TechnologyTechnology

2020
6/
11

Sparse Modeling Study Sessions: A Convex Optimization Approach to LASSO – What is the Convex Optimization Problem?

Inthisarticle,TakahiroSuzuki,adatascientistatHACARUSexplainstheconvexoptimizationproblemcoveringallthebasictermsyouneedtounderstandit.0.IntroductionMynameisTakahiroSuzuki,datascientistintheHACARUSTohokuteam.Asmentionedinapreviousblog, HACARUShasstartedstudysessionstolearnmoreaboutsparsemodelingaspartofoureverydaybusiness.TheSparseModelingStudySessionsarecontributingtothepromotionofmutualknowledgeexchangeamongHACARUSmembers-…

2020
5/
22

A peek inside our Sparse Modeling Study Sessions: Image Analysis

WhatisDictionaryLearning?Indictionarylearning,patchesofsignalssuchasimagesandwaveformsarerepresentedasaweightedlinearsumofdictionaries(clustersofatoms)(Figure1).Thisallowstheextractionofessentialsignalsandavarietyofapplicationsarepossibleaslistedbelow:・Noisesuppression(Figure1)・Super-Resolution・DataDeficiencyCompletion・DataCompression・Classification,etc.Inadditiontoawiderangeofapplications,oneappealingfeatureistheabilitytolearnandpredictusingimagesofdifferent…

2019
12/
26

HACARUS Gives Lecture at Shiga University Graduate School of Data Science

OnDecember19,2019,TakashiSomeda,HACARUS’ChiefTechnicalOfficer,NaokiKitora,itsChiefDataScientistandRyujiMasui,DataScientistgavealectureatShigaUniversity,totheGraduateSchoolofDataScience,introducingrealworldexamplesofutilizingmachinelearningforimprovingvisualinspectionatmanufacturingsites.TheGraduateSchoolofDataScienceatShigaUniversity,whichopenedinAprilofthisyear,hasamixedstudentbody,consistingofprofessionals,inadditiontothosewhohaveadvanced…

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