Gradient Boosting and Language Model Ensemble for Tweet Recommendation.
Pere GilabertSanti SeguíPublished in: RecSys Challenge (2020)
Keyphrases
- language model
- gradient boosting
- base learners
- ensemble methods
- loss function
- ensemble learning
- n gram
- information retrieval
- recommender systems
- collaborative filtering
- probabilistic model
- query expansion
- random forests
- retrieval model
- base classifiers
- test collection
- decision trees
- mixture model
- query terms
- training data
- bag of words
- learning algorithm
- cost sensitive
- named entities
- training set
- feature selection
- graphical models
- regression problems
- pairwise