Basic Data Mining Questions


• What is “filter” and “wrapper” method in feature selection?

• What’s the advantage and disadvantage of them?

• What are the common methods to impute missing data?

• What’s the problem associated with learning using imbalance datasets? What are the



• Explain the bottom-up and top-down approaches in hierarchical clustering.

• How to you construct dendrogram from a given data set (HW)?

• What is single-link, complete-link, average link, centroid link?

• How does k-means algorithm work?

• What is SSE in k-means?

• How to select the optimal k?

• What is a k-mediods method? What’s the advantage of it over k-means?

• How to measure clustering quality (internal – scatter criteria, external – precision, recall,

…etc )

Apriori Algorithm

• What is association rule mining? What are its applications?

• What is a strong association rule?

• How to calculate support, confidence of a given association rule?

• What is the apriori properity?

• How to generate C_i’s and L_i’s?

• How to evaluate a strong association is interesting or not: lift? What’s the implication of

lift >1, = 1, < 1?


• What is a sequential pattern?

• What is the apriori property in sequence mining?

• How to generate the C_i’s and L_i’s?

Time series

• What are the four components of a time series?

• What is an auto-regression model? How to construct lagged predictors?

• Why do we need DTW?

• What are the 3 properties a warping path must follow?

• How to find DTW give a cost matrix?

Taidot: tiedonlouhinta

Näytä lisää: visual basic data mining, data mining questions answers, data mining association rules apriori algorithm, data mining quiz questions and answers, data mining exam questions and answers, data mining questions and answers pdf, data warehousing and data mining question bank pdf, only data mining interview questions and answers pdf, dental materials viva questions, data mining questions papers, data mining short question, technical writing, statistics, data mining apriori algorithm, data mining visual basic, apriori data mining example, data mining apriori, source code data mining association ruleswith visual basic, apriori data mining, retrieve data access display visual basic

Tietoa työnantajasta:
( 8 arvostelua ) shanhai, United States

Projektin tunnus: #15877874

12 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_26% %project_currencyDetails_sign_sub_27% tähän työhön

$25 USD 1 päivässä
(7 arvostelua)
$60 USD 2 päivässä
(3 arvostelua)

Hi, I have 9 yrs of experience in data analytics with [login to view URL] in operational Research Technique - Predictive modeling, Machine Learning, Customer Analytics Tools - Python, SAS, SPSS and R Programming Please Lisää

$61 USD 3 päivässä
(1 arvostelu)
$35 USD 2 päivässä
(1 arvostelu)

Hello I can start working right now and finish this project in the deadline. Your project will be realized according to your requirements and direction. I always work with high level of accuracy, meet deadlines and Lisää

$55 USD 2 päivässä
(0 arvostelua)
$35 USD 2 päivässä
(0 arvostelua)

Subject expert in data warehousing and data mining. Taught to final year [login to view URL] students for 5 consecutive years.

$25 USD 1 päivässä
(0 arvostelua)

I know the machine learning algorithms for the graduated department of statistics. I will answer questions using examples. Relevant Skills and Experience statistical and machine learning techniques, application areas. Lisää

$20 USD 1 päivässä
(0 arvostelua)

21 year of Industry experience with a strong hold on the statistical concept and data model. Have done two certifications in these fields:  Post graduate Diploma in Applied statistics with specialization in industri Lisää

$20 USD 1 päivässä
(0 arvostelua)
$25 USD 1 päivässä
(0 arvostelua)
$25 USD 1 päivässä
(0 arvostelua)

Siempre encuentro las mejores soluciones y todo lo resuelvo con mucho análisis y mucha lógica a una gran velocidad.

$66 USD 4 päivässä
(0 arvostelua)