Vldb PhD workshop 2016

MethodtoMyMadnessTimKraska

TakeeverythingIsaywithagrainofsalt

Disclaimer

TopicsIworkedon

• XML• CloudComputing• Visualization• TransactionProcessing• Geo-Replication• ModernNetworks• GPUs• Probabilistic PricingModels forMarketPlaces

• DataIntegration• Crowd-Sourcing• SystemsforMachineLearning• GraphProcessing• …

TopicsIworkedon

• XML• CloudComputing• Visualization• TransactionProcessing• Geo-Replication• ModernNetworks• GPUs• Probabilistic PricingModels forMarketPlaces

• DataIntegration• Crowd-Sourcing• SystemsforMachineLearning• Graphprocessing• …

TopicsIdidNOTworkon• SkylineProcessing

Furthermore

• IwantedtodoaPhDineconomics

Furthermore


à GladlyIdidn’t

Furthermore


• IneverwantedtoliveintheUS

à GladlyIdidn’t

Furthermore



à GladlyIdidn’t

à NowIamthereforalmost7years

Furthermore



• Ineverwantedtobeaprofessor

à GladlyIdidn’t


Furthermore




à GladlyIdidn’t


àOK,thatoneIamstillevaluating

Furthermore




• Ididn’tconsiderviz-relatedworkasdeep

à GladlyIdidn’t



Furthermore




• Ididn’tconsiderviz-relatedworkasdeep

à GladlyIdidn’t



à Now,wedoalotofworkinthatarea

Furthermore

Notuncommonforanacademiccareerà Impossibletopredict

Whythoseplaces?

Outline

• ChapterI:Finding/ChangingaResearchAgenda• ChapterII:Preparinganbeingonthejobmarket• ChapterIII:Managingstudents• ChapterIV:Work/Lifebalance• ChapterV:Whybeingaprofessoris(oneof)thebestjobsintheworld

Finding(Changing)aResearchAgenda

ChapterI

• ForyourPhD• ForyourPostDoc• ForyourTenureCase• …

WhyXML

MyFirstWork

XML

Ievenjoined

Mythesiswasplannedout

Keepinmindthatwas2007

• Itwasstillnotclearifcloudisreallyathing• RememberLarryEllison:• "MaybeI'manidiot,butIhavenoideawhatanyoneistalkingabout.Whatisit?It'scompletegibberish.It'sinsane.Whenisthisidiocygoingtostop?”• “Uh,Idon'tunderstandwhatwewoulddodifferentlyinthelightofcloudcomputing,otherthanmarket...youknow,changethewordingonsomeofourads.”

….itwasthebestdecisionImade

ManmussFeste feiern wie sie fallen*(Celebratewhenthechance isthereoronemustmakehaywhenthesun shines)

*DonaldKossmann

ManmussFeste feiern wie sie fallen(Celebratewhenthechance isthereoronemustmakehaywhenthesun shines)

LessonI:Beopportunistic

TwoMainOpportunitiesItook

• Cloudcomputing

• CollaborationwithAndyvanDamatBrownà InteractiveDataExploration

ManyothersIrejected(sometimesforgood,sometimesstupidly,e.g.,Spark)

Currentopportunisticopportunities

• Modernhardware(GPUs,fastnetworks,newtypesofmemory,…)• Cyborgidea(seeAnand Rajaraman’s keynote)• Deeplearning???• Betterintegrationofhumans• …

Thatdoesnotmeanyoushouldrunaftereverynewcarrot

LessonII:Focusontheffuunnddaammeennttaall iissssuueess

Example:UnicornHardware

NVM

FFiirrssttRRoouunnddooffRReesseeaarrcchh

Fundamentalresearchonhowthehardwarewouldchangetheworld

SSeeccoonnddRRoouunnddooffRReesseeaarrcchh

DB+NVM+CrowdDB+NVM+SkylineDB+NVM+Cloud+Crowd

FFiirrssttRRoouunndd::RRaaddiiooaaccttiivviittyy

SSeeccoonnddRRoouunndd::RRaaddiiooaaccttiivviittyy

BDS3Howtousecloud-basedstorageasadisk

SIGMOD2008

MMyyoowwnneexxaammpplleess

Page

2

Page

3

Page

4

Page

5

Page

N

BuildingaDatabaseonS3

RecordManager

PageManager

Application

Client 1/EC2

RecordManager

PageManager

Application

ClientM/EC2

........

........

........

CouldbeexecutedonEC2orcompletelyonthe

client

Page

6

BDS3Howtousecloud-basedstorageasadisk

Fundamentalquestion:Whatdoesconsistencymeanforcostandscalability

SIGMOD2008

ConsistencyRationingVLDB2009

BasicIdeausedbyseveralstartups(sonotthatstupidafterall)

MMyyoowwnneexxaammpplleess

LessonIII:Donotoverthinkandstartquicklyandwithwhatyouknow

SSttaarrttWWiitthhWWhhaattYYoouuKKnnooww

Examples•SQLforCrowdsourcing•UseS3asadiskfordatabases

Doitfast

Asaruleformystudents:foranewtopicourgoalisoftentowritethefirstinitialpaperin3-9month• Thiscanbeavisionpaperforaworkshop,CIDR,etc.orinrarecasesafullpaper

àHelpstoarticulatethegoalsàHelpstogetearlyfeedback

Whatreactiondoyouwant?

1) Yeah,thatmakessense2) Peoplearguing,fightingagainstyou,….

ReactionsonCrowdDB:

Best IdeaEver Youdidn’tciteme Whataretheysmoking inBerkeley

• Ifyoujumpstartanewproject,itwillnotbeperfectanditwilltaketimetorefineit.• Example:

RecalllessonII:Focusontheffuunnddaammeennttaall iissssuueess

CrowdDb

MetaD

ata

Statistic

sParser

Optimizer

Executor

FileAccessMethods

WorkerRelationshipManager

UICreation

UITemplateManager

FormEditor

HITManager

Disk2

Disk1

ResultCrowdSQLSQL

44

Howtointegratecrowdworkers inqueryprocessing

Fundamentalquestion:Whatisthequerysemanticsintheopenworld?

BestpaperawardatICDE2013

VLDB2011

Howtousecrowdsourcingfordatacleaning

SeveralpapersatVLDBandSIGMOD

LLeessssoonnIIVV::SSiimmpplliicciittyyiissccoorreeffoorraarreesseeaarrcchhaaggeennddaa• Youshouldbeabletodescribetheprobleminlessthan30seconds.• Ideally,inasinglesentence.

LLeessssoonnVV::TThheerreeiissaattiimmeettoorreeaaddppaappeerrssaannddrreellaatteeddwwoorrkkbbuuttnnoottiinntthheebbeeggiinnnniinngg

LLeessssoonnVVII::DDoonnoottuunnddeerr--eessttiimmaatteeooppeenn--ssoouurrcceeaanndd““mmaarrkkeettiinngg””

LLeessssoonnVVIIII::PPaappeerrssaarreennootteevveerryytthhiinngg,,bbuuttaanneecceessssiittyyDisclaimer:Verycontroversial

TheadviseIgotfrommyadvisor,andhegotfromhisadvisor,is:• TheonlythingthatreallycountsareSIGMODand

VLDBpaper• Havingacertainamountisanecessitybutnot

sufficienttolandagoodacademicjob

Goalwithmystudents:1top-tierpaperperyearstartingfromyear2.

LLeessssoonnVVIIIIII::DDoowwhhaattiissffuunn

Preparingandbeingonthejobmarket

ChapterII

• ForyourPhD• ForyourPostDoc• ForyourProfessorship• Partiallyalsoforlandingyourdreamindustryjob

UnderstandtheAcademicMarket

•USA• FixcyclestartinginDecember• Tenure-trackmodel• Differentlong-termresources• Moreflexebility

• Europe(Germany,Switzerland,UK)• Ad-hod• Veryslowprocess• Extremelyhard• Faketenure-trackmodel

Icanonlycommentonthosetwomarkets

Decidingwheretoapply?

Hardconstraints

LessonIX:Donotunder-estimatetheimportanceofnetworking

• Itisimportantthatyouknowpeopleinthecommunity• Evenmoreimportantisit,thattherightpeopleknowyou

NetworkingTips• 30s/2min/5minrule• Donotspendthetimewithyourcolleaguesataconference• Visitcompanies/universitiesoutsideoftheconferencesandasktogiveatalk• Activelyintroduceyourself(theeasiestistoaskaquestionafteratalk)• Identifythepeople,whoshouldknowyou• Professorsatcertainplaces,companies,etc.• PhDstudentsatcertainuniversities…(yourPhDfriendsmightbecomeyourcollegues)

Don’ttrytohardà itshouldcomenaturalandwithrealinterestItalsohelpstobefriendswithveryoutgoingpeople.

MostConnectionsAreMadeOutsidetheVenue

LessonX:Rankingsmatter,butonlytoacertaindegreeIntheUS,everythingiscenteredaroundtheUSNewsRankingWhydoesitmatter:students!!!!But,imho:

LessonX:Rankingsmatter,butonlytoacertaindegreeIntheUS,everythingiscenteredaroundtheUSNewsRankingWhydoesitmatter:students!!!!But,imho:1. Yourresearchgroupcountsmorethanthe

institution

LessonX:Rankingsmatter,butonlytoacertaindegreeIntheUS,everythingiscenteredaroundtheUSNewsRankingWhydoesitmatter:students!!!!But,imho:1. Yourresearchgroupcountsmorethanthe

institution2. Youradvisor countsmorethantheresearch

group

LessonX:Rankingsmatter,butonlytoacertaindegreeIntheUS,everythingiscenteredaroundtheUSNewsRankingWhydoesitmatter:students!!!!But,imho:1. Yourresearchgroupcountsmorethanyour

institution2. Youradvisor countsmorethanyourresearch

group3. Yourhappiness countsmorethanyouradvisor

LessonX:Rankingsmatter,butonlytoacertaindegreeIntheUS,everythingiscenteredaroundtheUSNewsRankingWhydoesitmatter:students!!!!But,imho:1. Yourresearchgroupcountsmorethanyour

institution2. Youradvisor countsmorethanyourresearch

group3. Yourhappiness countsmorethanyouradvisorMyexample:

vs.

LessonXI:LookfortherightCollaborators• You,asasingleperson,donotscale• Onewaytoscaleis,havealotofcollaboratorsyoucantrust• Important:Ithastobeamutualcollaboration• Ifyouevaluateaplace,considerpeoplewhoyoucouldcollaboratewith.Especially,lookfor• Theycollaborations inthepast• Trytotalktobothparties• Doyougetalong?Doesitclick?

• Butkeepinmind:intheend successfulcollaborationshappenbecauseyoulikeeachotherandtheyarenormallynevertheonesyouplannedtohave.

Students,students,students,…

ChapterIII

• Managingbachelor students• Managingmaster students• ManagingPhD students• Managinginterns

LessonXII:Studentsareyourmostvaluableasset• PhDstudents,Masterstudents,bachelorstudents,…• Carefullyselectthem• Spendtimeonthepromisingonesandlessontheothers (note,thatthisisverycontroversial)• Trytofindyourbalancebetweenhands-onandhands-off

Dangeroftoohands-on

• Theymightgetfrustrated• Ittakesupalotofyourtime

Dangeroftoohands-off• Ittakesmuchlonger• itendsupinengineeringratherthanresearch• ittakesmoreiterations(e.g.,re-submissions)• Thetopicderails• Ifthetopicderailstoomuch,itmightnotfitwithyourfundinganymore

Example:Letsassumeyougiveastudentatasktodesignanactionfigurewaterpistol

AcademicJobRamp-Up

Mysuggestion:alwayspostponetostartyouracademicjobinspring notfall.• YoucanbeinvolvedinthePhDhiring(happeninginspring).• Youminimizethetimewithoutstudents(fallsemester)• Youcanfinishsomeofyourpreviousworkwithoutstartingthetenureclock orsimplytaketimeofftogetreadyforbeingaprofessor

Work/LifeBalance

ChapterIV

NNoonn--LLeessssoonn::IIssttiillllddoonnoottkknnoowwhhoowwttooddooiitt

Whybeingaprofessoris(oneof)thebestjobs

ChapterIV

Flexibility

Freedom

Travel

http://kingofwallpapers.com/travel/travel-022.jpg

Community

Startups

ThankYouTimKraska<[email protected]>

Wedohaveseveralintern(paid6-12month),PhD,andpostdocpositionsavailable

Vldb PhD workshop 2016

Education

Transcript of Vldb PhD workshop 2016