JLL Hiring 2022

Role: Data Engineer 1

Location:Bangalore

Experience: Freshers(0-1)

Qualification: B.E/B.Tech/B.Sc

Apply Now: https://www.startupjobsportal.com/2022/07/jll-off-campus-drive-2022.html

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Open Positions for Investment Banker - Fund Accountant
Location - Bangalore
Shift - Rotational (US/UK)
PKG - 3 LPA
Work from Office
Training - 40hrs
Training Fees of rs. 40,000/- applicable only after Placements and release of offer letter.
Application Link : https://forms.gle/gMLcmXC8vLPia94u6
Apply before 3rd of july, 2022. Education: *B.com, BBA, M.Com, MBA, PGDM*

BlueOptima Off Campus Hiring 2022

Role: Graduate Data Analyst

Location: Bangalore

Experience: Freshers

Qualification: B.E/B.Tech

Batch: 2020/2021/2022 Batch

Apply Now: https://www.startupjobsportal.com/2022/07/blueoptima-off-campus-hiring-2022.html

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Colgate Off Campus Drive 2022

Role: Data Engineering – Technology Associate

Location: Mumbai

Experience: Freshers(0-1)

Qualification: B.E/B.Tech

Batch: 2020/2021/2022 Batch

Apply Now: https://www.startupjobsportal.com/2022/07/colgate-off-campus-drive-2022.html

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Free Course Starts From – 13th July 2022 (Wednesday), Few Hours Left!!

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AccioJob is an *IIT Delhi* alumni-led company that runs a *6 month Pay after Placement Full Stack Development Training.* Which mean you are accessing to free learning, and you only pay after you get placed & start working with your company.

Key Highlights of the program:
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NatWest Recruitment Notification 2022

Role: Data & Analytics Analyst

Location: Chennai

Experience: Freshers

Qualification: B.E/B.Tech

Batch: 2021/2022 Batch

Apply Now: https://www.startupjobsportal.com/2022/07/natwest-recruitment.html

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Barclays Recruitment Notification 2022

Role: Big Data Engineer

Location: Pune

Experience: Freshers(0-4)

Qualification: B.E/B.Tech

Apply Now: https://www.startupjobsportal.com/2022/07/barclays-recruitment-3.html


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TCS Fresher Hiring 2022

Role: Data Analyst

Location: Hybrid

Experience: Freshers

Qualification: B.E/B.Tech/M.E/M.Tech/BCA/MCA

Batch: 2021/2022 Batch

Apply Now: https://www.startupjobsportal.com/2022/08/tata-consultancy-services-fresher.html

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Pragma Edge Off Campus Drive For 2023, 2022, 2021 Batch

Role: Developer/Support Engineer

Qualification: B.Tech/BSc/M.Tech/BCA/MCA

Batch: 2021, 2022, 2023 Batch

Apply Now: https://www.startupjobsportal.com/2022/08/pragma-edge-off-campus-drive-2023.html

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DXC Technology Fresher Recruitment News 2022

Role: Associate Professional Data Analyst

Location: Bangalore

Experience: Freshers(0-1)

Qualification: B.E/B.Tech

Batch: 2020/2021/2022 Batch

Apply Now: https://www.startupjobsportal.com/2022/08/dxc-technology-fresher-2.html

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Mahindra Group Inviting Fresher 2022

Role: Data Science Engineer

Location: Across India

Experience: Freshers

Qualification: Any Graduate

Batch: Any Batch

Apply Now: https://www.startupjobsportal.com/2022/08/mahindra-group-inviting.html

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SSGM is hiring International BPO Hiring

Experience : 0 - 2 Yrs

Salary : 2.8 LPA + Good Incentives

Number Of Positions: 50

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AccioJob is an *IIT Delhi* alumni-led company that runs a 6 month Pay after Placement Full Stack Development Training.

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DATA SCIENCE INTERVIEW QUESTIONS

Q. What is a bias-variance trade-off?

A.  If the algorithm is too basic (hypothesis with linear eq. ), it may be prone to errors due to strong bias and low variance. If the algorithms are too sophisticated (hypothesis with a high degree eq. ), the variance and bias may be considerable. The new entries will not fare well in the latter scenario. Trade-off, also known as Bias Variance Trade-off, is something that exists between these two situations. There is a tradeoff between bias and variance because of this tradeoff in complexity. It's impossible for an algorithm to be both more complex and less complex at the same time.


Q. What are the support vectors in SVM?

A.  Support vectors are data points that are closer to the hyperplane and influence the position and orientation of the hyperplane. Using these support vectors, we maximize the margin of the classifier. Deleting the support vectors will change the position of the hyperplane. These are the points that help us build our SVM.



Q. Describe different regularization methods, such as L1 and L2 regularization?

A.  L1 regularization, also known as L1 norm or Lasso (in regression problems), combats overfitting by shrinking the parameters towards 0. This makes some features obsolete.  L2 regularization, or the L2 norm, or Ridge (in regression problems), combats overfitting by forcing weights to be small, but not making them exactly 0.


Q. What is correlation and covariance in statistics?

A.  Both covariance and correlation measure the relationship and the dependency between two variables. Covariance indicates the direction of the linear relationship between variables. Correlation measures both the strength and direction of the linear relationship between two variables. Correlation values are standardized. Covariance values are not standardized.