The goal of the second analysis task is to train linear regression models to predict users' ratings towards items. This involves a standard Data Science workflow: exploring data, building models, making predictions, and evaluating results. In this task, we will explore the impacts of feature selections and different sizes of training/testing data on the model performance. We will use another cleaned Epinions sub-dataset that is different from the one in Portfolio 1. Import Cleaned Epinions Dataset The csv file named 'Epinions_cleaned_data_portfolio_2.csv'is provided. Please import the csv file (i.e., 'Epinions_cleaned_data_portfolio_2') and print out its total length. import pandas as pd import numpy as np import matplot lib.pyplot as plt smatplot lib inline ]: #n your code and solufion df= pd,read_csv('Epinions_cleaned_data_portfolio_2,csv') print (df , shape) (2899,8) Explore the Dataset - Use the methods, i.e., head() and inf o(), to have a rough picture about the data, e.g., how many columns, and the data types of each column. - As our goal is to predict ratings given other columns, please get the correlations between helpfulness/gendericategory/review and rating by using the corr() method. - To get the correlations between different features, you may need to first convert the categorical features (i.e., gender, category and review) into numerial values. For doing this, you may need to import DrdinalEncoder from sklearn.preprocessing (refer to the useful exmaples here) - Please provide necessary explanations/analysis on the correlations, and figure out which are the most and least corrleated features regarding rating (positive or negative). Try to discuss how the correlation vill affect the final prediction results, if we use these features to train a regression model for rating prediction. In what follows, we vill conduct experiments to verify your hypothesis.

The statement "Hyper-v was first introduced with windows server 2012" is false. Hyper-V was actually first introduced with Windows Server 2008. However, it was significantly improved and updated with the release of Windows Server 2012.


Hyper-V was not first introduced with Windows Server 2012. Instead, it was first introduced as a feature in Windows Server 2008. Hyper-V is a virtualization technology that allows users to create and manage virtual machines on a physical server, improving server utilization and providing better isolation between workloads. Windows Server 2012 did, however, bring significant improvements and new features to Hyper-V, such as enhanced live migrations and improved virtual networking.

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Information technology (IT) plays a crucial role in the new product development process, providing significant advantages and support throughout various stages.

1. Data Analysis and Market Research: IT enables extensive data collection and analysis, empowering organizations to gain valuable insights into customer preferences, market trends, and competitor offerings.

With the help of IT tools and software, companies can conduct comprehensive market research, perform customer surveys, analyze social media data, and track online consumer behavior.

2. Collaboration and Communication: IT facilitates seamless collaboration and communication among cross-functional teams involved in the new product development process.

Through project management software, cloud-based document-sharing platforms, and virtual communication tools, teams can collaborate effectively regardless of their geographical locations.

3. Prototyping and Simulation: IT enables the creation of virtual prototypes and simulations, saving time and costs associated with physical prototyping.

Computer-aided design (CAD) software allows product designers to create detailed and realistic digital prototypes, facilitating quick iterations and improvements.

In conclusion, IT plays a critical role in the new product development process by enabling data-driven decision-making, fostering collaboration among teams, and facilitating virtual prototyping and simulation.

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Answer:

A. 1 AWG

Explanation:

The larger the AGW number or wire gauge, the smaller the size of the wire

The largest conductor in the list is 1 American Wire Gauge (AWG)

Conductors are substances that allows electricity to flow through it.

In a conductor, electrical charge carriers, usually electrons or ions, move easily from atom to atom when voltage is applied.

In a simpler term conductors are substance that can conduct electricity.

American Wire Gauge (AWG) is the standard way to denote wire sizes.

Therefore, 1 American Wire Gauge (AWG) conducts more electricity in the list.

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Explanation:

The infrastructure of a mainframe in which several consumers receive services from a central controller is known as client-server architectural design. Authorized users provide a feature that enables an user to demand software service and view the results returned by the server.

Answer:

Several clients are connected to a centralized server.

Explanation:

plato correct!

In python 3:

def main():

   largest = 0

   while True:

       number = int(input("Enter a number: "))

       if number == 0:

           print(largest)

           return

       elif number > largest:

           largest = number

if __name__ == "__main__":

   main()

I hope this helps!

The substance I think is in the cylinder that you cannot see and prevents the plunger from going all the way in even when you push the plunger hard is Air.

When a person push on the plunger, the person can feel the air pushing it back. When a person has stop pushing, the air inside the syringe will tend to return to its normal size.

Note that there are a lot of ways to compress air. A person can do so by  squeezing  a specified volume of air into a smaller space.

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Hadoop's file redundancy is less problematic than it could be because it is designed to provide fault tolerance and maintain data reliability. By replicating files across multiple nodes, Hadoop ensures that even if a node fails, the data remains accessible. This built-in redundancy system effectively addresses potential data loss concerns, making it a beneficial feature rather than a problematic one.

Hadoop's file redundancy is less problematic than it could be due to the fact that Hadoop replicates data across multiple nodes in a cluster. This ensures that if one node fails or goes down, the data can still be accessed from another node. Additionally, Hadoop uses a NameNode to manage and track the location of all the data blocks. This allows for efficient and reliable access to data, even in the event of hardware failures. Overall, Hadoop's file redundancy approach helps to minimize data loss and downtime, making it a more reliable and robust solution for big data processing.

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La respuesta correcta para esta pregunta abierta es la siguiente.

A pesar de que no se anexan opciones o incisos para responder, podemos comentar lo siguiente.

Se dice que las TIC´S son las integración de las TI y las TC porque ambas actividades se han integrado o fusionado en una solo concepto al momento de juntar las herramientas tecnológicas para almacenar, procesar y mandar información a través de los recursos tecnológicos utilizando los canales o recursos de los medios masivas de comunicación como lo son las redes satelitales o las comunicaciones vía microondas.

Al fusionarse las TI (Tecnologías de la Información) con las TC (Tecnologías de Comunicación), se maximiza la capacidad de enviar una mayor cantidad de información al momento a diferentes lugares del planeta.

Answer: B

Explanation: Open Source software is "open" by nature, meaning collaborative. Developers share code, knowledge, and related insight in order to for others to use it and innovate together over time. It is differentiated from commercial software, which is not "open" or generally free to use.

Answer:

The angle of refraction measured from the normal is approximately 28.13°

Explanation:

The angle of refraction is the angle made by the refracted ray and the normal line drawn at the point where the ray passes through the interface of the two mediums

According to Snell's law, we have;

\(_1 n_2 = \dfrac{n_1}{n_2} = \dfrac{sin \, \theta _2}{sin \, \theta _1}\)

n₁·sin (θ₁) = n₂·sin(θ₂)

Where;

₁n₂ = The refractive index of air to glass = 1.5

n₁ = The refractive index of air = 1

n₂ = The refractive index of glass ≈ 1.5

θ₁ = The angle of incidence = 45°

θ₂ = The angle of refraction measured from the normal

Therefore, we have;

1/1.5 = sin(θ₂)/sin(45°)

sin(θ₂) = sin(45°)/1.5 = (√2)/2/(3/2) = (√2)/3

∴ θ₂ = arcsin((√2)/3) ≈ 28.13°

The angle of refraction measured from the normal = θ₂ ≈ 28.13°.

ISMN stands for International Standard Music Number. It is a unique identifier for musical works, similar to ISBN for books. ISMNs can be used to search for information about musical works using keywords, subject, author, title, or ISMN.

ISMNs are 13-digit codes that are assigned to musical works by the International Music Publishers Association (IMPA). The first three digits of an ISMN identify the country or region where the work was published, the next five digits identify the publisher, and the last five digits identify the specific work.

To search for information about a musical work using ISMN, you can use a website like ISMN International. Simply enter the ISMN in the search bar and you will be able to see information about the work, such as the title, composer, publisher, and publication date.

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The building's Internet Service Provider (ISP) would be able to see the websites visited in that browsing session. A rogue access point would only be able to intercept traffic if the journalist connected to it instead of the wired Ethernet connection.

In this scenario, the entities that might be able to see the websites visited by the investigative journalist during that browsing session are:
- II. The building's Internet Service Provider (ISP): The ISP is responsible for providing internet connectivity and can monitor the traffic that passes through their network. Their computer's web browser would not be able to reveal this information to anyone else.
- III. Their computer's web browser: The web browser stores the browsing history, so anyone with access to the journalist's computer could potentially see which websites were visited.

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Answer:

Either word or I would suggest using google docs and word and compare.

Explanation:

You can set up a resume in word.

Object-oriented modeling is a popular approach used in software development that revolves around the idea of modeling the real-world entities in the form of objects.

The foundation of object-oriented modeling is built upon two important concepts, which are objects and relationships. Objects are the fundamental building blocks of an object-oriented model that represent real-world entities and encapsulate their attributes and behaviors. Relationships, on the other hand, define how objects interact with each other and can be of different types such as composition, aggregation, and inheritance. In summary, object-oriented modeling is primarily based on the concepts of objects and relationships. It provides a powerful way to model complex systems and is widely used in software development. Additionally, class and inheritance are also important concepts in object-oriented modeling, which further enhance the flexibility and reusability of the code.

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Answer:

The department of defense

Explanation:

Answer:

Explanation:

It's also referred to as the back door

web pages that use server-side scripting are often created with the help of server-side languages such as:PHP,Perl,ASP.NET,JSP,ColdFusion.

Considering the advantages and disadvantages of replacing 10 desktop PCs with an upgrade.

You can increase your computer's speed and storage capacity for a fraction of the price of a new one by upgrading it, but you shouldn't install new parts in an outdated system if it won't give you the speed boost you need.

That might take a while. Upgrades are calculated risks that the consumer may or may not be willing to take because of the time commitment and potential for damage. Cost could be a significant hindrance. Whatever you could want in the newest iteration will be pricey.

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Answer:

plan

deploy

support

retire

support

retire

deploy

Explanation:

Answer:

Around 1843, she described the first computer principles, later built by Charles Babbage in the form of a mechanical calculator.

The Mack Repair Shop's costs for 2020 have been classified by activity. Machine tool repairs and servicing, machine setups, shop administration, and other activities were the major cost drivers in 2020.

The table below summarizes the costs of various activities at The Mack Repair Shop in 2020:

Activity Total Cost

Machine Tool Repairs and Servicing $1,050,000

Machine Setups $450,000

Shop Administration $300,000

Other Activities $200,000

Total $2,000,000

As shown in the table, Machine Tool Repairs and Servicing was the biggest cost driver, accounting for 52.5% of the total cost. This is followed by Machine Setups which accounted for 22.5% of the total cost. Shop Administration and Other Activities contributed 15% and 10% respectively to the total cost.

Classifying costs by activity is a useful technique for identifying areas where costs can be reduced or optimized. By analyzing the cost data by activity, The Mack Repair Shop can identify the key drivers of cost and focus on reducing these costs through process improvements or other means. For example, if setup times are identified as a major contributor to the overall cost, the company may consider investing in new machines that require less setup time. Overall, classifying costs by activity enables companies to better understand their cost structure and make informed decisions regarding cost optimization.

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Answer:

Explanation:

the molecules to slow down and they get closer to together.

:)

ReCaptcha is an ingenious service that uses them to facilitate in the digitization of books scanned into the Internet Archive.

What distinguishes reCAPTCHA from the Captcha system?

The Bottom Line for CAPTCHA. The purpose of a CAPTCHA is to distinguish between legitimate human users and malevolent bots. The CAPTCHA technique was created known as ReCAPTCHA. All websites that solely rely on conventional CAPTCHAs to deter fraudsters are at risk from sophisticated bots.

Exactly how are books digitized?

Using image scanners, which can be both manual and automated, physical books are converted into digital format. Some industrial image scanners position the book on a platen, a flat glass plate, and then scan the book by passing a light and optical array underneath the glass.

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Offset printing uses semi-transparent, premixed inks typically chosen from standard color-matching guides, such as Pantone.

Offset printing is a commonly used printing technique that involves transferring ink from a plate to a rubber blanket and then onto the printing surface, such as paper or cardboard. In offset printing, semi-transparent inks are often used, which allows for layering and mixing of colors. These inks are typically pre-mixed and selected from standard color-matching guides, such as the Pantone Matching System (PMS).

The Pantone system provides a standardized set of colors that can be reproduced consistently across different printing processes and locations. By using semi-transparent inks and color-matching guides, offset printing can achieve accurate and consistent color reproduction in printed materials.

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Answer:

Little Finger (A)

Explanation:

Answer:

It shows the flow of information and processes to solve the problem.

Explanation:

Answer:

C

Explanation:

Got it right on Edge 2021:)

Your welcome

When copying a formula from one cell to another in Excel, an absolute reference is a cell reference where the column and row coordinates remain constant.

Users of Microsoft Excel may format, arrange, and compute data in a spreadsheet.

Data analysts and other users can make information easier to view as data is added or changed by organising data using software like Excel.

Cell references come in two flavours: absolute and relative. When copied and filled into other cells, relative and absolute references behave in different ways.

A formula's relative references are altered when it is copied to another cell. Contrarily, regardless of where they are duplicated, absolute references hold true.

When a specific cell reference needs to be constant, an absolute cell reference can be used. Formulas, charts, functions, and other instructions frequently use references to cells in their syntax.

Thus, this can be concluded regarding absolute cell addressing.

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The role of Internal Audit in relation to the COCO ERM (Committee of Sponsoring Organizations of the Treadway Commission Enterprise Risk Management) framework involves helping the executive team understand and utilize the framework, coordinating risk assessments, formulating risk responses, ensuring consistent deployment of ERM, assisting with reporting and data analysis, and assessing the effectiveness of risk management.

Internal Audit plays a crucial role in helping the executive team understand and use the COCO ERM framework by providing periodic education and facilitating the development of audit plans aligned with the framework. This helps the organization in better understanding and applying ERM principles.

Internal Audit can also play a major role in coordinating risk assessments throughout the organization and helping formulate appropriate risk responses. By collaborating with key stakeholders, Internal Audit ensures that risk assessments are comprehensive and risk responses are tailored to mitigate identified risks effectively. This contributes to the consultative aspect of Internal Audit's role.

Furthermore, the Chief Audit Executive (CAE) can advocate for the establishment of a common language related to ERM within the organization. This helps in promoting a shared understanding of risk concepts and terminology, facilitating communication and collaboration across different departments.

Internal Audit also assists in ensuring the consistent deployment of ERM across the enterprise. By providing guidance, monitoring ERM implementation, and promoting best practices, Internal Audit helps in achieving a standardized and integrated approach to risk management.

Another important aspect of Internal Audit's role is assisting with the reporting of exposures and audit results on an aggregate enterprise basis. This involves collecting, analyzing, and synthesizing risk-related data to provide comprehensive reports to management and possibly the Board of Directors. Internal Audit uses the five components of the ERM framework (internal environment, objective setting, event identification, risk assessment, and risk response) to assess the effectiveness of risk management practices within the organization.

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Explanation:

This is the girl whose pocket was picked.

The top command gives a thorough breakdown of the system's processes and their resource utilization, including CPU and memory usage, in real time.

Vim and nano are the two command-line text editors available in Linux®. If you ever need to write a script, modify a configuration file, build a virtual host, or just make a short note for yourself, you can utilise one of these two alternatives.

However, if the percentage of privileged time is routinely higher than 90%, the computer's antivirus programme, other drivers, or another OS component may be the cause of the excessive CPU consumption. To determine what is causing this behaviour, you should evaluate it with your system administrator.

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