TY - JOUR AU - Gurukar, Saket AU - Ajwani, Deepak AU - Dutta, Sourav AU - Lauri, Juho AU - Parthasarathy, Srinivasan AU - Sala, Alessandra PY - 2020/05/26 Y2 - 2024/03/29 TI - Towards Quantifying the Distance between Opinions JF - Proceedings of the International AAAI Conference on Web and Social Media JA - ICWSM VL - 14 IS - 1 SE - Full Papers DO - 10.1609/icwsm.v14i1.7294 UR - https://ojs.aaai.org/index.php/ICWSM/article/view/7294 SP - 229-239 AB - <p>Increasingly, critical decisions in public policy, governance, and business strategy rely on a deeper understanding of the needs and opinions of constituent members (e.g. citizens, shareholders). While it has become easier to collect a large number of opinions on a topic, there is a necessity for automated tools to help navigate the space of opinions. In such contexts understanding and quantifying the similarity between opinions is key. We find that measures based solely on text similarity or on overall sentiment often fail to effectively capture the distance between opinions. Thus, we propose a <em>new distance measure</em> for capturing the similarity between opinions that leverages the nuanced observation – <em>similar opinions express similar sentiment polarity on specific relevant entities-of-interest</em>. Specifically, in an unsupervised setting, our distance measure achieves significantly better Adjusted Rand Index scores (up to 56x) and Silhouette coefficients (up to 21x) compared to existing approaches. Similarly, in a supervised setting, our opinion distance measure achieves considerably better accuracy (up to 20% increase) compared to extant approaches that rely on text similarity, stance similarity, and sentiment similarity.</p> ER -