WO2016192465A1 - 基于商品图像特征的个性化搜索装置及方法 - Google Patents
基于商品图像特征的个性化搜索装置及方法 Download PDFInfo
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- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0623—Electronic shopping [e-shopping] by investigating goods or services
- G06Q30/0625—Electronic shopping [e-shopping] by investigating goods or services by formulating product or service queries, e.g. using keywords or predefined options
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- G—PHYSICS
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/30—Scenes; Scene-specific elements in albums, collections or shared content, e.g. social network photos or video
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- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
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- G06F18/211—Selection of the most significant subset of features
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Definitions
- the invention relates to a personalized search device and method based on commodity image features in the field of electronic commerce.
- the existing personalized search generally first extracts the features of users, commodities, scene semantics, statistics, texts, etc., and then obtains the final result according to various search and sorting algorithms.
- the existing search there is rarely a personalized search based on the behavior of the user browsing the product image.
- the invention provides a personalized search device and method based on product image features, which uses a neural network to extract a deep abstract semantic feature vector of a product image according to a product image in the e-commerce field, and classifies the browsing behavior of the user according to the category.
- the interest weight of the user under each category is calculated.
- the user uses the interest weight according to the category to obtain the ranking result of the user under the category, which is used for personalized search. This can increase the user's experience value in multiple dimensions.
- the personalized image search device based search device of the present invention comprises:
- a feature extraction module that uses a neural network model to extract an abstract semantic feature vector of an image by category
- the HOG feature is used as an input signal of the neural network, and the neural network output signal is used as a feature vector of the image;
- a category image calculation module that receives an abstract semantic feature vector of an image pushed from the feature extraction module, calculates an average and a variance of the abstract semantic feature vector for each dimension, and returns according to each dimension One-time treatment;
- a user browsing behavior weight calculation module which sums all corresponding images browsed by the user by the category to extract the corresponding normalized semantic feature vector, and obtains the interest weight vector of the user under each category;
- a sorting module which performs inner product on the feature vector corresponding to the image not viewed by the user under the category according to the interest weight vector of each user pushed by the user browsing behavior weight calculation module The score value corresponding to each image that the user does not view, and then sorted according to the obtained score value, and the specified image with a high score value is selected and stored in the library;
- the search invocation module performs a personalized search based on the ranking result of the sorting module.
- the personalized image search method based on the product image of the present invention includes:
- a category image calculation step respectively calculating mean and variance in the dimension for the abstract semantic feature vector of each dimension, and performing normalization processing according to each dimension;
- the user browses the behavior weight calculation step, which sums the corresponding normalized semantic feature vectors by the category extraction for all the corresponding images browsed by the user, and obtains the interest weight vector of the user under each category;
- the search invocation step performs a personalized search based on the sorted value result of the sorting step.
- the invention is directed to a product image in the field of electronic commerce, combined with the deep semantic feature of the image, and performs personalized search according to the browsing behavior of the user, thereby being able to increase the user in multiple dimensions.
- Experience value is provided.
- FIG. 1 is a block diagram showing a personalized search device based on a product image feature according to the present invention.
- FIG. 2 is a flow chart showing a personalized search method based on product image features according to the present invention.
- the invention mainly uses the neural network to extract the abstract semantic feature vector of the image, and calculates the mean and variance of the feature vector of each image under each category in each dimension, according to the image browsed by each user, according to the extracted behavior of each browsing behavior.
- the feature vector is normalized and then summed to obtain the user's interest weight.
- the interest weight is used to inner product of the feature vector of each image under the category to obtain the score value of the image, and then the result after sorting is used. For personalized search.
- FIG. 1 is a block diagram showing a personalized search device 1 based on a product image feature according to the present invention.
- the personalized image search device 1 mainly includes a feature extraction module 2, a category image calculation module 3, a user browsing behavior weight calculation module 4, a ranking module 5, and a search invocation module 6.
- the feature extraction module 2 extracts an abstract semantic feature vector of the image by category using the neural network model, and pushes the abstract semantic feature vector to the category image calculation module 3.
- the category image calculation module 3 receives the abstract semantic feature vector of the image pushed from the feature extraction module 2, and calculates the mean ⁇ i and the variance ⁇ i in the dimension for the abstract semantic feature vector of each dimension, respectively, and The abstract semantic feature vector of the image, normalized according to each dimension
- the browsing behavior is de-duplicated (multiple browsing is once again) to avoid the influence of the user's wrong click, and in addition, all corresponding images browsed by the user are extracted according to the category.
- the normalized feature vectors are summed to obtain the interest weight vector of the user under each category, and the obtained interest weight vector of each user under each category is pushed to the sorting module 5.
- the sorting module 5 is based on the interest weight vector (w 1 , w 2 , . . . , w n ) of each user pushed from the user browsing behavior weight calculation module 4 under the category, and the image not viewed by the user under the category.
- Corresponding feature vector to do inner product The score values corresponding to each image that the user does not view are obtained, and then sorted according to the obtained score values, and the Top-N is selected and stored in the library, and all the categories are performed according to the above steps.
- the personalized search is performed according to the browsing behavior of the user, so that the user's experience value in multiple dimensions can be increased.
- FIG. 2 is a flow chart showing a personalized search method based on product image features according to the present invention.
- the sorting step S4 according to the interest weight vector of each user under a certain category, the inner product of the feature vector corresponding to the image not viewed by the user under the category is internally generated, and corresponding to each image that the user does not view is obtained.
- the score value is then sorted according to the obtained score value. After Top-N is selected, all the categories are processed according to the above steps.
- the personalized search is performed according to the browsing behavior of the user, thereby increasing the user's experience value in multiple dimensions.
- the different calculation methods of the interest weight vector will affect the final result.
- the user's browsing cycle is different, and the user's desire to purchase the product is different, which will affect the final result.
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Abstract
Description
Claims (10)
- 一种基于商品图像特征的个性化搜索装置,其包括:特征提取模块,其利用神经网络模型,按品类提取图像的抽象语义特征向量,先对图像提取HOG特征,将图像灰度化,计算图像中每个像素的梯度,将图像划分成8x8个小块,计算每个块的梯度直方图形成该图像块的Descriptor,将2x2的小块串联起来得到16个大块,每个大块的Descriptor是小块Descriptor的串联,整个图像的HOG特征是16个大块的Descriptor串联,HOG特征作为神经网络的输入信号,神经网络输出信号作为图像的特征向量;品类图像计算模块,其接收从所述特征提取模块推送来的图像的抽象语义特征向量,对于每一维度的抽象语义特征向量分别计算在该维度下的均值与方差,并且按照每一维度做归一化处理;用户浏览行为权重计算模块,其对用户浏览的所有对应的图像按品类提取相应归一化的所述抽象语义特征向量进行求和,得到该用户在各个品类下的兴趣权重向量;排序模块,其根据从所述用户浏览行为权重计算模块推送来的每个用户在某一品类下的所述兴趣权重向量,对该品类下用户没有观看的图像对应的特征向量做内积,得到用户没有观看的每一张图像对应的得分值,然后根据所得到的得分值进行排序,选取得分值高的规定张图像之后入库;搜索调用模块,其根据所述排序模块的排序值结果,进行个性化的搜索。
- 根据权利要求1所述基于商品图像特征的个性化搜索装置,其特征在于,所述搜索调用模块对应现有的搜索结果,查看每一个商品对应图像的得分值,最后在搜索结果中进行排序并输出。
- 根据权利要求1所述基于商品图像特征的个性化搜索装置,其特征在于,所述搜索调用模块在对用户的搜索词进行语义分析后,将其对应到某一品类,取这一个品类得分值高的规定张图像对应的商品作为个性化的搜索结果。
- 根据权利要求1~3的任一项所述基于商品图像特征的个性化搜索装置,其特征在于,在所述用户浏览行为权重计算模块中,对浏览行为进行去重处理。
- 一种基于商品图像特征的个性化搜索方法,其包括:特征提取步骤,利用神经网络模型,按品类提取图像的抽象语义特征向量;品类图像计算步骤,对于每一维度的所述抽象语义特征向量分别计算在该维度下的均值与方差,并且按照每一维度做归一化处理;用户浏览行为权重计算步骤,其对用户浏览的所有对应的图像按品类提取相应归一化的所述抽象语义特征向量进行求和,得到该用户在各个品类下的兴趣权重向量;排序步骤,根据每个用户在某一品类下的所述兴趣权重向量,对该品类下用户没有观看的图像对应的特征向量做内积,得到用户没有观看的每一张图像对应的得分值,然后根据所得到的得分值进行排序,选取得分值高的规定张图像之后入库;搜索调用步骤,根据所述排序步骤的排序值结果,进行个性化的搜索。
- 根据权利要求6所述基于商品图像特征的个性化搜索装置,其特征在于,在所述搜索调用步骤中,对应现有的搜索结果,查看每一个商品对应图像的得分值,最后在搜索结果中进行排序并输出。
- 根据权利要求6所述基于商品图像特征的个性化搜索装置,其特 征在于,在所述搜索调用步骤中,在对用户的搜索词进行语义分析后,将其对应到某一品类,取这一个品类得分值高的规定张图像对应的商品作为个性化的搜索结果。
- 根据权利要求6~8的任一项所述基于商品图像特征的个性化搜索装置,其特征在于,在所述用户浏览行为权重计算步骤中,对浏览行为进行去重处理。
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| US15/579,392 US20180357258A1 (en) | 2015-06-05 | 2016-04-12 | Personalized search device and method based on product image features |
| RU2017142112A RU2697739C2 (ru) | 2015-06-05 | 2016-04-12 | Устройство и способ персонализированного поиска на основе признаков изображения продукта |
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Also Published As
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|---|---|
| JP6494804B2 (ja) | 2019-04-03 |
| CN104881798A (zh) | 2015-09-02 |
| RU2017142112A3 (zh) | 2019-06-04 |
| US20180357258A1 (en) | 2018-12-13 |
| RU2017142112A (ru) | 2019-06-04 |
| HK1212074A1 (zh) | 2016-06-03 |
| JP2018522339A (ja) | 2018-08-09 |
| RU2697739C2 (ru) | 2019-08-19 |
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