Yukun Shi

ORCID: 0000-0002-1412-179X
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About
Contact & Profiles
Research Areas
  • Paleontology and Stratigraphy of Fossils
  • Paleontology and Evolutionary Biology
  • Geology and Paleoclimatology Research
  • Geological and Geophysical Studies
  • Geological and Geochemical Analysis
  • Evolution and Paleontology Studies
  • Plant Diversity and Evolution
  • Marine Biology and Ecology Research
  • Geochemistry and Elemental Analysis
  • Geochemistry and Geologic Mapping
  • Geological Modeling and Analysis
  • Morphological variations and asymmetry
  • Digital Imaging for Blood Diseases
  • Geological formations and processes
  • Pleistocene-Era Hominins and Archaeology
  • Advanced Steganography and Watermarking Techniques
  • Biomedical Text Mining and Ontologies
  • Genomics and Phylogenetic Studies
  • Digital Media Forensic Detection
  • Semantic Web and Ontologies
  • Advanced Research in Science and Engineering
  • Advanced Data Compression Techniques
  • Domain Adaptation and Few-Shot Learning
  • Time Series Analysis and Forecasting
  • Advanced Image Processing Techniques

Nanjing University
2014-2024

University of Science and Technology of China
2024

State Key Laboratory of Palaeobiology and Stratigraphy
2016-2021

Nanjing Institute of Geology and Paleontology
2009-2021

Chinese Academy of Sciences
2009-2015

Natural History Museum
2015

New Jersey Institute of Technology
1999-2003

A finer record of biodiversity We have pressing, human-generated reasons to explore the influence environmental change on biodiversity. Looking into past can not only inform our understanding this relationship but also help us understand current change. Paleontological records depend fossil availability and predictive modeling, however, thus tend give a picture with large temporal jumps, millions years wide. Such scale makes it difficult truly action forces ecological processes. Enabled by...

10.1126/science.aax4953 article EN Science 2020-01-17

Robustness is a crucially important issue in watermarking. against geometric distortion and JPEG compression at the same time with blind extraction remains especially challenging. A discrete wavelet transform-discrete Fourier transform (DWT-DFT) composite image watermarking algorithm that robust both affine transformation proposed. The improves robustness by using new embedding strategy, watermark structure, 2D interleaving, synchronization technique. spread-spectrum-based informative...

10.1109/tcsvt.2003.815957 article EN IEEE Transactions on Circuits and Systems for Video Technology 2003-08-01

Abstract Identification of fossil species is crucial to evolutionary studies. Recent advances from deep learning have shown promising prospects in image identification. However, the quantity and quality labelled images are often limited due preservation, conditioned sampling expensive inconsistent label annotation by domain experts, which pose great challenges training learning‐based classification models. To address these challenges, we follow idea wisdom crowds propose a multiview ensemble...

10.1111/2041-210x.14229 article EN cc-by-nc Methods in Ecology and Evolution 2023-10-16

Abstract: In Southwest China, Gondwana‐affinity Permo‐Carboniferous deposits are known to occur in the Northern Himalayas, Lhasa Block and South Qiangtang Block, Baoshan Tengchong Bock. The three‐fold clastic successions, namely diamictite–pebbly mudstone–dark mudstone shale commonly interpreted as representing of glacial–deglacial–post‐glacial periods marine environments. Deposits, for example, Dingjiazhai Formation Kongshuhe Yongzhu Group Poindo all succeeded by carbonate deposits. This...

10.1111/j.1755-6724.2011.00406.x article EN Acta Geologica Sinica - English Edition 2011-04-01

Two Permian fusulinid faunas, including nine species belonging to six genera, from the northern Tengchong Block, Southwest China, are studied and compared with coeval faunas other blocks Gondwana-affinity South China. in Kongshuhe section, fauna is dominated by Eoparafusulina lower part of Dadongchang Formation possibly suggests an age Sakmarian, while Shanmutang middle mainly consists Chusenella mingguangensis n. sp. Monodiexodina gigas sp., indicating a Wordian Capitanian age. Study has...

10.1666/06-036.1 article EN Journal of Paleontology 2007-12-21

New fusulinid collections from the Baoshan Block in southwest China necessitate paleobiogeographic reevaluation of Mid-Permian fusulinids this region. From Xiaoxinzhai Section southern Block, 32 species nine genera are described and illustrated. Among them, Eopolydiexodina parva is a new species, elements Neoschwagerinidae Verbeekinidae confirmed. The studied ascendingly grouped into three biozones: Schwagerina yunnanensis Range Zone, Abundance Sumatrina annae Zone. lower two could be...

10.1666/08-071.1 article EN Journal of Paleontology 2009-11-01

Early Permian fusulinids from both northern and southern parts of the Baoshan Block (western Yunnan, Southwest China) are illustrated compared with coeval fusulinid faunas other peri-Gondwana areas to disclose paleogeographic information. Systematic study collected materials examination published data Dingjiazhai area, Block, show that there include Eoparafusulina pseudosimplex Pseudofusulina macilenta. Fusulinids Aluotian Section, consist P. minitumidiscula n. sp., macilenta, tumidiscula,...

10.1666/10-039.1 article EN Journal of Paleontology 2011-05-01

Abstract New samples of fusulinids collected in the Tengchong Block, western Yunnan, China, are systematically studied and presented here. The fusulinid fauna from Xishancun section Shanmutang area is dominated by Chusenella Nankinella , whereas that Shuangheyan composed mainly Schwagerina . Both faunas dated as Roadian–Capitanian (middle Permian). These new findings integrated with taxa reported earlier block to demonstrate taxonomic features paleogeographic significance Permian fusulinids....

10.1017/jpa.2016.122 article EN Journal of Paleontology 2016-11-22

Stratigraphic knowledge, the cornerstone of geoscience, needs to be represented by Knowledge Graph based upon ontology, in order apply state-of-the-art big-data techniques. This study aims comprehensively construct ontologies for stratigraphic domain. has been achieved a federated, crowd intelligence-based collaboration among domain experts major subdisciplines. The initial step is enumerate key terms from authoritative references and incorporate them into Geoscience Professional Graphs...

10.1016/j.gsf.2022.101461 article EN cc-by-nc-nd Geoscience Frontiers 2022-08-28

Abstract Fusulinid foraminifera are among the most common microfossils of Late Palaeozoic and act as key fossils for stratigraphic correlation, paleogeographic paleoenvironmental indication, evolutionary studies marine life. Accurate efficient identification forms basis such research involving fusulinids but is limited by lack digitized image datasets. This article presents first large dataset containing 2,400 images individual samples subjected to 16 genera all six fusulinid families...

10.1002/gdj3.215 article EN cc-by Geoscience Data Journal 2023-08-07

Abstract A newly discovered Verbeekina assemblage from the Xiaoxinzhai Section in Baoshan Block western Yunnan, China, provides additional data for better understanding fusulinid biostratigraphy and thermal condition of middle Permian (Guadalupian) seawater this block. This comprises 11 species six genera, including , Pseudodoliolina Sumatrina Yangchienia Xiaoxinzhaiella ? Rugosochusenella . The age is considered to be Midian (approximately Capitanian), based on combined evidence...

10.1017/jpa.2014.24 article EN Journal of Paleontology 2015-03-01
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