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All Journal Jurnal Teknik ITS Bulletin of Electrical Engineering and Informatics JUTI: Jurnal Ilmiah Teknologi Informasi Jurnal Ilmiah Kursor Jurnal Ilmiah FIFO Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Sewagati
Santoso, Bagus Jati
Departemen Informatika, Fakultas Teknologi Informasi Dan Komunikasi, Institut Teknologi Sepuluh Nopember Kampus ITS Sukolilo, Surabaya
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Library & Information Science Public Health Social Sciences

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DATA REFINEMENT APPROACH FOR ANSWERING WHY-NOT PROBLEM OVER K-MOST PROMISING PRODUCT (K-MPP) QUERIES Permadi, Vynska Amalia; Ahmad, Tohari; Santoso, Bagus Jati
JUTI: Jurnal Ilmiah Teknologi Informasi Vol 16, No. 2, Juli 2018
Publisher : Department of Informatics, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24068535.v16i2.a754

Abstract

K-Most Promising (K-MPP) product is a strategy for selecting a product that used in the process of determining the most demanded products by consumers. The basic computations used to perform K-MPP are two types of skyline queries: dynamic skyline and reverse skyline. K-MPP selection is done on the application layer, which is the last layer of the OSI model. One of the application layer functions is providing services according to the user's preferences.In the K-MPP implementation, there exists the situation in which the manufacturer may be less satisfied with the query results generated by the database search process (why-not question), so they want to know why the database gives query results that do not match their expectations. For example, manufacturers want to know why a particular data point (unexpected data) appears in the query result set, and why the expected product does not appear as a query result. The next problem is that traditional database systems will not be able to provide data analysis and solution to answer why-not questions preferred by users.To improve the usability of the database system, this study is aiming to answer why-not K-MPP and providing data refinement solutions by considering user feedback, so users can also find out why the result set does not meet their expectations. Moreover, it may help users to understand the result by performing analysis information and data refinement suggestion.
ANSWERING WHY-NOT QUESTIONS ON REVERSE SKYLINE QUERIES OVER INCOMPLETE DATA Santoso, Bagus Jati; Connery, Tosca Yoel
JUTI: Jurnal Ilmiah Teknologi Informasi Vol 17, No. 1, Januari 2019
Publisher : Department of Informatics, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24068535.v17i1.a824

Abstract

        Recently, the development of the query-based preferences has received considerable attention from researchers and data users. One of the most popular preference-based queries is the skyline query, which will give a subset of superior records that are not dominated by any other records. As the developed version of skyline queries, a reverse skyline query rise. This query aims to get information about the query points that make a data or record as the part of result of their skyline query.     Furthermore, data-oriented IT development requires scientists to be able to process data in all conditions. In the real world, there exist incomplete multidimensional data, both because of damage, loss, and privacy. In order to increase the usability over a data set, this study will discuss one of the problems in processing reverse skyline queries over incomplete data, namely the "why-not" problem. The considered solution to this "why-not" problem is advice and steps so that a query point that does not initially consider an incomplete data, as a result, can later make the record or incomplete data as part of the results. In this study, there will be further discussion about the dominance relationship between incomplete data along with the solution of the problem. Moreover, some performance evaluations are conducted to measure the level of efficiency and effectiveness.
CONTINUOUS MULTIQUERIES K-DOMINANT SKYLINE ON ROAD NETWORK Muttaqi, Syukron Rifail; Santoso, Bagus Jati
JUTI: Jurnal Ilmiah Teknologi Informasi Vol. 18, No. 2, July 2020
Publisher : Department of Informatics, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24068535.v18i2.a999

Abstract

The increasing use of mobile devices makes spatial data worthy of consideration. To get maximum results, users often look for the best from a collection of objects. Among the algorithms that can be used is the skyline query. The algorithm looks for all objects that are not dominated by other objects in all of its attributes. However, data that has many attributes makes the query output a lot of objects so it is less useful for the user. k-dominant skyline queries can be a solution to reduce the output. Among the challenges is the use of skyline queries with spatial data and the many user preferences in finding the best object. This study proposes IKSR: the k-dominant skyline query algorithm that works in a road network environment and can process many queries that have the same subspace in one processing. This algorithm combines queries that operate on the same subspace and set of objects with different k values by computing from the smallest to the largest k. Optimization occurs when some data for larger k are precomputed when calculating the result for the smallest k so the Voronoi cell computing is not repeated. Testing is done by comparing with the naïve algorithm without precomputation. IKSR algorithm can speed up computing time two to three times compared to naïve algorithm.
MAPPING POTENTIAL ATTACKERS AGAINST NETWORK SECURITY USING LOCATION AWARE REACHABILITY QUERIES ON GEO SOCIAL DATA Firdausi, Hafara; Santoso, Bagus Jati; Qudus, Rohana; Ciptaningtyas, Henning Titi
JUTI: Jurnal Ilmiah Teknologi Informasi Vol. 19, No. 2, Juli 2021
Publisher : Department of Informatics, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24068535.v19i2.a1071

Abstract

Attacks on network security can happen anywhere. Using Geo-Social Networks (GSN), i.e., a graph that combines social network data and spatial information, we can find the potential attackers based on the given location. In answering the graph-based problems, Reachability Queries are utilized. It verifies the reachability between two nodes in the graph. This paper addresses a problem defined as follows: Given a geo-social graph and a location area as a query point, we map potential attackers against network security using location-aware reachability queries. We employ the concepts of Reachability Minimum Bounding Rectangle (RMBR) and graph traversal algorithm, i.e., Depth-First Search (DFS), to answer the location-aware reachability queries. There are two kinds of the proposed solution, i.e., (1) RMBR-based solution map potential attackers by looking for intersecting RMBR values, and (2) Graph traversal-based solution map potential attackers by traversing the graph. We evaluate the performance of both proposed solutions using synthetic datasets. Based on the experimental result, the RMBR-based solution has much lower execution time and memory usage than the graph traversal-based solution.
Cloud-based middleware for supporting batch and stream access over smart healthcare wearable device Adhitya Bhawiyuga; Satria Adi Kharisma; Bagus Jati Santoso; Dany Primanita Kartikasari; Annisa Puspa Kirana
Bulletin of Electrical Engineering and Informatics Vol 9, No 5: October 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2477.186 KB) | DOI: 10.11591/eei.v9i5.1978

Abstract

In IoT-based smart healthcare services, the heterogeneity of connected wearable sensing devices open up a wide opportunity to develop various healthcare services. However, it also poses an interoperability challenge since each sensing device and application may have different communication mechanisms. Considering that challenge, web platform can be seen as a promising candidate for providing an interoperability layer as we can abstract various devices as single representation i.e. web resource. In this paper, we propose the design of middleware for enabling efficient web of things access over healthcare wearable devices. The proposed middleware consists of three components: gateway-to-cloud device, messaging service and data access interface. The gateway-to-cloud device has a role to perform low level sensor data collection from various wearable sensing device through bluetooth low energy (BLE) communication protocol. Collected data are then relayed to the cloud IoT platform using a lightweight MQTT messaging protocol. In order to provide device abstraction along with access to the stored data, the system offers two kind of interfaces: the Restful HTTP identified by unique universal resource locator (URL) for batch access and MQTT websocket interface identified by unique topic to accommodate access on sensing data in near real time stream manner.
Rancang Bangun dan Implementasi Aplikasi Electronic Instrument Database System Bagus Jati Santoso; F.X. Arunanto; Siti Rochimah; Dini Adni Navastara
Jurnal Ilmiah FIFO Vol 11, No 1 (2019)
Publisher : Fakultas Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/fifo.2019.v10i1.001

Abstract

For all real-time industrial processes in a company, the entire system must be well-controlled to ensure an effective, efficient and reliable operations. Therefore, several electronic instruments are needed to measure physical quantities, such as temperature, pressure and others. As in one of the largest liquefaction natural gas processing company in Indonesia which involves highly extensive production processes, the existence of electronic instruments is unquestionably essential to ensure the progression of the production process while avoiding risks.To increase the speed, accuracy and quality of data over the electrical instrument in the company, it is necessary to build an electronic instrument data processing application system, called the Electronic Instrument Database System (ELIDA), so that it can provide convenience for the users in managing and monitoring the data of electronic instrument. The built ELIDA system will be integrated with several existing Oracle-based systems, including EBS-SCM for supply chain management, EBS-EAM for Enterprise Asset Management, and Oracle HRMS for human resource management so that the data consistency and the operational smoothness of the company can be ensured.Keywords : electronic instrument, database, application  AbstrakUntuk semua proses yang berjalan real-time di perusahaan, keseluruhan sistem harus dikendalikan secara baik untuk menjamin operasional yang efektif, efisien, dan handal. Karenanya, beberapa perangkat instrumen elektronik diperlukan untuk mengukur kuantitas fisikal seperti temperatur, tekanan, dan lainnya. Tak terkecuali di salah satu perusahaan pengolahan gas alam cair terbesar di Indonesia dimana melibatkan proses produksi yang sangat panjang, keberadaan perangkat instrumen elektronik mutlak diperlukan untuk menjamin jalannya proses produksi sekaligus menghindarkan terjadinya resiko.Dalam upaya peningkatan kecepatan, keakurasian, dan kualitas data-data instrumen di perusahaan tersebut, perlu dibangun sistem aplikasi pengolahan data instrument elektronik, atau disebut Electronic Instrument Database System (ELIDA), sehingga dapat memberikan kemudahan bagi pengguna data-data instrumen elektronik untuk melakukan pengelolaan dan pemantauan. Sistem ELIDA yang dibangun akan menggunakan framework Spring Hibernate dan terintegrasi dengan beberapa sistem berbasis Oracle yang sudah berjalan sebelumnya, diantaranya EBS-SCM untuk manajemen rantai pasok, EBS-EAM untuk manajamen aset perlengkapan, dan Oracle HRMS untuk manajemen sumber daya manusia sehingga konsistensi data dan kelancaran operasional perusahaan dapat terjamin.Kata Kunci: instrumen elektronik, basis data, aplikasi
Rancang Bangun Manajemen Alokasi Virtual Machine dalam Lingkungan Hypervisor yang Heterogen Fathoni Adi Kurniawan; Royyana Muslim Ijtihadie; Bagus Jati Santoso
Jurnal Teknik ITS Vol 7, No 2 (2018)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.754 KB) | DOI: 10.12962/j23373539.v7i2.33759

Abstract

Virtual Machine merupakan teknik virtualisasi yang menyajikan perangkat keras yang dapat menjalankan perangkat lunak seperti perangkat keras fisik. Penyedia layanan Virtual Machine biasa disebut dengan Hypervisor. Hypervisor menangani manajemen Virtual Machine pada sebuah host.Saat ini, penggunaan Virtual Machine dalam dunia teknologi sangat banyak dilakukan. Karena sangat banyaknya penggunaan Virtual Machine, maka dari itu banyak Hypervisor yang disediakan oleh pengembang, contohnya Vmware, Proxmox, Xen, Qemu dan lain-lain. Keragaman Hypervisor menyebabkan perbedaan cara pengoperasian. Hal ini menyebabkan sulitnya alokasi Virtual Machine. Masalah tersebut juga dialami oleh DPTSI ITS. Ketika pengguna membutuhkan Virtual Machine untuk kerperluan pengembangan aplikasi maupun server database, pengguna akan kebingungan untuk melakukan alokasi Virtual Machine. Pada akhirnya pengguna yang membutuhkan Virtual Machine akan menghubungi System Administrator yang mengerti tentang pengorperasian Hypervisor tertentu.Dalam makalah ini akan dibangun sebuah rancangan sistem yang memungkinkan menjembatani cara penggunaan Hypervisor yang berbeda. Sistem akan diakses melalui interface yang disediakan untuk pengguna untuk manjemen alokasi Virtual Machine. Dari hasil uji coba, sistem dapat menangani permintaan alokasi virtual machine pada hypervisor yang berbeda berdasarkan pemilihan server terbaik. Selain dapat dapat menangani permintaan alokasi virtual machine pada hypervisor yang berbeda, sistem mampu mengalokasikan virtual machine, lima belas request dalam waktu hampir bersamaan.
EFFECTIVENESS OF DEEP LEARNING APPROACH FOR TEXT CLASSIFICATION IN ADAPTIVE LEARNING Umi Laili Yuhana; Imamah Imamah; Chastine Fatichah; Bagus Jati Santoso
Jurnal Ilmiah Kursor Vol 11 No 3 (2022)
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/kursor.v11i3.285

Abstract

Klasifikasi text sangat bermanfaat dan dibutuhkan diberbagai bidang. Salah satu bidang yang membutuhkan klasifikasi text adalah E-learning yang bersifat adaptive atau disebut sebagai adaptive learning sistem. Adaptive learning sytem adalah sistem pembelajaran online yang dapat memberikan rekomendasi pembelajaran berdasarkan kebutuhan pengguna. Adaptive learning memiliki dua bagian, yaitu modul learning dan modul testing. Modul learning adalah bagian dari sistem yang bertugas untuk memberikan rekomendasi pembelajaran bagi pengguna, sedangkan modul testing bertugas untuk menguji dan memberikan penilaian terhadap hasil pembelajaran yang diperoleh dari modul learning. Materi pembelajaran pada modul learning memerlukan klasifikasi text berdasarkan tingkat kesulitannya untuk memastikan bahwa pengguna dengan level kemampuan rendah juga mendapatkan materi pembelajaran yang mudah, dan rekomendasi ini akan dinamis mengikuti perkembangan kemampuan pengguna. Pada penelitian ini, akan dibahas bagian kecil dari sistem pembelajaran adaptive pada modul learning yaitu tahap klasifikasi text. Dataset yang digunakan dalam penelitian ini adalah mata pelajaran IPA untuk tingkat SMP yang didapatkan dari Ruang Guru dan merupakan salah satu platform E-learning di Indonesia. Metode yang digunakan dalam penelitian ini adalah CNN, RNN dan HAN dengan menggunakan word embedding Word2Vec
Digitalisasi Tatalaksana Pasien Diabetes Melitus (DM) Melalui Aplikasi DM Assistant sebagai Upaya Peningkatan Kepatuhan Pilar Diabetes Melitus Bagus Jati Santoso; Arina Qona'ah; Endyka Erye Frety
Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Vol 2 No 2 (2022): JIPPM - Desember 2022
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (459.977 KB) | DOI: 10.54082/jippm.23

Abstract

Diabetes mellitus merupakan penyakit metabolic kronis yang dapat membutuhkan perawatan jangka panjang. Pasien perlu menjalankan pengobatan dan penatalaksanaan lain secara berkala dan berkesinambungan. Diperlukan inovasi dalam pelayanan dengan memanfaatkan teknologi agar pengelolaan pasien DM dapat lebih optimal. Tujuan pengabdian masyarakat adalah mengembangkan aplikasi yang dapat digunakan untuk meningkatkan kepatuhan pasien DM dalam menjalankan pilar DM. Pengabdian masyarakat dilakukan dengan cara Focus Group Discussion (FGD) bersama Puskesmas Sukodadi Lamongan, pengembangan aplikasi DM Assistant, Sosialisasi aplikasi kepada kepada tenaga kesehatan dan pasien diabetes melitus. Kegiatan dilaksanakan di Puskesmas Sukodadi Lamongan dan Balai Desa Sukolilo Sukodadi Lamongan. Pelatihan diberikan kepada sejumlah 10 tenaga Kesehatan dan kepada 30 peserta prolanis. Kegiatan pengabdian masyarakat dilaksanakan mulai bulan Agustus – Oktober 2022. Pengabdian masyarakat ini bekerjasama dengan Puskesmas Sukodadi Lamongan. Kegiatan pengabdian masyarakat ini telah mengahasilkan aplikasi yang digunakan baik oleh tenaga Kesehatan maupun pasien DM di wilayah kerja Puskesmas Sukodadi Lamongan yaitu aplikasi DM Assistant. Diperlukan perbaikan baik dari segi tampilan, konten dan integrasi aplikasi dengan system pelayanan yang sudah di Puskesmas.
Sistem Penanaman Virtual Sebagai Upaya Peningkatan Daya Tarik Eduwisata, Desa Oro-oro Ombo, Kota Batu Hertiari Idajati; Didit Prasetyo; Iska Desmawati; Dian Saptarini; Ridho Rahman; Bagus Jati Santoso; Fatmala Ulfa Nurliyana
Sewagati Vol 6 No 6 (2022)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2040.767 KB) | DOI: 10.12962/j26139960.v6i6.126

Abstract

Amke berada di Desa Oro-oro Ombo merupakan salah satu kawasan tersertifikasi pertanian organik di Kota Batu. Jenis komoditi perkebunan yang cukup potensial dan merupakan tanaman unggulan di antara lain produksi Jahe dan sereh. Dengan demikian, dapat dikatakan bahwa Desa Oro-oro Ombo khusunya Amke memiliki potensi untuk dikembangkan sebagai wisata edukasi dengan tema tanaman herbal. Pada dalam mengembangkan wisata edukasi tersebut perlu adanya kajian lebih lanjut terkait bagaimana konsep yang akan diterapkan dalam pengemasan daya tarik wisata herbal Eduwisata Amke. Tujuan pengabdian masyarakat ini adalah memberikan alternatif daya tarik wisata di Amke sebagai objek eduwisata, Desa Oro-oro Ombo khususnya pada masa pandemi ini yang membutuhkan sebuah daya tarik wisata secara virtual. Salah satu konsep yang dapat diusung dalam pengembangan suatu objek wisata adalah melalui pembuatan sistem penanaman tumbuhan herbal sereh yang divisualkan dalam bentuk video animasi dan kemudian dipublikasi dalam media sosial sehingga dapat diakses dimana saja oleh pengguna smartphone.
Co-Authors Adhitya Bhawiyuga Annisa Puspa Kirana Arina Qona'ah Ary Mazharuddin Shiddiqi Baskoro Adi Pratomo Chastine Fatichah Connery, Tosca Yoel Dany Primanita Kartikasari Didit Prasetyo Dini Adni Navastara, Dini Adni Endyka Erye Frety F.X. Arunanto Fathoni Adi Kurniawan Fatmala Ulfa Nurliyana Firdausi, Hafara Henning Titi Ciptaningtyas Hertiari Idajati, Hertiari Hudan Studiawan Imamah Imamah Iska Desmawati Muttaqi, Syukron Rifail Qudus, Rohana Radityo Anggoro, Radityo Ridho Rahman Hariadi Royyana Muslim Ijtihadie Royyana Muslim Ijtihadie Saptarini, Dian Satria Adi Kharisma Siti Rochimah Supeno Djanali Tohari Ahmad Vynska Amalia Permadi Waskitho Wibisono Yuhana, Umi Laili