A company specializing in industrial equipment sales wants to analyze thousands of customer feedback messages to identify key complaint themes. They do not have predefined complaint categories but want to uncover patterns in the data. Which technique should they use? A) Sentiment analysisB) Named entity recognitionC) Latent Dirichlet Allocation (LDA)D) Supervised machine learning Answer: C) Latent Dirichlet Allocation (LDA) Explanation: LDA is a topic modeling technique that helps businesses identify hidden themes in large collections of unstructured text, such as customer complaints. Since the company does not have predefined categories, LDA is the best choice. Sentiment analysis (option A) determines emotional tone but does not uncover themes. Named entity recognition (option B) extracts specific entities (e.g., company names), not complaint topics. Supervised machine learning (option D) requires labeled data, which the company does not have.

School Counselors may have additional duties such as test coordination, parent consultation, and referrals. 

In LDA, the number of topics (K) is automatically determined by the model and does not need to be manually specified. ✅ False Explanation:The number of topics (K) must be chosen manually before running LDA. Businesses experiment with different values of K to find the best balance between broad and specific topics in their analysis.

The US Agency for International Development (USAID) was originally established by the Kennedy Administration as an instrument of soft power, intended to win the hearts and minds of citizens in underdeveloped countries in order to build support for US interests.

When Russian President Putin annexed Crimea from Ukraine in 2014, the Obama administration responded with the largest package of military aid to Ukraine that the United States had ever provided a foreign country that was at war.

Show a complete 360-degree scan of the work area, computer table and keyboard, under  and around the work area/table and the entire room on camera. The work area should be clear ( no books and other electronic devices) except for scratch paper, calculator, pen/pencil.   Students should simulate classroom testing condition by taking each exam at a desk or table. Tests should not be taken on a bed, couch, or other informal setting. A clear and well-lit image of the student’s face must be fully visible, and all sounds must be clearly audible at all times. You must also follow the instructions provided in the online exam guidelines document throughout the exam. Failure to follow this instruction will result in grade zero for the exam. Did you follow all the instructions?  

Which of the following are application techniques for laser

When it initiated its push to end the war in Ukraine, the Trump administration dramatically changed U.S. foreign policy toward Ukraine and Europe through which of the following actions:

When copper is heated with an excess of sulfur, copper(I) sulfide is formed. In a given experiment, `x` g of copper was heated with excess sulfur to yield `y` g copper(I) sulfide. What is the percent yield?   Enter a numeric answer with 1 place after the decimal.

When copper is heated with an excess of sulfur, copper(I) sulfide is formed. In a given experiment, `x` g of copper was heated with excess sulfur to yield `y` g copper(I) sulfide. What is the percent yield?   Enter a numeric answer with 1 place after the decimal.