notesum.ai
Published at October 22Beyond Retrieval: Generating Narratives in Conversational Recommender Systems
cs.CL
cs.AI
Released Date: October 22, 2024
Authors: Krishna Sayana1, Raghavendra Vasudeva1, Yuri Vasilevski1, Kun Su1, Liam Hebert1, Hubert Pham1, Ambarish Jash1, Sukhdeep Sodhi1
Aff.: 1Google Research, Mountain View, California, USA

| Output Feature | Metrics | CF | Content | CF + Content | (%) vs CF | (%) vs Content |
|---|---|---|---|---|---|---|
| Purchase reason | BLEU | 17.71 | 21.07 | 21.92 | +23.8% | +4.0% |
| ROUGE-LSum | 38.26 | 42.63 | 43.01 | +12.4% | +0.9% | |
| Similarity | 0.614 | 0.664 | 0.669 | +9.0% | +0.8% | |
| Purchase reason explanation | BLEU | 19.56 | 21.68 | 24.24 | +23.9% | 11.8% |
| ROUGE-LSum | 37.26 | 38.05 | 41.11 | +10.3% | +8.0% | |
| Similarity | 0.783 | 0.787 | 0.851 | +8.7% | 8.1% | |
| User Summary (Brief) | BLEU | 17.96 | 19.3 | 19.12 | +6.5% | -0.9% |
| ROUGE-LSum | 36.5 | 38.06 | 38.16 | +4.5% | +0.3% | |
| Similarity | 0.861 | 0.866 | 0.864 | +0.3% | -0.2% | |
| User Summary (Long) | BLEU | 16.96 | 18.07 | 18.09 | +6.7% | +0.1% |
| ROUGE-LSum | 31.61 | 33.35 | 33.42 | +5.7% | +0.2% | |
| Similarity | 0.885 | 0.895 | 0.903 | +2.0% | +0.9% |