利用维基百科同义词知识提升内容定向广告匹配性能

PDF格式 | 1.3MB | 更新于2024-07-15 | 110 浏览量 | 0 下载量 举报
收藏
本文探讨了"改进基于维基百科词典知识的上下文广告匹配"这一主题,针对Web广告业中普遍存在的挑战——同义词和多义性问题,以及传统关键词匹配技术在处理上下文匹配和为用户提供相关广告方面的不足。论文的主要作者是Guandong Xu、Zongda Wu、Guiling Li 和 Enhong Chen,他们于2013年2月18日提交了最初的研究,并在2014年1月14日进行了修订,最终于同年3月22日接受发表,被收录在KnowlInfSyst期刊,DOI为10.1007/s10115-014-0745-z。 传统的关键词匹配方法往往受限于词汇表中的低交集和缺乏充分的语义理解,导致广告选择效果不理想,用户可能无法看到与网页内容最相关的信息。为解决这些问题,作者提出了一种新的上下文广告策略。该方法的核心在于利用维基百科词典知识来增强目标页面(或广告)的语义表达。首先,他们将每个网页转换为一个关键词向量,这是一个关键步骤,因为它将文本内容转换为数值形式,便于计算机处理。 在这个过程中,作者引入了两个额外的特征:一是基于维基百科中词汇之间的关系(如同义词、反义词或上下位词等),通过词典知识网络扩展关键词的含义范围,提高广告的相关性;二是可能结合机器学习算法,如TF-IDF(Term Frequency-Inverse Document Frequency,词频-逆文档频率)或者Word2Vec等,来捕捉单词之间的语义关联,以便更准确地识别广告与上下文的匹配度。 通过这种维基词典知识融合的策略,论文作者旨在提升广告的匹配精度,减少同义词带来的歧义,从而提高用户的点击率,提供更好的用户体验。这项工作对于广告投放平台优化广告展示策略,以及搜索引擎和内容提供商改进内容相关广告推荐系统具有重要意义,为解决自然语言处理领域中的语义理解难题提供了新的视角和方法。

相关推荐

filetype

Compared with homogeneous network-based methods, het- erogeneous network-based treatment is closer to reality, due to the different kinds of entities with various kinds of relations [22– 24]. In recent years, knowledge graph (KG) has been utilized for data integration and federation [11, 17]. It allows the knowledge graph embedding (KGE) model to excel in the link prediction tasks [18, 19]. For example, Dai et al. provided a method using Wasser- stein adversarial autoencoder-based KGE, which can solve the problem of vanishing gradient on the discrete representation and exploit autoencoder to generate high-quality negative samples [20]. The SumGNN model proposed by Yu et al. succeeds in inte- grating external information of KG by combining high-quality fea- tures and multi-channel knowledge of the sub-graph [21]. Lin et al. proposed KGNN to predict DDI only based on triple facts of KG [66]. Although these methods have used KG information, only focusing on the triple facts or simple data fusion can limit performance and inductive capability [69]. Su et al. successively proposed two DDIs prediction methods [55, 56]. The first one is an end-to-end model called KG2ECapsule based on the biomedical knowledge graph (BKG), which can generate high-quality negative samples and make predictions through feature recursively propagating. Another one learns both drug attributes and triple facts based on attention to extract global representation and obtains good performance. However, these methods also have limited ability or ignore the merging of information from multiple perspectives. Apart from the above, the single perspective has many limitations, such as the need to ensure the integrity of related descriptions, just as network-based methods cannot process new nodes [65]. So, the methods only based on network are not inductive, causing limited generalization [69]. However, it can be alleviated by fully using the intrinsic property of the drug seen as local information, such as chemical structure (CS) [40]. And a handful of existing frameworks can effectively integrate multi-information without losing induction [69]. Thus, there is a necessity for us to propose an effective model to fully learn and fuse the local and global infor- mation for improving performance of DDI identification through multiple information complementing.是什么意思

139 浏览量