| 2021 | Application of classification and regression tree (CRT) analysis to identify the agricultural households at risk of financial exclusion. | Agnieszka Strzelecka, Danuta Zawadzka |
| 2021 | The concept of an e-platform cooperation model in the field of 3D printing during the COVID-19 pandemic. | Roma Strulak-Wjcikiewicz, Adriana Bohdan |
| 2021 | A Deep Learning-based Surrogate for the XRF Approximation of Elemental Composition within Archaeological Artefacts before Restoration. | Ruxandra Stoean, Leonard Ionescu, Catalin Stoean, Marinela Boicea, Miguel A. Atencia Ruiz, Gonzalo Joya |
| 2021 | The use of information systems to support the management of reverse logistics processes. | Marta Starostka-Patyk |
| 2021 | Weighting factor for attributes based on reduct cardinality. | Urszula Stanczyk |
| 2021 | Multi-criteria analysis of urban policy for sustainable development decision-making: A case study for Warsaw city, Poland. | Paulina Stachura, Karolina Kuligowska |
| 2021 | Concepts as decision functions. The issue of epistemic opacity of conceptual representations in artificial computing systems. | Pawel Stacewicz, Hajo Greif |
| 2021 | Analysis of pharmacy drug consumption following extreme weather conditions. | Maria Spichkova, Milan Simic |
| 2021 | The importance of certification in project management in the labor market. | Hanna Soroka-Potrzebna |
| 2021 | Wearable Heat Stroke Detection System in IoT-based Environment. | Teo Wil Son, Dzati Athiar Ramli, Azniza Abd Aziz |
| 2021 | Applications of the Internet in customer value management processes in Poland in the light of the results of quantitative research. | Magdalena Sobocinska, Krystyna Mazurek-Lopacinska |
| 2021 | Application of the Mental Toughness Questionnaire in business practice: case study based on post-pandemic experiences. | Malgorzata Smolska |
| 2021 | Big Data as a tool helpful in communication management. | Agnieszka Smalec |
| 2021 | Planning an experiment in a virtual environment reality as a place of research on human behaviour using methods of neuroscience measurement - bibliometric analysis and methodological approach. | Kamila Slupinska, Jaroslaw Duda, Konrad Biercewicz |
| 2021 | Face emotional responses correlate with chaotic dynamics of eye movements. | Albert Sledzianowski, Krzysztof Urbanowicz, Wojciech Glac, Renata Slota, Maria Wojtowicz, Monika Nowak, Andrzej W. Przybyszewski |
| 2021 | On the revealing the emotional valence in communication by text. | Velina Slavova |
| 2021 | Call Admission Control Optimization in 5G in Downlink Single-Cell MISO System. | Ahmed Slalmi, Hasna Chaibi, Rachid Saadane, Abdellah Chehri |
| 2021 | Typology of virtual brand communities' members. | Dagna Siuda |
| 2021 | A new Query Reformulation Approach using Web Result Clustering and User Profile. | Abd El Heq Silem, Hajer Taktak, Faouzi Moussa |
| 2021 | Factors stimulating and destimulating the level of tourism and recreational entrepreneurship among students. | Marta Sidorkiewicz |
| 2021 | Characterizing Academic Help-seeking Moods for Enrollment Performance of Institutional Online Student. | Hongwei Shi, Yang Li, Daocheng Hong |
| 2021 | How strongly do rank similarity coefficients differ used in decision making problems? | Andrii Shekhovtsov |
| 2021 | Application of access control model for confidential data. | Lumin Shan, Huan Zhou, Daocheng Hong, Qiwen Dong, Ye Wang, Shubing Song |
| 2021 | Integrating Experience-Based Knowledge Representation and Machine Learning for Efficient Virtual Engineering Object Performance. | Syed Imran Shafiq, Cesar Sann, Edward Szczerbicki |
| 2021 | On an adaptive algorithm for detecting echo signals reflected from low-flying objects against the background of interference in the urban environment. | Mikhail Sergeev, Anton Sentsov, Vadim A. Nenashev, Sergey Ivanov |