论文标题
场景图修改作为增量结构扩展
Scene Graph Modification as Incremental Structure Expanding
论文作者
论文摘要
场景图是一种语义表示，表达场景中对象之间的对象，属性和关系。场景图在许多交叉模态任务中起着重要的作用，因为它们能够捕获图像和文本之间的交互作用。在本文中，我们关注场景图修改（SGM），其中需要系统来学习如何基于自然语言查询更新现有场景图。与以前重建整个场景图的方法不同，我们通过引入增量结构扩展（ISE）来将SGM作为图形扩展任务。 ISE通过逐步扩展源图来构建目标图，而无需更改未修改的结构。基于ISE，我们进一步提出了一个模型，该模型在节点预测和边缘预测之间迭代，从而逐渐推断出更准确和和谐的扩展决策。此外，我们构建了一个具有挑战性的数据集，该数据集包含比现有数据集更复杂的查询和更大的场景图。四个基准的实验证明了我们的方法的有效性，该方法超过了大幅度的先前最新模型。
A scene graph is a semantic representation that expresses the objects, attributes, and relationships between objects in a scene. Scene graphs play an important role in many cross modality tasks, as they are able to capture the interactions between images and texts. In this paper, we focus on scene graph modification (SGM), where the system is required to learn how to update an existing scene graph based on a natural language query. Unlike previous approaches that rebuilt the entire scene graph, we frame SGM as a graph expansion task by introducing the incremental structure expanding (ISE). ISE constructs the target graph by incrementally expanding the source graph without changing the unmodified structure. Based on ISE, we further propose a model that iterates between nodes prediction and edges prediction, inferring more accurate and harmonious expansion decisions progressively. In addition, we construct a challenging dataset that contains more complicated queries and larger scene graphs than existing datasets. Experiments on four benchmarks demonstrate the effectiveness of our approach, which surpasses the previous state-of-the-art model by large margins.
