Test with very similar books, use weights

closestmatch.go

@@ -81,12 +81,12 @@ func (cm *ClosestMatch) worker(id int, jobs <-chan job, results chan<- result) {
 	for j := range jobs {
 		m := make(map[string]int)
 		if ids, ok := cm.SubstringToID[j.substring]; ok {
-			weight := 200000 / len(ids)
+			weight := 1000 / len(ids)
 			for id := range ids {
 				if _, ok2 := m[cm.ID[id].Key]; !ok2 {
 					m[cm.ID[id].Key] = 0
 				}
-				m[cm.ID[id].Key] += 1 + 0*weight
+				m[cm.ID[id].Key] += 1000/len(cm.ID[id].Key) + weight
 			}
 		}
 		results <- result{m: m}

closestmatch_test.go

@@ -121,6 +121,34 @@ func ExampleMatchingBigList() {
 	// island of a thousand mirrors by nayomi munaweera
 }
 
+func ExampleMatchingCatcher() {
+	bText, _ := ioutil.ReadFile("test/catcher.txt")
+	wordsToTest := strings.Split(strings.ToLower(string(bText)), "\n")
+	cm := New(wordsToTest, []int{5})
+	searchWord := "catcher in the rye by jd salinger"
+	for i, match := range cm.ClosestN(searchWord, 3) {
+		if i == 2 {
+			fmt.Println(match)
+		}
+	}
+	// Output:
+	// the catcher in the rye by j.d. salinger
+}
+
+func ExampleMatchingPotter() {
+	bText, _ := ioutil.ReadFile("test/potter.txt")
+	wordsToTest := strings.Split(strings.ToLower(string(bText)), "\n")
+	cm := New(wordsToTest, []int{5})
+	searchWord := "harry potter and the half blood prince by j.k. rowling"
+	for i, match := range cm.ClosestN(searchWord, 3) {
+		if i == 1 {
+			fmt.Println(match)
+		}
+	}
+	// Output:
+	//  harry potter and the order of the phoenix (harry potter, #5, part 1) by j.k. rowling
+}
+
 func TestAccuracyBookWords(t *testing.T) {
 	bText, _ := ioutil.ReadFile("test/books.list")
 	wordsToTest := strings.Split(strings.ToLower(string(bText)), "\n")

test/catcher.txt

@@ -0,0 +1,44 @@
+The Catcher in the Rye by J.D. Salinger Student Packet Grades 9-12 (Novel Units Guides) by Gloria Levine
+The Catcher in the Rye by J.D. Salinger: A Study Guide by Ray Moore
+A Reader's Companion to J.D. Salinger's the Catcher in the Rye by Peter Beidler
+A Reader's Companion To J.D. Salinger's The Catcher In The Rye by Peter G. Beidler
+Depression in J.D. Salinger's The Catcher in the Rye by Dedria Bryfonski
+Critica; Insights: The Catcher in the Rye, by J.D. Salinger by Joseph Dewey
+The Catcher in the Rye/Franny and Zooey/Nine Stories/Raise High the Roof Beam, Carpenters by J.D. Salinger
+The Catcher in the Rye by J. D. Salinger Summary & Study Guide by BookRags
+The Catcher in the Rye and J.D. Salinger by Jonathan Coupland
+Monarch Notes: J. D. Salinger's The Catcher in the Rye by Laurie E. Rozakis
+J. D. Salinger: The Catcher In The Rye by Brian Donnelly
+A Reader's Companion to J. D. Salinger's The Catcher in the Rye by Peter Beidler
+Jerome D. Salinger, The Catcher In The Rye by Hans-Otto Jahnke
+Robert Cormier, I Am The Cheese, J. D. Salinger, The Catcher In The Rye by Peter Jone
+The Catcher in the Rye by Jerome Salinger
+J.D. Salinger: The Catcher In The Rye (Barron's Studies in American Literature) by Richard Lettis
+J.D. Salinger: The Catcher in the Rye and Other Works by Raychel Haugrud Reiff
+The Catcher in the Rye: A Reader's Guide to the J.D. Salinger Novel by Robert Crayola
+The Catcher In The Rye, De J.D. Salinger by Claire Bernas-Martel
+J.D. Salinger's The Catcher in the Rye by Harold Bloom (Bloom's Modern Critical Interpretations)
+J.D. Salingers 'The Catcher in the Rye.' Materialien. (Lernmaterialien) by Herbert Rühl
+Cliffs Notes on Salinger's the Catcher in the Rye by Robert B. Kaplan
+Cliffs Notes on Salinger's The Catcher in the Rye by Stanley P. Baldwin
+J. D. Salinger's the Catcher in the Rye: A Routledge Guide by Sarah Graham
+The Catcher in the Rye - and Salinger by Jerome Smith
+The Catcher in the Rye and Salinger by Jonathan Coupland
+Catcher In The Rye, J.D. Salinger by Nigel Tookey
+The Catcher in the Rye and JD Salinger by Andrew Hastings
+The Catcher in the Rye Guide and Other Works of JD Salinge by Peter Baxter
+The Catcher in the Rye by Joy Leavitt
+New Essays on the Catcher in the Rye by Jack Salzman
+Salinger's The Catcher in the Rye (Reader's Guides) by Sarah Graham
+The Catcher in the Rye by Shmoop
+The Catcher in the Rye - A - Z by Jecks Stapley
+The Candidate in the Rye: A Parody of The Catcher in the Rye Starring Donald J. Trump by John Marquane
+Readings on the Catcher in the Rye (Literary Companion Series) by Steven Engel
+The Catcher In The Rye; Owlsgate 35s Study Guide by David Neilson
+The Catcher in the Rye (A BookHacker Summary) by BookHacker
+The Catcher in the Rye - Barron's Book Notes by Barron's Book Notes
+The Catcher in the Rye (SparkNotes Literature Guide) by SparkNotes
+The Catcher in the Rye (Study Guide) by Minute Help Guides
+The Catcher in the Rye (York Notes) by Nigel Tookey
+Masterwork Studies Series: The Catcher in the Rye (Paperback) by Sanford Pinsker
+The Catcher in the Rye by J.D. Salinger

test/potter.txt

@@ -0,0 +1,22 @@
+ Harry Potter And The Half Blood Prince Deluxe Gift Book by BBC
+ Harry Potter and the Half Blood Prince: The Interactive Quiz Book (The Harry Potter Series.) by Julia Reed
+ Harry Potter And The Half Blood Prince: Poster Annual 2010 by BBC
+ Harry Potter And The Half Blood Prince: (Piano Solo) by Nicholas Hooper
+ Harry Potter and the Half-Blood Prince by Shmoop
+ Garri Potter i Princ Polukrovka / Harry Potter and the Half-Blood Prince [IN RUSSIAN] by Rouling Dzh.
+ Mark Reads Harry Potter and the Half-Blood Prince by Mark Oshiro (Mark Reads Harry Potter #6)
+ Harry Potter Films (Film Guide): Harry Potter and the Order of the Phoenix, List of Harry Potter Cast Members, Harry Potter and the Half-Blood Prince, by Books Group
+ Selections from Harry Potter and the Half-Blood Prince: Piano Solos by Songbook
+ Harry Potter and the Half-Blood Prince: Movie Poster Book by Scholastic
+ The Ultimate Unofficial Harry Potter® Trivia Book: Secrets, Mysteries And Fun Facts Including Half Blood Prince Book 6 by Daniel Lawrence
+ Unauthorized Half-Blood Prince Update: News and Speculation about Harry Potter Book Six by J. K. Rowling by W. Frederick Zimmerman
+ Harry Potter and the Sorcerer's Stone: Book 1 - Novel by J.K Rowling -- Summary & More! by Ez- Summary
+ Harry Potter and the Goblet of Fire by J. K. Rowling | Chapter Outlines by BookRags
+ Harry Potter and the Order of the Court: The J.K. Rowling Copyright Case and the Question of Fair Use by Robert S. Want
+ Harry Potter And The Order Of Phoenix: A Summary About This Novel Of J.K Rowling!! (Harry Potter And The Order Of Phoenix: A Detailed Summary-- Book 5, Box Set, Novel, Rowling) by The Summary Guy
+ Harry Potter and the Charming Prince by slashpervert (The Bound Prince #7)
+ Myths and Symbols in J.K. Rowling's Harry Potter and the Philosopher's Stone by Volker Geyer
+ Harry Potter and the Order of the Phoenix (Harry Potter, #5, Part 1) by J.K. Rowling
+ Harry Potter and the Order of the Phoenix by J. K. Rowling | Chapter Outlines by BookRags
+ Buchspicker: Übersetzungshilfe Zu "Harry Potter And The Deathly Hallows" (Harry Potter 7): Ausgewählte Vokabeln Für Jede Seite Des Romans Von J.K. Rowling by Thorsten Hinrichsen
+ Buchspicker: Übersetzungshilfe zu "Harry Potter and the philosopher's stone" und "Harry Potter and the chamber of secrets" (Harry Potter 1 + 2) ausgewählte Vokabeln für jede Seite der Romane von J. K. Rowling by Thorsten Hinrichsen