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Visi Institut : Menjadi Perguruan Tinggi yang unggul dibidang sains dan teknologi dengan reputasi internasional.

Visi Fakultas : Fakultas yang unggul dibidang aplikasi teknologi dengan reputasi internasional.

YAYASAN PEMBINA POTENSI PEMBANGUNAN INSTITUT SAINS & TEKNOLOGI AKPRIND

FAKULTAS TEKNOLOGI INDUSTRI

Jl. Kalisahak 28 Komplek Balapan Yogyakarta 55222 Telp (0274) 563029 ext 113 Fax (0274) 563846 email: [email protected]

Petikan

SURAT KEPUTUSAN DEKAN FAKULTAS TEKNOLOGI INDUSTRI

INSTITUT SAINS & TEKNOLOGI AKPRIND YOGYAKARTA Nomor : 003 /SK/Dek/FTI/IX/2021

Tentang:

PENUGASAN DOSEN DALAM PENYUSUNAN LUARAN PENELITIAN ATAU PENGABDIAN KEPADA MASYARAKAT PADA SEMESTER GANJIL

TAHUN AKADEMIK 2021/2022

DEKAN FAKULTAS TEKNOLOGI INDUSTRI

MENIMBANG : 1. Bahwa Dosen di Fakultas Teknologi Industri Institut Sains & Teknologi AKPRIND Yogyakarta diwajibkan menyusun luaran penelitian maupun pengabdian kepada masyarakat, yang dapat berupa Publikasi Ilmiah Jurnal atau Seminar serta Kekayaan Intelektual.

2. Bahwa untuk pelaksanaan tugas tersebut perlu diberi penugasan melalui Surat Keputusan Dekan.

MENGINGAT : 1. Undang- undang nomor 20 tahun 2003 tentang Sistem Pendidikan Nasional pasal 20.

2. Undang-undang nomor 12 tahun 2012 tentang Pendidikan Tinggi pasal 45 3. Peraturan Menteri Riset, Teknologi dan Pendidikan Tinggi

(Permenristekdikti) Republik Indonesia nomor 44 tahun 2015 tentang Standar Nasional Pendidikan Tinggi pasal 1.

4. Buku Panduan Dosen Institut Sains & Teknologi AKPRIND Yogyakarta Tahun 2017.

MEMPERHATIKAN : Tugas dan Kewajiban Dosen dalam Pelaksanaan Tri Dharma Perguruan Tinggi.

MEMUTUSKAN

MENETAPKAN : Surat Keputusan Dekan tentang "Penugasan Dosen dalam Penyusunan Luaran Penelitian atau Pengabdian Kepada Masyarakat pada Semester Ganjil Tahun Akademik 2021/2022

Surat Keputusan ini berlaku sejak tanggal ditetapkan dan apabila dikemudian hari ternyata terdapat kekeliruan dalam Surat Keputusan ini, akan dibetulkan sebagaimana mestinya.

Dikeluarkan di : Yogyakarta Pada Tanggal : 6 September 2021 Dekan

Ir. Murni Yuniwati, M.T.

NIK. 88.0661.344.E Petikan disampaikan :

Kepada Yth.

Argaditia Mawadati, S.T., M.Sc.

Dosen FTI-IST AKPRIND Yogyakarta

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I am happy to inform you that your paper [14]

“Sales Pattern Identification for Marketing Strategies Using Data Mining”

has been accepted for presentation at the 2

nd

International Conference on Engineering Science and Technology (virtual conference). Please confirm receipt of this message, and follow instruction for camera ready and payment as mention in icest.id.

I have attached the reviewers' comments, which I hope you will find helpful in revising your paper. Instructions for producing the camera-ready copy, and for preparing a talk for the workshop, appear below. Much of this information, plus the preliminary technical program and registration information, is available via the http://icest.id/

I look forward to seeing you in 15 September for the virtual international conference. Thank you for submitting to ICEST 2021, and please accept our congratulations on your paper's acceptance.

Sincerely,

Ellyawan Arbintarso

Chairman ICEST 2021

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FORMATTING YOUR CAMERA READY PAPER

The papers of ICEST 2021 will be electronically submitted in the Journal of Physics:

Conference Series (tbc). The accepted papers must exactly fulfill the Journal of Physics: Conference Series requirements regarding the final submitted version.

The maximum length is ten (10) pages. Please follow the following steps strictly:

 All papers submitted to the ICEST 2021 must be written in English and formatted in the standard Journal of Physics: Conference Series (A4 size).

Please download the template in Word as a guideline. Failing to conform to the standard format will result in rejection.

 Generate a PDF version of your final paper by using PDF.

 Click on the “New Submissions” menu item at the top of the page; it will produce a list of all your papers on the easychair system.

 Click on the title of the paper that you want to submit. It will take you to the individual paper page that contains all details of the paper.

 Ensure that all author information is stored correctly on Author

Information and matches the information on the PDF file, and click on the

“Submit” button.

 Use the links at the top-right corner for updating information, click on the button to change the information or add files.

More information, please visit http://icest.id/

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Sales Pattern Identification for Marketing Strategies Using Data Mining

Argaditia Mawadati

1, a)

Andrean Emaputra

1, b)

and Kartinasari Ayuhikmatin Sekarjati

1, c)

1Departement of Industrial Engineering, Institut Sains & Teknologi AKPRIND Yogyakarta

a)

Corresponding author: [email protected]

b)

[email protected]

c)

[email protected]

Abstract. The development of the culinary business, such as food stalls, is increasing rapidly. This causes the competition to become even tighter. Food stalls must have targeted and precise strategies to survive and compete. Identifying the customer’s preference is one of the strategies that can increase sales and retain customers. The customer’s preference can be observed through purchase transaction data. Observation of sales transaction data in a simple way does not always get effective results because of the large volume of data processed and the difficulty in finding the association between one menu sales and another. With data mining, this problem can be overcome. In this study, the data mining method used is the Apriori Algorithm. The application of the apriori algorithm helps in forming candidate item combinations that may occur. Thus, it can be seen the relationship between the combination of menus that are sold, whether including the most frequently sold or not. This information can be taken into consideration to determine the next marketing strategies.

INTRODUCTION

The culinary business is growing every year. Data from the Indonesian Creative Economy Agency or BEKRAF (Badan Ekonomi Kreatif Indonesia) states that the culinary business provides one of the largest contributions to the creative economy sector. In fact, in 2018 the Ministry of Industry (Kemenperin) said that the food and beverage sector succeeded in contributing to the national gross domestic product (GDP) to 6.34%, which made the food industry one of the top five largest contributors to GDP in Indonesia (1). So that the competition among culinary businesses becomes more and more competitive over time. To be able to compete, the owner must carry out various strategies to increase sales and retain customers.

To develop strategies that can increase sales and retain customers, the owner needs to be able to identify the consumer’s preferences. To find out consumer preferences, it can be done by checking past sales data. From the sales data, it can be seen which menus are selling the best, the menus that are most often bought together, the menus that are not very popular, and so on. However, merely observing sales transaction data does not always get effective results because of the large volume of data processed and the difficulty in seeing the association between one menu sale and another. With data mining, this problem can be overcome. Data mining is the discovery of the structure of interesting, unexpected, or valuable big data sets (2).

This research was conducted on sales data of Friendzone Cafe which is one of the food stalls located in Kemusuk,

Argomulyo, Sedayu, Bantul. This stall previously sold a penyet menu such as Ayam Penyet, but later changed the

concept to a cafe to expand its target market. The menus sold at this cafe also vary, ranging from fried rice menus,

rice bowls, noodles, to steaks. The owner's decision to change this concept has succeeded in increasing the number

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of visitors to this cafe. However, since the Covid-19 pandemic, cafe sales have started to decline. Sales data processing with an apriori algorithm is expected to be able to find frequent patterns of the menus that are most frequently sold. So that later a marketing strategy can be made from the results of these outputs.

In this study, the data mining method used is the Apriori Algorithm. The application of the apriori algorithm helps in forming candidate combinations of items that may occur. So that it can be seen the relationship between the combinations of menus sold, whether they are the most frequently sold or not. This information can be taken into consideration to determine the next marketing strategy.

The use of data mining on consumer buying patterns is most commonly applied to shoppers in supermarkets (3)(4)(5). One of them is research to detect products that consumers often buy simultaneously using the apriori algorithm as a basis for decisions in determining the placement of goods in areas that are close to each other according to consumer behavior in buying goods simultaneously (6). Other studies use this consumer buying pattern as support for managers' decisions in managing company activities (7). In addition to supermarkets, data mining can also be applied to the sale of other products, such as medical field (8)(9)(10)(11), determining the most desirable clothing brands in fashion models (12)(13)(14), agriculture (15)(16), etc.

METHOD

The method used in this research is data mining with an apriori algorithm. Where the apriori algorithm is included in the type of association rules in data mining. Association analysis or association rule mining is a data mining technique to find associative rules between a combination of items (17). In particular, one of the stages of association analysis that has attracted the attention of many researchers to produce efficient algorithms is high-frequency pattern analysis (frequent pattern mining). The importance of an associative rule can be determined by two parameters, namely support and confidence. Support (support value) is the percentage of the combination of these items in the database. Meanwhile, confidence (certainty value) is the strength of the relationship between items in the association rules. The basic methodology of association analysis is divided into two stages, namely determining high-frequency pattern analysis and forming association rules.

The first stage is high-frequency pattern analysis. At this stage, look for a combination of items that meet the minimum requirements of the support value in the database. The results obtained from this stage will be called Support. Support can be an item set, it can also be a combination of several itemsets. The support value of an item can be found with the following formula:

𝑆𝑢𝑝𝑝𝑜𝑟𝑡 (𝐴) =𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑡𝑟𝑎𝑛𝑠𝑎𝑐𝑡𝑖𝑜𝑛 𝑐𝑜𝑛𝑡𝑎𝑖𝑛 𝑖𝑡𝑒𝑚 𝐴 𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑡𝑟𝑎𝑛𝑠𝑎𝑐𝑡𝑖𝑜𝑛

Meanwhile, to find support for two items, it is obtained from the following formula:

𝑆𝑢𝑝𝑝𝑜𝑟𝑡 (𝐴 → 𝐵) =𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑡𝑟𝑎𝑛𝑠𝑎𝑐𝑡𝑖𝑜𝑛 𝑐𝑜𝑛𝑡𝑎𝑖𝑛 𝑖𝑡𝑒𝑚 𝐴 𝑎𝑛𝑑 𝐵 𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑡𝑟𝑎𝑛𝑠𝑎𝑐𝑡𝑖𝑜𝑛

After all the high-frequency patterns are found, the next step is to look for association rules which we then call Confidence. The confidence value of P (B|A) has a rule meaning. If A then B, it can be obtained by the formula:

𝐶𝑜𝑛𝑓𝑖𝑑𝑒𝑛𝑐𝑒 = 𝑃(𝐵|𝐴) =𝑆𝑢𝑝𝑝𝑜𝑟𝑡 (𝐴 → 𝐵) 𝑆𝑢𝑝𝑝𝑜𝑟𝑡 𝐴

The first step in this research is to collect sales data from the Friendzone Mania Cafe. The data in the form of

receipts is selected and inputted into an excel file. The attributes used from the receipt data are the date of the

transaction, the name of the menu purchased, and the number of the menu purchased. After obtaining the dataset

from the sales transaction data, then look for the support value for one item set and a combination of 2 itemsets. The

search is carried out only for up to 2 itemsets because it will be used to make recommendations for package menu

combinations. Consists of one food menu and one drink menu. The last stage is to find the association rules. From

the confidence value obtained, then selected which has a value > 50%. This combination later became the package

menu recommendation.

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RESULTS AND DISCUSSION

The data used in this study is the sales data of the Friendzone Mania Cafe from January to March 2020. In this cafe, there are 62 food and beverage menus. However, for research purposes, there is one menu that is not used, namely the water drink menu. This is done with consideration because the purpose of this research is to plan a menu that can be used as the basis for a marketing strategy. While the water menu is not suitable to be included in the marketing strategy.

Itemset Formation

At this stage of forming the itemset, the aim is to capture the best-selling menus. The condition for selecting the best-selling menu is a menu that meets the minimum amount of 5% support. How to calculate the minimum support is to divide the number of transactions containing menu A divided by the total transactions. For example, the calculation is as follows:

𝑆𝑢𝑝𝑝𝑜𝑟𝑡 (𝐶ℎ𝑖𝑐𝑘𝑒𝑛 𝐹𝑟𝑖𝑒𝑑 𝑅𝑖𝑐𝑒) =𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑡𝑟𝑎𝑛𝑠𝑎𝑐𝑡𝑖𝑜𝑛𝑠 𝑐𝑜𝑛𝑡𝑎𝑖𝑛𝑖𝑛𝑔 𝑐ℎ𝑖𝑐𝑘𝑒𝑛 𝑓𝑟𝑖𝑒𝑑 𝑟𝑖𝑐𝑒

𝑡𝑜𝑡𝑎𝑙 𝑡𝑟𝑎𝑛𝑠𝑎𝑐𝑡𝑖𝑜𝑛𝑠 × 100%

𝑆𝑢𝑝𝑝𝑜𝑟𝑡 (𝐶ℎ𝑖𝑐𝑘𝑒𝑛 𝐹𝑟𝑖𝑒𝑑 𝑅𝑖𝑐𝑒) = 36

207× 100% = 17%

The calculation is carried out on the entire menu, then the results of the calculation of the support value for the entire menu are obtained, as can be seen in table 1.

TABLE 1

.

Recap of Support Value Calculation Results

Number Menu Qty Support (%)

1 Chicken Fried Rice 36 17%

2 Jumbo chicken fried rice 3 1%

3 Shrimp fried rice 6 3%

207 Blueberry squash 2 1%

From the results of the calculation of the support value, it can be concluded that not all menus meet the minimum support value. For example, as can be seen in table 1, the jumbo chicken fried rice menu only has a support value of 1% and so on. A recap of the menu that meets the minimum support value can be seen in Table 2

TABLE 2. Recap Menu 1-itemsets Meets Support

No Menu Name S upport

(%)

No Menu Name Support

(%)

1 Chicken fried rice 17% 17 chicken cordon bleu 8%

2 seafood fried rice 23% 18 Crispy Mushroom Steak 6%

3 jumbo seafood fried rice 5% 19 Crispy Beef Steak 7%

4 Jumbo Sausage Fried Rice 6% 20 french fries 9%

5 white rice 13% 21 ur crispy jam 9%

6 plain fried noodles 6% 22 pray 10%

7 seafood fried noodles 5% 23 fried chicken 6%

8 boiled noodles bia sa 5% 24 ice tea 17%

9 ordinary kwetiau 17% 25 t e h hot 16%

10 seafood kwetiau 12% 26 hot orange 12%

11 fried chapcay 10% 27 Orange juice 14%

12 chapcay gravy 5% 28 lemon tea ice 6%

13 crispy prawns 9% 29 guava juice 6%

14 crispy squid 8% 30 Mango juice 8%

15 sweet and sour squid 12% 31 water 8%

16 Crispy Chicken Steak 24%

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Combination of 2 Itemset

From the menu that meets the minimum support as shown in table 2, a list of the combinations of the two menus in the sales transaction is made. This result is used to calculate the frequent 2 itemsets, by dividing the transactions containing menus A and B divided by the total transactions. Just like the previous stage, at this stage, the menu combinations that meet the minimum 30% support are also selected. The calculation results can be seen in Table 3.

TABLE 3. Recap Menu 2 -Itemset Meets S upport

Number Menu Name Support t (%)

1 seafood fried rice, crispy chicken steak 5%

2 N ation fried seafood , Ice oranges 4%

3 Crispy Chicken Steak , white rice 7%

5 Crispy Chicken Steak , Iced tea 5%

6 Crispy Chicken Steak , hot orange 5%

7 Crispy Chicken Steak , orange ice 5%

8 Crispy Chick en Steak , water 5%

9 Crispy beef steak , iced tea 4%

\In the next stage, the L2 cross item process is again carried out to form a candidate itemset containing 3 menus, then the support is calculated again. However, none of the itemset combinations of these 3 menus meets the minimum support requirements. So that the formation of 4-itemset cannot be done. Then the iteration process of the a priori algorithm stops here

Formation of Association Rules

After all the high-frequency patterns are found, from all the itemsets formed, then the separation is carried out into antecedent and consequent. It aims to determine all possible association rules that can be formed. The results of the recap of the results of the calculation of confidence can be seen in table 4.

TABLE 4. Confidence Value Calculation Recap

Number Menu Name Confidence

1 seafood fried rice => crispy chicken steak 22%

2 crispy chicken steak => seafood fried rice 21%

3 Seafood fried rice => orange ice 17%

5 orange juice => seafood fried rice 29%

6 white rice => crispy chicken steak 29%

7 crispy chicken steak => white rice 54%

8 crispy chicken steak => iced tea 21%

9 es the => crispy chicken steak 29%

10 crispy chicken steak => hot orange 21%

11 hot orange => crispy chicken steak 42%

12 crispy chicken steak => orange ice 21%

13 ice orange => crispy chicken steak 36%

14 crispy chicken steak => water 63%

15 water => crispy chicken steak 21%

16 crispy beef steak => iced tea 57%

The specified minimum confidence is 50%, so items that have a confidence value of less than 50% are eliminated.

So that the applicable association rules can be seen in table 5.

TABLE 5. Association Rules Apply

Number Menu Name Confidence

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1 crispy chicken steak => white rice 54%

2 crispy chicken steak => water 63%

3 crispy beef steak => iced tea 57%

So from the association rules data shown in table 5, it can be concluded that if a buyer buys crispy chicken steak, 54% of buyers will also buy white rice. If buyers buy crispy chicken steak, 63% of buyers will buy water, and 57%

will choose iced tea as their drink menu. From this data, the owner can make package menus as a marketing strategy to increase sales of menus that are selling well to customers. Package menus can consist of a combination of two menus that are proven to be purchased together with crispy chicken steak with white rice, crispy chicken steak with iced tea, and chicken steak with water.

Another strategy that can be done besides increasing sales of menus that are already selling well is to create special packages consisting of a combination of menus that are selling well and additional menus that are not selling well.

This aims to boost sales of menus that are not selling well. The determination of menu combinations is made by considering the suitability of the combination between one menu and another. For example, combining crispy chicken steak with iced tea and french fries, or combining crispy chicken steak with iced tea and sausage, and so on.

Another strategy that can be done is to change the menus that are not in demand with the menus that are currently trending. Because the Friendzone Mania Cafe itself carries the theme of a modern food stall with a market share of families and young people, the drink menu can be changed or added to the drink menu that is currently trending.

Like the contemporary coffee menu that combines coffee with milk and additional flavors. Or you can also make a menu of variations of Thai Tea and Boba. This can be considered by the owner because the location of the Friendzone Cafe is quite close to Mercu Buana University Yogyakarta and several junior high schools, high schools, and vocational schools. So that these contemporary menus can attract student buyers or students who are in junior high and high school.

CONCLUSION

From the results of the previous description of eating, it can be concluded that the use of the Apriori Algorithm in purchase transaction data can show the pattern of menu combinations that are most in-demand by food stall buyers. The results of the menu combination pattern can then be used as the basis for making package menus to further increase sales of the best-selling menus and boost sales of menus that are less in demand. Another marketing strategy that can be done to attract more visitors or buyers at food stalls is to add menus that are trending among young people. Because the location of the food stalls is quite close to campus and several schools.

In further research, it can be developed by making applications that can show patterns of association rules. So that when the owner inputs transaction data, recommendations for menu combinations can immediately appear that are potential to be used as marketing strategies. This application can be used as an evaluation material to detect menus that are still selling and those that are not selling so that the next latest strategy can be made

ACKNOWLEDGMENTS

The authors gratefully express their gratitude for the financial support provided by the Institute for Education and Community Development (LPPM) IST AKPRIND Yogyakarta.

REFERENCES

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Www.Ugm.Ac.Id. 2019. p. 1. Available from: https://www.ugm.ac.id/id/berita/18389-industri-kuliner-jadi- penopang-terbesar-perekonomian-kreatif-indonesia

2. Hand DJ. Principles of Data Mining. Drug Saf [Internet]. 2007;30(7):621–2. Available from:

http://link.springer.com/10.2165/00002018-200730070-00010

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5. Gupta S, Mamtora R. A Survey on Association Rule Mining in Market Basket Analysis. Int J Inf Comput Technol [Internet]. 2014;4(4):409–14. Available from: http://www.irphouse.com/ijict.htm

6. Santoso H, Hariyadi IP, Prayitno. Data Mining Analisa Pola Pembelian Produk. Tek Inform [Internet].

2016;(1):19–24. Available from:

http://ojs.amikom.ac.id/index.php/semnasteknomedia/article/download/1267/1200

7. Rodiyansyah S. Algoritma Apriori untuk Analisis Keranjang Belanja pada Data Transaksi Penjualan.

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11. Xing Y, Wang J, Zhao Z, Gao A. Combination Data Mining Methods with New Medical Data to Predicting Outcome of Coronary Heart Disease. In: 2007 International Conference on Convergence Information Technology (ICCIT 2007) [Internet]. IEEE; 2007. p. 868–72. Available from:

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12. Zhao L, Min C. The Rise of Fashion Informatics: A Case of Data-Mining-Based Social Network Analysis in Fashion. Cloth Text Res J [Internet]. 2019 Apr 30;37(2):87–102. Available from:

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1 p.

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Institut Sains & Teknologi Akprind Yogyakarta

Universitas Negeri Semarang

Universitas Lampung Universitas Malahayati

Universitas Batanghari

Universitas Abulyatama

https://www.teahub.io/viewwp/iixRbib_illustration-of-green-and-red-floral-art-cdr/

Developing Research to Create Prime Resources in the Industrial Revolution Era 4.0

The 2 International Conference on Engineering Science and Technology (ICEST 2021)

nd

BOOK PROGRAMME

Yogyakarta-Indonesia, September 15-16, 2021

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Developing Research to Create Prime Resources in the Industrial Revolution Era 4.0

The 2nd International Conference on Engineering Science and Technology (ICEST) 2021

BOOK PROGRAMME

September 15 & 16 - IST AKPRIND Yogyakarta, Indonesia

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2

Preface

Distinguished Guests and Participants,

Ladies and Gentlemen, Brothers and Sisters, and Colleagues from Universities Assalamu’alaikum Warahmatullahi Wabarakatuh

It gives me pleasure to welcome you to The 2nd International Conference on Engineering Science and Technology virtually, where academicians, professionals, and governments in the engineering fields present the latest research finding and describe science and technology in related areas.

ICEST is organized by a consortium of seven universities, namely Malahayati University (Lampung), Batanghari University (Jambi), IST AKPRIND (Yogyakarta), UNNES (Semarang), Lampung University (Lampung), Abulyatama University (Aceh) and Universiti Malaysia Pahang (Malaysia). Today, IST AKPRIND will host ICEST 2021 virtually.

This conference will focus on the theme of “Developing Research to Create Prime Resources in the Industrial Revolution Era 4.0” and is dedicated to bringing together researchers and practitioners from all over the world. The multidisciplinary theme of the conference provides an excellent forum for engineers, scientists, specifiers, researchers, academics, practitioners, and professionals to connect and share knowledge and learn about collaboration in research to create prime resources in the industrial revolution era 4.0.

Ladies and Gentlemen,

Conferences such as this provide a valuable opportunity for research scientists, industry specialists, and decision- makers to share experiences. This conference was attended by 39 (thirty-nine) presenters from Indonesia, Taiwan, Timor Leste, and of course, Malaysia, also attended by more than 100 participants. Thank you for joining us today.

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I am grateful to many experts who have joined to share their knowledge this day. I also welcome the many representatives of governments, industry associations, and organizations who have joined us.

I am sure you will have fruitful and rewarding exchanges today. I wish you every success with this important conference, and I look forward to learning about the outcome.

Thank you.

Wassalamu’alaikum warahmatullahi wabarakatuh

Dr. Ellyawan S Arbintarso General Chair

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4

Rector Speech

Your Excellency,

Professor Ron Harris, Brigham Young University, USA

Professor Rizalman Mamat, Univeristi Malaysia Pahang, Malaysia

Professor Chuen-Jinn Tsai, National Yang Ming Chiao-Tung University, Taiwan Professor Andika Widya Pramono, Indonesian’s Institute of Science, Indonesia Honourable Guests,

Ladies and Gentlemen, Bapak-ibu

Assalamu’alaikum Warahmatullahi Wabarakatuh Good morning Selamat Pagi and Sugeng Enjang

On behalf of the Institut Sains & Teknologi AKPRIND, I am delighted to join this Virtual Conference, despite the challenge posed by the Covid 19 pandemic. I wish to convey my sincere appreciation to ICEST 2021 committee for making this event happen today. I would also like to thank all the distinguished panelists and moderators for taking the time to participate in today's conference from near and far.

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5

This year's conference focused on Developing Research to Create Prime Resources in the Industrial Revolution Era 4.0 will address subjects in the physical sciences, including physics, math, chemistry, material science, and engineering.

Globalization of education and the 4.0 Industrial Revolution presence are inevitable and must be faced by higher education institutions. This event challenges us to deal with global change and heightened competition in many aspects, including disruptive phenomena in the higher education model.

Research activities are focused on developing knowledge and research that can make a direct contribution to society. Scientific research will produce results published in international/national journals and can be disseminated in international discussion forums. From the other side, the research results are also expected to assist in determining government/regulator policies and improve sound educating practices.

Ladies and Gentlemen,

The digitalization of society creates new professions and new competency areas for established professions, which increases demands on educational development to manage these. At the same time that the academic environment is being digitalized and offers new opportunities, new digital tools also place new demands on educational development. The new generation of students entering higher education has a different approach to digital solutions and likely also another expectation that educational environments have a high degree of digital sophistication.

These are questions that require activity and development and where educational development helps manage the pressures for change from digitalization, lifelong learning, distance education, and other factors. Academic growth is often dealt with concerning other issues, and I am sure that each higher education institution has its way of dealing with these.

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Research universities are core components of any country's economic, political and social development systems.

If knowledge for augmenting productive power is necessary, research is the fundamental process, and its institutionalization will produce researchers and further research.

I note that a workshop preceded this conference to train and mentor young researchers in ICEST. The workshop is really commendable, and I want to encourage the consortium ICEST to continue with this annual conference. I hope that this series of annual conferences will help create a solid continental network of researchers that will begin to have a life of its own.

I wish you an engaging and successful conference. Let's get started, and thank you again for joining us. Terima kasih.

Wassalamu’alaikum warahmatullahi wabarakatuh

Dr. Edhy Sutanta Rector

Institut Sains & Teknologi AKPRIND Yogyakarta

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Committee

Advisor

Prof. Dr. Rizalman Mamat (UMP, Malaysia)

Prof. Dr. Ir. Sudarsono, MT (IST AKPRIND, Indonesia)

Assoc. Prof. Dr. Edhy Sutanta, MKom (IST AKPRIND, Indonesia) Assoc. Prof. Dr. Ir. Amir Hamzah, MT (IST AKPRIND, Indonesia) Assoc. Prof. Dr. Ir. Toto Rusianto, MT (IST AKPRIND, Indonesia) Ir. R. Agung Efriyo Hadi, M.Sc., Ph.D (UNAYA, Indonesia) General Chair

Assoc. Prof. Dr. Ellyawan Setyo Arbintarso (IST AKPRIND, Indonesia) Vice General Chair

Dr. Muchlis (IST AKPRIND, Indonesia) Ir. Yan Juansyah, DEA (UNMALA, Indonesia) Treasure & Finance

Ir. Murni Yuniwati, M.T. (IST AKPRIND, Indonesia) Secretariat

M Andang Novianta, S.T., M.T. (IST AKPRIND, Indonesia)

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Publication

Assoc. Prof. Dr. Mohd Shahrir bin Mohd Sani (UMP, Malaysia) Dr. Suwanto Raharjo, S.Si, M.Kom. (IST AKPRIND, Indonesia)

Assoc. Prof. Dr. Anak Agung Putu Susastriawan (IST AKPRIND, Indonesia) Assoc. Prof. Dr. Sri Mulyaningsih (IST AKPRIND, Indonesia)

Assoc. Prof. Dr. Emy Setyaningsih (IST AKPRIND, Indonesia) Dr. Januar Parlaungan Siregar (UMP, Malaysia)

Dr. Samuel Kristiyana, M.T. (IST AKPRIND, Indonesia) Promotion

Catur Iswahyudi, S.Kom., S.E, M.Cs. (IST AKPRIND, Indonesia) Dr. Eng. Rina Febriana, S.T., M.T. (UNMALA, Indonesia)

Assoc. Prof. Dr. Ir. Fakhrul Rozi Yamali, ME (UNBARI, Indonesia) Assoc. Prof. Dr. Lusmeilia Afriani, DEA (UNILA, Indonesia) Sita Nurmasitah, M.Hum (UNNES, Indonesia)

Cut Rahmawati, M.T. (UNAYA, Indonesia) Website

Erma Susanti, S.Kom., M.Cs. (IST AKPRIND, Indonesia) Ruzan Fikra, S.Kom., MBA. (IST AKPRIND, Indonesia) Event

Erna Kumalasari Nurnawati, S.T., M.T. (IST AKPRIND, Indonesia) Eska Almuntaha, S.E., M.Sc., Ak.CA. (IST AKPRIND, Indonesia) Beny Firman, S.T., M.Eng. (IST AKPRIND, Indonesia)

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International Programme Committee

Agustinus Purna Irawan (Universitas Tarumanagara, Jakarta, Indonesia) Andika Widya Pramono (Indonesian’s Institute of Sciences, Jakarta, Indonesia) Arbi Haza Nasution (Universitas Islam Riau, Pekanbaru, Indonesia)

Benny Hidayat (Universitas Andalas, Padang, Indonesia)

Cahyo Mustiko Okta Muvianto (Universitas Maratam, Mataram, Indonesia)

Cahyorini Kusumawardani (Universitas Negeri Yogyakarta, Yogyakarta, Indonesia) Chuen-Jinn Tsai (National Yang Ming Chiao Tung University, Taipe, Taiwan) Cut Rahmawati (Universitas Abulyatama, Banda Aceh, Indonesia)

Denny Vitasari (Universitas Muhammadiyah Surakarta, Surakarta, Indonesia) Dewi Fitria (Universitas Riau, Pekanbaru, Indonesia)

Eko Setiawan (Universitas Muhammadiyah Surakarta, Surakarta, Indonesia) Evizal Abdul Kadir (Universitas Islam Riau, Pekanbaru, Indonesia)

Ezri Hayat (Teesside University, Middlesbrough, UK)

Hari Agung Yuniarto (Universitas Gadjah Mada, Yogyakarta, Indonesia) Ihwan Ghazali (Univeristi Teknikal Malaysia Melaka, Melaka, Malaysia) Januar P Siregar (Universiti Malaysia Pahang, Pekan, Malaysia)

Mohammad Sapari Dwi Hadian (Universitas Padjajaran, Bandung, Indonesia) Mohd Shahrir Mohd Sani (Universiti Malaysia Pahang, Pekan, Malaysia)

Muhammad Norhisham Abdul Rani (Universiti Teknologi Mara, Shah Alam, Malaysia) Nurgiyatna (Universitas Muhammadiyah Surakarta, Surakarta, Indonesia)

Nuryono (Universitas Gadjah Mada, Yogyakarta, Indonesia) Purwanto (Universitas Diponegoro, Semarang, Indonesia) Rizalman Mamat (Universiti Malaysia Pahang, Pekan, Malaysia) Ron Harris (Birgham Young University, Provo, USA)

Taufika Ophiyandri (Universitas Andalas, Padang, Indonesia)

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Tri Widodo Besar Riyadi (Universitas Muhammadiyah Surakarta, Surakarta, Indonesia) Yuli Panca Asmara (INTI International University, Nilai, Malaysia)

Zahrul Mufrodi (Universitas Ahmad Dahlan, Yogyakarta, Indonesia) Zufialdi Zakaria (Universitas Padjajaran, Bandung, Indonesia)

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Keynote Material

Nu Keynote Speaker Title

1. Prof. Dr. Ron A Harris

2. Prof. Dr. Rizalman Mamat Renewable Fuel for Future Transportation Engines 3. Prof. Dr. Andika Widya Pramono Some Updates In Materials Science And Engineering To

Create Prime Resources In The Industrial Revolution Era 4.0 4. Prof. Dr. Chuen-Jinn Tsai Micro-Pollution Control

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Zoom Access 2

nd

ICEST 2021

Zoom id for 2

nd

ICEST 2021 Pleno Session:

Meeting id : 922 6953 6333 Passcode: 2ndiceeest

Parallel session will use breakout room. The presenter can enter the breakout room according to the specified room. Please check the author code and your room in the list

provided in this Book Programme. Participants can choose the room according to your

interest.

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Presenters Guidelines

✓ Please Rename your profile name by your Author Code_your name. Ex: R1_004 Ajeng Lestari.

✓ Sessions will be opened by the host 10 minutes prior to the starting time, to allow every participant to join on time. No sessions will start before the host opens the session. All presenters are expected to join the zoom meeting conference 10 minutes before the event starts.

✓ The presenters prepares a presentation script in PPT format a maximum of 15 pages. You are allocated a presentation for 10 minutes. If you are presenting live, you will “Share” your screen or document.Otherwise, the room PIC can set this up on your behalf. Please ensure that your webcam is on so that attendees can view you during your presentation. Discussion sessions will be held per two presenters for 10 minutes. Please prepare your presentation documents, so that the presentation session runs smoothly.

✓ Please follow the rules given by the moderator during the meeting.

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Participants Guidlines

✓ Please Rename your profile name by P_your name. Ex: P_Vera Nurul.

✓ All participants will enter the session in Mute mode (to avoid interruptions of presentations that may be occurring). The hosts will enable the sound as soon as it is fit. The hosts will be monitoring the sessions, so if you have any technical question during the session, you can send chat messages to them, so they can assist you.

✓ This event consist two session, name Pleno Session (plenary) and parallel session. Parallel session contain research presentation based on field are. You can choose the room according to your interest.

✓ Each session will have a chair that will manage times and moderate questions and answers.

✓ Please raise your hand if you want to pose a question to the presenter (if you prefer, you can pose a question by sending a chat message directly to the presenter).

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Conference Programs

Date : 15th September 2021

Time (GMT+7) Activities Official

07.30 - 08.30 Preparation and Attendance Registration Authors and Participants entering to Virtual Conference 2nd ICEST 2021

Committee

08.30 - 08.45 Opening Session Master of Ceremony

08.45 - 09.00 Chairman Committee Greeting Chairman Committe 09.00 - 09.15 Rector of Institut Sains & Teknologi AKPRIND

Greeting

Rector 09.15 – 09.45 Keynote Speech 1:

Prof. Dr. Ron A Harris

Neotectonics Department of Geological Sciences, Brigham Young University, USA.

Moderator:

Dr. Mohd Shahrir Mohd Sani PIC:

Erna Kumalasari Nurnawati 09.50 – 10.20 Keynote Speech 2:

Prof. Dr. Rizalman Mamat

Mechanical and Manufacture Engineering College, Universiti Malaysia Pahang, Malaysia.

10.20 – 10.50 Discussion session 1

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11.00 – 11.30 Keynote Speech 3:

Prof. Dr. Andika Widya Pramono Superconductor Materials Lembaga Ilmu

Pengetahuan Indonesia, Indonesia. Moderator:

Rahayu Khasanah, S.T., M.Eng PIC:

Erna Kumalasari Nurnawati 11.30 – 12.00 Keynote Speech 4:

Prof. Dr. Chuen-Jinn Tsai

Micro-pollution Control Institute of Environmental Engineering, National Yang Ming Chiao Tung University, Taiwan.

12.00 – 12.30 Discussion session 2

12.30 - 13.00 Preparation for Parallel Session Committee

13.00 – 16.00 Parallel Session Committee

16.00 – 16.15 Closing Ceremony MC

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Breaking Room 1

PIC : Bayu Hendra Permana, S.E Moderator : Dewi Wahyuningtyas, S.T., M.Eng

Author

Code Authors Title

R1_004 Ajeng Lestari, Zainus Salimin, Sukirman Sukirman, Anjanetta Pasha, Miqdam Humami, Muhammad Putra and Ikrom Amar

Pb (II) and Cu (II) Adsorption Performance Using Magnetic Modified Watermelon Rind as a Low Cost Adsorbent

R1_013 Muhammad Ansori, Wahyuningsih Wahyuningsih, Siti Fathonah, Rosidah Rosidah and Nur Aini Halimah Yulianti

Characteristics of Parijoto Fruit as a Preservative Of Dodol Food

R1_021 Octavianti Paramita and Fitriyani Irfanti

Nutritional Characteristics Of Sagon Cake With Breadnut Seed (Artocarpus Communis G.Forst) Flour By Variations Of Flouring Process

R1_022 Atika Atika, Endah Rinasti, Wulansari Prasetyaningtyas, Musdalifah and Siti Nurrohmah

Utilization of Lorotis Weed (Aeschynomene Indica) as Natural Textile Dyes: Soil Pollution Prevention in the Use of Pesticides

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R1_023 Wulansari Prasetyaningtyas and Fenny Fitria Kartika

Colorfastness of Batik Dyed with Dyes from Banana Hump

R1_028 Roudlotus Sholikhah, Widowati Widowati and Sita Nurmasitah

The Impact Of The Use Of Different Mordan Types On The Ecoprint Dyeing Using Secang Dye On Primisima Fabric

Breaking Room 2

PIC : Eska Almuntaha, S.E., M.Sc.,Ak.CA.

Moderator : Dr. Benny Hidayat Author

Code Authors Title

R2_016 Rina Febrina, Lusmeilia Afriani and Mira Wisman

Integration of Geospatial Technology with Evacuation Pathway Planning for Tsunami Mitigation

R2_001 T Listyani Ra Groundwater Aggressiveness in Jonggrangan Karst, West Progo Area

R2_007 Mesias Citra Dewi Geomorphological Quantitative Analysis for Interpretation of Geological Structures as the Basis for Decision Making on Coal Exploration Activities in East Kutai Regency, East Borneo Province

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R2_031 Elvira Handayani, Kiki Rizky Amalia, Fakhrul Rozi Yamali, Anisa Ramadona

Analysis Of The Causes Of The Difference In Financing Prices On Road Improvement In Tanjung Jabung Timur Regency

R2_032 Kiki Rizky Amalia, Elvira Handayani, Annisaa Dwiretnani, Rudi Harianto

Pricing Strategy For Project Tender By Contractor

R2_033 Amsori Muhammad Das, Ari Setiawan, Wari Dony

Assessment of How Satisfaction with Service Quality and Service Value Affect Passenger’s Loyalty to the MRT-SBK Service In Greater Kuala Lumpur

R2_34 Ari Setiawan, Azwarman Azwarman, Rioni Rizki Aldiansyah, Riki Saputra

Analysis of The Degree of Saturation Due to Influence Vehicle Speed in Office Area in New Normal Condition (Case Study:

Jalan H. Agus Salim Jambi City)

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Breaking Room 3

PIC : Ruzan Fikra, S.Kom.,M.BA Moderator : Dr. Suwanto Raharjo,S.Si,M.Kom

Author

Code Authors Title

R3_015 Budhi Anto, Amir Hamzah, Dahliyusmanto, Yonni Safadro and Fadly Arif

Sliding Gate Opener System with Smartphone Control Using Bluetooth Connection

R3_025 Samuel Kristiyana and Gatot Santosa

Design Of Heart Rate Monitoring System Using Mobile Telecardiac And Showing The Patient’s Position R3_037 Venny Yusiana, Hendi Matalata,

Safriyudin Safriyudin and Amrih Apike

Gate Driver Design with Phase Shift SPWM technique on H- Bridge Multilevel Inverter topology

R3_038 Fadli Eka Yandra, Venny Yusiana and Amrih Apike

Use of the OriginPro Application for Lightning Wave Spectrum Analysis

R3_012 Noeryanti Noeryanti, Noviana Pratiwi, Sinum Fariasi and Erna Kumalasari Nurnawati

Comparison of Fuzzy Mamdani and Backpropagation Methods to predict Yogyakarta Human Development Index

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R3_018 Erna Kumalasari Nurnawati, Juniana Husna,Yusra Yusra and Ismail Setiawan

Implementation of Analytical Hierarchy Process Method with Eigenvectors Efficiency for Culinary Object Selection in Aceh

R3_024 Uning Lestari, Catur Iswahyudi and Beny Firman

Internet of Things on Smart Parking Systems Based on Vehicle Loop Detector

R3_003 Muhammad Mukhlisin, Azizah Wismaningsih, Hany Windri Astuti, Amin Suharjono and Sri Anggraini Kadiran

Ground Water Flow Monitoring Systems Using Permeability Tank Experiment

Breaking Room 4

PIC : Ir. Muhammad Yusuf, M.T.

Moderator : Angge Dhevi Warisaura, S.T. M.Eng Author

Code Authors Title

R4_011 Muchlis Muchlis, Sri Hastutiningrum and William Sutrisna

Optimization Waste Disposal Route Using GIS in Yogyakarta Municipality

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R4_020 Rani Ergantara, Dewi Fadilasari and Marcelly Wardana

Analysis Of Green Open Space Adequacy Malahayati University Area In Absorbing Carbon Dioxide Emissions R4_027 Rani Ergantara, Destrangga

Maulana, Dewi Fadilasari and Marcelly Wardana

The Study Of Carbon Dioxide Emissions From Motor Vehicles At Malahayati University

R4_035 Anggrika Riyanti, Hadrah Hadrah, Agung Gusti Khairi Azwar

Investigation of Carbon Footprint from School Activities: A Case Study in Jambi, Indonesia

R4_036 Monik Kasman, Peppy Herawati, Lucya Handayani

Adsorption of Hg(II) from Aqueous Solution by Water Treatment Plant Sludge

R4_041 Sepridawati Siregar, Edo Riyandani and Nora Idiawati

Association of Particulate Matter Exposure and Lung Cancer Mortality in the Workers. A Systematic Review and Meta- Analysis.

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Breaking Room 5

PIC : Argaditia Mawadati, S.T., M.Sc

Moderator : Dr. Anak Agung Putu Susastriawan, S.T., M.Tech Author

Code Authors Title

R5_002 Fungky Dyan Pertiwi, Arif Wahjudi, Wawan Aries Widodo and Setyo Hariyadi SP

The Effect of Slat Clearance and Flap on the Aerodynamic Performance of the NACA 43018 Wing in the Landing Process

R5_009 Hendrix Noviayanto Firmansayah and Samsudin Anis

Preliminary Design of Composite Safety Shoes Toe Cap Using Finite Element Method

R5_019 Adhi Kusumastuti, Samsudin Anis and Nur Qudus

Fluid Flow Visualization and Parameter Evaluation of Vegetable Oil/ Water Mixture in Taylor-Couette Column R5_008 Agus Hindarto Wibowo,

Windyaning Ustyannie, Argaditia Mawadati and Syauqi Rahman Wibowo

Quality Level Measurement Analysis Using Six Sigma DMAIC Method

R5_014 Argaditia Mawadati, Andrean Emaputra and Kartinasari Ayuhikmatin Sekarjati

Sales Pattern Identification for Marketing Strategies Using Data Mining

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R5_026 Marcelly Wardana, Ahmad Sidiq and Nanda Ari Setiawan

Working Posture Analysis On Press Tile Using Rapid Upper Limb Assessment

Breaking Room 6

PIC : Erma Susanti,S.Kom., M.Cs Moderator : Ir. Saiful Huda, M.T., M.E.

Author

Code Authors Title

R6_029 Ria Zulfiati, Fakhrul Rozi Yamali Mechanical Properties of Geopolymer Mortar Based on Fly Ash with Polypropylene Fiber

R6_030 Wari Doni, Ria Zulfiati, Amsori Muhammad Das

Compressive Strength Geopolymer Mortar with Fine Aggregate Soaked in NaOH Solution

R6_005 Rusnaldy Rusnaldy, Susilo Adi Widyanto, Natalino Fonseca D. S.

Guterres and Achmad Widodo

The Effect Of Chill Used In The Ductile Iron Casting Process To Gear Manufacture Application On The Wear Resistance

R6_039 Lilis Kistriyani, Muhammad Khafidh, Donny Suryawan and Rifky Ismail

Physical Characteristic of Polymer Formulations For Phrosthetic Foot Materials : Comparison of Natural Rubber and Ethylene Vinyl Acetate

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Paper ID : 8

Title : Quality Level Measurement Analysis Using Six Sigma DMAIC Method

Author(s) : Agus Hindarto Wibowo, Windyaning Ustyannie, Argaditia Mawadati, Syauqi Rahman Wibowo

Abstract :

CV Sinar Albasia Utama is an industry where wood is used as the raw material, and their product is barecore which can reach ± 426,970 production units per year. CV Sinar Albisia Utama always does the best to satisfy the customers’ needs and strives to produce high quality products, since the products are exported to China and Taiwan, and they conduct quality improvements continually. In this study, the researchers used Six Sigma method in measuring and processing data, by implementing DMAIC methodological stages, namely Define, Measure, Analyze, Improve, and Control. The Defect Per Million Opportunities (DPMO) value of the products in the last 1 year was 2065.133 with 4 Critical-to-Quality (CTQ), including the unsuitable size which causes the wood to be not tight (60.16%), unsuitable thickness (26.11%), untidy wood cutting (9.92%), and wood is not completely dry so it is getting rotten (3.79%). The results revealed that that the company sigma level is 4.4, or in other words, the company is in a very good and productive condition, and it is able to compete globally.

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Paper ID : 14

Title : Sales Pattern Identification for Marketing Strategies Using Data Mining Author(s) : Argaditia Mawadati, Andrean Emaputra, Kartinasari Ayuhikmatin Sekarjati Abstract :

The development of the culinary business, such as food stalls, is increasing rapidly. This causes the competition to become even tighter. Food stalls must have targeted and precise strategies to survive and compete. Identifying the customer’s preference is one of the strategies that can increase sales and retain customers. The customer’s preference can be observed through purchase transaction data.

Observation of sales transaction data in a simple way does not always get effective results because of the large volume of data processed and the difficulty in finding the association between one menu sales and another. With data mining, this problem can be overcome. In this study, the data mining method used is the Apriori Algorithm. The application of the apriori algorithm helps in forming candidate item combinations that may occur. Thus, it can be seen the relationship between the combination of menus that are sold, whether including the most frequently sold or not. This information can be taken into consideration to determine the next marketing strategies.

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Gambar

TABLE 2. Recap Menu 1-itemsets Meets Support
TABLE 1 .  Recap of Support Value Calculation Results
TABLE 4. Confidence Value Calculation Recap
TABLE 3. Recap Menu 2 -Itemset Meets S upport

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