1 files changed, 49 insertions, 24 deletions

diff --git a/scalding/src/main/scala/sandcrawler/HBaseCrossrefScoreJob.scala b/scalding/src/main/scala/sandcrawler/HBaseCrossrefScoreJob.scala
index 7e10c43..714af36 100644
--- a/scalding/src/main/scala/sandcrawler/HBaseCrossrefScoreJob.scala
+++ b/scalding/src/main/scala/sandcrawler/HBaseCrossrefScoreJob.scala
@@ -3,6 +3,7 @@ package sandcrawler
 import java.util.Arrays
 import java.util.Properties
 
+import scala.math
 import scala.util.parsing.json.JSON
 
 import cascading.tuple.Fields
@@ -17,11 +18,9 @@ import parallelai.spyglass.hbase.HBaseConstants.SourceMode
 import parallelai.spyglass.hbase.HBasePipeConversions
 import parallelai.spyglass.hbase.HBaseSource
 
-class HBaseCrossrefScoreJob(args: Args) extends JobBase(args) with
-    HBasePipeConversions {
+class HBaseCrossrefScoreJob(args: Args) extends JobBase(args) with HBasePipeConversions {
   val NoTitle = "NO TITLE" // Used for slug if title is empty or unparseable
 
-  /*
   // key is SHA1
   val grobidSource = HBaseCrossrefScore.getHBaseSource(
     args("hbase-table"),
@@ -29,13 +28,14 @@ class HBaseCrossrefScoreJob(args: Args) extends JobBase(args) with
   val grobidPipe : TypedPipe[(String, String, String)] = grobidSource
     .read
     .fromBytesWritable(new Fields("key", "tei_json"))
-    .debug  // Should be 4 tuples for mocked data
+    //  .debug  // Should be 4 tuples for mocked data
     .toTypedPipe[(String, String)]('key, 'tei_json)
     .map { entry =>
       val (key, json) = (entry._1, entry._2)
+      // TODO: Consider passing forward only a subset of JSON.
       HBaseCrossrefScore.grobidToSlug(json) match {
-          case Some(slug) => (slug, key, json)
-          case None => (NoTitle, key, json)
+        case Some(slug) => (slug, key, json)
+        case None => (NoTitle, key, json)
       }
     }
     .filter { entry =>
@@ -46,15 +46,12 @@ class HBaseCrossrefScoreJob(args: Args) extends JobBase(args) with
 
   val grobidGroup = grobidPipe
     .groupBy { case (slug, key, json) => slug }
-   */
 
   val crossrefSource = TextLine(args("crossref-input"))
-  val crossrefPipe : TypedPipe[String] = crossrefSource
+  val crossrefPipe : TypedPipe[(String, String)] = crossrefSource
     .read
-    .debug // Should be 4 tuples for mocked data
+    //    .debug // Should be 4 tuples for mocked data
     .toTypedPipe[String]('line)
-  /*
-    .map{line : String => (line, "foo")}
     .map{ json : String =>
       HBaseCrossrefScore.crossrefToSlug(json) match {
         case Some(slug) => (slug, json)
@@ -65,26 +62,21 @@ class HBaseCrossrefScoreJob(args: Args) extends JobBase(args) with
       val (slug, json) = entry
       slug != NoTitle
     }
-   */
-    .write(TypedTsv[String](args("output")))
 
-
-  /*
   val crossrefGroup = crossrefPipe
   .groupBy { case (slug, json) => slug }
 
-  // TODO: Figure out which is smaller.
-  val theJoin : CoGrouped[String, ((String, String, String), (String, String))] = 
+  val theJoin : CoGrouped[String, ((String, String, String), (String, String))] =
     grobidGroup.join(crossrefGroup)
 
   theJoin.map{ entry =>
-        val (slug : String, 
-          ((slug0: String, sha1 : String, grobidJson : String), 
-            (slug1 : String, crossrefJson : String))) = entry
-        // TODO: For now, output it all.
-        (slug, slug0, slug1, sha1, grobidJson, crossrefJson)}
-      .write(TypedTsv[(String, String, String, String, String, String)](args("output")))
-   */
+    val (slug : String,
+      ((slug0: String, sha1 : String, grobidJson : String),
+        (slug1 : String, crossrefJson : String))) = entry
+    HBaseCrossrefScore.computeOutput(sha1, grobidJson, crossrefJson)}
+    .debug
+  // Output: score, sha1, doi, grobid title, crossref title
+    .write(TypedTsv[(Int, String, String, String, String)](args("output")))
 
 }
 
@@ -137,4 +129,37 @@ object HBaseCrossrefScore {
       Some(slug)
     }
   }
+
+  val FullTitleMatch = 100
+  val TitleLeftMatchBase = 50
+  val MaxTitleLeftMatch = 80
+  val SlugMatch = 25
+
+  def computeSimilarity(gTitle : String, cTitle : String) : Int = {
+    assert(titleToSlug(gTitle) == titleToSlug(cTitle))
+    if (gTitle == cTitle) {
+      FullTitleMatch
+    } else if (gTitle.startsWith(cTitle) || cTitle.startsWith(gTitle)) {
+      math.min(TitleLeftMatchBase + math.abs(gTitle.length - cTitle.length),
+        MaxTitleLeftMatch)
+    } else {
+      SlugMatch
+    }
+  }
+
+  def computeOutput(sha1 : String, grobidJson : String, crossrefJson : String) :
+    // (score, sha1, doi, grobidTitle, crossrefTitle)
+      (Int, String, String, String, String) = {
+    // JSON has already been validated in previous stages.
+    val grobid = jsonToMap(grobidJson)
+    val crossref = jsonToMap(crossrefJson)
+
+    val grobidTitle = grobid("title").asInstanceOf[String].toLowerCase()
+    val crossrefTitle = crossref("title").asInstanceOf[List[String]](0).toLowerCase()
+    (computeSimilarity(grobidTitle, crossrefTitle),
+      sha1,
+      crossref("DOI").asInstanceOf[String],
+      "'" + grobidTitle + "'",
+      "'" + crossrefTitle + "'")
+  }
 }