sparsity

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
Sparsity 指某物在数量或分布上的稀疏、稀少状态,常用于描述数据、人口或资源的贫乏。

用法要点

句型搭配

Sparsity 常作为主语或宾语,用于描述抽象或具体事物的稀少性,如数据稀疏或人口稀疏。

• The sparsity of data makes analysis difficult.
• We observed a sparsity of resources in the region.

介词用法

常与介词 of 连用,表示稀疏的对象,如 sparsity of something;也可用 in 表示在某个方面的稀疏。

• sparsity of information
• sparsity in population density

语域说明

Sparsity 在学术、技术和正式语境中更常见,如计算机科学、统计学或地理学,日常口语中较少使用。

• sparsity in machine learning models
• sparsity of vegetation in deserts

基础例句

The sparsity of trees in this park makes it feel more open and airy.

这个公园里树木稀疏,让人感觉更开阔通风。

Due to the sparsity of public transport, I have to drive to work every day.

由于公共交通稀少,我每天必须开车上班。

We noticed a sparsity of customers in the store during the weekdays.

我们注意到工作日店里顾客稀少。

高级例句

In machine learning, sparsity in data can improve model efficiency by reducing computational costs.

在机器学习中,数据的稀疏性可以通过降低计算成本来提高模型效率。

The sparsity of historical records complicates the study of ancient civilizations in this region.

历史记录的稀少使得研究该地区的古代文明变得复杂。

Economic reports highlight the sparsity of investment in rural infrastructure development.

经济报告强调了农村基础设施发展中投资的贫乏。

高频搭配

verb

increase sparsityreduce sparsitymeasure sparsityexploit sparsityhandle sparsity

adjective

high sparsitylow sparsitydata sparsitypopulation sparsityextreme sparsity

noun

sparsity patternsparsity levelsparsity constraintsparsity assumptionsparsity structure

adverb

highly sparserelatively sparseinherently sparsesignificantly sparse

preposition

sparsity of datasparsity in distributionsparsity due to scarcitysparsity across regions

phrase

sparsity of informationsparsity of resourcessparsity in the datasetsparsity and density

常见错误

❌ 错误:The sparsity of the book is hard to read.
✓ 正确:The sparsity of details in the book makes it hard to understand.

错误用法中,sparsity 直接修饰 book 不自然,应改为描述书中的细节稀疏,以更准确地表达含义。

❌ 错误:There is a sparsity in water.
✓ 正确:There is a sparsity of water resources in the area.

错误用法中,介词 in 使用不当,sparsity 通常与 of 连用表示稀疏的对象,如水资源,以符合英语习惯。

近义词辨析

scarcity

Scarcity 强调数量不足或短缺,常用于资源或商品;sparsity 更侧重于分布上的稀疏或稀少,常用于数据或空间分布。

Scarcity of food led to high prices, while sparsity of data points affected the analysis.

rarity

Rarity 指某物罕见或不常见,带有珍贵或独特的意味;sparsity 更中性,描述数量少或分布散,不强调价值。

The rarity of diamonds makes them expensive, but the sparsity of trees in the desert is due to climate.