the-algorithm/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/OutOfNetworkCompetitorURLFilter.scala
twitter-team ef4c5eb65e Twitter Recommendation Algorithm
Please note we have force-pushed a new initial commit in order to remove some publicly-available Twitter user information. Note that this process may be required in the future.
2023-03-31 17:36:31 -05:00

38 lines
1.8 KiB
Scala

package com.twitter.home_mixer.functional_component.filter
import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
import com.twitter.home_mixer.model.HomeFeatures.TweetUrlsFeature
import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CompetitorURLSeqParam
import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
import com.twitter.product_mixer.core.functional_component.filter.Filter
import com.twitter.product_mixer.core.functional_component.filter.FilterResult
import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
import com.twitter.product_mixer.core.pipeline.PipelineQuery
import com.twitter.stitch.Stitch
object OutOfNetworkCompetitorURLFilter extends Filter[PipelineQuery, TweetCandidate] {
override val identifier: FilterIdentifier = FilterIdentifier("OutOfNetworkCompetitorURL")
override def apply(
query: PipelineQuery,
candidates: Seq[CandidateWithFeatures[TweetCandidate]]
): Stitch[FilterResult[TweetCandidate]] = {
val competitorUrls = query.params(CompetitorURLSeqParam).toSet
val (removed, kept) = candidates.partition(hasOutOfNetworkUrlFromCompetitor(_, competitorUrls))
Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
}
def hasOutOfNetworkUrlFromCompetitor(
candidate: CandidateWithFeatures[TweetCandidate],
competitorUrls: Set[String]
): Boolean = {
!candidate.features.getOrElse(InNetworkFeature, true) &&
!candidate.features.getOrElse(IsRetweetFeature, false) &&
candidate.features.get(TweetUrlsFeature).toSet.intersect(competitorUrls).nonEmpty
}
}