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arXiv 2202.02056cs.SIcs.LG
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土耳其媒体新闻消费的无监督行为分析

Unsupervised Behaviour Analysis of News Consumption in Turkish Media

Demirören Teknoloji A.S.(德米伦科技公司);Istanbul Technical University(伊斯坦布尔技术大学)

Didem Makaroglu, Altan Cakir, Behcet Ugur Toreyin

摘要:

随着新闻媒体数字化的发展,点击流数据已经成为新闻编辑室识别读者特征的一个重要特征,点击流数据是由网站上的人类活动产生的。虽然点击流数据的性质在网站中具有类似的逻辑,但从广泛的角度来看,它在识别人类行为方面具有固有的局限性,这就需要将问题限制在利基领域。本研究调查了匿名读者在组织网站上的点击活动,以确定从Twitter转介后的新闻消费模式,他们偶然到达,但倾向主要是路由的新闻内容。集成聚类分析与混合型嵌入策略的方法和比较,找到类似的读者群体和兴趣独立于时间。各种内部验证的角度来确定最优的集群的质量,其中的Calinski Harabasz指数(CHI)被发现给一个概括的结果。我们的研究结果表明,对混合类型数据集进行聚类接近最佳内部验证分数,我们定义该分数以区分聚类和算法,考虑嵌入均匀流形近似和投影(UMAP)时的应用策略,并使用共识函数作为访问给定集合中最适用的超参数配置的关键,而不是直接使用共识函数结果。对所得到的聚类的评估通过大于0.5的经调整的互信息分数突出显示了在分离的月度样本中重复存在的特定聚类,这为新闻机构提供了见解,并克服了由于随着时间的推移兴趣的变化而导致的建模行为的退化。

英文摘要:

Clickstream data, which come with a massive volume generated by human activities on websites, have become a prominent feature for identifying readers' characteristics by newsrooms after the digitization of news outlets. Although the nature of clickstream data has a similar logic within websites, it has inherent limitations in recognizing human behaviours when looking from a broad perspective, which brings the need to limit the problem in niche areas. This study investigates the anonymized readers' click activities on the organizations' websites to identify news consumption patterns following referrals from Twitter,who incidentally reach but propensity is mainly routed news content. Methodologies for ensemble cluster analysis with mixed-type embedding strategies are applied and compared to find similar reader groups and interests independent of time. Various internal validation perspectives are used to determine the optimality of the quality of clusters, where the Calinski Harabasz Index (CHI) is found to give a generalizable result. Our findings demonstrate that clustering a mixed-type dataset approaches the optimal internal validation scores, which we define to discriminate the clusters and algorithms considering applied strategies when embedded by Uniform Manifold Approximation and Projection (UMAP) and using a consensus function as a key to access the most applicable hyperparameter configurations in the given ensemble rather than using consensus function results directly. Evaluation of the resulting clusters highlights specific clusters repeatedly present in the separated monthly samples by Adjusted Mutual Information scores greater than 0.5, which provide insights to the news organizations and overcome the degradation of the modeling behaviours due to the change in the interest over time.

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