adding configuration for max similarity score

Author: wjohnsto

services/video-search/src/api/search.ts

@@ -53,6 +53,9 @@ export default function initialize({
             question,
         });
 
+        /**
+         * Scores will be between 0 and 1, where 0 is most accurate and 1 is least accurate
+         */
         const [result] = await answerVectorStore.similaritySearchWithScore(
             question,
             1,
@@ -64,7 +67,7 @@ export default function initialize({
                 score: result[1],
             });
 
-            if (result[1] < 0.2) {
+            if (result[1] < config.searches.maxSimilarityScore) {
                 log.debug(`Found answer to question ${question}`, {
                     location: `${prefix}.search.getAnswer`,
                 });

services/video-search/src/config.ts

@@ -52,6 +52,7 @@ export default {
     },
     searches: {
         KNN: 3,
+        maxSimilarityScore: 0.2,
         answerCache: true,
     },
     log: {