return new QueryRescorerBuilder(
                QueryBuilders.functionScoreQuery(ScoreFunctionBuilders.randomFunction().seed(seed).setField("_seq_no"))).setQueryWeight(0)
                .setRescoreQueryWeight(1);
    }

    protected PopularWordsResponse createResponse(final SearchResponse searchResponse) {
        final SearchHit[] hits = searchResponse.getHits().getHits();