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scrum master scrum product owner spark spark sql »åé±¹±ð±ô´Ç±è±è±ð³Ü°ù²õ daily scrum transparence transformation spark ml action mapfilter reduce foreach spark graphx count spark streaming tuple patterns matching on immutable collection wildcard pattern pattern alternative pattern matching typed patterns guards in case clauses nested pattern matching in case classes matching o matching on list matching on case class catalyst optimizer vue temporaire sqlimplicits sparksession apache spark sparksql apache spark sql row datasource operation dataset dataframereader take filter join spark core opération spark collect map rdd closure function composition functional programming nested functions anonymous function ³¦±ôô³Ù³Ü°ù±ð référence de méthode functional interface defender methods java 8 method reference java functional interface méthode par défaut default methods in interfaces lambda expression méthodes par défaut default methods java.util.function method references syntax of lambda expressions countbykey first pattern guards matching on option pattern matching and recursive function basic pattern matching filtrage par motif fonction anonyme fonction pure programmation fonctionnelle curried function tail calls and tail call optimization curryfication °ù鳦³Ü°ù²õ¾±±¹¾±³Ùé pure function fonction d’ordre supérieur first class function function literal functional thinking fonction partielle °ù鳦³Ü°ù²õ¾±±¹¾±³Ùé terminale product backlog artefacts developers roles courage respect ouverture focus engagement valeurs ²¹»å²¹±è³Ù²¹²ú¾±±ô¾±³Ùé inspection piliers la pensée lean ±ô’e³¾±è¾±°ù¾±²õ³¾±ð principes de scrum clause where create clauses relationship bonnes pratiques product owner règles inspection scrum team adaptation synchronisation evenments rôles livrables parties prenantes scrum team ²¹²µ¾±±ô¾±³Ùé adapation artefacts scrum inspection gaol sprint increment sprint backlog sprint retrospective product backlog sprint review sprint planning sprint événements scrum minmaxscaler pipeline n-gram tokenization evaluation d'une méthode d'apprentissage cross validation normalizer spark mlib validation croisée evalution d'une méthode ml workflow ml transformer stringindexer binarization sql ast dataframe requête sql column hive dataframewriter clause merge label constraint clause with match index motif pattern node cql noeud noe4j nosql lien cypher relation pipelinestage transformateur estimator estimateur lambda syntax