Results 61 to 70 of about 30,788 (321)

The Tumor‐to‐Endothelial Transfer of FTO Promotes Vascular Remodeling and Metastasis in Nasopharyngeal Carcinoma

Advanced Science, EarlyView.
Integrated omics analysis of matched primary and liver metastatic NPC tumors reveals a unique NOTCH1+ CSC subpopulation exhibiting enhanced stemness properties and tumorigenic capacity. With in vitro and in vivo assays, exosomal transfer of tumor‐derived FTO from NOTCH1+ cells to the endothelium promotes vascular permeability and metastatic potential ...
Chun Wu, Xuefei Liu, Liwen Gu, Jingru Lian, Yuting Wang, Yixin Cheng, Lianhui Duan, Guanyin Huang, Siqi Chen, Boxi Zhao, Sailan Liu, Yufan Yang, Shuqian Zheng, Zijian Lu, Wanping Guo, Jianyang Hu, Wenjing Wang, Zhixiang Zuo, Haiqiang Mai, LinQuan Tang, Songfa Zhang, Feiqiu Wen, Xin Hong, Ling Guo   +23 more
wiley   +1 more source

Imagine and Imitate: Cost-Effective Bidding under Partially Observable Price Landscapes

Big Data and Cognitive Computing
Real-time bidding has become a major means for online advertisement exchange. The goal of a real-time bidding strategy is to maximize the benefits for stakeholders, e.g., click-through rates or conversion rates.
Xiaotong Luo, Yongjian Chen, Shengda Zhuo, Jie Lu, Ziyang Chen, Lichun Li, Jingyan Tian, Xiaotong Ye, Yin Tang   +8 more
doaj   +1 more source

Toward Affective Dialogue Modeling using Partially Observable Markov Decision Processes [PDF]

, 2006
We propose a novel approach to developing a dialogue model which is able to take into account some aspects of the user’s emotional state and acts appropriately.
Bui, T.H., Nijholt, A., Poel, M., Zwiers, J.   +3 more
core   +1 more source

Probabilistic Majorization of Partially Observable Markov Decision Processes

, 2023
Markov Decision Processes (MDPs) are wielded by the Reinforcement Learning and control community as a framework to bestow artificial agents with the ability to make autonomous decisions. Control as Inference (CaI) is a tangent research direction that aims to recast optimal decision making as an instance of probabilistic inference, with the dual hope to
openaire   +2 more sources

Single‐Field Evolution Rule Governs the Dynamics of Representational Drift in Mouse Hippocampal Dorsal CA1 Region

Advanced Science, EarlyView.
Long‐term hippocampal place‐code dynamics are investigated using calcium imaging across weeks of maze navigation. Analyses reveal a novelty‐irrelevant Single‐Field Evolution Rule (SFER), where active fields promote persistence and inactive fields decline.
Cong Chen, Shuyang Yao, Sihui Cheng, Jiayi Tian, Ang Li, Yusen Yan, Xiang Zhang, Yuanjing Liu, Yumeng Wang, Qichen Cao, Chenglin Miao   +10 more
wiley   +1 more source

Integrating POMDP Models with PID Controllers with Application to Counting Doors on a Corridor

Proceedings of the International Florida Artificial Intelligence Research Society Conference
We propose a hybrid planning approach integrating Partially Observable Markov Decision Processes (POMDPs) with Proportional-Integral-Derivative (PID) controllers for mobile robot navigation.
Sara Zuiran, Rwaida Alssadi, Jolie Elliott, Phi Duong, Chinedum Ajabor, Alwaleed Alsaleemi, Samuel Boddepalli, Vamshi Gattikoppula, Pavan Manigandla, Marius Silaghi   +9 more
doaj   +1 more source

POMDP-lite for Robust Robot Planning under Uncertainty

, 2016
The partially observable Markov decision process (POMDP) provides a principled general model for planning under uncertainty. However, solving a general POMDP is computationally intractable in the worst case.
Chen, Min, Frazzoli, Emilio, Hsu, David, Lee, Wee Sun   +3 more
core   +1 more source

Two Novel S‐methyltransferases Confer Dimethylsulfide Production in Actinomycetota

Advanced Science, EarlyView.
This study identifies two novel S‐adenosine‐methionine‐dependent methyltransferases, MddM1 and MddM2, in actinomycetes from the Mariana Trench. These enzymes can convert toxic hydrogen sulfide (H2S) and methanethiol (MeSH) into dimethylsulfide (DMS), serving as a cellular detoxification and oxidative stress response.
Ruihong Guo, Zihua Guo, Yi Zhou, Yunhui Zhang, Haojin Cheng, Rebecca Devine, Chuang Sun, Ronghua Liu, Yanfen Zheng, Andrew J. Gates, Jonathan D. Todd, Xiao‐Hua Zhang   +11 more
wiley   +1 more source

Investigations on Speed Planning Algorithm and Trajectory Tracking Control of Intersection Scenarios Without Traffic Signs

IEEE Access, 2023
Efficient intersection planning is one of the most challenging tasks for an autonomous vehicle at present. The degree of response to other traffic participants and whether the path tracking effect is good are the key aspects that determine the ...
Wei Liang, Haitao Xing
doaj   +1 more source

COACHES Cooperative Autonomous Robots in Complex and Human Populated Environments [PDF]

, 2015
Public spaces in large cities are increasingly becoming complex and unwelcoming environments. Public spaces progressively become more hostile and unpleasant to use because of the overcrowding and complex information in signboards.
Erdem, Esra, IOCCHI, Luca, Jeanpierre, Laurent, LAZARO GRANON, MARIA TERESA, Mouaddib, Abdel Illah, Sahli, Hichem   +5 more
core   +2 more sources