Judul: Perancangan Chatbot LINE Informasi Mahasiswa Baru IPB Menggunakan Abishek’s Chatbot Design Process
Abstrak: Institut Pertanian Bogor memiliki media sosial yang digunakan oleh banyak orang sebagai tempat bertanya informasi kampus IPB, khususnya adalah siswa SMA kelas 3 yang akan masuk perguruan tinggi. Namun, media sosialnya hanya diatur oleh seorang administrator sehingga memerlukan waktu yang banyak dalam menggunakannya. Chatbot LINE Institut Pertanian Bogor akan memberikan pelayanan yang baik bagi siswa SMA tersebut karena chatbot dapat memberikan balasan dalam waktu yang singkat. Tujuan dari penelitian ini adalah menghasilkan rancangan prototipe chatbot LINE Institut Pertanian Bogor yang berfokus pada percakapan antara pengguna dan sistem chatbot. Metode yang digunakan dalam penelitian ini adalah metode yang dikembangkan oleh Abhishek yang terdiri atas 6 tahap yaitu, scope & requirements, identify inputs, understand UI element, craft first interaction, build conversations, dan testing. Hasil dari penelitian ini berupa rancangan prototipe chatbot sampai tahap medium-fidelity. Pada iterasi pertama, prototipe telah diuji kepada lima orang dan menghasilkan feedback untuk pengembangan berikutnya. Pada iterasi kedua, prototipe diujikan kepada 10 orang dan menghasilkan penilaian chatbot dalam bentuk kuantitatif dan kualitatif.
Keyword: chatbot, LINE, user experience

Judul: Development of Web-based Besti B7 Chatbot
Management Application using Extreme Programming Method
Abstrak: Penggunaan chatbot akhir-akhir ini sedang booming. Pada perusahaan, chatbot dapat dimanfaatkan oleh dua jenis pengguna, yaitu pelanggan atau karyawan. PT Bintang Toedjoe memiliki helpdesk sebagai sarana untuk merespon pertanyaan karyawan dan mencari dokumen. Penelitian ini bertujuan untuk mengembangkan aplikasi chatbot Besti B7 berbasis web untuk mempermudah admin dalam membuat chatbot. Penelitian ini menggunakan lima tahap metode Extreme Programming (XP) dengan tiga iterasi. Pendekatan XP untuk chatbot menerapkan dua kemampuan chatbot, yaitu task umum dan task pencarian dokumen. Pada task umum, Teknik yang dilakukan menggunakan dua metode yang berbeda antara iterasi satu dan dua. Perbedaan metode disebabkan karena tidak terpenuhinya syarat akurasi chatbot di iterasi satu yang telah ditetapkan. Task umum iterasi satu menggunakan jaringan saraf tiruan, sedangkan iterasi dua menggunakan sentence-BERT. Pada task pencarian dokumen, peneliti juga menggunakan sentence-BERT yang sama seperti task umum di iterasi dua, hanya saja yang membedakan adalah jenis responnya. Task umum memberikan respon berupa teks percakapan, sedangkan task pencarian dokumen menampilkan lima peringkat teratas dokumen berdasarkan kemiripan cosine similarity antara kueri dan teks pada dokumen. Hasil akhir dari penelitian ini adalah sebuah aplikasi chatbot yang dapat membuat, memelihara, dan mengelola chatbot tanpa melakukan coding bagi pengguna admin., The The use of chatbots is booming. In companies, chatbots can be used by customers or employees. PT Bintang Toedjoe has a helpdesk for responding to employee questions and document searches. This research aims to develop a webbased chatbot management application, Besti B7, to help admins create chatbots. It uses the Extreme Programming (XP) method with three iterations. The XP approach includes two capabilities: general tasks and document search tasks. Different methods were used for general tasks in the first and second iterations due to unmet accuracy requirements in the first iteration. The first iteration used artificial neural networks, while the second used sentence-BERT. For document search tasks, sentence-BERT was also used, but the response type differed. General tasks provided conversational text responses, while document search tasks displayed the top five documents based on cosine similarity. The final result is a chatbot management application that allows admins to create, maintain, and manage chatbots without coding
Keyword: Artificial Neural Network, Chatbot, extreme programming, cosine similarity, sentence-BERT

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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