cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.7116310
title: Query structures from Figure 4 of Comparison of Substructure Search Systems

description: These 29 SMARTS queries come from Figure 4 on page 193 of: Martin G. Hicks and Clemens Jochum,<br> Substructure search systems. 1. Performance comparison of the<br> MACCS, DARC, HTSS, CAS Registry MVSSS, and S4 substructure search systems,<br> Journal of Chemical Information and Computer Sciences 1990 30 (2), 191-199<br> https://doi.org/10.1021/ci00066a018 The SMARTS queries are in Figure 4 (page 193). A copy of the original table is in 10.1021_ci00066a018_Figure_4.pdf . The LibreOffice spreadsheet file 10.1021_ci00066a018.ods contain two sheets. The "Overview" sheet gives a summary of the data set. The "Query structures" sheet contains the data from Figure 4. The Hicks and Jochum paper does not give the query as SMARTS strings. Instead, the queries were translated to SMARTS in the following paper: Dimitris K. Agrafiotis, Victor S. Lobanov, Maxim Shemanarev,<br> Dmitrii N. Rassokhin, Sergei Izrailev, Edward P. Jaeger,<br> Simson Alex, and Michael Farnum<br> Efficient Substructure Searching of Large Chemical Libraries:<br> The ABCD Chemical Cartridge<br> Journal of Chemical Information and Modeling 2011 51 (12), 3113-3130<br> https://doi.org/10.1021/ci200413e Two of the SMARTS patterns were changed to produce this dataset. During cross-checking with the original paper, and with the help of SMARTSviewer, I believe I identified two mistakes in the conversion, described in the README.
DOI: 10.5519/qd.8hed7ehx
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (4807 records)
DOI: 10.5281/zenodo.7116326
title: Table 2 from Efficient Substructure Searching of Large Chemical Libraries: The ABCD Chemical Cartridge

description: These 46 SMARTS queries come from Table 2 of: Dimitris K. Agrafiotis, Victor S. Lobanov, Maxim Shemanarev,<br> Dmitrii N. Rassokhin, Sergei Izrailev, Edward P. Jaeger, Simson<br> Alex, and Michael Farnum,<br> Efficient Substructure Searching of Large Chemical Libraries: The<br> ABCD Chemical Cartridge,<br> Journal of Chemical Information and Modeling 2011 51 (12), 3113-3130<br> https://doi.org/10.1021/ci200413e The SMARTS queries are in Table 2 (pages 3122-3123). A copy of the original table is in 10.1021_ci200413e_Table_2.pdf . The LibreOffice spreadsheet file 10.1021_ci200413e.ods contains three worksheets. - The "Overview" sheet contains a summary of the data set. - The "Table 2" sheet contains the table data. - The "ID map" sheet contains a mapping from the labels used in Agrafiotis et al. to the labels used in the original papers. This dataset is derived from two other data sets: Chemical Substructure Search in SQL<br> Adel Golovin and Kim Henrick<br> Journal of Chemical Information and Modeling 2009 49 (1), 22-27<br> https://doi.org/10.1021/ci8003013<br> See also doi:10.5281/zenodo.7116311 Martin G. Hicks and Clemens Jochum<br> Substructure search systems. 1. Performance comparison of the MACCS, DARC, HTSS,<br> CAS Registry MVSSS, and S4 substructure search systems<br> Journal of Chemical Information and Computer Sciences 1990 30 (2), 191-199<br> https://doi.org/10.1021/ci00066a018<br> See also doi:10.5281/zenodo.7116311 See the README for full details.
DOI: 10.5281/zenodo.7116325
title: Table 2 from Efficient Substructure Searching of Large Chemical Libraries: The ABCD Chemical Cartridge

description: These 46 SMARTS queries come from Table 2 of: Dimitris K. Agrafiotis, Victor S. Lobanov, Maxim Shemanarev,<br> Dmitrii N. Rassokhin, Sergei Izrailev, Edward P. Jaeger, Simson<br> Alex, and Michael Farnum,<br> Efficient Substructure Searching of Large Chemical Libraries: The<br> ABCD Chemical Cartridge,<br> Journal of Chemical Information and Modeling 2011 51 (12), 3113-3130<br> https://doi.org/10.1021/ci200413e The SMARTS queries are in Table 2 (pages 3122-3123). A copy of the original table is in 10.1021_ci200413e_Table_2.pdf . The LibreOffice spreadsheet file 10.1021_ci200413e.ods contains three worksheets. - The "Overview" sheet contains a summary of the data set. - The "Table 2" sheet contains the table data. - The "ID map" sheet contains a mapping from the labels used in Agrafiotis et al. to the labels used in the original papers. This dataset is derived from two other data sets: Chemical Substructure Search in SQL<br> Adel Golovin and Kim Henrick<br> Journal of Chemical Information and Modeling 2009 49 (1), 22-27<br> https://doi.org/10.1021/ci8003013<br> See also doi:10.5281/zenodo.7116311 Martin G. Hicks and Clemens Jochum<br> Substructure search systems. 1. Performance comparison of the MACCS, DARC, HTSS,<br> CAS Registry MVSSS, and S4 substructure search systems<br> Journal of Chemical Information and Computer Sciences 1990 30 (2), 191-199<br> https://doi.org/10.1021/ci00066a018<br> See also doi:10.5281/zenodo.7116311 See the README for full details.
DOI: 10.5281/zenodo.7117532
title: lorius_lory_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117531
title: lorius_lory_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117580
title: gallinago_jamesoni_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117579
title: gallinago_jamesoni_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117590
title: gallinago_hardwickii_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117589
title: gallinago_hardwickii_zanfona_1.fasta.gz

description: .
DOI: 10.25909/21163195.v1
title: Anisotropic force-matching coarse-graining with neural networks data files

description: Simulation files for all-atom simulation of benzene.
DOI: 10.5281/zenodo.7117597
title: gallinago_megala_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117596
title: gallinago_megala_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117605
title: gallinago_nigripennis_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117604
title: gallinago_nigripennis_zanfona_1.fasta.gz

description: .
DOI: 10.34740/kaggle/dsv/4245843
title: arXiv Dataset
DOI: 10.5281/zenodo.7117613
title: gallinago_paraguaiae_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117612
title: gallinago_paraguaiae_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117624
title: gallinago_solitaria_zanfona_1.fasta.gz

description: .
DOI: 10.5281/zenodo.7117623
title: gallinago_solitaria_zanfona_1.fasta.gz

description: .
DOI: 10.5517/ccdc.csd.cc2bz4p5
title: CCDC 2173927: Experimental Crystal Structure Determination

description: Related Article: Yangxu Chen, Bai Shi, Huiping Yin, Yinping Liu, Chenxia Yu, Kai Zhang, Tuanjie Li, Changsheng Yao|2022|Org.Chem.Front.|9|5191|doi:10.1039/D2QO00908K
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/ccdc.csd.cc2c11s8
title: CCDC 2175759: Experimental Crystal Structure Determination

description: Related Article: Nikolay V. Shcherbakov, Gleb D. Titov, Elena I. Chikunova, Ilya P. Filippov, Nikolai V. Rostovskii, Vadim Yu. Kukushkin, Alexey Yu. Dubovtsev|2022|Org.Chem.Front.|9|5133|doi:10.1039/D2QO01105K
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/ccdc.csd.cc2c14cy
title: CCDC 2175839: Experimental Crystal Structure Determination

description: Related Article: Nikolay V. Shcherbakov, Gleb D. Titov, Elena I. Chikunova, Ilya P. Filippov, Nikolai V. Rostovskii, Vadim Yu. Kukushkin, Alexey Yu. Dubovtsev|2022|Org.Chem.Front.|9|5133|doi:10.1039/D2QO01105K
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/ccdc.csd.cc2c14h2
title: CCDC 2175843: Experimental Crystal Structure Determination

description: Related Article: Nikolay V. Shcherbakov, Gleb D. Titov, Elena I. Chikunova, Ilya P. Filippov, Nikolai V. Rostovskii, Vadim Yu. Kukushkin, Alexey Yu. Dubovtsev|2022|Org.Chem.Front.|9|5133|doi:10.1039/D2QO01105K
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/ccdc.csd.cc2c2f52
title: CCDC 2177073: Experimental Crystal Structure Determination

description: Related Article: Pawan Kumar, Jessica Flores Gonzalez, Prem Prakash Sahu, Naushad Ahmed, Joydev Acharya, Vierandra Kumar, Olivier Cador, Fabrice Pointillart, Saurabh Kumar Singh, Vadapalli Chandrasekhar|2022|Inorg.Chem.Front.|9|5072|doi:10.1039/D2QI01260J
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/ccdc.csd.cc2c2f63
title: CCDC 2177074: Experimental Crystal Structure Determination

description: Related Article: Pawan Kumar, Jessica Flores Gonzalez, Prem Prakash Sahu, Naushad Ahmed, Joydev Acharya, Vierandra Kumar, Olivier Cador, Fabrice Pointillart, Saurabh Kumar Singh, Vadapalli Chandrasekhar|2022|Inorg.Chem.Front.|9|5072|doi:10.1039/D2QI01260J
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/ccdc.csd.cc2c2whv
title: CCDC 2177517: Experimental Crystal Structure Determination

description: Related Article: Dachang Bai, Ruoshi Cheng, Jiaxin Yang, Wenjie Xu, Xingge Chen, Junbiao Chang|2022|Org.Chem.Front.|9|5285|doi:10.1039/D2QO01266A
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/ccdc.csd.cc2c3rhr
title: CCDC 2178354: Experimental Crystal Structure Determination

description: Related Article: Ze Fu, Min Guo, Yang-Rong Yao, Qingyu Meng, Yingjing Yan, Qin Wang, Yi Shen, Ning Chen|2022|Inorg.Chem.Front.|9|4913|doi:10.1039/D2QI01318E
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/ccdc.csd.cc2c463v
title: CCDC 2178776: Experimental Crystal Structure Determination

description: Related Article: Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang|2022|Inorg.Chem.Front.|9|4982|doi:10.1039/D2QI01565J
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/ccdc.csd.cc2c465x
title: CCDC 2178778: Experimental Crystal Structure Determination

description: Related Article: Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang|2022|Inorg.Chem.Front.|9|4982|doi:10.1039/D2QI01565J
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/ccdc.csd.cc2c466y
title: CCDC 2178779: Experimental Crystal Structure Determination

description: Related Article: Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang|2022|Inorg.Chem.Front.|9|4982|doi:10.1039/D2QI01565J
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/ccdc.csd.cc2c467z
title: CCDC 2178780: Experimental Crystal Structure Determination

description: Related Article: Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang|2022|Inorg.Chem.Front.|9|4982|doi:10.1039/D2QI01565J
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/ccdc.csd.cc2c4680
title: CCDC 2178781: Experimental Crystal Structure Determination

description: Related Article: Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang|2022|Inorg.Chem.Front.|9|4982|doi:10.1039/D2QI01565J
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/ccdc.csd.cc2c4691
title: CCDC 2178782: Experimental Crystal Structure Determination

description: Related Article: Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang|2022|Inorg.Chem.Front.|9|4982|doi:10.1039/D2QI01565J
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/ccdc.csd.cc2c46b2
title: CCDC 2178783: Experimental Crystal Structure Determination

description: Related Article: Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang|2022|Inorg.Chem.Front.|9|4982|doi:10.1039/D2QI01565J
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/ccdc.csd.cc2c464w
title: CCDC 2178777: Experimental Crystal Structure Determination

description: Related Article: Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang|2022|Inorg.Chem.Front.|9|4982|doi:10.1039/D2QI01565J
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/ccdc.csd.cc2c571v
title: CCDC 2179766: Experimental Crystal Structure Determination

description: Related Article: Yi-Nan Zhang, Qing-Fen Li, Bing-Ben Chen, You-Zhao Lan, Jian-Wen Cheng, Guo-Yu Yang|2022|Inorg.Chem.Front.|9|5032|doi:10.1039/D2QI01410F
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/ccdc.csd.cc2c5lrx
title: CCDC 2180129: Experimental Crystal Structure Determination

description: Related Article: Danira A. Habashy, Rabaa M. Khaled, Amr Y. Ahmed, Krzysztof Radacki, Salma K. Ahmed, Engy K. Tharwat, Hana Magdy, Alaa Zeinhom, Ahmed M. Mansour|2022|Dalton Trans.|51|14041|doi:10.1039/D2DT01938H
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/ccdc.csd.cc24trd4
title: CCDC 1990956: Experimental Crystal Structure Determination

description: Related Article: Zhenhua Zhu, Guo-Qing Jin, Jinjiang Wu, Xu Ying, Chen Zhao, Jun-Long Zhang, Jinkui Tang|2022|Inorg.Chem.Front.|9|5048|doi:10.1039/D2QI01476A
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/ccdc.csd.cc2bp4t0
title: CCDC 2165282: Experimental Crystal Structure Determination

description: Related Article: Zhenhua Zhu, Guo-Qing Jin, Jinjiang Wu, Xu Ying, Chen Zhao, Jun-Long Zhang, Jinkui Tang|2022|Inorg.Chem.Front.|9|5048|doi:10.1039/D2QI01476A
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/ccdc.csd.cc2bp4v1
title: CCDC 2165283: Experimental Crystal Structure Determination

description: Related Article: Zhenhua Zhu, Guo-Qing Jin, Jinjiang Wu, Xu Ying, Chen Zhao, Jun-Long Zhang, Jinkui Tang|2022|Inorg.Chem.Front.|9|5048|doi:10.1039/D2QI01476A
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: 10.5281/zenodo.7117602
title: Systematic assessment of prognostic molecular features across cancers

description: Data Sheets that are part of the publication titled "Systematic assessment of prognostic molecular features across cancers".
DOI: 10.5281/zenodo.7117603
title: Systematic assessment of prognostic molecular features across cancers

description: Data Sheets that are part of the publication titled "Systematic assessment of prognostic molecular features across cancers".
DOI: 10.6084/m9.figshare.3761562.v2354
title: Online Labour Index: Measuring the Online Gig Economy for Policy and Research

description: Data repository for the data underlying the Online Labour Index. See http://ilabour.oii.ox.ac.uk online-labour-index/ for details.
DOI: 10.34740/kaggle/dsv/4256399
title: US Presidential & Primary Debate Transcripts
DOI: 10.5519/qd.zsrb8g58
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (42 records)
DOI: 10.6084/m9.figshare.20471130
title: Sequencing results from TOPO cloning of tfdA gene product

description: Results of Sanger sequencing of TOPO cloning. Clones are described in Table 2 and Figure 3 of text. Files are included as .ab1 and as .ape.
DOI: 10.6084/m9.figshare.20471130.v1
title: Sequencing results from TOPO cloning of tfdA gene product

description: Results of Sanger sequencing of TOPO cloning. Clones are described in Table 2 and Figure 3 of text. Files are included as .ab1 and as .ape.
DOI: 10.6084/m9.figshare.20469723
title: Curated tfdA cds

description: Curated tfdA cds.
DOI: 10.6084/m9.figshare.20469723.v1
title: Curated tfdA cds

description: Curated tfdA cds.
DOI: 10.6084/m9.figshare.20469711
title: tfdA fasta file

description: Fasta file of tfdA hits used in phylogenetic tree creation.
DOI: 10.6084/m9.figshare.20469711.v1
title: tfdA fasta file

description: Fasta file of tfdA hits used in phylogenetic tree creation.
DOI: 10.6084/m9.figshare.20469708
title: tfdA alignment to tauD

description: Alignment of tfdA with tauD of isolates included in phylogenetic tree.
DOI: 10.6084/m9.figshare.20469708.v1
title: tfdA alignment to tauD

description: Alignment of tfdA with tauD of isolates included in phylogenetic tree.
DOI: 10.6084/m9.figshare.20469621
title: HMM for tfdA

description: HMM for tfdA identification from publicly available datasets.
DOI: 10.6084/m9.figshare.20469621.v1
title: HMM for tfdA

description: HMM for tfdA identification from publicly available datasets.
DOI: 10.5519/qd.e1agf54w
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (481 records)
DOI: 10.6084/m9.figshare.21218029
title: Finite mixtures of multivariate Wrapped Normal distributions for model based clustering of <i>p</i>-torus data

description: We consider a finite mixture model of multivariate Wrapped Normal distributions to handle non homogeneous circular data on a p−dimensional torus (p≥2). The Wrapped Normal distribution is a valid alternative to model multivariate circular or directional data on a p−torus. Parameter estimation is carried out through a nested (classification) EM algorithm, by exploiting the ideas of unwrapping circular data. The source of incompleteness in the outer E-step is represented by unobserved group memberships, whereas the source of incompleteness in the inner E-step is given by the unobserved vectors of wrapping coefficients. The finite sample behavior of the proposed method has been investigated by Monte Carlo numerical studies and real data examples. Supplemental materials for the article, including data and R codes for implementing methods, running simulations and replicate data analyses, are available online.