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Sustainability reporting in justice systems: a comparative research in two European countries
- Floriana Fusco
- Renato Civitillo
- Paolo Ricci
- Sylwia Morawska
- Katarzyna Pustułka
- Przemysław Banasik
2022 Meditari Accountancy Research
Purpose – That on accountability in public organizations is quite an old debate. Its introduction in judicial systems is, however, still viewed with some suspicion, due to its potential trade-off with independence and impartiality. Nevertheless, the need to respond to the demands for greater transparency and accountability has also pushed judicial organizations to establish a dialogue with a wide range of subjects. This study aims to explore the understanding and the current practices of sustainability reporting currently in place in judicial systems. Design/methodology/approach – The study adopts a comparative approach, conducting an online survey in two European countries (Italy and Poland). The survey was built around the research questions and literature and administered between February and March 2020. Specifically, 804 courts were involved, of which 430 are in Italy and 374 in Poland. Findings – Findings show that the current practices are still not widespread and there is still a lack of understanding of what sustainability reporting is, and therefore, of what its potential usefulness within the courts could be. Moreover, many differences between the two countries are pointed out, so it is possible to assume that the different cultural and institutional settings influence sustainability reporting practices. Finally, some interesting implications for policymakers are provided. Originality/value – Judicial organizations are still poorly investigated in the literature, despite being at the center of a wide public and political debate. Moreover, the international comparative perspective adopted constitutes a further aspect of novelty.
Sustainability reporting in the airline industry: Current literature and future research avenues
- Małgorzata Zięba
- Eljas Johansson
2022 Pełny tekst TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
Sustainability reporting (SR) allows organisations to communicate their non-financial impacts to stakeholders. It has also become a widespread business practice in aviation, a transport sector that contributes significantly to global warming. Academia has begun to examine SR in the context of airlines surprisingly late, and no comprehensive reviews of its respective developments have been made so far. Consequently, a systematic literature review was performed with an exclusive focus on airline SR to synthesise its associated scholarly research and distinguish the common concerns and gaps that have emerged from it. The analysed publications indicate that the industry has lacked a unified policy and common understanding of how to define and measure sustainability, which has led to inconsistent SR practices. This causes ambiguity between the real actions and promotional communication through which airlines may legitimise their operations. Academia and various airline stakeholders would benefit from more in-depth studies examining the stakeholder views and quality of disclosures, helping the industry improve its SR.
Sustainable Knowledge Sharing Model for IT Agile Projects
- Edward Szczerbicki
- Rodrigo Oliveira de Castro
- Cesar Sanin
2022 Pełny tekst
In order to overcome work environment challenges and remain competitive in the market, organisations must adapt. An organisation's competitiveness can be improved through knowledge sharing; however, improvement without responsibility can have a negative impact on the sociotechnical environment which people cannot fully comprehend. According to researchers, business involvement in sustainable development goals remains minimal [51]. As a result, a sustainable consciousness is crucial to improve the business. In the project profession, sustainability is a business approach that balances the environmental, social, economic, and political aspects of project-based work to fulfil the demands of stakeholders without jeopardising or overburdening the availability of natural resources for future generations [33]. This study goes a step further and proposes a theoretical design that aims to ensure sustainable development during conceptual knowledge transfer in Agile IT projects.
Sustainable Urban Mobility Plans: implementation process and indicators to evaluate effects on physical activity
- Romanika Okraszewska
- Noah Peters
- Lucia Reisch
- Marion Flechtner-Mors
- Carlijn B.M. Kamphuis
- Janine Wendt
- Daniel Scheller
- Karolina Konsur
- Joanna Żukowska
2022 Pełny tekst EUROPEAN JOURNAL OF PUBLIC HEALTH
Background: Active mobility and public transport increase physical activity (PA) levels. With varying intensity and effectiveness, European cities implement Sustainable Urban Mobility Plans (SUMPs) to spur transport-related PA. Therefore, we aim to examine drivers and barriers to SUMP implementation and assess its influence on PA across European cities. Methods: We screened policy reports to gain insights into SUMP implementation in one Danish, two German and two Polish cities. Further, we conducted semi-structured interviews with SUMP stakeholders in these cities to explore their experiences with SUMP implementation. Thematic analysis of interview transcripts was applied to identify similarities and differences across cities. To assess the effect of SUMP implementation on PA, we searched for data on indicators of transport-related PA. Results: All investigated cities are committed to sustainable mobility. Nonetheless, complex institutional structures, the dominant role of motorized traffic as well as complex regional and local policy integration hamper SUMP implementation. Danish, German and Polish cities face different contexts in terms of financing, national guidelines and the prominence of sustainability as a policy objective. Each city adopts unique indicators for monitoring the effects of SUMPs on transport-related PA. The variety of indicators and limited data availability impede a comparative evaluation across cities. Constrained by this restriction, we identified motorization rate, modal split and public transport ridership as suitable indicators. Conclusions: Local idiosyncrasies need to be accounted for when assessing the implementation of SUMPs. Nonetheless, consistent indicators and data transparency are essential for comparing the effectiveness of SUMPs and their impact on PA.
Synchronizacja wiedzy w systemach agentowych
- Mariusz Matuszek
2022
Agenty inteligentne są jednym z komponentów stosowanych w pro- jektowaniu rozproszonych inteligentnych systemów obliczeniowych. W rozdziale wskazano istotne aspekty systemów agentowych, a na- stępnie omówiono wybrane metody synchronizacji wiedzy między agentami będącymi częścią systemu agentowego. Omówiono podej- ście właściwe dla agentów zaufanych oraz jego modyfikację dla agen- tów, które mogą celowo próbować wprowadzać inne agenty w błąd.
Synergistic effects of hybrid advanced oxidation processes (AOPs) based on hydrodynamic cavitation phenomenon – A review
- Kirill Fedorov
- Kumaravel Dinesh
- Xun Sun
- Reza Darvishi
- Zhaohui Wang
- Shirish H. Sonawane
- Grzegorz Boczkaj
2022 Pełny tekst CHEMICAL ENGINEERING JOURNAL
High-performance water treatment systems based on cavitational processes have received an increasing interest of scientific community in the past few decades. Numerous studies indicated the advantageous application of hydrodynamic cavitation as an alternative, reagent-free treatment method of various pollutants in water. Both approaches were proved as an effective method to achieve mineralization of many organic contaminants as well as a disinfection method, which is able to eliminate pathogenic microorganisms. This makes cavitation-based methods a promising candidate implemented in a post-treatment stage of water treatment facilities. Nowadays, hybrid methods based on combination of cavitation with advanced oxidation processes (AOPs), possessing enhanced oxidation capacity were proposed. Compared to the individual utilization of cavitation and AOPs (e.g., O3, H2O2, Fenton’s process), hybrid processes are capable to degrade even highly persistent contaminants and shorten the operation time reducing the overall consumption of energy and oxidants. The improved performance of hybrid methods is attributed to the synergistic effect occurring between integrated technologies, which is expressed by the synergistic index. In this paper, recent reports focusing on coupling of cavitation and AOPs were reviewed to reveal major principles and mechanisms governing the synergistic effect. The review discusses the effect of process parameters (oxidant type, pH, hydraulic and ultrasonic properties, Kow) on the oxidation effectiveness. Comparative analysis was provided in order to highlight the advantages and limits laying behind the discussed methods. The analysis of the economic feasibility was performed to assess the potential applicability of hybrid techniques in large-scale wastewater treatment.
Synthesis and characterization of biopolyols through biomass liquefaction of wood shavings and their application in the preparation of polyurethane wood composites
- Adam Olszewski
- Paulina Kosmela
- Łukasz Piszczyk
2022 Pełny tekst European Journal of Wood and Wood Products (HOLZ ALS ROH-UND WERKSTOFF)
The sustainability of production systems in wood processing, wood industry, and wooden waste disposal is an important issue for European industry and society. Proper development of products based on renewable wood resources gives an opportunity to provide materials with long-term environmental, social, and economic sustainability. This study aims to establish a new way of forestry and agricultural waste materials utilization by synthesis of bio-based polyols and manufacturing of polyurethane wood composites (PU-WC). The first part of this paper describes the liquefaction of wood shavings at a temperature of 150 °C for 6 h in three different solvents—glycerol, poly (ethylene glycol) and their mixture in a 1:1 ratio. The second part deals with the synthesis of polyurethane (PU) resins containing 90% of biopolyol. Eight sets of materials with different NCO:OH ratios were obtained in a one-step method using a hydraulic press. These materials were characterized, and the material with the most promising properties was selected for polyurethane wood composites production. Composites with 40%, 50%, 60%, and 70% of wood shavings were obtained. The addition of filler caused an increase in flexural strength, Young`s modulus, hardness, and impact strength. Scanning electron microscopy (SEM) showed good adhesion between the polymer and the filler. The optimum filler content is between 50 and 60% by weight of the composite. The presented study provides a significant step toward a greener alternative for materials produced mainly from non-renewable resources.
Synthesis Attempt and Structural Studies of Novel A2CeWO6 Double Perovskites (A2+ = Ba, Ca) in and outside of Ambient Conditions
- Damian Wlodarczyk
- Mikolaj Amilusik
- Katarzyna M. Kosyl
- Maciej Chrunik
- Krystyna Lawniczak-Jablonska
- Michal Strankowski
- Marcin Zajac
- Volodymyr Tsiumra
- Aneta Grochot
- Anna Reszka
- Andrzej Suchocki
- Tomasz Giela
- Przemyslaw Iwanowski
- Michal Bockowski
- Hanka Przybylinska
2022 Pełny tekst ACS Omega
Synthesis Attempt and Structural Studies of Novel A 2 CeWO 6 Double Perovskites (A 2+ = Ba, Ca) in and outside of Ambient Conditions Damian Wlodarczyk,* Mikolaj Amilusik, Katarzyna M. Kosyl, Maciej Chrunik, Krystyna Lawniczak-Jablonska, Michal Strankowski, Marcin Zajac, Volodymyr Tsiumra, Aneta Grochot, Anna Reszka, Andrzej Suchocki, Tomasz Giela, Przemyslaw Iwanowski, Michal Bockowski, and Hanka Przybylinska Cite This: ACS Omega 2022, 7, 18382−18408 Read Online ACCESS Metrics & More Article Recommendations *sı Supporting Information ABSTRACT: This comprehensive work showcases two novel, rock-salt-type minerals in the form of amphoteric cerium−tungstate double perovskite and ilmenite powders created via a high-temperature solid-state reaction in inert gases. The presented studies have fundamental meaning and will mainly focus on a detailed synthesis description of undoped structures, researching their possible polymorphism in various conditions and hinting at some nontrivial physicochemical properties like charge transfer for upcoming optical studies after eventual doping with selectively chosen rare-earth ions.
Synthesis, crystal structure and spectroscopic characterization of new anionic iridium(III) complexes and their interaction with biological targets
- Joanna Masternak
- Agnieszka Gilewska
- Mateusz Kowalik
- Katarzyna Kazimierczuk
- Jerzy Sitkowski
- Karol Okła
- Joanna Wietrzyk
- Barbara Barszcz
2022 POLYHEDRON
The synthesis and characterisation of new anionic iridium(II) complexes (NH4)2[IrCl4(κ2N,N’-H2biim)]2 · 5H2O (1) and ((CH3)2NH2)[IrCl4(κ2N,N’-PyBIm)] · H2O (2) are presented in this article. Spectroscopic methods (1H, 13C and 15N NMR, FTIR, UV-Vis) were used to characterize these new complexes. Solid-state structural analysis (SC-XRD) of complexes 1 and 2 shows a slightly distorted octahedral geometry of Ir(III) ions, which is constructed by one chelating κ2N,N’-2,2’-biimidazole (H2biim (1)) or 2-(2’-pyridyl)benzimidazole (PyBIm (2)) and four chloride ions. In the crystal structures, the presence of organic ligands containing NH groups favours the formation of strong hydrogen bonds (X-H···Cl (X = O, N, C)), which have significant impact on the crystal structure forming 2D (1) and 3D (2) systems during the self-assembly process. Additionally, preliminary studies of the biological activity of the obtained complexes were performed. Considering the above properties, the observed stronger binding affinity of complex 1 to DNA and HSA can be interpreted in terms of changes in the number of hydrogen bonds that are potentially formed with the target molecule. Furthermore, higher reactivity towards NADH and the lower reactivity towards GSH were observed for complex 2. Both complexes showed moderate cytotoxicity against selected cancer cell lines (LoVo, MV-4-11, MCF-7) and did not show toxicity towards normal cells (BALB/3T3). The cytotoxicity of 2 may be compromised by a weaker interaction with DNA, HSA or GSH and a stronger reactivity towards NADH.
Synthesis of a state feedback controller for an averaging tank with variable filling
- Michał Kolankowski
- Robert Piotrowski
2022
In paper, a nonlinear averaging tank with variable filling is considered. The main purpose of this research work was the modelling and control system synthesis of an averaging tank. The control objectives included ensuring stability and zero steady-state error of the system and achieving settling time as short as possible, while maintaining a minimal overshoot. In order to achieve the intended purpose, firstly a mathematical model of the control plant was derived. The model was adapted to the form required to design the control system by linearization and re-duction of its dimensions, resulting in two system variants. A state feedback and output feedback with integral action control system of the averaging tank was de-signed using a linear-quadratic regulator (LQR) and optimization of weights. The developed control system was tested using Matlab environment. Finally, based on simulation results, performance of the control system in different variants and effects of optimization were assessed.
Synthesis of bimetallic Co–Pt/cellulose nanocomposites for catalytic reduction of p-nitrophenol
- Vividha K. Landge
- Vikas S. Hakke
- Manohar Kakunuri
- G. Uday B. Babu
- Grzegorz Boczkaj
- Shirish H. Sonawane
2022 Reaction Chemistry & Engineering
In this study, bimetallic nanoparticles (NPs) of Co–Pt anchored on cellulose nanofibers (CNFs) for catalytic applications were synthesized via a sonochemical approach. The electro-spinning technique was employed for the synthesis of CNFs from cellulose acetate. The thorough characterization of synthesised Co–Pt/CNF nanocomposites was performed with the help of scanning electron microscopy (SEM), Fourier transform infra-red (FT-IR) spectroscopy, field emission scanning electron microscopy (FESEM) with energy dispersive X-ray analysis (EDX), and X-ray diffraction (XRD). This method leads to the facile preparation of Co–Pt bimetallic NPs using cellulose as a support. The synthesized nanocomposites were used for the p-nitrophenol (p-NP) reduction to p-aminophenol (p-AP) with excess sodium borohydride (NaBH4) to assess their catalytic performance. The effects of various parameters on the performance of the catalyst were also investigated. The investigated parameters are catalyst loading, initial p-NP concentration and NaBH4 concentration. The extent of p-NP reduction into p-AP over Co–Pt/CNF nanocomposites with an excess of NaBH4 was examined with UV-vis spectroscopy. The p-NP reduction to p-AP over Co–Pt NPs anchored on CNFs was achieved within 98 seconds with around 100% conversion. The efficiency of the catalyst did not vary significantly up to 5 consecutive cycles. The excellent catalytic activity (Kapp = 0.028 s−1) and stability of the as-synthesized Co–Pt nanoparticles supported on CNFs make them potential catalysts for nitrophenol reduction and wastewater treatment.
Synthesis of green benzamide-decorated UiO-66-NH2 for biomedical applications
- Navid Rabiee
- Amir Mohammad Ghadiri
- Vida Alinezhad
- Anna Sedaghat
- Sepideh Ahmadi
- Yousef Fatahi
- Pooyan Makvandi
- Mohammad Saeb
- Mojtaba Bagherzadeh
- Mohsen Asadnia
- Rajender S. Varma
- Eder C. Lima
2022 CHEMOSPHERE
Metal-organic frameworks (MOFs) biocompatible systems can host enzymes/bacteria/viruses. Herein we synthesized a series of fatty acid amide hydrolase (FAAH)-decorated UiO-66-NH2 based on Citrus tangerine leaf extract for drug delivery and biosensor applications. Five chemically manipulated FAAH-like benzamides were localized on the UiO-66-NH2 surface with physical interactions. Comprehensive cellular and molecular analyses were conducted on HEK-293, HeLa, HepG2, PC12, MCF-7, and HT-29 cell lines (cytotoxicity assessment after 24 and 48 h). MTT results proved above 95 and 50% relative cell viability in the absence and presence of the drug, respectively. A complete targeted drug-releasing capability of nanocarriers was demonstrated after capping with leaf extract from Citrus tangerine, with a stimuli-responsive effect in acidic media. Targeted delivery was complete to the nucleus and cytoplasm of HT-29 cell, but merely to the cytoplasm of HeLa cell lines. Nanocarrier could be targeted for drug delivery to the cytoplasm of the HeLa cell line and to both the nucleus and cytoplasm of HT-29 cell lines. MOF-based nanocarriers proved authentic in vivo towards kidney and liver tissues with targeted cancerous cells efficiently. Besides, FAAH-like molecules revealed optical biosensor potential with high selectivity (even ˂5 nM LOD) towards ssDNA, sgRNA, and Anti-cas9 proteins.
Synthesis, Structure, and Spectroscopic Properties of Calcium Thiophenecarboxylate Polymers. Structural Comparison with Analogous Lead Complexes
- Joanna Masternak
- Katarzyna Kazimierczuk
- Bogumiła Kupcewicz
- Jakub Brzeski
- Mateusz Kowalik
2022 EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Three novel calcium coordination polymers [Ca(2tpCOO)2(2mpa)(H2O)]n (1), [Ca(3tpCOO)2(2mpa)(H2O)]n (2), and {[Ca(3tpacCOO)2(H2O)2]⋅⋅⋅H2O}n (3) (2tpCOO− or 3tpCOO− – thiophene-2- or thiophene-3-carboxylate, 3tpacCOO− – thiophene-3-acetate, 2mpa – 2-methylpropanal), were synthesised using a self-assembly method. The obtained polymers were characterised using SC-XRD, FTIR, UV-Vis DRS, thermogravimetric and luminescence analyses. The polymer fluorescence studies showed that calcium complexes can emit light of different colours ranging from violet (1) and blue (2) to green (3). The molecular structure of each polymer consists of a calcium ion at the centre of a dodecahedral coordination sphere. The crystal structure consists of one dimensional zigzag chains that form a three-dimensional network via π⋅⋅⋅π, C−H⋅⋅⋅π and O−H⋅⋅⋅O or O−H⋅⋅⋅S interactions. Additionally, a comparative structural analysis of CaCPs with lead(II) coordination polymers containing analogous linkers was performed as part of modelling studies to explore the substitution of calcium ions by lead ions in biological polymers.
S&YP + Mentors + Peace + Love = Science and Growing
- Giuseppe Buja
- Zbigniew Krzemiński
- Marek Adamowicz
- Marek Jasiński
2022 Pełny tekst IEEE Industrial Electronics Magazine
In this extraordinarily difficult time, we understand better that only peace, love, and cooperation are the keys to growing in technology for humanity. Let us learn from our mentors how they grow from their hard work and international cooperation. Thanks to Prof. Giuseppe Buja and Prof. Zbigniew Krzemiński, we have unique schools of adjustable speed drives that are helping people convert electrical to mechanical power and vice versa. Let’s learn how it was possible.
System diagnostyki oddechowej oparty na konwolucyjnych sieciach neuronowych
- Zdzisław Kowalczuk
- Michał Czubenko
- Michał Bosak
2022 Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne
Choroby układu oddechowego człowieka od zawsze były obciążeniem dla całego społeczeństwa. Sytuacja stała się szczególnie trudna po wybuchu pandemii COVID-19. Jednak nawet teraz nierzadko zdarza się, że ludzie konsultują się ze swoim lekarzem zbyt późno, już po niepożądanym rozwinięciu się choroby. W celu ochrony pacjentów przed ciężką chorobą płuc, zaleca się jak najwcześniejsze wykrycie wszelkich objawów zaburzających pracę układu oddechowego. W artykule przedstawiono wczesny prototyp urządzenia, który przypomina cyfrowy stetoskop. Przeprowadza on automatyczną analizę oddechu, poza rejestrowaniem cykli oddechowych. Dodatkowo urządzenie ma funkcję powiadamiania użytkownika (np. przez smartfon) o konieczności udania się do lekarza na bardziej szczegółowe badanie. Dźwiękowe nagranie cykli oddechu przekształcane jest na dwuwymiarową macierz za pomocą współczynników cepstrum w skali melowej (MFCC). Taka macierz jest analizowana przez sztuczną sieć neuronową. W wyniku przeprowadzonych badań stwierdzono, że najlepsze z otrzymanych rozwiązań prezentowanej sieci neuronowej osiągnęło pożądaną dokładność i wysoką precyzję.
System stabilizacji piłki na ruchomej platformie
- Michał Banach
- Robert Piotrowski
2022 Pełny tekst Pomiary Automatyka Robotyka
W ostatnich latach nastąpił znaczny rozwój i wzrost zastosowań układów regulacji nadążnej. Ich wykorzystanie przestało ograniczać się do zastosowań przemysłowych, a zaczęto je używać w aplikacjach życia codziennego. Artykuł przedstawia proces projektowania i syntezy nadążnego układu stabilizacji piłki na ruchomej platformie. Opisano część mechaniczną oraz elektroniczną platformy. Przedstawiono model matematyczny, a także opisano proces oprogramowania platformy i syntezy sterowania. Na koniec przeprowadzono testy sprawdzające.
System wynagradzania nauczycieli w Polsce – skutki dla lokalnych budżetów
- Alicja Sekuła
- Joanna Nucińska,
2022 Pełny tekst STUDIA BAS
Artykuł podejmuje problematykę systemu wynagradzania nauczycieli w Polsce. W pierwszej części przedstawiono oświatę jako zadanie publiczne polskich gmin, powiatów i województw oraz miast na prawach powiatu, które wypełniają zadania zarówno gmin, jak i powiatów. W kolejnej części omówiono kryteria (zwłaszcza dotyczące nauczycieli) podziału części oświatowej subwencji ogólnej z budżetu państwa pomiędzy jednostki samorządu terytorialnego. Następnie opisano zasady naliczania wynagrodzeń nauczycieli. W części empirycznej artykułu przedstawiono strukturę i dynamikę wydatków oświatowych na wynagrodzenia w latach 2004–2020 oraz porównano ich wysokość z oświatową częścią subwencji. Następnie analizowana jest różnica między minimalnym i średnim wynagrodzeniem nauczycieli. Ostatnia część to studium przypadku pokazujące wpływ wynagrodzeń nauczycieli na wydatki w budżecie Lublina.
Systematic comparison of a biotrickling filter and a conventional filter for the removal of a mixture of hydrophobic VOCs by Candida subhashii
- Milena Marycz
- Yadira Rodríguez
- Jacek Gębicki
- Raúl Muñoz
2022 Pełny tekst CHEMOSPHERE
This work systematically compared the potential of a conventional fungal biofilter (BF) and a fungal biotrickling filter (BTF) for the abatement of a mixture of hydrophobic volatile organic compounds (VOCs). Candida subhashii was herein used for the first time, to the best of the author's knowledge, to remove n-hexane, trichloroethylene, toluene and α-pinene under aerobic conditions. C. subhashii immobilized on polyurethane foam supported steady state removal efficiencies of n-hexane, trichloroethylene, toluene and α-pinene of 25.4 ± 0.9%, 20.5 ± 1.0%, 19.6 ± 1.5% and 25.6 ± 2.8% in the BF, and 35.7 ± 0.9%, 24.0 ± 1.6%, 44.0 ± 1.7% and 26.2 ± 1.8% in the BTF, respectively, at relatively short gas residence times (30 s). The ability of C. subhashii to biodegrade n-hexane, TCE, toluene and α-pinene was confirmed in a batch test conducted in serum bottles, where a biodegradation pattern (toluene ≈ n-hexane > α-pinene > trichloroethylene) comparable to that recorded in the BF and BTF was recorded.
Systematic Literature Review for Emotion Recognition from EEG Signals
- Paulina Leszczełowska
- Natalia Dawidowska
2022 Pełny tekst
Researchers have recently become increasingly interested in recognizing emotions from electroencephalogram (EEG) signals and many studies utilizing different approaches have been conducted in this field. For the purposes of this work, we performed a systematic literature review including over 40 articles in order to identify the best set of methods for the emotion recognition problem. Our work collects information about the most commonly used datasets, electrodes, algorithms and EEG features, as well as methods of their extraction and selection. The number of recognized emotions was also extracted from each paper. In the analyzed articles, the SEED dataset turned out to be the most frequently used. The two most prevalent groups of electrodes were frontal and parietal. Evaluated papers suggest that alpha wavelets are the most beneficial band for feature extraction in emotion recognition. FFT, STFT, and DE appear to be the most popular feature extraction methods. The most prominent algorithms for feature selection among analyzed studies were classifier-dependent wrappers, such as the GA or SVM wrapper. In terms of predicted emotions, developed models in more than half of the papers were designed to predict three emotions. The predictive algorithms that were mostly used by researchers are neural networks or vector machine-based models.
Systematic Literature Review for Emotion Recognition from EEG Signals
- Paulina Leszczełowska
- Natalia Dawidowska
2022
Researchers have recently become increasingly interested in recognizing emotions from electroencephalogram (EEG) signals and many studies utilizing different approaches have been conducted in this field. For the purposes of this work, we performed a systematic literature review including over 40 articles in order to identify the best set of methods for the emotion recognition problem. Our work collects information about the most commonly used datasets, electrodes, algorithms and EEG features, as well as methods of their extraction and selection. The number of recognized emotions was also extracted from each paper. In the analyzed articles, the SEED dataset turned out to be the most frequently used. The two most prevalent groups of electrodes were frontal and parietal. Evaluated papers suggest that alpha wavelets are the most beneficial band for feature extraction in emotion recognition. FFT, STFT, and DE appear to be the most popular feature extraction methods. The most prominent algorithms for feature selection among analyzed studies were classifier-dependent wrappers, such as the GA or SVM wrapper. In terms of predicted emotions, developed models in more than half of the papers were designed to predict three emotions. The predictive algorithms that were mostly used by researchers are neural networks or vector machine-based models.