Judul: Analisis Produk Cacat pada Agroindustri Ribbed Smoke Sheet dengan Pendekatan Lean Six Sigma dan Traceability.
Abstrak: Masih tingginya jumlah produk cacat menuntut PT X yang berlokasi di Bandung Barat, Jawa Barat untuk meningkatkan kualitasnya agar dapat tetap bersaing dan meningkatkan kepuasan konsumen terhadap produknya, salah satunya dengan Lean Six Sigma dan traceability yang berfungsi untuk meminimumkan jumlah produk cacat yang diproduksi. Penelitian ini bertujuan untuk mengidentifikasi penyebab terjadinya produk cacat dan memberikan solusi terhadap permasalahan. Tahapan penelitian menggunakan metode six sigma, yaitu define, measure, analyze, dan improve. Proses produksi pembuatan RSS terbagi menjadi beberapa tahapan, yaitu penyadapan, koagulasi, penggilingan, pengasapan, sortasi, dan penggudangan. Terdapat tiga critical to quality yang menyebabkan terjadinya produk cacat, yaitu gelembung, kotoran dan bagian tidak matang. Hasil pengukuran kinerja menggunakan nilai sigma menunjukkan PT X masih berada diatas rata-rata perusahaan di Indonesia, dengan nilai defect per million opportunity (DPMO) rata-rata 8997.46 dan nilai sigma rata-rata 3.95. Business process pembuatan RSS di PT X teridentifikasi beberapa stakeholder yaitu penyadap, mandor lapang, mandor pabrik, mandor pengolahan, mandor sortasi, pemasaran, head office, dan konsumen. Hasil analisis dengan fishbone diagram didapatkan penyebab terjadinya produk cacat yang teridentifikasi yaitu kurangnya konsentrasi dan ketelitian pekerja, kotoran pada bahan baku, suhu pengasapan, dan kendala alat yang digunakan selama proses berlangsung. Berdasarkan fishbone diagram, diperoleh saran perbaikan yang diajukan yaitu penambahan proses penyaringan saat penyadapan di kebun, perbaikan metode kerja, pengawasan kerja, pembagian jam kerja siang dan malam, dan maintenance serta penggantian suku cadang mesin secara rutin. Selain itu, penerapan gugus kendali mutu akan mempermudah perusahaan dalam melakukan perbaikan secara terus-menerus.
Keyword: Fishbone Diagram, Ribbed Smoke Sheet, Lean Six Sigma, Traceability

Judul: Analisis Pengurangan Jumlah Produk Cacat pada Industri Kertas dengan Pendekatan Lean Six Sigma
Abstrak: The high number of the defective product that occur in each company can affect quality. PT. X is a company engaged in the pulp and paper product. Lean approach does not allow for waste, in this case, defective product. Product defects that often arise in this industry are paper holes, dirty paper, folded, size variations and foreign contamination. The purpose of this study is to identify the causal factors in the production line of a product defect based on six sigma stages. The solution that can reduce the number of defects. The stages of six sigma are define, measure, analyze, improvement and control. The results of calculation of the value sigma of paper holes for two months was 4.66 and 4.58. Dirty paper has a sigma value of 4.99 and 5.06. The sigma level indicates that the performance of the production is above average Indonesian company. The costumer complaint coming into the company for folded paper, size variations and foreign contamination has decreased from 2010 to 2011. But it has not reached the six sigma target. Therefore, the company needs to be improved using the Lean tool, that is Kaizen Blitz.
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Judul: Query Expansion based on Bilingual Dictionary Using Conditional Probability
Abstrak: Query expansion is a technique that can be used to bridge vocabulary gaps between queries and documents in the collection. With query expansion, user will be helped to formulate queries well so that user will optimize the search result. In this study, the expansion term was resulted from the translation of bilingual dictionary. Subsequently, several terms of expansion were elected based on the closeness of its relationship with the original query. This research showed that conditional probability can be used to select expansion term in bilingual translation method query expansion. The result of 1000 documents was more than 97% relevan document can be retrieved by this system. The more expansion term used, the larger number relevan document was retrieved.
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