Starrydata2:AplotminingwebsystemforliteraturedatacollectionYukariKatsura1,2*,MasayaKumagai3, Takushi Kodani1,2,Hideyasu Ouchi1,2,SakikoGunji2,YukiAndo2,YojiImai3,KaoruKimura1 andKojiTsuda1,2,31Univ.ofTokyo2MaDIS-MI2I,NIMS3RIKENAIP 1

MIワークショップ2018年 1⽉29⽇東京⼤学本郷キャンパス

KeyforthenextMI:Experimentaldatafromthousandsofpastpapers

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• Searchenginesforallresearchers

• Datasourceformaterialsinformatics

Recoveryofexperimentaldatafromvariousplots

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C.Kimetal.,ACSAppl.Mater.Interfaces4(2012)2949-2954.V.Stavila etal.,ACSAppl.Mater.Interfaces5(2013)6678-6686.L.Yangetal.,ACSAppl.Mater.Interfaces7(2015)23694-23699.Y.Minetal.,ACSNano9(2015)6843-6853.D.Kimetal.,Acta Materialia 59(2011)405-411.D.Kimetal.,Acta Materialia 59(2011)4957-4963.L.Huetal.,Acta Materialia 60(2012)4431-4437.K.Biswasetal.,Adv.EnergyMater.2(2012)634-638.Y.Minetal.,Adv.Mater.25(2013)1425-1429.L.Huetal.,Adv.Funct.Mater.24(2014)5211-5218.Q.Zhangetal.,Adv.Funct.Mater.25(2015)966-976.

Tasks:1.Plotdigitizationfromimages2.Sampledescriptionfromtext(chemicalcompositionetc.)

Time-consuming&boringforresearchers→ Developedanewwebsystem

Targetareaofourexperimentaldatabase

4Reliabilityofsingledata

Collectionspeed

Large-scaleDB?Fully-automaticdigitizationText-mineddescription

Non-selective

Analysisofroughtrends

IntermediateDBSemi-automaticdigitization

ManualdescriptionNon-selective

Experimentalmaterialsinformatics

Searchengineforpastexperimental

samples

Ourtarget!

ClassicalDBManualdataextractionManualdescription

Selective

Directoriesforreliablereferences

Starrydata2websystem:Onlinedata-sharingplatformforliteraturedata

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URL:http://starrydata2.orgProgramming:MasayaKumagai (RIKEN)FREEtouse

OtherMaterlalsdatabase?

OtherMaterlalsdatabase?

OtherMaterlalsdatabase?

OtherMaterlalsdatabase?

OtherMaterlalsdatabase?

OtherMaterlalsdatabase?

Catalystmaterials?Magneticmaterials?Batterymaterials?Strongly-correlatedsystems?Superconductors?Dieletric materials?….

Prototypedatabase:“TEdbProject”Adatabaseofexperimentalthermoelectricproperties

Databaseselectionpage

Starrydata2websystem:Indexpage

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InputmultipleDOIs(DigitalObjectIdentifier)

Searchforpapers

Additionofselectedpapersonmylists

Linkforplot-mineddata

Bibliographicinformation:automaticallyretrievedfromDOI

ListofallpapersinDB

LinkforPublisher'swebsiteforfulltext

Suggestivefilenameforfulltext download

Createoriginalmylists

Mylists ofpapers

Designedasatoolforresearcherstoorganizeinformationaboutpublishedpapers

URL:http://starrydata2.orgProgramming:MasayaKumagai (RIKEN)

Starrydata2:Data-browsingpage

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①Click"Data"

Listoffigureswithdatasets

Listofsamplesreportedinthepaper

② Figureselector

③Sampleselector

④DigitaldatainSIunit

ConvertUnit

⑤Dataintheselectedfigure

Browse/Add/Editdata

Addnewdata

Bibliographicinformationoforiginalpaper

Automaticunitconversione.g.10mW/(cm*K)→1W/(m*K)

Plot-miningprocedure:(1)Getplotimages

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③CaptureplotimagesbyPrintScreen /FireShot /PDFreaderetc.

①AccessPublisher'swebpage ②AccessFulltext PDF

(ExampleinGoogleChrome)

④Copyplotimage ⑤GotobottomofStarrydata 2 ⑦Pastetheplotimage

WebPlotDigitizer isembedded

AnkitRohatgi

Align-axesdialogue

Zoombutton

(2)Semi-automaticplottracingbyWebPlotDigitizer

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①Chooseplottype ②AlignX-YAxes ③Click4pointsonaxes ④Inputreadings

⑤SelecttracingregionsBox,Pen,Erase toolsareavailable

⑥SelectcolorandRunSelectalgorithmandtuneparameters

↑Automaticallydetectedpoints

←click

←click

←click

←click

⑦Viewdataandcopythedigitizeddata

↑click

⑧PastethedigitizeddatatoStarrydata2→Save

TracingbymanualclickingisalsopossibleOptional

AnkitRohatgi

RecordedsamplesofPbTe-typethermoelectricmaterials

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Circlesize∝ ZT

Thermalconductivity

Powerfactor

208sampleswithdataat300K

Datacollection:Takushi Kodani (Univ.ofTokyo)

ComparisontopresentDB:UCSB-MRLdataminingchart

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PbTe-type:7datasets

M.W. Gaultois et al., Chemistry of Materials, 25 (2013) 2911.http://www.mrl.ucsb.edu:8080/datamine/thermoelectric.jsp

ApopularlearningdatasetformachinelearningofexperimentalTEproperties

ComparisonofourdatasetwithUCSB-MRLdataminingchart

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OurPbTe-typedataset:morediverse!

LargerdatasetswillcontributepresentMIsystemsby・Reductionofoverlearning・Improvementinpredictionaccuracy

Starrydata 2websystem:Dataexportfunctions

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AJSONfilecontainingalldatasetsinthemylist

DOIlisttosharethemylist

Referencelisttowritepapers

…{'figureid':14,'paperid':2,'propertyid_x':0,'propertyid_y':1,'sampleid':17,'x':1003.2921810699587,'y':-7.749077490774911e-05},{'figureid':14,'paperid':2,'propertyid_x':0,'propertyid_y':1,'sampleid':18,'x':300.4115226337448,'y':-0.00011881918819188195},...],'sample':[{'composition':'Ba24Ga0Ag0Ge100','paperid':0,'sampleid':0,'samplename':'x=0,y=0'},{'composition':'Ba24Ga4Ag0Ge96','paperid':0,'sampleid':1,'samplename':'x=4,y=0'},…

clathrate.json149papers/623figures/890samples73281datapointsFilesize:10MB/Downloadtime:~3min

rawdata (allnumeric)ReadingStarrydata2dataonPython

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paper

figure

sample

property

clathrate.json (10MB)

Possiblecollaborations

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DonationfromindustriesDatasetsofinterestcanberequested

Donation

Tousetheelectronicjournalsystems,theprojecthastobenon-commercial.

Univ.ofTokyoProjectmanager(Ourteam+α)

Studentworkers

Researchassistants

RIKEN

NIMS

NewdataisaddedtoStarrydata2(publictoeveryone)

Currentproject(TEdb):

Data Data

Payment

Forgreaterdatabaseprojects:

Researchassistants

Data

ResearchbudgetsMEXT,JSTetc.

〜¥1,000/paper

Collaboratorsfromindustries

Papers

Data

Summary

Starrydata2websystem(FREE)・Forefficientcollectionandsharingofdatafromplotimagesonliterature・Includesdataexportsystemformaterialsinformatics

Prototypedatabase:TEdbProject (FREE)・Sample-baseddatabaseofexperimentalthermoelectricproperties

・200〜500samplespermaterialfamily(Largestexperiental dataset)

URL:http://starrydata2.orgforfirstuse:http://starrydata2.org/signupManualpage:https://sites.google.com/site/yukarisearch/starrydata

E-mail:katsura@phys.mm.t.u-tokyo.ac.jp

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