2025年全国英语等级考试（PETS）四级试卷：大数据在智能推荐中的应用
考试时间：______分钟总分：______分姓名：______
一、单项选择题
要求：从每题的四个选项中选出可以填入空白处的最佳答案。
1.Therapiddevelopmentoftechnologyhasbroughtaboutgreatchangesinourlives,especiallyinthefieldof_______.
A.communication
B.education
C.medicine
D.smartrecommendation
2.Inordertoprovideuserswithmorepersonalizedrecommendations,_______algorithmsarewidelyusedinsmartrecommendationsystems.
A.collaborativefiltering
B.content-basedfiltering
C.hybridrecommendation
D.alloftheabove
3.The_______ofarecommendationsystemistoenhanceusersatisfactionandimprovethequalityoftherecommendeditems.
A.accuracy
B.diversity
C.coverage
D.alloftheabove
4._______isacommontechniqueusedtohandlethesparsityproblemincollaborativefiltering.
A.matrixfactorization
B.clustering
C.deeplearning
D.alloftheabove
5.The_______ofarecommendationsystemreferstothesystemsabilitytoadapttochangesinuserpreferencesanditemcharacteristics.
A.robustness
B.scalability
C.adaptability
D.alloftheabove
6._______isatechniquethatutilizesthesemanticinformationofitemstoimprovethequalityofrecommendations.
A.item-basedfiltering
B.content-basedfiltering
C.deeplearning
D.hybridrecommendation
7.Theprocessof_______involvestrainingamodeltopredicttheuserspreferencesbasedonthehistoricalinteractiondata.
A.featureengineering
B.modeltraining
C.evaluation
D.deployment
8._______isatechniquethatcombinesmultiplerecommendationmethodstoimprovetheoverallperformanceofthesystem.
A.hybridrecommendation
B.content-basedfiltering
C.collaborativefiltering
D.alloftheabove
9.The_______ofarecommendationsystemreferstothenumberofrecommendeditemsthatthesystemcangenerateforauser.
A.coverage
B.diversity
C.accuracy
D.alloftheabove
10._______isamethodthatutilizestheuserssocialnetworktoproviderecommendations.
A.coll