Retracted: Evaluation and Analysis of In ﬂ uencing Factors of National Traditional Sports Tourism on National Cultural Ecology Based on Big Data Discrete Differential Algorithm

. The development of sports tourism is an important way of national cultural development, and its development will inevitably have a certain impact on national cultural ecology. Based on the characteristics of national cultural ecology, this paper adopts the big data discrete di ﬀ erential algorithm to evaluate and analyze the in ﬂ uencing factors of sports tourism development on national cultural ecology. The experimental results show that the discrete di ﬀ erential algorithm based on support vector machine can transform and optimize the solution objectives and solve them e ﬀ ectively. Through data analysis, it can be seen that the development of sports tourism can improve the economic development of ethnic areas, promote the development of regional facilities and environment, and increase cultural exchanges between di ﬀ erent ethnic groups. At the same time, the development of sports tourism has strengthened the development of local national cultural behavior level and spiritual form level and made people reexamine and understand their own national culture. However, in the development of sports tourism, the material form of national cultural ecology has been impacted by the opening of the environment. If the local awareness of the protection of national cultural ecology is not improved, the material form of national culture may be irreversibly damaged.


Introduction
National culture is a collection of national spirit and material wealth.It is created by a nation through long-term historical changes and development in a specific time and space.National culture is the embodiment of the essence of national spirit.National cultural ecology is transformed from the concept of natural ecology, that is, it is a discipline to study the laws and phenomena existing in the process of the emergence and development of national culture with the help of ecological theoretical knowledge of the interaction between human natural and social environmental factors [1].National cultural ecology includes not only the material and spiritual finance created by a nation but also the natural environment and humanistic environment.National traditional sports is also an important part of national cultural ecology [2].Different from modern sports, many national traditional sports have formed a unique national style after thousands of years of transmission from generation to generation, integrated into the cultural connotation and spirit of various nationalities, reflected the characteristics of the local human and geographical environment, combined with the national lifestyle and cultural customs, and an important content for maintaining the relative stability of the national cultural ecological environment [3].With the economic development and the improvement of people's cultural quality, the national cultural tourism resources in the tourism industry are favored by more and more people.The development of national cultural tourism is also conducive to promoting the development of regional economy and the promotion of national culture.It is an important way to realize the inheritance and protection of national culture [4].Due to the impact of modern sports, many national traditional sports also have problems in inheritance and protection.Many local students and young people do not know about local traditional sports activities and have not

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participated in and experienced them.Such development is bound to be detrimental to the integrity and stability of national cultural ecology [5].Therefore, the development of sports tourism has become an important way to inherit and protect traditional sports, and it is also a new direction of the development of national cultural ecology.
Many ethnic areas have gradually carried out sports tourism and ethnic cultural tourism projects, which have achieved good economic benefits and social impact, and promoted the development of local ethnic culture.At the same time, the development of national culture and sports tourism also provides relevant data and theoretical support for the study of national cultural ecology.In the process of studying the inheritance and protection of national traditional sports culture, some scholars pointed out that national traditional sports culture is limited by the environment and will inevitably appear discomfort in the process of social development and show conflict and contradiction with society in a certain era.Inheritance and protection can be realized only when national traditional sports are constantly adjusted and changed and meet the development needs of society [6].This view is in line with the development trend of sports tourism and the performance of traditional sports culture adapting to social needs.Other scholars believe that national traditional sports culture is the embodiment of the production and life needs of workers and the source and driving force that directly serves people's production and life practice [7].Other scholars pointed out that national traditional sports culture has three different levels of nature, namely, nationality, sports, and tradition.It is not only the civilization and cultural achievements created by a nation but also covers the development trend of national culture in the future [8].It can be seen that the development of national traditional sports and the development of national cultural ecology are closely related and inseparable.The development of sports tourism is bound to have an impact on national cultural ecology.Therefore, this paper puts forward the evaluation and analysis of the influencing factors of sports tourism on national cultural ecology based on big data discrete differential algorithm.Through the discrete differential algorithm solution model based on support vector machine, this paper evaluates and analyzes the influencing factors of sports tourism development on national cultural ecology.

Influence Factors of Sports Tourism on National Cultural Ecology
In general, the national cultural ecology can be divided into four forms, namely, material form level, spiritual form level, behavior form level, and system form level [9].Among them, the material form level, that is, the general materialized expression form of national culture, can exist universally in national life and production and is the national character hidden in the ordinary, such as national historical sites, relics, buildings, diet, production appliances, clothing, and national handicrafts [10].The level of spiritual form is the spiritual source and essence of a national culture, and its performance is stable, such as national spiritual ideas, values, and religious beliefs [11].The level of behavior form is the behavior activation and externalization of national culture, such as national etiquette, customs, behavior, and religious etiquette [12].The level of institutional form is the normative expression of a national culture and has a certain degree of compulsion, such as moral norms, religious system, and clan system [13].These four levels of national cultural forms are an important part of national cultural ecology, which interweave and rely on each other and influence and develop each other.Sports tourism is a part of national cultural ecology.Its development is inseparable from the evolution of national cultural space and will inevitably have an impact on national cultural ecology, as shown in Figure 1.Therefore, this paper will analyze the influencing factors of sports tourism on national cultural ecology through big data discrete differential algorithm from the four morphological levels of national cultural ecology.
The national culture bred by different nationalities in different environments is different.Due to the influence of cultural ecology and natural ecology, the sports of each nationality also have differences and their own unique charm.The development of sports tourism can not only promote the promotion and development of national sports culture but also benefit the economic development and national cultural development of ethnic areas.However, everything has two sides.Sports tourism will inevitably affect the stable national cultural ecology in the process of development.First of all, the most intuitive influence is the influence on the level of material form.In the process of continuous inheritance, national culture continues to form tangible material forms and has shown a certain degree of solidification and stability under the influence of relatively closed natural environment, social environment, and spiritual environment.However, the materialization of national culture is not solid and irresistible.In a changing and open environment, it is difficult to maintain a certain stability and is very fragile [14].Therefore, the development of sports tourism in ethnic minority areas will accelerate the opening and change of the local relatively closed environment, have a multifaceted impact and impact on the local social environment, spiritual environment and natural environment, and change the lifestyle and methods of local ethnic groups.At the same time, the promoters and operators of sports tourism often have weak awareness of the protection of national cultural resources, and the material form of national culture is easy to suffer serious man-made damage, or even difficult to restore it.
Secondly, the impact of sports tourism on the level of national cultural behavior.The national characteristics in national culture are often reflected in national customs, codes of conduct, festival activities, and religious ceremonies.They are not only local, diverse, and rich but also unique in aesthetics and mystery.They are the flash points that attract tourists most in national tourism [15].The development of sports tourism is based on national culture, and its essence is still to attract different tourists through unique national culture.The development of sports tourism will not only affect the changes of national cultural material form but also make local residents reexamine and locate their own national culture and directly reflect it in their 2 Wireless Communications and Mobile Computing

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behavior [16].For example, the customs and habits of most ethnic groups are that friends come from afar and should be treated like relatives.However, under the influence of the development of sports tourism, many local residents have improved their economic awareness and provided paid services for tourists, resulting in certain changes in their original customs and behavior norms.As shown in Figure 2, it is a comparison of the changes in the level of national cultural forms in the development of sports tourism.Thirdly, the impact of the development of sports tourism on the spiritual form of national culture.An important embodiment of a national spiritual subject is the spiritual form of national cultural ecology.It is the essential difference between different nationalities and the key factor for the strength of national cohesion [17].Similarly, the form of national cultural ecological spirit is recessive, that is, it is difficult to find and perceive the national cultural spirit with recessive elements in the process of sports tourism development and foreign tourists' tourism [18].However, this does not mean that it is in a constant state, and its spiritual form is also changing in the process of national development, which directly or indirectly affects the schedule life and communication of the national people.The development of sports tourism accelerates the development trend of spiritual form variables.At the same time, the influence of national cultural material form and behavior form will also have a certain degree of impact on the spiritual form.Such changes continue to accumulate, that is, the dynamic changes of national cultural ecology, reflecting the self-regulation ability of a national culture [19].
Finally, the institutional form of national cultural ecology is usually implemented through various coercive means such as the belief of groups benefiting the people and the power of social public opinion.However, with the develop-ment of modern society, the institutional form in national cultural ecology has gradually weakened the universal restraint [20].The development of sports tourism will not only promote the transformation of all aspects in ethnic areas but also bring the collision of other ethnic cultural systems to ethnic areas and make the local ethnic cultural ecology lose its stability and gradually tend to be complex.
In addition to the above effects, the development of sports tourism will promote the economic development of ethnic areas and provide economic support and positive influence for the development of ethnic cultural ecology.At the same time, sports tourism will increase cultural exchanges and population movements among different ethnic groups.It will benefit the healthy operation of different ethnic cultures and absorb the essence of other ethnic cultures in the process of operation, drawing lessons from the achievements of excellent national cultural development and constantly stimulating the internal life mechanism of its own national culture.The development of sports tourism is also the behavior of the nation's own initiative and positive improvement of culture.Only when economic development and interests are guaranteed can local residents be implemented and mobilized to protect and improve the national cultural ecology.

Evaluation Model of Influencing Factors of Sports Tourism on National Cultural Ecology Based on Big Data Discrete Differential Algorithm
In order to analyze and study the influencing factors of sports tourism on national cultural ecology, the relevant data of national cultural ecology are collected, because the

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relevant data of national cultural ecology are not concentrated in a period of time, but scattered in a period of time.Considering that the traditional numerical methods will increase the computational complexity and require more computing time when solving discrete differential problems, this paper selects the discrete differential algorithm model

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A reproducing kernel space is expressed as F, and a given constant is expressed as α, β.
Let the differential operator of x j at different points in R be as shown in In Sobolev space, the definition of space H K s reproducing kernel of real number s > 1/2 is shown in The function norm in is shown in H K s : in Paley Wiener space, its function can be obtained by integral transformation, as shown in where the characteristic function of ð−π/h,+π/hÞ is expressed as χ h ðtÞ, g ∈ L 2 ð−π/h,+π/hÞ, h > 0.
The space regeneration core of H K s is shown in Combined with Tikhonov regularization and reproducing kernel theory, the discrete differential equation is solved, that is, any number of fixed values are solved by function F in H K s space.The problem is equivalent to the solution of the following problem.The algorithm will iteratively calculate the reproducing kernel with the number of N from a discrete point, as shown in where the given value is expressed as fgðx j Þg N j=1 and the quantity is expressed as N, λ > 0.
The above problems can also be applied through the general framework in the learning theory, that is, to solve

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(9) for any constant greater than zero: In the formula, the loss function used to measure the difference between the predicted value and the real value is expressed as cð⋯Þ.In particular, the insensitive loss function is cððLFÞðx j Þ, gðx j ÞÞ = jðLFÞðx j Þ − gðx j Þj ε = max f0, jðLFÞð x j Þ − gðx j Þj − εg, and ε is the selected positive number.
Then, the H K s solution in Paley Wiener space is the solution The reproducing kernel matrix is shown in Among them, ðL * e j ÞðxÞ = hðL * e j Þð⋅Þ,K h ð⋅ ,xÞi In this way, the above problem can be equivalent to the solution of The addition factor 1/2 in the formula will simplify the calculation without affecting the solution.By introducing relaxation variables to deal with ε − insensitive loss function,

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the above problem can be equivalent to solving where the relaxation variable is − εg.The problem can be set as an original problem and solved by Lagrange multiplier dual method, as shown in As shown in (15), the obtained solution: In the formula, the index set of nonzero input data points related to μ * j , μ j is expressed as J.
In order to further verify the effectiveness of the discrete differential algorithm based on support vector machine to solve the model, the corresponding verification is carried out through two experiments, that is, the experiments on the discrete differential Equation ( 16) and its inverse problem (17): The given interval of unknown functions F and g is ½0, 2π, and the function g in the interval has 300 discrete values.F is solved in the data without noise interference and the data with Gaussian white noise interference, respectively.The results are shown in Figure 3.It can be seen from the results in the figure that the formal solution of F is Fðx Þ = sin x 2 , and the relative errors are 1:1389 × 10 −6 and 4:5127 × 10 −5 , respectively, and the number of support vectors is 15 and 23, respectively.This shows that the discrete differential algorithm based on support vector machine is still effective in the case of noise interference.
Shown in Figure 4 is the result of experiment 2, that is, the given interval of unknown functions F and g is ½0, 2π, and the function F in the interval has 200 discrete values, and g are solved in the data without noise interference and the data with Gaussian white noise interference, respectively.It can be seen from the data in the figure that the true solution is gðxÞ = 3 sin + cos x − 2 sin 2x, and the relative errors

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are 4:9081 × 10 −5 and 9:4136 × 10 −5 , respectively, the number of support vector machines is 9 and 11, respectively, which shows that the discrete differential algorithm based on support vector machine is effective to solve the model, and the model is robust to noise.
To sum up, the solution model of discrete differential algorithm based on support vector machine can transform the discrete differential problem and optimize the solution goal.The corresponding approximate solution can be obtained under the framework of support vector machine, and the obtained solution is sparse and robust to noise.The solution model of discrete differential algorithm based on support vector machine is not only effective but also can provide corresponding effective data for subsequent evaluation.

Analysis of Evaluation Results of Influencing Factors of Sports Tourism on National Cultural Ecology Based on Big Data Discrete Differential Algorithm
This paper selects the Braun nationality in a certain area as the experimental object and evaluates and analyzes the influencing factors on the local national cultural ecology before and after the development of Braun sports tourism through the discrete differential algorithm solution model based on support vector machine.Based on the above four forms and levels of national culture, this paper analyzes the influencing factors of Bulang national cultural ecology.
Figure 5 shows the local youth and students' understanding of the traditional customs and cultural activities of Bulang Nationality before and after the development of Bulang Nationality Sports Tourism.According to the relevant survey data, this paper selects the traditional customs and cultural activities of 11 Bulang Ethnic groups, which are ancestor worship, village god worship, cow foot washing, jumping meeting, sheepskin meeting, lamp playing, knife God Festival, wooden dragon, plug sacrifice, valley soul sacrifice, and June 3 Festival.It can be seen from the data in Figure 5 that before the development of sports tourism, the youth and students of Bulang Nationality knew more about ancestor worship and village God worship in traditional customs and cultural activities, only a small number of people knew about the other eight traditional customs and cultural activities, before the development of sports tourism, and 15.6% people did not understand traditional customs and cultural activities; after the development of sports tourism, this proportion decreased to 4.5%.For the development of sports tourism, it has carried forward the traditional customs activities of Bulang Nationality, so that more local youth and students can have a deeper understanding of the traditional customs activities of Bulang Nationality.At the same time, it also allows more foreign tourists and nationalities to understand the traditional customs activities of Bulang Nationality.This shows that the development of sports tourism is conducive to the strengthening and development of the behavioral form level in the national cultural ecology, allowing the local nationalities to reexamine their own national culture and strengthen their understanding of national culture.Better inherit and develop the famous ethnic culture.
Figure 6 shows the use of language at home before and after the development of sports tourism.The area where Bulang Nationality is located is composed of multiple nationalities.It can be seen from the data in the figure that before the development of sports tourism, most people will choose to speak local dialect at home, followed by Bulang language, and Mandarin is the least.After the development of sports tourism, the number of people who choose to speak local dialect has decreased, and the number of other three languages has increased.Putonghua is the most increased, followed by Bulang language.This shows that the development of sports tourism can attract a large number of foreign enemies and foreign tourists.In order to better communicate, the number of people speaking Mandarin is increasing.At the same time, the increase of communication between ethnic groups with similar languages has also promoted the use of different ethnic languages, and the Braun nationality, as the main body of national cultural exchange, has also increased the use of national languages.
Figure 7 shows the comparative results of national cultural ecological evaluation in Bulang area before and after sports tourism.Before the development of sports tourism, the settlement environment, facilities and material environment, comprehensive economic environment, landscape resources, and historical sites of national cultural ecology in Bulang area were evaluated accordingly.It can be seen from the data in the figure that the scores of comprehensive economic environment and physical environment of facilities in Braun area are relatively low, while the scores of the other three are relatively high.This shows that due to the relatively closed environment and relatively backward economic development, the physical environment of regional facilities is relatively poor, but the protection of natural environment and material form level in national cultural ecology is relatively good, which has the conditions for developing tourism.After the development of sports tourism, the comprehensive economic environment score is improved, which promotes the local economic development and provides support for the development of regional facilities and material environment.However, because the main body of the development of local sports tourism ignores the protection of the ecological material form level of national culture and the human and natural environment, it has been damaged and had a negative impact.Therefore, the scores of landscape resources and historical sites have been reduced.
To sum up, on the one hand, the development of sports tourism can promote the exchange of national culture, strengthen the development of the level of ecological behavior and spiritual form of national culture, improve the regional economic development, and provide the development foundation for the national living environment and regional facility environment.But on the other hand, the development of sports tourism makes the material behavior level of national cultural ecology bear a certain pressure and even be damaged to a certain extent.At the same time, the increase of foreign tourists increases the number of Braun

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people using Mandarin and Braun languages.However, with the passage of time, it is very likely that the increase of Mandarin will exceed the number of Braun language, which is very likely to hinder the development and inheritance of Braun language under certain conditions.Blindly pursuing the development of regional economy can improve the regional facility environment and settlement environment, but it will also make the homogeneous development of national culture and lose its unique characteristics.

Conclusions
(1) National traditional sports culture is an important part of national cultural ecology, and its development will inevitably change the state of national cultural ecology.The development of everything must have both positive and negative effects.Therefore, this paper puts forward the evaluation and analysis of the influence factors of sports tourism on national cultural ecology based on big data discrete differential algorithm and evaluates and analyzes the influence factors of national cultural ecology through the solution model of discrete differential algorithm based on support vector machine (2) The experimental results show that the discrete difference algorithm based on support vector machine can transform and optimize the solution target and get the approximate solution.At the same time, it has sparsity and noise robustness.This method is effective and can provide corresponding effective data for subsequent evaluation.In addition, by analyzing the understanding of Bulang teenagers and students on national customs and activities, the use of their hometown language, and Bulang national cultural ecology before and after sports tourism, the development of sports tourism is conducive to the exchange and development of national culture and can provide support for the development of regional facilities and environment while promoting regional economic development (3) The development of sports tourism makes local ethnic groups reexamine and understand their own national culture and promotes the development of ecological behavior and spiritual form of national culture.However, the material form of national cultural ecology has been affected by the open environment, resulting in man-made damage and a certain degree of negative impact, which is very easy to cause Xiao Wang of the local dialect.In the later stage, it is necessary to improve the awareness of local national cultural ecological protection and seek the best balance between cultural protection and economic development

Figure 1 :
Figure 1: Block diagram of spatial evolution of national cultural ecology.

Figure 2 :
Figure 2: Comparison of the changes of national cultural forms in the development of sports tourism.

Figure 3 :
Figure 3: Discrete differential algorithm based on support vector machine to solve the model experimental 1 results.

Figure 4 :
Figure 4: Discrete differential algorithm based on support vector machine to solve the model experimental 2 results.

Figure 5 :
Figure 5: The understanding of local youth and students about the traditional customs and cultural activities of Bulang Nationality before and after the development of Bulang Nationality Sports Tourism.

Figure 6 :
Figure 6: Language use at home before and after sports tourism.
of sports tourism After the development of sports tourism

Figure 7 :
Figure 7: Comparative results of national cultural ecological evaluation in Bulang area before and after sports tourism.

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