Definition Of Characteristics Research Articles

Stock market extreme risk prediction based on machine learning: Evidence from the American market

Extreme risk in stock markets poses significant challenges, necessitating greater attention in related research. This study presents an effective machine-learning model for forecasting extreme risks in the American stock market. Specifically, to address the issues of imbalanced data distribution and concept drift, we introduced class weight and time weight parameters to enhance the AdaBoost algorithm. Moreover, we improved the active learning framework by transitioning from manual to algorithmic annotation. Experiments on the S&P 500 index from 2005 to 2022 revealed that our optimal model significantly enhanced the classification performance, particularly for risk instances. Additionally, we validated the efficacy of customized sample weight values, the significance of the density-weight strategy, and the robustness of the overall framework under different risk definition criteria and feature lag periods. Our research is significant for the adoption of appropriate macroeconomic policies to mitigate downside risks and provides a valuable tool for achieving financial stability.

Time is of the essence: A general framework for uncovering temporal structures of communities.

Ecological communities are inherently dynamic: species constantly turn over within years, months, weeks or even days. These temporal shifts in community composition determine essential aspects of species interactions and how energy, nutrients, information, diseases and perturbations 'flow' through systems. Yet, our understanding of community structure has relied heavily on static analyses not designed to capture critical features of this dynamic temporal dimension of communities. Here, we propose a conceptual and methodological framework for quantifying and analysing this temporal dimension. Conceptually, we split the temporal structure into two definitive features, sequence and duration, and review how they are linked to key concepts in ecology. We then outline how we can capture these definitive features using perspectives and tools from temporal graph theory. We demonstrate how we can easily integrate ongoing research on phenology into this framework and highlight what new opportunities arise from this approach to answer fundamental questions in community ecology. As climate change reshuffles ecological communities worldwide, quantifying the temporal organization of communities is imperative to resolve the fundamental processes that shape natural ecosystems and predict how these systems may change in the future.

Specific features of the regulatory definition of incentive criminal sanctions for criminal offences and the ways to improve their application

The subject matter of the article is incentive sanctions as a type of criminal law sanctions in the context of their application when a person commits such type of criminal offences as criminal misdemeanours. The study of such sanctions is aimed at identifying the problems of their regulatory definition and finding possible ways to improve these sanctions. Given that there is a significant number of studies on incentive sanctions of the General Part of the Criminal Code of Ukraine, the article focuses on the sanctions of the Special Part of the Criminal Code of Ukraine which are incentive sanctions and may be applied for criminal offences. In researching this issue, the methods of analysis and synthesis, the dialectical method and the method of comparison were mainly used. The first study of the problems of regulatory certainty of incentive sanctions for criminal offences has been carried out, and the shortcomings of the regulatory definition of certain sanctions have been identified and the problems of their application have been clarified, taking into account the content of the dispositions of such articles. Among the incentive sanctions of the Special Part of the Criminal Code of Ukraine, the sanctions contained in Part 3 of Article 175, Part 4 of Article 309, Part 4 of Article 311, Part 6 of Article 361 of the Criminal Code of Ukraine are considered. In the course of the study, the article reveals the shortcomings of the statutory definition of such sanctions with due regard to the dispositions of certain articles. Based on this, and taking into account the doctrinal approaches, the study provides substantiated proposals for improving the regulatory certainty of incentive criminal sanctions under these articles. The suggested proposals may be considered in the course of rule-making and, if enshrined in the CC of Ukraine, will contribute to more efficient application of incentive provisions and achievement of the purpose of their application. In this regard, the problems of regulatory definition of incentive sanctions under Part 3 of Article 175, Part 4 of Article 309, Part 4 of Article 311, Part 6 of Article 361 of the CC of Ukraine are analysed and reasonable proposals for their improvement are made with due regard to the purpose of application of such sanctions.

COMMENTARY AS A TYPE OF COMMUNICATIVE ACTION

The present paper deals with the problem of a commentary as a secondary communicative action. The aim of the article is to describe several discourse types of commentary (a commentary in everyday oral communication, a scientific discourse, a commentary in a legal communication, a commentary in a religious discourse) and define its current discursive features. As a result of the study, it was found that a commentary in everyday oral communication mostly expresses specification of the previous phrase and personal standpoint of interlocutors. In a scientific discourse a commentary is used to ground the author’s approach to the problem and to express a critical evaluation of the problems, usually in a regardful mode. A commentary in a legal communication is given to define and specify certain relevant notions in the sphere of law. A commentary in a religious discourse is used to interpret the basic sentences. A network discourse commentary expresses a personal evaluative attitude to the information published, and responses to it make a polemic dialogue. The scientific novelty of the study is that the definite features of the four types of the commentary are revealed. The study of commentary contributes to the development of theory of speech genres, theory of text and discourse, and pragmalinguistics.

Is the Library a Leisure Centre or a “Humanistic Stronghold of the Nation”?

The Russian Library Association (RLA) Manifesto “Library — a Humanistic Stronghold of the Nation” was adopted at the 24th RLA Annual Conference in Tula (2019). It was planned that the main ideas of this document would be included in the “Concept of the Development of Librarianship in Russia”, becoming the basis for analyzing the ways of development and transformation of the country’s libraries. Of all official documents on librarianship, the clause that “humanism is the world outlook basis of the library profession” is present only in the Code of Ethics of the Russian librarian. This is not enough. The idea of humanism as the basis of the library profession should be concretized in all documents of the branch and included in library textbooks.In Russia, the printed book firmly holds its position, and readers expect from libraries full-fledged collections. The issue of improving bibliographic literacy of users is acute.At the same time, librarian V.K. Stepanov has been trying to replace the essence of the library for the second decade. He proposes to consider it a social institution, deprived of the fund and readers, and to put unrelated tasks before librarians and material and technical base. He sees the purpose of the library in providing the cognitive and creative activity of the community served through the organization of intellectual interaction, the implementation of educational and leisure programmes, the provision of public use of the necessary space, hardware and software tools and access to information sources. From the scientific point of view, this postulate is far from the requirements of logic to the distinctive features of a scientific definition. In numerous articles V.K. Stepanov uses the same arguments, refers to the same facts, far from clarifying the actual situation of the country’s libraries. All of V.K. Stepanov’s theses have long been rejected by the library community.

Исследование кинетики формообразования деталей сферического подшипника скольжения из коррозионно-стойких сталей, полученных объемной штамповкой пористых заготовок

Introduction. Spherical powder sliding bearings are widely used in various branches of mechanical engineering. Therefore, the development of a promising method of production of spherical sliding bearing parts from powders of corrosion-resistant steels with specified properties is an urgent task. Purpose of work: is to study the kinetics of forming during cold die forging of spherical sliding bearing parts from stainless steel powder blanks, and to assess the effect of the chemical composition of lubricants and the design of the pressing tool on the structure and properties of the bearing outer ring. Materials from sprayed powders of stainless chromium-nickel steels obtained by cold die forging of sintered blanks coated with lubricants are studied in the work. The following research methods were used: mechanical tensile testing, metallographic studies and cold die forging process simulation. Results and its discussion. It is revealed that the resistance and work of deformation, as well as the kinetics of forming of the outer ring of the spherical sliding bearing are influenced by chemical composition of powders and lubricants, microstructure and mechanical properties of the blank material, configurations of the end surfaces of punches. The top and bottom edges of the outer bearing are most intensively sealed when the punch faces are made with a chamfer angle of 30–40 degrees. With an increase in the relative strain degree by height up to 0.30–0.35 its residual porosity amounted to 0.5–2.0 %. The features of definition of strain state and calculation of strain energy in the implementation of the offered method and the choice of technological parameters of the cold die forging process of sliding bearings parts are shown. A simple method for calculating and experimentally determining the coefficient of contact friction in the process of cold die forging of porous stainless steel blanks is developed, which allows to establish the effect of lubricant composition on the strain resistance at different values of the degree of radial deformation and to develop optimal methods of cold die forging of porous blanks in the production of parts of different complexity.

Melorheostosis (Leri's Disease): A Review.

Melorheostosis is a noncancerous bone disease characterized by abnormal bone and soft tissue growth. Despite being identified almost a century ago, there are still many unknown aspects surrounding this condition. It can often be an incidental discovery, with patients experiencing associated pain and deformities. Diagnosis typically relies on X-rays, although not all cases exhibit the classic candle wax appearance. A new imaging sign known as the "dumpling on a plate sign" has been proposed for flat bones for both MRI and CT scans. A biopsy may be necessary in cases of uncertainty, as there is not a definitive histological feature. It is not uncommon for melorheostosis to be linked with other conditions, and a collaborative approach involving a multidisciplinary team should be considered. This condition should be considered in the differential diagnosis of sclerotic bone conditions. Management is generally aimed at symptom relief, either through conservative measures or surgical intervention.

Понятие территории с особым статусом для целей налогово-правового регулирования

The article aims to explore the concept of territories with special status for tax and legal regulation purposes, focusing on their definition, types, and common features. It examines the methodologies used to identify and classify these territories and provides insights into their role in achieving strategic state objectives. Currently, there is no legislatively fixed general concept for these territories, nor are there theoretical developments elucidating this topic through various types of territories with special status, including their taxation aspects, which would allow for a universal approach to legal regulation in this sphere. The aim of this article is to define the content and types of territories with special status applicable for tax and legal regulation purposes. The research methodology includes deductive, inductive, comparative, and formal-legal methods. The author formulates the definition of territories with special status by identifying the characteristics of territories possessing a special legal regime of operation most commonly associated with the examined concept by scientists. Additionally, various types of other territories fitting this definition are determined. The author comes to the conclusion that territories with special status are diverse, created for different directions of state policy. However, they also share many common features, allowing for the formulation of a universal definition of territories with special status, including for tax and legal regulation purposes, and subsequently identifying types of territories falling under this definition.

ANALYSIS OF THE PROSPECTS OF APPLICATION OF NATURAL GAS LEAK DETECTION METHODS TO INCREASE THE EFFICIENCY OF ATMOSPHERIC AIR MONITORING AT HTS FACILITIES

The activities of the oil and gas industry enterprises, in particular the objects of gas transportation systems (GTS), are accompanied by a significant anthropogenic impact on the environment. The atmospheric air itself is significantly affected, since many technological processes are accompanied by emissions of natural gas (organized, unorganized and emergency) and, as a result, a significant amount of volatile substances, many of which are dangerous and harmful, enter the atmosphere. There is a wide range of methods for detecting gas leaks from elements of gas transportation systems. Ways of classifying methods directly depend on the features that form the basis of their distribution. However, the insufficient definition of the classification features, their "one-sidedness" do not allow a full assessment of the shortcomings and advantages of certain methods and means, and, therefore, the possibility of their application to increase the effectiveness of atmospheric air monitoring at HTS facilities in order to ensure environmental safety. The main tasks solved in this article are the formulation of the optimal classification of existing methods of controlling the presence of gas leaks in terms of applicability in environmental monitoring systems of atmospheric air; analysis of their advantages and disadvantages; substantiation of the expediency and perspective of using these means and methods to ensure constant monitoring of the state of atmospheric air at GTS facilities. A classification of methods and means of control is proposed based on the level of application of technical means, according to which all methods are divided into organoleptic, hardware and computational (software-mathematical). According to the results of the analysis of the data of the groups, it was determined that, from the point of view of the prospects of application in the atmospheric air quality monitoring systems at the GTS facilities, hardware means, namely gas analyzers, have the most advantages.

An overview of the changing environment of communities for the innovation of smart and sustainable products in SMEs

With a focus on servitization and sustainability, the rise of Sustainable and Smart Products (SSP) provides a fresh approach to creating innovative products. When it comes to innovation for sustainability in this setting, businesses have significant challenges as SSPs become more complex. The adoption of ecosystem-based co-innovation in lieu of conventional organization-based methods of innovation strategy is thus imperative. Through the effective sharing of resources and expertise across organizations, innovation ecosystems provide a feasible paradigm for augmenting SSP innovation. It is remarkable that despite independent examinations into both SSP and innovation ecosystems, their confluence has yet to be thoroughly examined. To explain the dynamics of ecosystem-based SSP innovation and improve innovation performance and sustainability outcomes, this study aims to close this gap by undertaking extensive research on SSP Innovation Ecosystems (SSPIE). Examining SSPIE's history, definition, and salient features, the article clarifies what makes it stand out in the rapidly changing market for smart and sustainable goods. This study contributes substantially to the rapidly developing subject of SSPIE by identifying current research gaps and providing insightful advice on addressing the difficulties involved in SSP innovation.

Single stage management of suspected gallbladder cancer guided by intraoperative frozen section analysis: A retrospective cohort study.

The management of radiologically suspected gallbladder cancers (GBC) that lack definitive radiological features usually involves performing a first-stage routine laparoscopic cholecystectomy, followed by an open second-stage liver resection (segments IVB and V) and hilar lymphadenectomy (extended cholecystectomy) if subsequent formal histology confirms a malignancy. Performing a cholecystectomy with an intraoperative frozen section to guide the need for conversion to an extended cholecystectomy as a single-stage procedure has multiple benefits compared to a two-stage approach. However, the safety and efficacy of this approach have not yet been evaluated in a tertiary setting. A retrospective cohort study was performed using a database of all consecutive patients with suspected GBC who had been referred to our tertiary unit. Following routine cholecystectomy, depending on the operative findings, the gallbladder specimen was removed and sent for frozen-section analysis. If malignancy was confirmed, the depth of tumour invasion was evaluated, followed by simultaneous extended cholecystectomy, when appropriate. The sensitivity and specificity of frozen section analysis for the diagnosis of GBC were measured using formal histopathology as a reference standard. A total of 37 consecutive cholecystectomies were performed. In nine cases, GBC was confirmed by intraoperative frozen section analysis, three of which had standard cholecystectomy only as their frozen section showed adenocarcinoma to be T1a or below (n=2) or were undetermined (n=1). In the remaining six cases, malignant invasion beyond the muscularis propria (T1b or above) was confirmed; thus, a synchronous extended cholecystectomy was performed. The sensitivity (95% CI 66.4%-100%) and specificity (95% CI 87.7%-100%) for identifying GBC using frozen section analysis were both 100%. The net cost of the single-stage pathway in comparison to the two-stage pathway resulted in overall savings of £3894. Intraoperative frozen section analysis is a reliable tool for guiding the use of a safe, single-stage approach for the management of GBC in radiologically equivocal cases. In addition to its lower costs compared to a conventional two-stage procedure, intraoperative analysis also affords the benefit of a single hospital admission and single administration of general anaesthesia, thus greatly enhancing the patient's experience and relieving the burden on waiting lists.

Postoperative Lymph Node Recurrence in Esophageal Cancer After Surgery and Prognosis of Chemoradiotherapy.

This study aimed to evaluate the long-term prognosis of definitive chemoradiotherapy and clinical features of postoperative lymph node (LN) recurrence after curative resection of thoracic esophageal squamous cell cancer (ESCC). A total of 586 patients who underwent radical resection of ESCC at the Hiroshima University Hospital from January 2000 to December 2019 were reviewed retrospectively. This study analyzed the clinical characteristics of 54 patients who developed recurrence in a solitary LN by comparing them to 182 patients who experienced total recurrence. Additionally, we analyzed the prognostic factors of 50 patients who received chemo-radiotherapy (CRT). The results revealed a tendency for a higher incidence of solitary LN recurrence in cases of early esophageal cancer and upper thoracic esophageal cancer among all recurrence cases. The 3-, 5-, and 7-year overall survival (OS) rates were 40.5%, 37.8% and 34.6%, respectively, with a median survival time of 27.9 months. Univariate analysis of OS factors, such as age, depth of the primary tumor at the initial surgery, time to LN recurrence after surgery, site of LN recurrence, and the number of the regional LNs with recurrence showed no significant impact on OS. Approximately 35% of patients with ESCC who experienced LN recurrence after curative resection achieved long-term survival through CRT. Despite the absence of identifiable prognostic factors, CRT proves to be a valuable initial treatment option for LN recurrence.

Staycation: A review of definitions, trends, and intersections

Staycations have emerged as a popular alternative in the tourism industry, driven by travel risks and restrictions. However, the concept of staycations remains ambiguous, lacking a clear definition and distinct features. This review aims to shed light on key aspects of staycations, including time, distance, types, locations, cost, and benefits. As tourism becomes an integral part of modern lifestyle, there is a need for further research on proximity experiences, both in physical and online spaces. Future studies should focus on staycation development, product design, well-being considerations, and sustainability aspects. This review offers valuable insights to support in-depth investigations, enabling the enhancement of domestic tourism and resident well-being. It also emphasizes the importance of integrating advanced technologies and promoting sustainable practices for a thriving staycation industry.

Accelerated Benders decomposition and local branching for dynamic maximum covering location problems

The maximum covering location problem (MCLP) is a key problem in facility location, with many applications and variants. One such variant is the dynamic (or multi-period) MCLP, which considers the installation of facilities across multiple time periods. To the best of our knowledge, no exact solution method has been proposed to tackle large-scale instances of this problem. To that end, in this work, we expand upon the current state-of-the-art branch-and-Benders-cut solution method in the static case, by exploring several acceleration techniques. Additionally, we propose a specialised local branching scheme which exploits the separability of the problem by time period. This scheme uses a novel distance metric in its definition of subproblems and features a new method for efficient and exact solving of the subproblems. These methods are then compared through extensive computational experiments, highlighting the strengths of the proposed methodologies.

Clinical characteristics and management of vertebral artery dissection without definitive imaging features: A single center cohort study

BackgroundManagement of vertebral artery dissection (VAD), which is difficult to diagnose definitively on imaging, is a clinical concern. The aim of this study was to clarify the clinical characteristics of VAD without definitive imaging features and evaluate our clinical decisions and their consequences. MethodsWe searched our database to identify patients with VAD registered between January 2008 and December 2021. We performed a retrospective chart review to obtain detailed clinical information and compared the clinical characteristics and radiological findings between patients with definitive VAD and those with non-definitive VAD by radiological findings at the initial evaluation. ResultsOf 188 patients (mean age 52.7 ± 12.3 years, 121 male), 127 had definitive VAD. Patients in the definitive group had a younger average age and a high rate of intramural hematoma, while those in the non-definitive group were more likely to have a history of hypertension. Overall, the prognosis was good for the majority (n = 163), and there was no significant difference in the prognosis between two groups. Especially, the prognosis of non-definitive VAD patients without stroke was favorable. ConclusionsCases of non-definitive VAD are likely to be complicated by atherosclerotic changes. Therefore, clinicians should carefully evaluate the potential etiologies based on the clinical history and imaging data to provide patients with the optimal treatment options. Identification of IMH was an important factor to make a definitive diagnosis, and the vessel wall imaging is a useful imaging modality for the purpose.

Ways of increasing the efficiency of physical exercises of teenage school students with impaired health

The work is devoted to the definition of anatomical and physiological features of the formation of the movement culture of schoolchildren. The relevance of the issue of increasing the effectiveness of physical exercise classes for primary school girls with postural disorders is substantiated and is the formation of a culture of movements. It has been established that postural disorders are a prerequisite for the appearance of accompanying diseases and abnormalities in physical development and negatively affect the culture of movements, distorting the physique, plasticity of movements, gait, impair motor achievements during physical exercises, lead to a decrease in motivation for motor activity, negatively affect well-being children, lead to the emergence of psychological complexes and complicate socialization in the student body. According to the index method, which included the determination of the shoulder index, which characterizes the level of stooping (kyphotic posture), and the index of vertical curvature of the spine, which indicates the presence of scoliotic posture, it was found that 26.3% of schoolgirls have various posture disorders, while 82 of them .8% of girls have slouching (kyphotic posture), the other 17.2% of schoolgirls have scoliotic posture in various variants of vertical curvature of the spine. Since the level of some motor indicators indirectly determines the culture of girls' movements and affects the formation of a posture stereotype, pedagogical testing of various types of strength, coordination abilities and flexibility of elementary school students was conducted. At the same time, a significant difference was recorded between the motor development of schoolgirls with various postural disorders in the indicators of strength endurance of the muscles of the abdomen, back, flexibility, plasticity and static balance of healthy girls and schoolgirls with postural disorders. The conducted linear correlation analysis using the Pearson method between posture indicators and movement indicators showed a reliable relationship of moderate strength between the posture indicator and some movement indicators, which justifies the need to develop a methodology for teaching the movement culture of elementary school students with posture disorders in the process of physical education.

Fractal-Based Multi-Criteria Feature Selection to Enhance Predictive Capability of AI-Driven Mineral Prospectivity Mapping

AI-driven mineral prospectivity mapping (MPM) is a valid and increasingly accepted tool for delineating the targets of mineral exploration, but it suffers from noisy and unrepresentative input features. In this study, a set of fractal and multifractal methods, including box-counting calculation, concentration–area fractal modeling, and multifractal analyses, were employed to excavate the underlying nonlinear mineralization-related information from geological features. Based on these methods, multiple feature selection criteria, namely prediction–area plot, K-means clustering, information gain, chi-square, and the Pearson correlation coefficient, were jointly applied to rank the relative importance of ore-related features and their fractal representations, so as to choose the optimal input feature dataset readily used for training predictive AI models. The results indicate that fault density, the multifractal spectrum width (∆α) of the Yanshanian intrusions, information dimension (D1) of magnetic anomalies, correlation dimension (D2) of iron-oxide alteration, and the D2 of argillic alteration serve as the most effective predictor features representative of the corresponding ore-controlling elements. The comparative results of the model assessment suggest that all the AI models trained by the fractal datasets outperform their counterparts trained by raw datasets, demonstrating a significant improvement in the predictive capability of fractal-trained AI models in terms of both classification accuracy and predictive efficiency. A Shapley additive explanation was employed to trace the contributions of these features and to explain the modeling results, which imply that fractal representations provide more discriminative and definitive feature values that enhance the cognitive capability of AI models trained by these data, thereby improving their predictive performance, especially for those indirect predictor features that show subtle correlations with mineralization in the raw dataset. In addition, fractal-trained models can benefit practical mineral exploration by outputting low-risk exploration targets that achieve higher capturing efficiency and by providing new mineralization clues extracted from remote sensing data. This study demonstrates that the fractal representations of geological features filtered by multi-criteria feature selection can provide a feasible and promising means of improving the predictive capability of AI-driven MPM.

Expressions with Quasipositions in the Oldest Polish Language

The article describes Old Polish constructions containing expressions and phrases constituted around such elements as name, for name, mentioned, czusz, word, i.e., e.g. high mountain for the name of Tabor; said area Zakrzewo; in the city, his name is Kamon. As has been proven, they largely imitated typical groups with appositive adjectives. In many cases, they were used interchangeably in texts, e.g. follower, czusz Jan / follower Jan; the river’s name is Jijon/Jijon River; on the mountain of Gilead/toward the mountain of Gilead. Due to the peculiarities of their structure and specific syntactic limitations, the analyzed constructs gradually go out of use in relation to the expansive and hitherto exploited appositional groups. Their use was not favoured by their analytic structure and the complexity of the duplication of the syntactic scheme. They relied on a greater number of components than synthetic appositions. The expressions described in the article functioned mainly in medieval Polish, but, for example, a proper name was still found in the 17th century, and the proper name was also found in modern Polish. In the literature, phrases such as czusz / toczusz, to jest or słowie were sometimes treated as appositions. However, due to the definitional features of appositional groups, they should be excluded from this set.

The book typology in modern studies: responding to Y. V. Nesterovich’s article “Reviewing the “book” term explication in the context of documentology” (Scientific and technical libraries. 2022. No. 7, pp. 129–147)

The author substantiates the application of transdisciplinary approach to the book typology studies. While emphasizing the relevancy of these studies, she reviews the theoretical aspects of the book definition and typological features as they appear in the article by Yury V. Nesterovich “Reviewing the “book” term explication in the context of documentology”. The analysis makes the author convinced that the book typological characteristics have to be seen as the theoretical foundation for grouping the information objects of the book type rather than as the basis for classifying the items within this type structure. In this context, the “book’ term has to be formulated from metatheoretical perspective, along with the documentological and categorical approaches, and adopted to the present information space. Such analysis enables to study the book as a complex fuzzy system and to look at the book typology from the perspective of fuzzy logics theory The author emphasizes transdisciplinary character of these studies and cites some results of fuzzy logic application to e-book analysis. She concludes on the good perspectives for transdisciplinary strategies in the book typology studies.

Group Variable Selection via Group Sparse Neural Network

Group variable selection is an important issue in high-dimensional data modeling and most of existing methods consider only the linear model. Therefore, a new method based on the deep neural network (DNN), an increasingly popular nonlinear method in both statistics and deep learning communities, is proposed. The method is applicable to general nonlinear models, including the linear model as a special case. Specifically, a group sparse neural network (GSNN) is designed, where the definition of nonlinear group high-level features (NGHFs) is generalized to the network structure. A two-stage group sparse (TGS) algorithm is employed to induce group variables selection by performing group structure selection on the network. GSNN is promising for complex nonlinear systems with interactions and correlated predictors, overcoming the shortcomings of linear or marginal variable selection methods. Theoretical results on convergence and group-level selection consistency are also given. Simulations results and real data analysis demonstrate the superiority of our method.