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The novelty of the introduced notion lies in the selection of the best alternative among the available multiple favorable situations, where the possibility of its range is in the extended unit circle of the complex plane. We study the relationship between the CHFS and the complex intuitionistic fuzzy set (CIFS), along with validation of the obtained results. On the basis of the proposed notion, various properties, operations, and identities have been established with their necessary proof. The applications of CHFS in the process of filtering the signals for obtaining the reference signal using the necessary Fourier cosine transform or inverse Fourier cosine transform and identifying the maximum number of sunspots in a particular interval of solar activity have been suitably discussed with illustrative numerical examples. Some advantages of incorporating the proposed notion have also been tabulated for better understanding.<\/jats:p>","DOI":"10.3390\/sym15030595","type":"journal-article","created":{"date-parts":[[2023,2,27]],"date-time":"2023-02-27T04:05:40Z","timestamp":1677470740000},"page":"595","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["On Cohesive Fuzzy Sets, Operations and Properties with Applications in Electromagnetic Signals and Solar Activities"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3008-8782","authenticated-orcid":false,"given":"Xingsi","family":"Xue","sequence":"first","affiliation":[{"name":"Fujian Provincial Key Laboratory of Big Data Mining and Applications, Fujian University of Technology, Fuzhou 350118, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mahima","family":"Poonia","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Jaypee University of Information Technology, Solan 173234, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ghaida Muttashar","family":"Abdulsahib","sequence":"additional","affiliation":[{"name":"Department of Computer Engineering, University of Technology, Baghdad 10066, Iraq"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9312-0866","authenticated-orcid":false,"given":"Rakesh Kumar","family":"Bajaj","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Jaypee University of Information Technology, Solan 173234, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4750-8384","authenticated-orcid":false,"given":"Osamah Ibrahim","family":"Khalaf","sequence":"additional","affiliation":[{"name":"Department of Solar, Al-Nahrain Research Center for Renewable Energy, Al-Nahrain University, Baghdad 64040, Iraq"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0665-0138","authenticated-orcid":false,"given":"Himanshu","family":"Dhumras","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Jaypee University of Information Technology, Solan 173234, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Varun","family":"Shukla","sequence":"additional","affiliation":[{"name":"Department of Eelectronics & Communication Engineering, Pranveer Singh Institute of Technology, Kanpur 209305, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"338","DOI":"10.1016\/S0019-9958(65)90241-X","article-title":"Fuzzy sets","volume":"8","author":"Zadeh","year":"1965","journal-title":"Inf. Control."},{"key":"ref_2","first-page":"51","article-title":"Representation of complex grades of membership and non-membership for a complex intuitionistic fuzzy sets","volume":"23","author":"Allaoui","year":"2017","journal-title":"Notes Intuit. Fuzzy Sets."},{"key":"ref_3","unstructured":"Li, H., and Yen, V.C. (1995). Fuzzy Sets and Fuzzy Decision-Making, CRC Press."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/j.fss.2016.02.011","article-title":"The problem of collective identity in a fuzzy environment","volume":"315","author":"Alcantud","year":"2017","journal-title":"Fuzzy Sets Syst."},{"key":"ref_5","first-page":"344","article-title":"Logic connectives of complex fuzzy sets","volume":"21","author":"Ngan","year":"2018","journal-title":"Rom. J. Inf. Sci. Technol."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"285","DOI":"10.1002\/int.20454","article-title":"A new interpretation of complex membership grade","volume":"26","author":"Tamir","year":"2011","journal-title":"Int. J. Intell. Syst."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.fss.2017.01.010","article-title":"A systematic review of complex fuzzy sets and logic","volume":"338","author":"Yazdanbakhsh","year":"2018","journal-title":"Fuzzy Sets Syst."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/j.chaos.2017.01.019","article-title":"Complex vague set based concept lattice","volume":"96","author":"Singh","year":"2017","journal-title":"Chaos Solitons Fractals"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2302","DOI":"10.1109\/TFUZZ.2019.2933787","article-title":"ADONiS-Adaptive Online Nonsingleton Fuzzy Logic Systems","volume":"28","author":"Pekaslan","year":"2020","journal-title":"IEEE Trans. Fuzzy Syst."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Xue, X., Makota, C., Khalaf, O.I., Jayabalan, J., Samui, P., and Abdulsahib, G.M. (2023). Machine Learning Approach for Prediction of Lateral Confinement Coefficient of CFRP-Wrapped RC Columns. Symmetry, 15.","DOI":"10.3390\/sym15020545"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Xue, X., Shanmugam, R., Palanisamy, S., Khalaf, O.I., Selvaraj, D., and Abdulsahib, G.M. (2023). A Hybrid Cross Layer with Harris-Hawk-Optimization-Based Efficient Routing for Wireless Sensor Networks. Symmetry, 15.","DOI":"10.3390\/sym15020438"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Xue, X., Sai Kumar, A., Khalaf, O.I., Somineni, R.P., Abdulsahib, G.M., Sujith, A., Dhanuja, T., and Vinay, M.V.S. (2023). Design and Performance Analysis of 32 \u00d7 32 Memory Array SRAM for Low-Power Applications. Electronics, 12.","DOI":"10.3390\/electronics12040834"},{"key":"ref_13","first-page":"6755","article-title":"Fault coverage-based test case prioritization and selection using african buffalo optimization","volume":"74","author":"Singhal","year":"2023","journal-title":"Comput. Mater. Contin."},{"key":"ref_14","first-page":"5527","article-title":"Multi-tier sentiment analysis of social media text using supervised machine learning","volume":"74","author":"Rahman","year":"2023","journal-title":"Comput. Mater. Contin."},{"key":"ref_15","first-page":"1","article-title":"Classification and comparison of ad hoc networks: A review","volume":"24","author":"Aggarwal","year":"2022","journal-title":"Egypt. Inform. J."},{"key":"ref_16","first-page":"27","article-title":"Symmetric implicational algorithm derived from intuitionistic fuzzy entropy","volume":"19","author":"Tang","year":"2022","journal-title":"Iran. J. Fuzzy Syst."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1016\/S0165-0114(86)80034-3","article-title":"Intuitionistic fuzzy sets","volume":"20","author":"Atanassov","year":"1986","journal-title":"Fuzzy Sets Syst."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Dhumras, H., and Bajaj, R.K. (2022). On prioritization of hydrogen fuel cell technology utilizing bi-parametric picture fuzzy information measures in VIKOR and TOPSIS decision-making approaches. Int. J. Hydrogen Energy.","DOI":"10.1016\/j.ijhydene.2022.09.093"},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Singh, A., Dhumras, H., and Bajaj, R.K. (2022, January 26\u201327). On Green Supplier Selection Problem Utilizing Modified TOPSIS with R-norm Picture Fuzzy Discriminant Measure. Proceedings of the 5th International Conference on Multimedia, Signal Processing and Communication Technologies (IMPACT), Aligarh, India.","DOI":"10.1109\/IMPACT55510.2022.10029080"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Dhumras, H., and Bajaj, R.K. (2022). On Renewable Energy Source Selection Methodologies Utilizing Picture Fuzzy Hypersoft Information with Choice and Value Matrices. Sci. Iran.","DOI":"10.24200\/sci.2022.60529.6847"},{"key":"ref_21","first-page":"623","article-title":"On Assembly Robotic Design Evaluation Problem Using Enhanced Quality Function Deployment with q-Rung Orthopair Fuzzy Set Theoretic Environment","volume":"39","author":"Dhumras","year":"2023","journal-title":"J. Inf. Sci. Eng."},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Bansal, P., Dhumras, H., and Bajaj, R.K. (2022, January 26\u201327). On T-Spherical Fuzzy Hypersoft Sets and Their Aggregation Operators with Application in Soft Computing. Proceedings of the 5th International Conference on Multimedia, Signal Processing and Communication Technologies (IMPACT), Aligarh, India.","DOI":"10.1109\/IMPACT55510.2022.10029247"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Aggarwal, S., Dhumras, H., and Bajaj, R.K. (2022, January 26\u201327). On Banking Site Selection Decision Making Problem Utilizing Similarity Measures of Picture Fuzzy Soft Sets. Proceedings of the 5th International Conference on Multimedia, Signal Processing and Communication Technologies (IMPACT), Aligarh, India.","DOI":"10.1109\/IMPACT55510.2022.10029288"},{"key":"ref_24","first-page":"713","article-title":"On Solution of Interval Valued Intuitionistic Fuzzy Assignment Problem Using Similarity Measure and Score Function","volume":"8","author":"Kumar","year":"2014","journal-title":"Int. J. Math. Comput. Phys. Electr. Comput. Eng."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Bajaj, R.K., Kumar, T., and Gupta, N. (2012, January 9\u201311). R-norm Intuitionistic Fuzzy Information Measures and Its Computational Applications. Proceedings of the Eco-friendly Computing and Communication Systems: International Conference, ICECCS, Kochi, India.","DOI":"10.1007\/978-3-642-32112-2_43"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1109\/91.995119","article-title":"Complex fuzzy sets","volume":"10","author":"Ramot","year":"2002","journal-title":"IEEE Trans. Fuzzy Syst."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"2038724","DOI":"10.1155\/2020\/2038724","article-title":"On Structural Properties of \u03be-Complex Fuzzy Sets and Their Applications","volume":"2020","author":"Imtiaz","year":"2020","journal-title":"Complexity"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"4425","DOI":"10.3233\/JIFS-201261","article-title":"Image development in the framework of \u03be-complex fuzzy morphisms","volume":"40","author":"Imtiaz","year":"2021","journal-title":"J. Intell. Fuzzy Syst."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Sathiyaseelan, N., Vijayabalaji, S., and Alcantud, J.C.R. (2023). Symmetric Matrices on Inverse Soft Expert Sets and Their Applications. Symmetry, 15.","DOI":"10.3390\/sym15020313"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Subahi, A.F., Khalaf, O.I., Alotaibi, Y., Natarajan, R., Mahadev, N., and Ramesh, T. (2022). Modified Self-Adaptive Bayesian Algorithm for Smart Heart Disease Prediction in IoT System. Sustainability, 14.","DOI":"10.3390\/su142114208"},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Khalaf, O.I., Natarajan, R., Mahadev, N., Christodoss, P.R., Nainan, T., Romero, C.A.T., and Abdulsahib, G.M. (2022). Blinder Oaxaca and Wilk Neutrosophic Fuzzy Set-based IoT Sensor Communication for Remote Healthcare Analysis. IEEE Access, 99.","DOI":"10.1109\/ACCESS.2022.3207751"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Goswami, S., Sagar, A.K., Nand, P., and Khalaf, O.I. (2022, January 20\u201322). Time Series Analysis Using Stacked LSTM Model for Indian Stock Market. Proceedings of the IEEE IAS Global Conference on Emerging Technologies (GlobConET), Arad, Romania.","DOI":"10.1109\/GlobConET53749.2022.9872386"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1177\/15501329221117118","article-title":"A depth-controlled and energy-efficient routing protocol for underwater wireless sensor networks","volume":"18","author":"Lilhore","year":"2022","journal-title":"Int. J. Distrib. Sens. Netw."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"635","DOI":"10.1109\/TII.2022.3200067","article-title":"Interaction-Enhanced and Time-Aware Graph Convolutional Network for Successive Point-of-Interest Recommendation in Travelling Enterprises","volume":"19","author":"Liu","year":"2022","journal-title":"IEEE Trans. Ind. Informatics"},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"S, D., Palanisamy, S., Hajjej, F., Khalaf, O.I., Abdulsahib, G.M., and S, R. (2022). Discrete Fourier Transform with Denoise Model Based Least Square Wiener Channel Estimator for Channel Estimation in MIMO-OFDM. Entropy, 24.","DOI":"10.3390\/e24111601"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"298","DOI":"10.1504\/IJCAT.2022.124955","article-title":"Design of QoS on data collection in wireless sensor network for automation process","volume":"68","author":"Hassan","year":"2022","journal-title":"Int. J. Comput. Appl. Technol."},{"key":"ref_37","first-page":"529","article-title":"Hesitant fuzzy sets","volume":"25","author":"Torra","year":"2010","journal-title":"Int. J. Intell. Syst."},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Atanassov, K.T. (2012). On Intuitionistic Fuzzy Sets Theory, Springer.","DOI":"10.1007\/978-3-642-29127-2"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1016\/0165-0114(89)90215-7","article-title":"More on intuitionistic fuzzy sets","volume":"33","author":"Atanassov","year":"1989","journal-title":"Fuzzy Sets Syst."},{"key":"ref_40","doi-asserted-by":"crossref","unstructured":"Yager, R.R. (2013, January 24\u201328). Pythagorean fuzzy subsets. Proceedings of the 2013 Joint IFSA World Congress and NAFIPS Annual Meeting (IFSA\/NAFIPS), Edmonton, AB, Canada.","DOI":"10.1109\/IFSA-NAFIPS.2013.6608375"},{"key":"ref_41","unstructured":"Atanassov, K.T., and Vassilev, P. (2018). Advances in Data Analysis with Computational Intelligence Methods, Springer."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/S0898-1221(99)00056-5","article-title":"Soft set theory-first results","volume":"37","author":"Molodtsov","year":"1999","journal-title":"Comput. Math. Appl."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"3308","DOI":"10.1016\/j.camwa.2010.03.015","article-title":"Soft matrix theory and its decision making","volume":"59","author":"Cagman","year":"2010","journal-title":"Comput. Math. Appl."},{"key":"ref_44","unstructured":"Yang, Y., and Ji, C. (2011). International Conference on Artificial Intelligence and Computational Intelligence, Springer."},{"key":"ref_45","first-page":"412","article-title":"Some results of intuitionistic fuzzy soft matrix theory","volume":"3","author":"Chetia","year":"2012","journal-title":"Adv. Appl. Sci. Res."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"7889","DOI":"10.1007\/s00500-018-3419-z","article-title":"On Pythagorean fuzzy soft matrices, operations and their applications in decision making and medical diagnosis","volume":"23","author":"Guleria","year":"2019","journal-title":"Soft Comput."},{"key":"ref_47","first-page":"589","article-title":"Fuzzy soft set theory","volume":"3","author":"Maji","year":"2001","journal-title":"J. Fuzzy Math."},{"key":"ref_48","first-page":"677","article-title":"Intuitionistic fuzzy soft sets","volume":"9","author":"Maji","year":"2001","journal-title":"J. Fuzzy Math."},{"key":"ref_49","first-page":"409","article-title":"Picture fuzzy sets","volume":"30","author":"Cuong","year":"2014","journal-title":"J. Comput. Sci. Cybern."},{"key":"ref_50","first-page":"1014","article-title":"T-spherical Fuzzy Soft Sets and its Aggregation Operators with Application in Decision Making","volume":"28","author":"Guleria","year":"2019","journal-title":"Sci. Iran."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"2128","DOI":"10.1016\/j.ins.2011.01.028","article-title":"Distance and similarity measures for hesitant fuzzy sets","volume":"181","author":"Xu","year":"2011","journal-title":"Inf. Sci."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s42524-019-0017-4","article-title":"An overview on the applications of the hesitant fuzzy sets in group decision-making: Theory, support and methods","volume":"6","author":"Xu","year":"2019","journal-title":"Front. Eng. Manag."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"286","DOI":"10.1016\/j.knosys.2018.06.024","article-title":"Normal wiggly hesitant fuzzy sets and their application to environmental quality evaluation","volume":"159","author":"Ren","year":"2018","journal-title":"Knowl.-Based Syst."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"879629","DOI":"10.1155\/2012\/879629","article-title":"Dual hesitant fuzzy sets","volume":"2012","author":"Zhu","year":"2012","journal-title":"J. Appl. Math."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"8847","DOI":"10.1007\/s00521-019-04362-y","article-title":"A robust correlation coefficient for probabilistic dual hesitant fuzzy sets and its applications","volume":"32","author":"Garg","year":"2019","journal-title":"Neural Comput. Appl."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"464","DOI":"10.1063\/1.4757515","article-title":"Complex intuitionistic fuzzy sets","volume":"1482","author":"Alkouri","year":"2012","journal-title":"AIP Conf. Proc. Am. Inst. Phys."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"496","DOI":"10.1007\/s10489-018-1290-3","article-title":"A robust correlation coefficient measure of complex intuitionistic fuzzy sets and their applications in decision-making","volume":"49","author":"Garg","year":"2019","journal-title":"Appl. Intell."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"2319","DOI":"10.1002\/int.22127","article-title":"Some results on information measures for complex intuitionistic fuzzy sets","volume":"34","author":"Garg","year":"2019","journal-title":"Int. J. Intell. Syst."},{"key":"ref_59","doi-asserted-by":"crossref","unstructured":"Yaqoob, N., Gulistan, M., Kadry, M., and Wahab, H.A. (2019). Complex intuitionistic fuzzy graphs with application in cellular network provider companies. Mathematics, 7.","DOI":"10.3390\/math7010035"},{"key":"ref_60","doi-asserted-by":"crossref","unstructured":"Luqman, A., Akram, M., Al-Kenani, A.N., and Alcantud, J.C.R. (2019). A Study on Hypergraph Representations of Complex Fuzzy Information. Symmetry, 11.","DOI":"10.3390\/sym11111381"},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"226","DOI":"10.1007\/s40314-020-01251-2","article-title":"Decision-making model under complex picture fuzzy Hamacher aggregation operators","volume":"39","author":"Akram","year":"2020","journal-title":"Comput. Appl. Math."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"13657","DOI":"10.1007\/s00500-021-06108-2","article-title":"Complex picture fuzzy N-soft sets and their decision-making algorithm","volume":"25","author":"Mahmood","year":"2021","journal-title":"Soft Comput."},{"key":"ref_63","first-page":"1","article-title":"Complex fuzzy sets with applications in signals","volume":"38","author":"Xueling","year":"2019","journal-title":"Comput. Appl. Math."},{"key":"ref_64","doi-asserted-by":"crossref","unstructured":"Yazdanbaksh, O., Krahn, A., and Dick, S. (2013, January 24\u201328). Predicting solar power output using complex fuzzy logic. Proceedings of the 2013 Joint IFSA World Congress and NAFIPS Annual Meeting (IFSA\/NAFIPS), Edmonton, AB, Canada.","DOI":"10.1109\/IFSA-NAFIPS.2013.6608579"},{"key":"ref_65","unstructured":"(2022, December 05). Sunspots and the Solar Cycle [Online], Available online: https:\/\/solarscience.msfc.nasa.gov\/SunspotCycle.shtml."}],"container-title":["Symmetry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-8994\/15\/3\/595\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T18:42:34Z","timestamp":1760121754000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-8994\/15\/3\/595"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,2,25]]},"references-count":65,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2023,3]]}},"alternative-id":["sym15030595"],"URL":"https:\/\/doi.org\/10.3390\/sym15030595","relation":{},"ISSN":["2073-8994"],"issn-type":[{"value":"2073-8994","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,2,25]]}}}