Online advertisements have a significant influence over the success or failure of your business.Therefore,it is important to somehow measure the impact of your advertisement before uploading it online,and this is can ...Online advertisements have a significant influence over the success or failure of your business.Therefore,it is important to somehow measure the impact of your advertisement before uploading it online,and this is can be done by calculating the Click Through Rate(CTR).Unfortunately,this method is not eco-friendly,since you have to gather the clicks from users then compute the CTR.This is where CTR prediction come in handy.Advertisement CTR prediction relies on the users’log regarding click information data.Accurate prediction of CTR is a challenging and critical process for e-advertising platforms these days.CTR prediction uses machine learning techniques to determine how much the online advertisement has been clicked by a potential client:The more clicks,the more successful the ad is.In this study we develop a machine learning based click through rate prediction model.The proposed study defines a model that generates accurate results with low computational power consumption.We used four classification techniques,namely K Nearest Neighbor(KNN),Logistic Regression,Random Forest,and Extreme Gradient Boosting(XGBoost).The study was performed on the Click-Through Rate Prediction Competition Dataset.It is a click-through data that is ordered chronologically and was collected over 10 days.Experimental results reveal that XGBoost produced ROC-AUC of 0.76 with reduced number of features.展开更多
新闻点击率预估是个性化新闻推荐的关键技术之一。针对现有新闻点击率预估方法忽略新闻全局特征建模及信息压缩导致语义丢失的问题,提出融合多模态和长短期历史行为的新闻点击率预估模型(MLSTH:Multimodal and Long-Short Term Historic...新闻点击率预估是个性化新闻推荐的关键技术之一。针对现有新闻点击率预估方法忽略新闻全局特征建模及信息压缩导致语义丢失的问题,提出融合多模态和长短期历史行为的新闻点击率预估模型(MLSTH:Multimodal and Long-Short Term Historical Behavior News Click-Through Rate Prediction)。MLSTH主要包括新闻编码和用户编码两部分。在新闻编码中,首先利用预训练模型对新闻多模态特征编码;然后,基于跨模态注意力构建视觉语义融合模块分别得到全局特征信息和局部特征信息;最后,将得到的局部特征和全局特征拼接,作为多模态新闻编码。通过在公开数据集V-MIND上验证,与现有多模态模型MMRec, VLSNR,IM-Rec相比较,AUC平均提升1.68%,2.54%和2.36%,证明了其有效性和优越性。展开更多
点击率(CTR)预测通过预测用户对广告或商品的点击概率,实现数字广告精准推荐。针对现有CTR模型存在原始嵌入向量未精化、特征交互方式偏简单的问题,本文提出自注意力深度域嵌入因子分解机(self-attention deep field-embedded factoriza...点击率(CTR)预测通过预测用户对广告或商品的点击概率,实现数字广告精准推荐。针对现有CTR模型存在原始嵌入向量未精化、特征交互方式偏简单的问题,本文提出自注意力深度域嵌入因子分解机(self-attention deep field-embedded factorization machine,Self-AtDFEFM)模型。首先,通过多头自注意力对原始嵌入向量加权,精化出关键低层特征;其次,构建深度域嵌入因子分解机(FEFM)模块,设计域对对称矩阵以提升不同特征域之间的交互强度,为高阶特征交互优选出低阶特征组合;再次,基于低阶特征组合构建深度神经网络(DNN),完成隐式高阶特征交互;然后,围绕精化后的嵌入向量,联合多头自注意力与残差机制堆叠多个显式高阶特征交互层,通过自注意力捕获同一特征在不同子空间上的互补信息,完成显示高阶特征交互;最后,联合显式与隐式高阶特征交互实现点击率预测。在Criteo和Avazu两大公开数据集上,将Self-AtDFEFM模型与主流基线模型在AUC和LogLoss指标上进行对比实验;为Self-AtDFEFM模型调制显式高阶特征交互层层数、注意力头数量、嵌入层维度及隐式高阶特征交互层层数等参数;对Self-AtDFEFM模型进行消融实验。实验结果表明:在两大数据集上,Self-AtDFEFM模型的AUC、LogLoss均优于主流基线模型;Self-AtDFEFM模型的全部参数已调为最佳;各模块形成合力以促使Self-AtDFEFM模型性能达到最优,其中显示高阶特征交互层的作用最大。Self-AtDFEFM模型各模块即插即用,易于构建和部署,且在性能与复杂度之间取得平衡,具备较高实用性。展开更多
在互联网技术日趋成熟的今天,广告的点击率(click-through rate,CTR)预测得到越来越多的关注。在特定的商业环境下,广告CTR预测模型的改进可以带来巨大的经济效益。然而特征的多样性和复杂性使得传统的预测模型难以发现海量特征中的重...在互联网技术日趋成熟的今天,广告的点击率(click-through rate,CTR)预测得到越来越多的关注。在特定的商业环境下,广告CTR预测模型的改进可以带来巨大的经济效益。然而特征的多样性和复杂性使得传统的预测模型难以发现海量特征中的重要特征。针对上述问题,提出了基于压缩激励网络的注意力因子分解机的点击率预测模型(squeeze and excitation network based attentional factorization machines model for click-through rate prediction,SEAFM),SEAFM模型通过压缩和激励网络来动态学习特征的重要性,通过注意力网络来学习特征交互的权重,通过深度神经网络(deep neural network,DNN)模块来隐式建模高阶特征交互。实验结果显示,SEAFM模型比现有相关模型具有更好的性能。展开更多
文摘Online advertisements have a significant influence over the success or failure of your business.Therefore,it is important to somehow measure the impact of your advertisement before uploading it online,and this is can be done by calculating the Click Through Rate(CTR).Unfortunately,this method is not eco-friendly,since you have to gather the clicks from users then compute the CTR.This is where CTR prediction come in handy.Advertisement CTR prediction relies on the users’log regarding click information data.Accurate prediction of CTR is a challenging and critical process for e-advertising platforms these days.CTR prediction uses machine learning techniques to determine how much the online advertisement has been clicked by a potential client:The more clicks,the more successful the ad is.In this study we develop a machine learning based click through rate prediction model.The proposed study defines a model that generates accurate results with low computational power consumption.We used four classification techniques,namely K Nearest Neighbor(KNN),Logistic Regression,Random Forest,and Extreme Gradient Boosting(XGBoost).The study was performed on the Click-Through Rate Prediction Competition Dataset.It is a click-through data that is ordered chronologically and was collected over 10 days.Experimental results reveal that XGBoost produced ROC-AUC of 0.76 with reduced number of features.
文摘点击率(CTR)预测通过预测用户对广告或商品的点击概率,实现数字广告精准推荐。针对现有CTR模型存在原始嵌入向量未精化、特征交互方式偏简单的问题,本文提出自注意力深度域嵌入因子分解机(self-attention deep field-embedded factorization machine,Self-AtDFEFM)模型。首先,通过多头自注意力对原始嵌入向量加权,精化出关键低层特征;其次,构建深度域嵌入因子分解机(FEFM)模块,设计域对对称矩阵以提升不同特征域之间的交互强度,为高阶特征交互优选出低阶特征组合;再次,基于低阶特征组合构建深度神经网络(DNN),完成隐式高阶特征交互;然后,围绕精化后的嵌入向量,联合多头自注意力与残差机制堆叠多个显式高阶特征交互层,通过自注意力捕获同一特征在不同子空间上的互补信息,完成显示高阶特征交互;最后,联合显式与隐式高阶特征交互实现点击率预测。在Criteo和Avazu两大公开数据集上,将Self-AtDFEFM模型与主流基线模型在AUC和LogLoss指标上进行对比实验;为Self-AtDFEFM模型调制显式高阶特征交互层层数、注意力头数量、嵌入层维度及隐式高阶特征交互层层数等参数;对Self-AtDFEFM模型进行消融实验。实验结果表明:在两大数据集上,Self-AtDFEFM模型的AUC、LogLoss均优于主流基线模型;Self-AtDFEFM模型的全部参数已调为最佳;各模块形成合力以促使Self-AtDFEFM模型性能达到最优,其中显示高阶特征交互层的作用最大。Self-AtDFEFM模型各模块即插即用,易于构建和部署,且在性能与复杂度之间取得平衡,具备较高实用性。
文摘在互联网技术日趋成熟的今天,广告的点击率(click-through rate,CTR)预测得到越来越多的关注。在特定的商业环境下,广告CTR预测模型的改进可以带来巨大的经济效益。然而特征的多样性和复杂性使得传统的预测模型难以发现海量特征中的重要特征。针对上述问题,提出了基于压缩激励网络的注意力因子分解机的点击率预测模型(squeeze and excitation network based attentional factorization machines model for click-through rate prediction,SEAFM),SEAFM模型通过压缩和激励网络来动态学习特征的重要性,通过注意力网络来学习特征交互的权重,通过深度神经网络(deep neural network,DNN)模块来隐式建模高阶特征交互。实验结果显示,SEAFM模型比现有相关模型具有更好的性能。
