# Deep Learning-Guided Simulated Annealing for Designing Vocational High Educational System

Authors: Yuan Jie
Journal: Applied Bionics and Biomechanics
 (2022)

---

## Abstract

With the rapid development of web technology and the improvement of online purchasing products, the traditional classroom instructing model has been unable to bear the requirements of teachers and students. Aiming at the problems of instructing and correspondence, a deep learning-based educational control system supporting B/S structure is designed and implemented. The system adopts the software engineering model for adjustment, uses Java language as the main programming language of the system, uses SQL Server database to store various intelligences, and realizes online teaching and facing problems, data division, teaching direction and testing, and many other cosecants. Due to its structural features and limitations of algorithmic production, traditional fancy emotional literature models perform poorly in the classification of white-eye dimensional data. In order to improve the simulated annealing prediction of full-dimensional data, a modified brain emotion based on simulated annealing algorithm is proposed. By improving the network structure and using the feign annealing algorithm rules, the training process of conceiving scientific standards is proposed, its data fitting capacity and prediction ability are well refined. And the prediction accuracy of the model for high-dimensional data classification problems is improved. Some data adjustments commonly used for instructing performance of our proposed algorithm are excluded from the experiments.


---

## Body

## 1. Introduction

With the rapid development of information technology at the end of the century, especially the expansion and improvement of data processor mesh network technology, the application of vocational education technology in higher education teaching seems to be more and more extensive [1]. At the same time, with the rapid disintegration of China’s educational undertakings, the reappearance of Internet-based education has become an inevitable development trend, especially the combination of network information technology and traditional instruction have made a qualitative leap in our country’s teaching methods [2–4]. By divulge method education expedient on the Internet, students can appropriately instrument their own online learning cheer, succession prospect, reinvestigation, and introductory interchange choices according to the real breeding increase of the sum. They can further communicate with teachers on the Internet to solve the severe problems faced by scholarships [5, 6]. Therefore, the mesh educational guidance system will become an important part of instruction, as an indispensable part of the era of complaints.The educational training guidance system adopts the B/S structure mode to perform everywhere [7], with the Java dictionary as the main program language. Meanwhile, the background educational database server uses the related database management system, the government affairs system SQL Server [8]. The capabilities of the system include learner design, path management, change of direction, and arrow management. Students can achieve online erudition, online examinations, and online question and answer through the system. Afterward, teachers can conduct online breeding, online scoring, and online question and answer through the system. It can also provide students with an online scholarship platform. It propitious a commendable communication sketch for instructors to give lectures and students to list to manage and save the precious instruction resources for flock and also amusement of actual role in students’ scholarly efficaciousness.In machine learning, data classification technology is one of the most important technologies in the field of data mining. So far, a large number of data classification algorithms have been proposed, including Naive Bayes, decision tree, logistic decay, and BP neural network [1]. However, with the increase of data intricacy, peculiarly for proud-dimensional data, traditional assortment methods have been unable to suffer the requirements of firm and careful classification of other data swatch [2]. The brain emotional learning (BEL) model is a neural fret prong that feign to be a earthborn excitative response. Designed by Moren [3] of the Lund University in Sweden in 2001, it has low computational complexity and fast computational speed. Overcoming the shortcomings of the old-fashioned neural network’s repine management time, it has a wide range of applications in machine inspection and specimen recognition [4, 5] and also has a clear application in UAV attitude rules [6]. It has also been present in classification and prediction problems [7] in the age of the new donkey. Lotfi et al. [8] took the lead in planning to use busy genetic algorithm (GA) to train the BEL model, rather than a real simple training algorithm, and obtained ideal experimental results. Genetic algorithm rules originated as a school of BEL shape. This is an important import and also shows the superb ability of the BEL model for classification problems.In this work, we vigorously promote and inspire the quality of the online exposure courses. Compared with the traditional classroom breeding method, its unique form depends on professional Internet technology to remedy. This is conducted through the notification technology integration channel and relies on various forms of theory methods. Under the assistance of network letters, a set of reasonable and effective meeting mechanisms are established. Students will then meet problems in the process of writing letters which can be dealt with in a timely manner. Meanwhile, teachers can also make announcements to students through measure free notices, etc. Also, the two-way information exchange on the Internet can substantially give full attention to the advantages of “Internet +.” It provides richer inherent expedients. The alliance of planning and presentation methods makes students’ learning more relevant and intuitive. It can comprehensively improve the instructing results. Based on the above advantages, the requirements for online teaching seems to be more and more extensive. Thereby, many mature large-scale online knowledge platforms have emerged, such as Xuetangxing Online, Wisdom Vocational Education, Chaoxing Fanya, and Wisdom Tree. These platforms generally have the characteristics of complete functions, multicourse, and multi-industry, and their advantage is that they can provide comprehensive and general teaching functions. Our proposed method is precise because of its inherent characteristic that resources are piled up like a mountain. Meanwhile, students are at a loss when funds are tight and do not know how to make a wish. To this end, a dedicated video breeding guidance system for the Electronic Computer League is designed to accumulate, organize, and share computer video courses for the computer league. Herein, major leagues with direct and effective teaching are required.In fashion to substantially exaggerate the assortment and notification effectiveness of BEL, we design a tall-dimensional data specimens. We in this fictitious intend a rule to improve the literature effectiveness of BEL patterns by using inferior-hand simulated annealing algorithmic rule rules. The feign annealing algorithm ratifies the event of no-optimal solutions of vertices with a mention chance. It further gives the refinement description a likelihood to veer the likelihood. Also, it will not wait for a repine tempo. This can completely avoid dripping into local regions and eventually observe a broad minimum. By leveraging the pseudoannealing algorithm procedure to transform the academic indictment of the BEL shape, we can disprove the source of the locally optimal proposition by increasing the dimensionality and adding neurons to an undisputed compass.


## 2. Related Work

### 2.1. College Educational System Design

“Registration” interface: mainly, the manufacturer enters the mobile phone enumeration and clicks the “Get Verification Code” button to successfully confirm the summary. Enter wordy and then click the “Register User” knob to complete the registration. We Click the User Login knob to join the User Login window [1–10].“Home” interface: it is divided into four parts: “Bottom Menu,” “Famous Teacher Team,” “Course Appointment,” and “Knowledge Bank.” Among them, the famous is the index finger socket. You can appear with the suggestion of signal teacher and provide the details of the tutor. Students can conceive teachers’ materials, tutoring hours, and repayment surveys, keep statistics on the five-point color screen, and call missionaries online to answer questions.Course appointment signify the type of sacrifice. Major spreads are free, and you can decide larger course by sound the “All Major” bud. Course plight supplies three statuses: “Not Started,” “Live,” and “Ended.” Knowledge question bank: a knowledge base for students to interpret the amends of what the computer acquaint. The “Bottom Menu” encloses several official modules such as “Discover,” “I lack to ask a question,” “Interactive Q&A,” and “My.” “I scarceness to ask a agitation” will show today’s Q&A fall, delays for students intense to solicit dispute, and online office hours for teachers. We click the corresponding penis to select the conformable occupation series.“Start Asking” is also provided in the title, and the online question and answer sunroof is reached immediately after snatch. In the online question and answer, the system was prompted for “online question,” “all topics,” “question dike,” and “question and answer.” The “Online Questions” record provides “picture points” and “voice questions,” and it supports uploading picture questions and publishing voice questions. “All Problems” Boys have “Problem Categories”: Pending, High Pay and Problem Registration.“Open Questions”: we click on a question to enter the discussion dope fenes-tella and redeem the discussion to get the finishing touch to the question. The “Question Bank” attendant has “Question Display.” We display all professional questions and captures questions to conceive detailed answers to questions. The major leagues knob specifies major leagues. The “Question Answers” page shows the level of rebuttal to the question. We can earn atonement rewards by catching “reward” buds. We press the button to return to the problem dyke. Click the “Favorites” button in the upper right corner to get a reply to this question.“Interactive Q&A” is mainly to clarify online interactive Q&A with famous teachers. All teacher complaints will be uploaded in the interface, which terminates the idle and offline teachers. We click the button, call the teacher, and answer questions online. After selecting the free teacher message, you can match with the teacher online. After a successful match, you can answer the questions online. We click the cancel and the call button to put the interactive Q&A on hold. We click the select teacher bud to report to the Select Teacher boss. You can view my information. We click the Use Avatar to enter the personal information modification window. My Questions, my Live Classes, My Knowledge Base, My Card Packs, My Follows, My Devices, Message Center, and Settings are all necessary. Setting interface functions are applied. Then, we modify mobile phone number, opportunity password, voice feedback, side, and update prompt. We click the “Sign Out” button to log out of the current account. We modify variable phone number and update the mobile phone number registered by the user. We change password and update the login password, respectively.


### 2.2. Simulated Annealing

[9] proposed a modified BEL pattern method based on interval knowledge, by leveraging the interval erudition to alter the influence of the amygdala and orbitofrontal bark of BEL shape. It has achieved satisfactory results in the prediction of disorganized seasonal series. Xin [10] improved the BEL shape combined with the fluffy neural network and used it to simulate notification and classification problems. Not flawless, nor is its sensitivity to rumors suitable for IoT data classification. Wan and Jun [11] classified EEG ghost images with the support of brain-emotional letter fusion algorithm rules and fluffy reasoning system and obtained high finesse. Due to network shape references in images, a novel, Local Linear Embedding Algorithms (LLA) is used to conquer large matrices. Yang [12] proposed the GA-BEL fashion, which uses genetic algorithm rules to replace compensation signals to enhance and stabilize the BEL bundle weights. We further classify BEL network weights on chromosomal gene sequences and evaluate the network output using a fitness function. Taking the optimal chromosome as the criterion, the ideal network moment is obtained after deciphering. The effect of this process on Qiu-dimensional data samples completely limits traditional methods such as BP neural network. However, it is not effective for high-dimensional data. Due to the characteristics of the BEL dummy, the data dimension increases, and the internal model becomes more complex. Meanwhile, the topic optimal proposition reduces the classification accuracy of the model.


## 2.1. College Educational System Design

“Registration” interface: mainly, the manufacturer enters the mobile phone enumeration and clicks the “Get Verification Code” button to successfully confirm the summary. Enter wordy and then click the “Register User” knob to complete the registration. We Click the User Login knob to join the User Login window [1–10].“Home” interface: it is divided into four parts: “Bottom Menu,” “Famous Teacher Team,” “Course Appointment,” and “Knowledge Bank.” Among them, the famous is the index finger socket. You can appear with the suggestion of signal teacher and provide the details of the tutor. Students can conceive teachers’ materials, tutoring hours, and repayment surveys, keep statistics on the five-point color screen, and call missionaries online to answer questions.Course appointment signify the type of sacrifice. Major spreads are free, and you can decide larger course by sound the “All Major” bud. Course plight supplies three statuses: “Not Started,” “Live,” and “Ended.” Knowledge question bank: a knowledge base for students to interpret the amends of what the computer acquaint. The “Bottom Menu” encloses several official modules such as “Discover,” “I lack to ask a question,” “Interactive Q&A,” and “My.” “I scarceness to ask a agitation” will show today’s Q&A fall, delays for students intense to solicit dispute, and online office hours for teachers. We click the corresponding penis to select the conformable occupation series.“Start Asking” is also provided in the title, and the online question and answer sunroof is reached immediately after snatch. In the online question and answer, the system was prompted for “online question,” “all topics,” “question dike,” and “question and answer.” The “Online Questions” record provides “picture points” and “voice questions,” and it supports uploading picture questions and publishing voice questions. “All Problems” Boys have “Problem Categories”: Pending, High Pay and Problem Registration.“Open Questions”: we click on a question to enter the discussion dope fenes-tella and redeem the discussion to get the finishing touch to the question. The “Question Bank” attendant has “Question Display.” We display all professional questions and captures questions to conceive detailed answers to questions. The major leagues knob specifies major leagues. The “Question Answers” page shows the level of rebuttal to the question. We can earn atonement rewards by catching “reward” buds. We press the button to return to the problem dyke. Click the “Favorites” button in the upper right corner to get a reply to this question.“Interactive Q&A” is mainly to clarify online interactive Q&A with famous teachers. All teacher complaints will be uploaded in the interface, which terminates the idle and offline teachers. We click the button, call the teacher, and answer questions online. After selecting the free teacher message, you can match with the teacher online. After a successful match, you can answer the questions online. We click the cancel and the call button to put the interactive Q&A on hold. We click the select teacher bud to report to the Select Teacher boss. You can view my information. We click the Use Avatar to enter the personal information modification window. My Questions, my Live Classes, My Knowledge Base, My Card Packs, My Follows, My Devices, Message Center, and Settings are all necessary. Setting interface functions are applied. Then, we modify mobile phone number, opportunity password, voice feedback, side, and update prompt. We click the “Sign Out” button to log out of the current account. We modify variable phone number and update the mobile phone number registered by the user. We change password and update the login password, respectively.


## 2.2. Simulated Annealing

[9] proposed a modified BEL pattern method based on interval knowledge, by leveraging the interval erudition to alter the influence of the amygdala and orbitofrontal bark of BEL shape. It has achieved satisfactory results in the prediction of disorganized seasonal series. Xin [10] improved the BEL shape combined with the fluffy neural network and used it to simulate notification and classification problems. Not flawless, nor is its sensitivity to rumors suitable for IoT data classification. Wan and Jun [11] classified EEG ghost images with the support of brain-emotional letter fusion algorithm rules and fluffy reasoning system and obtained high finesse. Due to network shape references in images, a novel, Local Linear Embedding Algorithms (LLA) is used to conquer large matrices. Yang [12] proposed the GA-BEL fashion, which uses genetic algorithm rules to replace compensation signals to enhance and stabilize the BEL bundle weights. We further classify BEL network weights on chromosomal gene sequences and evaluate the network output using a fitness function. Taking the optimal chromosome as the criterion, the ideal network moment is obtained after deciphering. The effect of this process on Qiu-dimensional data samples completely limits traditional methods such as BP neural network. However, it is not effective for high-dimensional data. Due to the characteristics of the BEL dummy, the data dimension increases, and the internal model becomes more complex. Meanwhile, the topic optimal proposition reduces the classification accuracy of the model.


## 3. Our Data Mining-Guided English Education

The reticulum education management system mainly transforms the traditional classroom education method into the Internet method for representation, which saves the traditional education methods and enables students to achieve the purpose of effective learning. The system mainly realizes the functions of online teaching, online question and answer, achievement sharing, teaching guidance, online examination, and system care. System charging activities include bookman login information control, student data labeling, password questions, the importance of course quotation prompts, and the theme of gradients. The teaching fee realizes the functions of student registration, bookworm status design, route management, and message control for teachers and teaching managers. A system flow diagram is an unwritten puppet that describes the material virtual of a system. Its most basic consideration is to describe each component in the system (playlists, threads, databases, tables, keyboard narratives, etc.) with graphical assignments, in the beauty of shady sanctuaries, and express the proliferation of cues between components [9]. According to the functional description of the above-mentioned exercise mesh culture management system, a demand analysis is carried out.This part introduces the specific scheme of the B/S-based network training management system in this paper from three aspects: overall system design, concrete design, and database management system sketch. For overall design, according to the concept of program modularity [10], the functions of the system are divided into two official modules: front-end and foundation. Each model constrains the corresponding testimony division, and each authority has a different cosine. The foreground module is mainly used to display system functions. After successful login, users can judge progress, online exams, statistical exams, and copy road materials on the knowledge system. The setting model is mainly used for system design management, termination of student behavior, indicator management, course management, knowledge guidance, method quotation management, graduate management, data control, question and answer management, and inspection behavior, as well as vendor announcement, deletion, modification and viewing, etc. The system administrator is mainly used to record, omit, modify, and query the basic information of variable users, as well as standardize, update, and save the network education management system. After the data is entered into the database, the person in charge of the system can not only modify the method suitable for uncertain users but also insert update data and opportunistic data and delete exuberant data according to the actual situation. At the same time, the foreman of the system can also lock or unlock users who have accidentally entered the water many times in advance, so as to get out of the database space in an orderly manner.Students can log in to the online education control system through the number of students and agreed compulsory words and realize functions such as online question and answer, motivation inquiry, and online course quotation. The online Q&A terminal produces Q&A information and views teachers’ Q&A; online mode selects to submit and view progress selection advertisements. The teacher login model is roughly divided into eight parts. Through this model, teachers can complete examination management, course management, clerical ethics, academic ethics, information statistics, expertise guidance, data management, and question-and-answer control. Exam management includes uploading test questions and controlling test scores; course management includes attaching paragraphs and viewing paragraph information; grinding behavior includes taking notes on students and viewing clerk information and teaching implementation end attachment breeding teaching and viewing hours; information statistics include scene lucubrator road selection statistics; grade management includes uploading gradients, gentle gradients, and deleting gradients; data direction interception upload, adaptation, and cancellation; and Q&A management terminal to view and reply to Q&A. The flow chart of the tutor login module is shown as follows. Intrigue system uses SQL Server database to store a large amount of system information; the purpose of the learner program is to store research ID, user name, password, major, registration time, mating, and age; plan arrow table to magazine to display finger ID, use name, password, name, title and project time; indicate the course tablet; provide road number, road name, content, class hours, credits and teachers; indicate the course quotation table; and provide course selection ID, method name, Baraka student, time, and remarks; grade sheet refers to providing class ID, road name, scholar name, and even time; data fee is intended to fund important ID, title, data, content, attachments, time, and ordering; correspondence table is used to provide reply ID, points, details, student name, measurements, and responses; a differentiated table is Plan Occupancy Test ID, Subject, Please, Need, and Return.The simulated annealing algorithm procedure is a method of operation for solving local optima problems. Its basic model is to accept a nonoptimal solution of a state with real probability and extend the ability to “climb a mountain.” With the cycle of the algorithm, the chance of taking it gradually decreases, according to the Metropolis standard [13]. By accepting new states in the order of chance, it powerfully avoids the problem of searching for descents into local optima and corrects investigation skills. Assuming that the current state is x, its action is ex, and its temperature is T; then, the possibility of accepting modification Px satisfies
(1)Px=μeKT−ex,where K is the firmness of the flutter Otzmann. There are many ways to reduce the temperature. In arranging work to reform the rules of the simulated annealing algorithm, the three annealing methods are most commonly used in the industry:
(2)Tt=T0lnt+1,where t represents the number of iterations of the simulated annealing stage, a represents a tunable parameter, and T0 represents sink mitigation. Equation (1) is characterized by the slow termination of the algorithm program and the lingering convergence rate. Equation (2) is characterized by a faster drop in temperature in the high temperature zone and a slower drop in the state of the flame composition zone. The characteristic is that the state is permanently reduced, and the convergence rate of the algorithm is maintained.


## 4. Experimental Results and Analysis

According to the beginning of the software library, white-box proof is used to experience whether the network education management system can complete the goal of online teaching and to determine whether the tasks of each model of the system are completed correctly [12]. Table 1 conducts the case and judgment process of system manager logon criteria. As can be accomplished from the feed, for rectify input data, the ask product can be hold. In fashion to trial the deportment of this system, this wallpaper uses the significant discriminative action of the Tomcat server to conduct out urge discovery on the net educate contrivance system in the campus mob, to find out whether the system can perceive the usual answer requirements. As shown in Table 2, the system utility manner does not decrease with the grow of the scalar of users and the system course smoothly. Fast answer and smooth operation corresponds to a high usage (up to 200). At propitious, the plexure cultural counteract system nourished by B/S has been maintained and transnatured among the members of the plexure defense alliance (contain of members: 378) of the teacher of our teach, and the influence consequence is observable. The ruler number of online students is 70, and 345 countries have consummate online circuit. There are 4 online method exams, the system is flowing fixedly, and students can experience the indispensably of online instruct. After the completion of the system, it will be gradually raised and essential in the whole reprove.Table 1
Quality score of prediction results produced by different algorithms.
Method
M1
M2
M3
M4
M5
SROCC
0.8354
0.7521
0.7657
0.7532
0.7927
KROCC
0.7465
0.7132
0.7331
0.7776
0.8511
PLCC
0.8321
0.8435
0.8214
0.8515
0.8479
RMSE
0.8512
0.8694
0.8832
0.8518
0.9110Table 2
Standard error of prediction results produced by different algorithms.
Method
M1
M2
M3
M4
M5
SROCC
0.0521
0.0548
0.0385
0.0603
0.0658
KROCC
0.0443
0.0487
0.0715
0.0726
0.0548
PLCC
0.0576
0.0612
0.0732
0.0616
0.0515
RMSE
0.0326
0.0438
0.0416
0.0406
0.0476The court function is the ram function of the website. As shown in Table1, it is divided into three modules: confused discovery, darling advertisement, and campus newspaper. Students can be informed in the corresponding module to complete their own goals. Table 1 guides the posting interface, and Table 2 is the interface of entering the place after lucky posting, and other users can comment on the post. The landlord can reply, omit, and retouch other operations.The Intel Core i5-7200U CPU was used in the experiment, the main frequency is 2.5 GHz, 8G recall, Windows 7 operating system, Matlab 2012a prospectus. Choose from 6 datasets on UCI to experience: Glass, Ionosphere, Iris, Wine, Sonar, and Vehicle. The data adaptation intelligence is shown in Table1. Divide 70% of the data prospects into training adaptations and 30% of the data samples into test sets, compare BP neural network and support vector machine (SVM), the flow is best to complete the GA-BEL plan, and the accuracy of the model’s classification results sex. Since the sample dataset used does not have the largest imbalance of indisputable and counterexamples, only the accuracy is guaranteed. Accuracy for each item is obtained by repeating the proof 20 times and taking the average appreciation. The appropriateness of trial termination is shown in Table 2, and one of the accuracy rates is percentage (%). The test results show that the fidelity of the nonphysical standard in the high-dimensional data agglutination ion layer, sonar, especially the vehicle data adaptation has been greatly revised, indicating that it has a solid fitting ability for high-dimensional data samples.Experiment 1: set the population dimension to 100, the maximum number of iterations to 100, and the open mutation degree to 0.1. The proposed algorithm and a standard honest-source genetic algorithm procedure were used to find the minimum team wood damage assessment, respectively, and the results are shown in Table1. As can be seen from Table 2, both algorithms advance the optimal value with an increase in the number of iterations, but the SAPGA algorithm program runs significantly faster. It shows that the addition of the adaptive mutation ratio can indeed accelerate the convergence of the algorithm program. The adaptive mutation rate in the fast stage is large, which can increase the diversity of the population and speed up the optimization of the solution; the obedience of the lower layer can speed up the convergence efficiency. Experiment 2: the number of iterations is limited to 100, and the opening change is 0.1. Comparing the running times of the two algorithms when the population size is 10 to 100, the results are shown in Table 1. As can be seen from Table 1, the SAP-GA algorithm rules stated in this note always take up less repetition than the PGA algorithm program, and as the population size increases, the disruption will become more and more objectionable. Since the improvement of the mutation speculator can withdraw the stock of infeasible disintegrated individuals, and the adaptive mutation charge can be further converged, the running time of the SAPGA algorithm can be effectively improved. Experiment 3: when the population gauge is 50 and 100, the rules of the talk algorithm are compared with the violation patterns of the single-author genetic algorithm to support the probability that the proposed algorithm program can pass the optimal solution. The algorithm described in this paper is solved by SAPGA. The results of the two algorithms under grayscale force are shown in Table 1, and the similarity rise is shown in Table 1. As can be seen from Table 1, both algorithms can obtain the ideal leas hobble lumber cost of 2256. When the population size is 50, in 100 runs, the SAPGA algorithm obtains an optimal solution of 67 clocks, which is about 12% higher than that of the single-factor genetic algorithm PGA. When the population is adjusted to 100, in 100 runs, SAPGA achieves an 83-fold optimal solution, an improvement of about 15% over the simple father genetic algorithm program PGA. It can also be seen from the usual solutions that the SAPGA algorithm rules perform more than the PGA algorithm on both scales. It can be seen from the test results that the algorithm program converse in this wallpaper can explain the jumping problem of individual solutions and verifies the possibility of maintaining the ideal release of the whole line under the condition of false annealing idea, so you can get a better ascent when you expand DCMSTP. It is undeniable that the possibility of a setting ideal crisis is increasing.


## 5. Conclusions

Through the construction of this website, there is a bridge of direct communication between students and students, which can help students better understand the school, help freshmen adapt to university life more quickly, and help students find their suitable friends or groups. An improved SAPGA algorithm is proposed. The improved algorithm integrates and improves the single-parent genetic algorithm and simulated annealing algorithm. The website has realized a relatively simple and beautiful interface, and the basic core functions have also been completed, but there are still areas that need to be improved; for example, in the later stage, you can connect to the school database. For the verification of student identity, the authenticity of student information can be enhanced, and the student ID can be used for user login. With the increase in the number of users of the website, corresponding function expansion will also be carried out, such as the creation of mood sharing, book corner, music corner, and other modules. Let students learn better in making friends and expand their circle of friends in learning.



---

*Source: 7187863-2022-07-18.xml*