Shampoo: Preconditioned Stochastic Tensor Optimization

Preconditioned gradient methods are among the most general and powerful tools in optimization. However, preconditioning requires storing and manipulating prohibitively large matrices. We describe and analyze a new structure-aware preconditioning algorithm, called Shampoo, for stochastic optimization over tensor spaces. Shampoo maintains a set of preconditioning matrices, each of which operates on a single dimension, contracting over the remaining dimensions. We establish convergence guarantees in the stochastic convex setting, the proof of which builds upon matrix trace inequalities. Our experiments with state-of-the-art deep learning models show that Shampoo is capable of converging considerably faster than commonly used optimizers. Although it involves a more complex update rule, Shampoo's runtime per step is comparable to that of simple gradient methods such as SGD, AdaGrad, and Adam

Comparison of Selenium Sulfide 1% and Zinc Pyrithione 1% and Combination of Them in Overcoming Malassezia Globosa in Vitro

Dandruff is a scalp disorder that is affected by three factors, namely the fungus Malassezia globosa, sebaceous gland activity, and individual susceptibility. Selenium sulfide (SeS2) and Zinc Pyrithion (ZPTO) is used as an antidandruff shampoo active ingredient because it has anti-fungal properties. The study was conducted to determine the potentiality of shampoo with active ingredient SeS2 1% and ZPTO 1% to M.globosa in vitro. The colonies of M.globosa (CBS 7966 ATCC 96 807) were exposed to a non-antifungal base shampoo, shampoo containing 1% SeS2, shampoo containing 1% ZPTO and shampoo containing combination of 1% SeS2 and 1% ZPTO. Fungal contact time with shampoo is 3 and 5 minutes. Fungal colonies are grown on Sabourraud Dextrose agar (SDA) medium coated with olive oil. Incubation was carried out at 37° C for 5 days. After fiveday, assessment was performed to observe whether the fungal culture was grown, and then the colony growth is calculated. The research was conducted at Clinical Parasitology Laboratory, Parasitology Department, Faculty of Medicine, University of Indonesia from November 2011 until April 2012. Data were analyzed using ANOVA and LSD Fisher test. Shampoo containing 1% SeS2 inhibited fungal growth in 5 min contact time (p = 0,000 <0.05), whereas 1% ZPTO shampoo fungal growth was inhibited either in 3 min or 5 min contact time (p = 0,000 <0,05), and combination of 1% SeS2 and 1% ZPTO shampoo in both contact times (p = 0,000 <0.05). In conclusion, combination of 1% SeS2 and 1% ZPTO shampoo has the most potency in inhibiting the growth of M.globosa colonies in vitro

Analisis Brand Switiching Untuk Memprediksi Market Share Dan Segmentasi Terhadap Jenis Merek Shampo Dengan Marcov Chain Dan Cluster Analysis (Studi Kasus: Toserba Swalayan MITRA Kartasura

Toserba Swalayan MITRA Kartasura merupakan salah satu sarana bagi konsumen memperoleh produk yang mereka butuhkan, termasuk produk shampoo. Agar dapat memenuhi keinginan dan kebutuhan konsumen, maka pihak swalayan perlu menetapkan strategi yang tepat agar konsumen tidak beralih ke swalayan yang lain sehingga memperoleh laba yang optimal. Salah satu caranya yaitu dengan mengetahui perilaku pembelian konsumen, khususnya kemungkinan adanya brand switching terhadap produk shampoo (yang terdapat bermacammacam merek). Perilaku perpindahan ke merek lain oleh konsumen dapat mempengaruhi market share tiap-tiap merek shampoo. Untuk memprediksi market share tiaptiap merek shampoo pada periode tertentu dapat menggunakan marcov chain analysis. Sedangkan, untuk mengelompokkan konsumen dan mengetahui karakteristik kelompok konsumen yang banyak menggunakan merek shampoo tertentu dapat menggunakan cluster analysis, yang didahului dengan mengetahui atribut yang lebih diprioritaskan konsumen dalam memilih satu merek shampoo berdasarkan indeks sikap. Dari hasil penelitian dapat diketahui bahwa market share produk shampoo terbesar pada bulan November dan Desember 2006 adalah merek Sunsilk yaitu sebesar 23% dan 23,12%, serta untuk bulan Januari 2007 market share terbesar tetap dikuasai merek Sunsilk yaitu sebesar 23,05%. Atribut/faktor yang menjadi prioritas utama yang menjadi pertimbangan konsumen dalam membeli shampoo adalah manfaat/hasil yang terdapat pada shampoo. Sedangkan kelompok konsumen yang paling dominan adalah konsumen yang berada pada cluster 4 yang merupakan konsumen golongan usia remaja dengan pendapatan rendah

Pengaruh Celebrity Endorser, Brand Image, Brand Trust terhadap Keputusan Pembelian Clear Shampoo di Kota Denpasar

Basic scientific work is to discuss (1) the effect of celebrity endorser, brand image, brand trust simultaneously influence the purchase decisions Clear shampoo in Denpasar, (2) to determine the influence celebrity endorser, brand image, brand trust partially influence on purchasing decisions Clear shampoo in Denpasar, and (3) to determine the influence celebrity endorser, brand image, brand trust is the dominant influence on purchasing decisions Clear shampoo in Denpasar. The scientific work of Denpasar choose with the help of a data analysis technique multiple linear regression. Through purposive sampling method, a sample of 105 respondents obtained.Data replied with SPSS program proves that celebrity endorser, brand image, brand trust simultaneously positive and significant influence on purchasing decisions Clear shampoo in Denpasar with Fhitung value (144.297)> F table (2.70). celebrity endorser, brand image, brand trust is partially positive and significant impact on purchasing decisions Clear shampoo in Denpasar. Brand image dominant influence on purchasing decisions Clear shampoo in Denpasa

PENGARUH CELEBRITY ENDORSER DAN TAGLINE TERHADAP BRAND AWARENESS PADA PRODUK CLEAR MEN SHAMPOO DI PT. PALAPA DIGITAL ELEKTRONIK INDONESIA

ABSTRACT Adinda Rahmadewi Noor, 2016; The Influence Of Celebrity Endorser And Tagline Toward Brand Awareness Of Clear Men Shampoo At PT. Palapa Digital Elektronik Indonesia. Thesis, Jakarta: Concentration of Marketing Management, S1-Regular Studies Program, Department of Management, Faculty of Economic, State University of Jakarta. The purpose of this study were: 1) To notice the affect between celebrity endorser on brand awareness 2) To notice the affect between tagline on brand awareness 3) To determine empirically the effect of celebrity endorser and tagline on brand awareness of Clear Men Shampoo. The analysis conducted in this study is descriptive and explanatory analysis survey. Research conducted on 110 respondents of Customer Clear Men Shampoo at PT. Palapa Digital Elektronik Indonesia. Data collected by distributing questionnaires, which are then processed using SPSS version 22. The results show that: 1) Celebrity endorser significantly influence brand awareness of Clear Men Shampoo. This is evidenced with sig 0.000 < 0.05. 2) Tagline variables significantly brand awareness of Clear Men Shampoo. This is evidenced with sig 0.002 < 0.05. 3) The second independent variable celebrity endorser and tagline also have a significant effect on the dependent variable is brand awareness. Because sig 0.000 < 0.05. Keywords: Celebrity Endorser, Tagline, Brand Awarenes