved in the expression of drug-conditioned responses in rats, and brain-derived neurotrophic factor (BDNF) could modulate Drd3 expression in the nucleus accumbens (NAc). However, the involvement of neural regions with Drd3 activation and the underlying interaction between BDNF and Drd3 in the expression of behavioral responses controlled by a drug-associated environment have remained poorly understood. The present study used a conditioning procedure to assess the roles of BDNF, Drd3, and their interactions in the NAc in the expression of morphine-induced context-specific locomotor sensitization. We showed that the expression of locomotor sensitization in the morphine-paired environment was accompanied by significantly increased expression of Drd3 mRNA and BDNF mRNA and protein levels. Both sensitized locomotion in morphine-paired rats and enhanced Drd3 mRNA were suppressed by intra-NAc infusion of anti-tyrosine kinase receptor B (TrkB) IgG. Furthermore, intra-NAc infusion of the Drd3-selective antagonist SB-277011A significantly decreased the expression of context-specific locomotor sensitization and upregulated BDNF mRNA. Altogether, these results suggest that BDNF/TrkB signaling and activation of Drd3 in the NAc are required for the expression of morphine-induced context-specific locomotor sensitization. (C) 2011 Elsevier B.V. and ECNP. All rights reserved.</p