Yiwei Zhao

ORCID: 0000-0002-2586-8311
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About
Contact & Profiles
Research Areas
  • Parallel Computing and Optimization Techniques
  • Advanced Data Storage Technologies
  • Advanced Memory and Neural Computing
  • Software System Performance and Reliability
  • Advancements in Battery Materials
  • Atmospheric and Environmental Gas Dynamics
  • Insect and Arachnid Ecology and Behavior
  • Educational Technology and Pedagogy
  • Advanced Battery Materials and Technologies
  • Image Processing Techniques and Applications
  • Hydrocarbon exploration and reservoir analysis
  • Service and Product Innovation
  • Methane Hydrates and Related Phenomena
  • Statistical Methods and Inference
  • Financial Risk and Volatility Modeling
  • Coal Properties and Utilization
  • Distributed systems and fault tolerance
  • Intellectual Capital and Performance Analysis
  • Cloud Computing and Remote Desktop Technologies
  • Micro and Nano Robotics
  • Data Stream Mining Techniques
  • Software Engineering Research
  • IoT and Edge/Fog Computing
  • Catalysis for Biomass Conversion
  • Petri Nets in System Modeling

Carnegie Mellon University
2022-2025

Beijing Jiaotong University
2024

Northeast Normal University
2024

Longwood University
2022-2024

China University of Petroleum, Beijing
2020-2023

China Three Gorges University
2023

Changchun University of Technology
2023

Tsinghua University
2016-2023

North University of China
2023

Shanxi University of Finance and Economics
2020

Using a unique sample constructed by 600 investors’ responses to structured questionnaire, we investigate the impact of behavioral biases on investment decision making in Pakistani equity market, as well roles that market anomalies and financial literacy play process. We first document empirical evidence support are closely associated these two factors significantly influence making. The additional analyses confirm mediating certain association between their Furthermore, reveals moderates...

10.3390/risks11060109 article EN cc-by Risks 2023-06-06

ECO of HMF to FDCA and ECR BHMF with high yield have been studied on CuNi-based bimetallic catalysts. The presence the Cu–O–Ni interfacial area was beneficial for promoting catalytic performance in ECO.

10.1039/d4qi00145a article EN Inorganic Chemistry Frontiers 2024-01-01

Operators of online software services periodically collect various measures with many attributes. When a measure becomes abnormal, indicating service problems such as reliability degrade, operators would like to rapidly and accurately localize the root cause attribute combinations within huge multi-dimensional search space. Unfortunately, previous approaches are not generic or robust in that they all suffer from impractical assumptions, handling only directly collected but derived ones,...

10.1109/issre.2019.00015 article EN 2019-10-01

Memory latency and bandwidth are significant bottlenecks in designing in-memory indexes. Processing-in-memory (PIM), an emerging hardware design approach, alleviates this problem by embedding processors memory modules, enabling low-latency access whose aggregated scales linearly with the number of PIM modules. Despite recent work balanced comparison-based indexes on systems, building efficient tries for PIMs remains open challenge due to tries' inherently unbalanced shape.

10.1145/3558481.3591070 article EN cc-by 2023-05-31

The performance of today's in-memory indexes is bottlenecked by the memory latency/bandwidth wall. Processing-in-memory (PIM) an emerging approach that potentially mitigates this bottleneck, enabling low-latency access whose aggregate bandwidth scales with number PIM nodes. There inherent tension, however, between minimizing inter-node communication and achieving load balance in systems, presence workload skew. This paper presents PIM-tree , ordered index for systems achieves both low high...

10.14778/3574245.3574275 article EN Proceedings of the VLDB Endowment 2022-12-01

Processing-in-memory (PIM) is an emerging technology to alleviate the high cost of data movement by pushing computation into/near memory modules. There inherent tension, however, between minimizing communication (data movement) and achieving load balance in PIM systems presence workload skew. This work introduces PIM-tree, a PIM-based index that simultaneously achieves low communication, good balance, space consumption. It theoretical bounds Model efficient on real-world machine,...

10.1145/3597635.3598029 article EN 2023-07-18

The mouthparts of some animals are highly evolved fluid transporters. Most honeybees dip viscous nectar in a cyclic fashion by using protrusible tongues with active hairs that can erect rhythmically. glossal flatten when the tongue extends into nectar, and then outwards like an umbrella to catch while retracting. This paper examines potential capability allocating duration protraction retraction phases for sake energy saving. A physical model is established analyze consumption induced drag,...

10.1088/1361-6463/aac0a5 article EN Journal of Physics D Applied Physics 2018-05-23

In this paper, we propose an Android-based distributed computing framework for accelerating DNN inference on Android edge devices. We experimentally demonstrate that the proposed can reduce CPU utilization by 24 % (making close to of idle status), power consumption 59.8 71.8 %, without leading high-bandwidth througput. The be applied various devices enable cooperation among in a manner, accelerate inference, and enrich functionality enhance user experience.

10.1109/sec54971.2022.00082 article EN 2022-12-01

Shale gas is an important alternative natural source that can meet China's growing energy demand. However, methane emissions during shale production could largely determine whether it be considered as a bridging clean source. In this study, we performed emission measurements using three methods (on-site optical imaging, on-site patrolling, and downwind measurement) at sites in Sichuan province, China, covering 18 well with 81 wells. The results showed flowback water tanks were the major...

10.1016/j.accre.2023.07.001 article EN cc-by Advances in Climate Change Research 2023-07-07

Li3 VO4 is a promising anode material for use in lithium-ion batteries, however, the conventional synthesis methods anodes involve separate of lithium and carbon sources, resulting inefficient contact low crystalline quality. Herein, polyacrylate (LiPAA) was utilized as dual-functional source an in-situ polymerization followed by spray-drying method employed to synthesize . LiPAA serves dual purpose, acting both improve crystal process confine particle size within desired volume during...

10.1002/cssc.202300979 article EN ChemSusChem 2023-08-09

Compared with traditional verification method for structural correctness of model based on Petri net graph reduction, The in text adds reduction methods the general iterative structure and adjacent structure. A converting non-freely chosen WF-net into freely equivalence is put forward, therefore realizing all kinds workflow process model.

10.1109/icime.2010.5477436 article EN 2010-01-01

This paper provides an overview of DM6467 HD-VICP (High Definition-Video Imaging Co-processor) subsystem functional simulator. And then, it describes details on installing the simulator and setting up in Code Composer Studio. Finally, how you can effectively use to achieve optimal performance, explains shared memory debug access.

10.1109/icnds.2010.5479404 article EN 2010-05-01

Distributed generator (DG) decentralized access to the distribution network, so that current characteristics presented during fault period are different from traditional and more complicated. The variation of DG's output in time periods leads inability stage protection accurately discriminate. In this paper, firstly, low-voltage ride-through control strategy is considered, characteristic model DG port established. Then, after multiple DGs analyzed. optimization scheme adjusting value...

10.1117/12.3024480 article EN 2024-05-13

Using a hand-collected sample of non-financial firms listed on the Pakistan Stock Exchange (PSX) over period 2011–2021, we examine joint effect intellectual capital and innovation financial vulnerability firm, which is an important risk factor that firm may face in its operation. We first use static fixed-effect panel model as our baseline regression find level strengthens positive adoption product market reducing firm. also conduct additional analyses using alternative measures...

10.3390/jrfm17020047 article EN Journal of risk and financial management 2024-01-26

Aiming at the problem that traditional short-circuit current calculation method is not applicable to Distributed Generation (DG) accessing distribution network, paper proposes a partitioning considering degree of voltage drop grid-connected point DG. Firstly, output characteristics DG in process low ride through are analyzed, and equivalent model fault state obtained. Secondly, by studying network law after networks under different penetration rates, used as partition index network. Then,...

10.32604/ee.2024.051409 article EN Energy Engineering 2024-01-01

This paper analyzes literature related to the Learning Management System (LMS) published in four journals of educational technology, and uses SWOT analysis analyze views LMS colleges universities, reviews reflects on college education. The achievements existing problems research will lay foundation for future upgrade application make recommendations.

10.1109/ic3.2018.00089 article EN 2018-08-01

The performance of today's in-memory indexes is bottlenecked by the memory latency/bandwidth wall. Processing-in-memory (PIM) an emerging approach that potentially mitigates this bottleneck, enabling low-latency access whose aggregate bandwidth scales with number PIM nodes. There inherent tension, however, between minimizing inter-node communication and achieving load balance in systems, presence workload skew. This paper presents PIM-tree, ordered index for systems achieves both low high...

10.48550/arxiv.2211.10516 preprint EN other-oa arXiv (Cornell University) 2022-01-01

To overcome the shortcomings of PageRank algorithm that neglects time factor in author evaluation, a new method for evaluating author's academic influence is proposed. Firstly, applied to calculate PR value social network distinguish contribution. Secondly, timePageRank (abbreviated as T-PR) given by incorporating citation heterogeneity paper into algorithm. Finally, literature data field information science taken an example make empirical analysis. By comparing with algorithm, it found T-PR...

10.1109/ihmsc55436.2022.00026 article EN 2022-08-01
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