be stochastic
be + stochastic 作表语,表示主语具有随机性。
The fluctuations are stochastic, so they cannot be predicted exactly.
这些波动是随机的,因此无法精确预测。
随机的
先理解核心含义,再看它在真实句子里的用法。
随机的
stochastic
The fluctuations are stochastic, so they cannot be predicted exactly.
这些波动是随机的,因此无法精确预测。
随机的,随机决定的
Random, randomly determined.
The weather forecast uses a stochastic model to account for unpredictable changes.
天气预报使用随机模型来解释不可预测的变化。
Scientists ran thousands of stochastic simulations to estimate the range of possible outcomes.
科学家们运行了数千次随机模拟,以估计可能结果的范围。
In a stochastic process, the next state depends on both the current state and chance.
在随机过程中,下一个状态既取决于当前状态,也取决于偶然性。
be + stochastic 作表语,表示主语具有随机性。
The fluctuations are stochastic, so they cannot be predicted exactly.
这些波动是随机的,因此无法精确预测。
stochastic 常作前置定语,修饰 process、model、variable 等名词。
A stochastic process is used to model random events.
随机过程用于对随机事件建模。
Not this
The stochastic of the system makes the prediction difficult.
Use this
The stochastic nature of the system makes the prediction difficult.
stochastic 是形容词,表示“随机的”,不能直接用作名词。汉语的“随机性”应表达为 the stochastic nature(或 randomness),所以需要加上 nature 等名词。
Not this
I made a stochastic choice of restaurant.
Use this
I made a random choice of restaurant.
stochastic 是数学/统计学中的专业术语,通常修饰 process、model、variable 等;日常生活里“随便选”应用 random。两者虽都涉及“随机”,但语域和搭配不同。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
随机过程
The evolution of stock prices is often modeled as a stochastic process.
股票价格的演变常被建模为随机过程。
随机模型
The researchers used a stochastic model to account for random fluctuations.
研究人员使用随机模型来解释随机波动。
随机梯度下降
Stochastic gradient descent is widely used to train neural networks.
随机梯度下降被广泛用于训练神经网络。
随机变量
A stochastic variable takes different values with certain probabilities.
随机变量以一定概率取不同的值。
随机模拟
Monte Carlo methods are a form of stochastic simulation.
蒙特卡洛方法是一种随机模拟。
随机共振
Stochastic resonance can enhance signal detection in nonlinear systems.
随机共振可以增强非线性系统中的信号检测。
Use stochastic naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想:stochastic 开头像 stock(股票),股市行情随机波动,所以 stochastic = 随机的。
语域:formal 常见场景:概率统计、机器学习、学术论文 该词通常属于正式、学术性的用语,多用于数学、统计学及工程技术等专业语境,日常口语中很少使用。
常用于数学、统计学或技术语境,多作定语。
Dictionary facts from ECDICT, WIKTIONARY.