散文網(wǎng) » 生活 »日常 » 進(jìn)程代數(shù)process algebra CRL ACP

進(jìn)程代數(shù)process algebra CRL ACP

2022-06-21 12:03 作者:Seoul十大杰出校友 0人讀過(guò) | 我要投稿

進(jìn)程代數(shù)是描述并發(fā)和通信系統(tǒng)的數(shù)學(xué)工具。

基本進(jìn)程代數(shù)的代表是CSS、CSP、ACP，基本進(jìn)程代數(shù)忽略了模型中的時(shí)序關(guān)系和實(shí)體行為不確定性，限制了模型能力。

隨機(jī)進(jìn)程代數(shù)的代表為PEPA、EMPA、TIPP，隨機(jī)進(jìn)程代數(shù)在基礎(chǔ)進(jìn)程代數(shù)基礎(chǔ)上加入了時(shí)間和概率等性能特征，提高了模型能力。

CCS

為了描述狀態(tài)之間的關(guān)系，CCS定義了5中基本的連接符，分別是前綴、加和、復(fù)合、限制、重命名。

通過(guò)代理、動(dòng)作和連接符，CCS建立模型來(lái)描述一個(gè)系統(tǒng)的行為。

PEPA

與CCS中的動(dòng)作(action)不同的是,活動(dòng)由活動(dòng)類(lèi)型(action type)和活動(dòng)速率(activity rate)二元組表示。PEPA通過(guò)發(fā)生速率這一概念同時(shí)引入了時(shí)間和概率,是對(duì)CCS的關(guān)鍵擴(kuò)充。

聽(tīng)力

聽(tīng)力部分不可以回顧

利用計(jì)時(shí)器熟悉在較短時(shí)間內(nèi)講話(huà)的感覺(jué)

開(kāi)頭：

In the lecture ，the professor casts doubts on the reading passage's idea that ...

The professor asserts that...

第二段：

Firstly, contray to the belief in the passage that...

the professor asserts that...

第三段：

Secondly,the author of the passage points out that...,while the lecture notes that...

第四段：

Lastly,?opposing the author's belief that..., the professor contends that...

學(xué)業(yè)繁重

As a college student, I am overwhelmed with lots of schoolwork.I have to prepare for exams,do presentations,do group projects and stuff like that.

節(jié)約金錢(qián)

As a college student,saving up some money should be a top priority to me. I am on a tight budget since I have to spend money on different things,such as paying expensive tuitions,convering my living expenses,you know,things like room and board,utility bills and so on.

開(kāi)闊視野

I can make friends with people who are from distinctive cultural backgrounds,thus I can get to know their culture,customs and ways of living. By interacting with them,I can broaden my horizons and have new perspectives on things.Eventually I can be a well-rounded person.

交流和課堂展示好處

When exchanging ideas with others, I can find different solutions to the same problem. I can be exposed to new views and perspectives through discussion.

金錢(qián)管理能力

Kids should learn to budget their money(做好預(yù)算).They should know the importance of making ends meet（收支相抵）。After all，when they are in college，they have to cover living expense，buy textbooks and pay tuitions.Mnoey management skills can help them avoid debt and be more successful in the fulture.

Thanks to deep learning,today we can train better machine learning models when given access to massive data.However,the standard ,centralized training is impossible in many interesting use-cases-due to the associated data transfer and maintenance costs,privacy concerns or sensitivity of the proprietary data.

Broadly, federated learning (FL) allows multiple data owners?to train shared models collaboratively under the orchestration of a central server without having to share any data.

Typically, FL proceeds in multiple rounds of communication between the server and the clients: the clients compute model updates on their local data and send them to the server which aggregates and applies these updates to the shared model

federated learning aims at training a machine learning algorithm,for instance deep neural networks,on multiple local datasets contained in local nodes without explicitly exchanging data samples.The general principle consists in training local models on local data samples and exchanging parameters between these local nodes at some frequency to generate a global model shared by all nodes.

Nowadays, food has become easier to prepare. Has this change improved the way people live? Use specific reasons and examples to support your answer.

范文1

With the advantages of technology, the human has shifted to a lifestyle in which individual requirement for delicious food has emerged not just to fulfill the hunger. They want to enjoy a diverse range of foods with a varying taste and for that have invented many new and complex recipes. They want to do it easily and swiftly with the help of modern tools and technology. Has this really improved our lifestyle or has done more harms? Let us examine this in the following essay.

People want to enjoy a diverse type of food - prepare them at home or eat at expensive restaurants. People want to try new cuisines both at home and at restaurants and they want to be served promptly. This is where the modern equipment takes part in, and food preparation nowadays is easier and faster and this has definitely enhanced our lifestyle as it allows us to enjoy food, not just satisfy our tummy.

Moreover, modern tools like the rice cooker, microwave oven, slicer, mixer, electric heater and so on make the cooking process quick and convenient. This saves a great deal of time unlike the past when someone had to be busy all day to prepare meals for the family. People now have more time for recreation, hobbies and for the family. For students, busy corporates, businessmen and researchers, this improvement remarkably enhances their lifestyle.

On the downside, the advancements in food preparation methods have led to the growth of fast food industries and their restaurants pop-up everywhere, like mushrooms after the rain. This might seem convenient for those who do not have time to prepare food at home, but the health hazards are even greater. The obesity rate is skyrocketing in western countries and more people, these days, are suffering from health-related issues.

In conclusion, the latest technology has undeniably improved the quality of an individual’s living standard but not without a cost. To make the best of this development we have to avoid junk food but prepare more nutritious food at home.

范文2

Food is one of the fundamental needs of human lives, and from the ancient period until this ultra-modern tech-time people have invented different ways to prepare and customise foods. The improvement has definitely enhanced our lifestyle as we have more time to do more productive things.

To begin with, the customs and ways people prepare foods and present to others vary depending on the race, culture and country. But the most fundamental need of preparing foods is to fulfil the very basic human need- hunger. Preparing foods was very cumbersome in the past but with the advancement of human knowledge and technology, men have created many devices and made many new ways of easily making foods. The number of restaurants and fast-food shops are ever-increasing and that have omitted the need to prepare the food at all. The advanced technology like a rice cooker,? meal cooker and easy availability of ingredients nowadays help people to prepare food in no time and that has improved the way of people’s lifestyle. People now spend less time preparing foods and can utilise this time in other tasks like professional tasks, reading, entertainment and spending time with family and friends. Thus people get more productive and social because of the increased time they have.

Quick food has become very popular which omits the needs of cooking and professionals, students and business person are having those foods during their lunchtime. This is a significant improvement in saving time and using it more productively. Though fast foods have some health issues, the ever-increasing popularity of it shows needs to have more time in our busy life and saving this time from the allotted time from cooking. The cooking machines help the housewives to prepare the foods easily and they do not have to spend time in a hot kitchen to prepare food. This is a leap towards a modern life where foods can be prepared virtually anywhere and in a few minutes.

In summary, the improved way of cooking helps people nowadays to save time and cook in a more convenient place. This helps them to spend time on more important things and lead a life without much hassle.?