cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5517/cc5w4ms
title: CCDC 175045: Experimental Crystal Structure Determination

description: Related Article: A.Knodler, M.Wanner, W.Kaim, J.Fiedler|2002|Z.Anorg.Allg.Chem.|628|1132|doi:10.1002/1521-3749(200206)628:5<1132::AID-ZAAC1132>3.0.CO;2-5
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5w4lr
title: CCDC 175044: Experimental Crystal Structure Determination

description: Related Article: A.Knodler, M.Wanner, W.Kaim, J.Fiedler|2002|Z.Anorg.Allg.Chem.|628|1132|doi:10.1002/1521-3749(200206)628:5<1132::AID-ZAAC1132>3.0.CO;2-5
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5w4nt
title: CCDC 175046: Experimental Crystal Structure Determination

description: Related Article: A.Knodler, M.Wanner, W.Kaim, J.Fiedler|2002|Z.Anorg.Allg.Chem.|628|1132|doi:10.1002/1521-3749(200206)628:5<1132::AID-ZAAC1132>3.0.CO;2-5
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5rdhs
title: CCDC 171445: Experimental Crystal Structure Determination

description: Related Article: H.G.Alt, A.Reb, W.Milius, A.Weis|2001|J.Organomet.Chem.|628|169|doi:10.1016/S0022-328X(01)00781-1
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5rdgr
title: CCDC 171444: Experimental Crystal Structure Determination

description: Related Article: H.G.Alt, A.Reb, W.Milius, A.Weis|2001|J.Organomet.Chem.|628|169|doi:10.1016/S0022-328X(01)00781-1
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5th6n
title: CCDC 173451: Experimental Crystal Structure Determination

description: Related Article: Sheng Hua Liu, Shu Tak Lo, Ting Bin Wen, I.D.Williams, Zhong Yuan Zhou, Chak Po Lau, Guochen Jia|2002|Inorg.Chim.Acta|334|122|doi:10.1016/S0020-1693(02)00750-8
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.17632/c456bnk8bm
title: MMA Fighter Detection Dataset: Annotated UFC Stand-Up Combat Images for Computer Vision

description: Dataset Description:
This dataset addresses a significant gap in computer vision applications for combat sports by providing the first publicly available collection of annotated MMA fighter images specifically designed for object detection within the octagon environment. The primary research motivation is to enable the development of AI-based judging and analysis systems for combat sports, particularly mixed martial arts.

Research Hypothesis and Purpose:
The creation of this dataset is driven by the hypothesis that accurate, automated detection and tracking of fighters during combat can serve as a foundation for AI-assisted judging systems in MMA. Such systems could potentially provide objective metrics on fighter positioning, movement patterns, strike exchanges, and octagon control.

What the Data Shows:
The dataset contains 5,106 high-definition images extracted from 20 professional UFC fights, featuring elite fighters across multiple weight classes. Each image is annotated with bounding boxes identifying fighters using the YOLOv8 format. The data specifically captures stand-up striking exchanges, representing the most visually dynamic and scoring-relevant portions of MMA competition.

Data Collection Methodology:
Images were systematically extracted from official UFC broadcast footage available on UFC's YouTube channels. The fights were selected to ensure diversity in:

- Fighter body types and fighting styles (orthodox vs. southpaw, aggressive vs. defensive)
- Weight classes (bantamweight through light heavyweight)
- Camera angles and broadcast lighting conditions
- Octagon environments and venue settings

All images were resized to 640x640 pixels and manually annotated using the Roboflow platform. The single-class annotation approach (class: "fighter") simplifies the detection task while maintaining sufficient complexity for real-world application development.

Notable Characteristics and Limitations:
A key feature of this dataset is its deliberate focus on stand-up striking scenarios. Ground grappling and cage clinch situations have been intentionally excluded from this version. This design choice makes the dataset particularly suitable for:

- Strike detection and counting algorithms
- Fighter positioning and movement analysis
- Octagon control metrics
- Stand-up engagement classification

Researchers interested in comprehensive MMA analysis including ground game scenarios should note this limitation and may need to supplement with additional data.

How to Interpret and Use the Data:
The dataset follows standard YOLOv8 formatting conventions. Each image in the train/valid/test splits has a corresponding .txt annotation file containing normalized bounding box coordinates (center_x, center_y, width, height) for each detected fighter. The included data.yaml configuration file enables immediate integration with Ultralytics YOLOv8 training pipelines.
DOI: 10.5517/cc5tjm3
title: CCDC 173495: Experimental Crystal Structure Determination

description: Related Article: Sheng Hua Liu, Shu Tak Lo, Ting Bin Wen, I.D.Williams, Zhong Yuan Zhou, Chak Po Lau, Guochen Jia|2002|Inorg.Chim.Acta|334|122|doi:10.1016/S0020-1693(02)00750-8
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5q8lq
title: CCDC 170363: Experimental Crystal Structure Determination

description: Related Article: D.Gelman, S.Dechert, H.Schumann, J.Blum|2002|Inorg.Chim.Acta|334|149|doi:10.1016/S0020-1693(02)00743-0
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5q8mr
title: CCDC 170364: Experimental Crystal Structure Determination

description: Related Article: D.Gelman, S.Dechert, H.Schumann, J.Blum|2002|Inorg.Chim.Acta|334|149|doi:10.1016/S0020-1693(02)00743-0
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.17632/c456bnk8bm.1
title: MMA Fighter Detection Dataset: Annotated UFC Stand-Up Combat Images for Computer Vision

description: Dataset Description:
This dataset addresses a significant gap in computer vision applications for combat sports by providing the first publicly available collection of annotated MMA fighter images specifically designed for object detection within the octagon environment. The primary research motivation is to enable the development of AI-based judging and analysis systems for combat sports, particularly mixed martial arts.

Research Hypothesis and Purpose:
The creation of this dataset is driven by the hypothesis that accurate, automated detection and tracking of fighters during combat can serve as a foundation for AI-assisted judging systems in MMA. Such systems could potentially provide objective metrics on fighter positioning, movement patterns, strike exchanges, and octagon control.

What the Data Shows:
The dataset contains 5,106 high-definition images extracted from 20 professional UFC fights, featuring elite fighters across multiple weight classes. Each image is annotated with bounding boxes identifying fighters using the YOLOv8 format. The data specifically captures stand-up striking exchanges, representing the most visually dynamic and scoring-relevant portions of MMA competition.

Data Collection Methodology:
Images were systematically extracted from official UFC broadcast footage available on UFC's YouTube channels. The fights were selected to ensure diversity in:

- Fighter body types and fighting styles (orthodox vs. southpaw, aggressive vs. defensive)
- Weight classes (bantamweight through light heavyweight)
- Camera angles and broadcast lighting conditions
- Octagon environments and venue settings

All images were resized to 640x640 pixels and manually annotated using the Roboflow platform. The single-class annotation approach (class: "fighter") simplifies the detection task while maintaining sufficient complexity for real-world application development.

Notable Characteristics and Limitations:
A key feature of this dataset is its deliberate focus on stand-up striking scenarios. Ground grappling and cage clinch situations have been intentionally excluded from this version. This design choice makes the dataset particularly suitable for:

- Strike detection and counting algorithms
- Fighter positioning and movement analysis
- Octagon control metrics
- Stand-up engagement classification

Researchers interested in comprehensive MMA analysis including ground game scenarios should note this limitation and may need to supplement with additional data.

How to Interpret and Use the Data:
The dataset follows standard YOLOv8 formatting conventions. Each image in the train/valid/test splits has a corresponding .txt annotation file containing normalized bounding box coordinates (center_x, center_y, width, height) for each detected fighter. The included data.yaml configuration file enables immediate integration with Ultralytics YOLOv8 training pipelines.
DOI: 10.5517/cc5q8ns
title: CCDC 170365: Experimental Crystal Structure Determination

description: Related Article: D.Gelman, S.Dechert, H.Schumann, J.Blum|2002|Inorg.Chim.Acta|334|149|doi:10.1016/S0020-1693(02)00743-0
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5q8pt
title: CCDC 170366: Experimental Crystal Structure Determination

description: Related Article: D.Gelman, S.Dechert, H.Schumann, J.Blum|2002|Inorg.Chim.Acta|334|149|doi:10.1016/S0020-1693(02)00743-0
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5y2kq
title: CCDC 176903: Experimental Crystal Structure Determination

description: Related Article: Yun Chi, S.Ranjan, Po-Wen Chung, Hsi-Ying Hsieh, Shie-Ming Peng, Gene-Hsiang Lee|2002|Inorg.Chim.Acta|334|172|doi:10.1016/S0020-1693(02)00860-5
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.17632/wvv75r5stk
title: Study on the Energy Evolution Mechanism and Fractal Characteristics of Coal Failure under Dynamic Loading

description: The damage to coal-rock masses induced by mining disturbance cannot be overlooked, and the damage deformation characteristics under dynamic loading urgently require investigation. Therefore, this study employs Split Hopkinson Pressure Bar (SHPB) impact tests to reveal the energy evolution mechanism and fractal characteristics of coal failure under dynamic loading. Research indicates that coal deformation exhibits significant strain rate dependence, with both dynamic strength and energy consumption parameters increasing linearly with strain rate. Energy evolution drives crack development through four stages: no damage, micro-crack initiation, macroscopic nucleation, collapse, where the energy consumption required for crack formation exceeds that for crack propagation throughout the entire development process. The fractal dimension of fragmented coal satisfies a positive correlation with both strain rate and fragmentation energy density. Coal possesses favorable self-similarity, and under this condition, increased strain rate enhances the coal’s ability to resist impact through elevated elastic energy density, thereby further strengthening dynamic strength. This confirms intensified fragmentation degree and refined fragment particle size under high energy consumption conditions, providing theoretical support for the prevention and control of mine dynamic disasters.
DOI: 10.5517/cc5y2lr
title: CCDC 176904: Experimental Crystal Structure Determination

description: Related Article: Yun Chi, S.Ranjan, Po-Wen Chung, Hsi-Ying Hsieh, Shie-Ming Peng, Gene-Hsiang Lee|2002|Inorg.Chim.Acta|334|172|doi:10.1016/S0020-1693(02)00860-5
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.17632/wvv75r5stk.1
title: Study on the Energy Evolution Mechanism and Fractal Characteristics of Coal Failure under Dynamic Loading

description: The damage to coal-rock masses induced by mining disturbance cannot be overlooked, and the damage deformation characteristics under dynamic loading urgently require investigation. Therefore, this study employs Split Hopkinson Pressure Bar (SHPB) impact tests to reveal the energy evolution mechanism and fractal characteristics of coal failure under dynamic loading. Research indicates that coal deformation exhibits significant strain rate dependence, with both dynamic strength and energy consumption parameters increasing linearly with strain rate. Energy evolution drives crack development through four stages: no damage, micro-crack initiation, macroscopic nucleation, collapse, where the energy consumption required for crack formation exceeds that for crack propagation throughout the entire development process. The fractal dimension of fragmented coal satisfies a positive correlation with both strain rate and fragmentation energy density. Coal possesses favorable self-similarity, and under this condition, increased strain rate enhances the coal’s ability to resist impact through elevated elastic energy density, thereby further strengthening dynamic strength. This confirms intensified fragmentation degree and refined fragment particle size under high energy consumption conditions, providing theoretical support for the prevention and control of mine dynamic disasters.
DOI: 10.5517/cc5y2ms
title: CCDC 176905: Experimental Crystal Structure Determination

description: Related Article: Yun Chi, S.Ranjan, Po-Wen Chung, Hsi-Ying Hsieh, Shie-Ming Peng, Gene-Hsiang Lee|2002|Inorg.Chim.Acta|334|172|doi:10.1016/S0020-1693(02)00860-5
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5y2nt
title: CCDC 176906: Experimental Crystal Structure Determination

description: Related Article: Yun Chi, S.Ranjan, Po-Wen Chung, Hsi-Ying Hsieh, Shie-Ming Peng, Gene-Hsiang Lee|2002|Inorg.Chim.Acta|334|172|doi:10.1016/S0020-1693(02)00860-5
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5r5sv
title: CCDC 171237: Experimental Crystal Structure Determination

description: Related Article: I.Kownacki, M.Kubicki, B.Marciniec|2002|Inorg.Chim.Acta|334|301|doi:10.1016/S0020-1693(02)00855-1
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5yz46
title: CCDC 177758: Experimental Crystal Structure Determination

description: Related Article: Jiaxi Wang, M.Kapon, J.C.Berthet, M.Ephritikhine, M.S.Eisen|2002|Inorg.Chim.Acta|334|183|doi:10.1016/S0020-1693(02)00798-3
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5r5rt
title: CCDC 171236: Experimental Crystal Structure Determination

description: Related Article: I.Kownacki, M.Kubicki, B.Marciniec|2002|Inorg.Chim.Acta|334|301|doi:10.1016/S0020-1693(02)00855-1
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5r5tw
title: CCDC 171238: Experimental Crystal Structure Determination

description: Related Article: I.Kownacki, M.Kubicki, B.Marciniec|2002|Inorg.Chim.Acta|334|301|doi:10.1016/S0020-1693(02)00855-1
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5sq6v
title: CCDC 172707: Experimental Crystal Structure Determination

description: Related Article: D.Moigno, B.Callejas-Gaspar, J.Gil-Rubio, C.D.Brandt, H.Werner, W.Kiefer|2002|Inorg.Chim.Acta|334|355|doi:10.1016/S0020-1693(02)00801-0
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5v8py
title: CCDC 174210: Experimental Crystal Structure Determination

description: Related Article: D.Koch, K.Polborn, K.Sunkel, W.Beck|2002|Inorg.Chim.Acta|334|365|doi:10.1016/S0020-1693(02)00862-9
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5v3lp
title: CCDC 174052: Experimental Crystal Structure Determination

description: Related Article: A.Pietrzykowski, T.Skrok, S.Pasynkiewicz, M.Brzoska-Mizgalski, J.Zachara, R.Anulewicz-Ostrowska, K.Suwinska, L.B.Jerzykiewicz|2002|Inorg.Chim.Acta|334|385|doi:10.1016/S0020-1693(02)00859-9
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5vbmy
title: CCDC 174270: Experimental Crystal Structure Determination

description: Related Article: D.Koch, K.Polborn, K.Sunkel, W.Beck|2002|Inorg.Chim.Acta|334|365|doi:10.1016/S0020-1693(02)00862-9
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5v3mq
title: CCDC 174053: Experimental Crystal Structure Determination

description: Related Article: A.Pietrzykowski, T.Skrok, S.Pasynkiewicz, M.Brzoska-Mizgalski, J.Zachara, R.Anulewicz-Ostrowska, K.Suwinska, L.B.Jerzykiewicz|2002|Inorg.Chim.Acta|334|385|doi:10.1016/S0020-1693(02)00859-9
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.