商品推荐系统

Overview

商品top50推荐系统

问题建模

本项目的数据集给出了15万左右的用户以及12万左右的商品, 以及对应的经过脱敏处理的用户特征和经过预处理的商品特征,旨在为用户推荐50个其可能购买的商品。

推荐系统架构方案

本项目采用传统的召回+排序的方案。在召回模块采用deepwalk, node2vec,item_feature, itemCF四种方法进行多路召回,为每位用户召回1000个商品。在排序阶段采用wide&deep模型,对召回的1000个商品进行排序。将排序所得的分数依据商品点击量进行后处理,来增大对非热门商品的曝光度。最后根据处理后的分数为每位用户推荐50个商品。

最终实现了在验证集上top50召回率0.807, 测试集上top50召回率0.712

文件结构

数据来源于阿里天池平台开源数据,在百度网盘里面,可以自行下载,按照以下路径创建文件夹以及放置数据。

百度网盘链接:https://pan.baidu.com/s/1sspNWKYVxf-QFTrCjdqfoQ 提取码:853t

│  feature_list.csv                               # List the features we used in ranking process
│  project_structure.txt                          # The tree structure of this project
├─ build_graph_model.py                          # Build deepwalk model and node2vec model
├─ final_rank.py                          # Build wide&deep network
├─ final_solution.py                          # Main program
├─ recall_function.py                          # Functions used to recall items
├─ item_feat.pkl                          # Item feature after PCA
├─ top100_recall_feature.pkl                          # Recalled 100 items for each user by using item_feature
├─ top300_recall_deepwalk_result.pkl                          # Recalled 300 items for each user by using deepwalk
├─ top300_recall_node2vec_result.pkl                          # Recalled 300 items for each user by using node2vec
├─ topk_recall.pkl                          # Recalled 1000 items for each user by combining all ways
├─ train_eval_rank.pkl                          # Cross validation set after ranking
├─ wide_and_deep.h5                          # Wide&Deep model using full training set
├─ wide_and_deep_no_cv.h5                          # Wide&Deep model using training set except cross validation set
├─ data                                           # Origin dataset
│  ├─ underexpose_test
│  └─ underexpose_train
├─ readme.md
├─ deepwalk_offline.bin                                      # deepwalk model
└─ node2vec_offline.bin                                      # node2vec model

Python库环境依赖

tensorflow==2.3.1
scikit-learn==0.23.2
joblib==0.17.0
networkx==2.1
gensim==3.8.3
pandas==0.25.1
numpy==1.18.5
tqdm==4.26.0

声明

本项目所有代码仅供各位同学学习参考使用。如有任何对代码的问题请邮箱联系:[email protected]

If you have any issue please feel free to contact me at [email protected]

NExT-QA: Next Phase of Question-Answering to Explaining Temporal Actions (CVPR2021)

NExT-QA We reproduce some SOTA VideoQA methods to provide benchmark results for our NExT-QA dataset accepted to CVPR2021 (with 1 'Strong Accept' and 2

Junbin Xiao 50 Nov 24, 2022
Sinkformers: Transformers with Doubly Stochastic Attention

Code for the paper : "Sinkformers: Transformers with Doubly Stochastic Attention" Paper You will find our paper here. Compat This package has been dev

Michael E. Sander 31 Dec 29, 2022
Vehicle direction identification consists of three module detection , tracking and direction recognization.

Vehicle-direction-identification Vehicle direction identification consists of three module detection , tracking and direction recognization. Algorithm

5 Nov 15, 2022
Automated Melanoma Recognition in Dermoscopy Images via Very Deep Residual Networks

Introduction This repository contains the modified caffe library and network architectures for our paper "Automated Melanoma Recognition in Dermoscopy

Lequan Yu 47 Nov 24, 2022
Code of TVT: Transferable Vision Transformer for Unsupervised Domain Adaptation

TVT Code of TVT: Transferable Vision Transformer for Unsupervised Domain Adaptation Datasets: Digit: MNIST, SVHN, USPS Object: Office, Office-Home, Vi

37 Dec 15, 2022
Differentiable Neural Computers, Sparse Access Memory and Sparse Differentiable Neural Computers, for Pytorch

Differentiable Neural Computers and family, for Pytorch Includes: Differentiable Neural Computers (DNC) Sparse Access Memory (SAM) Sparse Differentiab

ixaxaar 302 Dec 14, 2022
Official code for article "Expression is enough: Improving traffic signal control with advanced traffic state representation"

1 Introduction Official code for article "Expression is enough: Improving traffic signal control with advanced traffic state representation". The code s

Liang Zhang 10 Dec 10, 2022
MonoScene: Monocular 3D Semantic Scene Completion

MonoScene: Monocular 3D Semantic Scene Completion MonoScene: Monocular 3D Semantic Scene Completion] [arXiv + supp] | [Project page] Anh-Quan Cao, Rao

298 Jan 08, 2023
PointCNN: Convolution On X-Transformed Points (NeurIPS 2018)

PointCNN: Convolution On X-Transformed Points Created by Yangyan Li, Rui Bu, Mingchao Sun, Wei Wu, Xinhan Di, and Baoquan Chen. Introduction PointCNN

Yangyan Li 1.3k Dec 21, 2022
Code for the ICML 2021 paper: "ViLT: Vision-and-Language Transformer Without Convolution or Region Supervision"

ViLT Code for the paper: "ViLT: Vision-and-Language Transformer Without Convolution or Region Supervision" Install pip install -r requirements.txt pip

Wonjae Kim 922 Jan 01, 2023
Generalized Data Weighting via Class-level Gradient Manipulation

Generalized Data Weighting via Class-level Gradient Manipulation This repository is the official implementation of Generalized Data Weighting via Clas

18 Nov 12, 2022
Aydin is a user-friendly, feature-rich, and fast image denoising tool

Aydin is a user-friendly, feature-rich, and fast image denoising tool that provides a number of self-supervised, auto-tuned, and unsupervised image denoising algorithms.

Royer Lab 99 Dec 14, 2022
HistoKT: Cross Knowledge Transfer in Computational Pathology

HistoKT: Cross Knowledge Transfer in Computational Pathology Exciting News! HistoKT has been accepted to ICASSP 2022. HistoKT: Cross Knowledge Transfe

Mahdi S. Hosseini 5 Jan 05, 2023
CCPD: a diverse and well-annotated dataset for license plate detection and recognition

CCPD (Chinese City Parking Dataset, ECCV) UPdate on 10/03/2019. CCPD Dataset is now updated. We are confident that images in subsets of CCPD is much m

detectRecog 1.8k Dec 30, 2022
Curating a dataset for bioimage transfer learning

CytoImageNet A large-scale pretraining dataset for bioimage transfer learning. Motivation In past few decades, the increase in speed of data collectio

Stanley Z. Hua 9 Jun 20, 2022
Spatially-Adaptive Pixelwise Networks for Fast Image Translation, CVPR 2021

Image Translation with ASAPNets Spatially-Adaptive Pixelwise Networks for Fast Image Translation, CVPR 2021 Webpage | Paper | Video Installation insta

Tamar Rott Shaham 100 Dec 28, 2022
Python scripts form performing stereo depth estimation using the high res stereo model in PyTorch .

PyTorch-High-Res-Stereo-Depth-Estimation Python scripts form performing stereo depth estimation using the high res stereo model in PyTorch. Stereo dep

Ibai Gorordo 26 Nov 24, 2022
Joint parameterization and fitting of stroke clusters

StrokeStrip: Joint Parameterization and Fitting of Stroke Clusters Dave Pagurek van Mossel1, Chenxi Liu1, Nicholas Vining1,2, Mikhail Bessmeltsev3, Al

Dave Pagurek 44 Dec 01, 2022
A collection of Google research projects related to Federated Learning and Federated Analytics.

Federated Research Federated Research is a collection of research projects related to Federated Learning and Federated Analytics. Federated learning i

Google Research 483 Jan 05, 2023
AFL binary instrumentation

E9AFL --- Binary AFL E9AFL inserts American Fuzzy Lop (AFL) instrumentation into x86_64 Linux binaries. This allows binaries to be fuzzed without the

242 Dec 12, 2022