DA321 Multimodal Data Analysis & Learning Exam Solutions
DA321: Multimodal Data Analysis and Learning-I Exam Solutions
Question 1: Image Intensity Histogram and Convolution (4 Points)
Approach:
Constructing the Histogram:
- Create an 8 × 8 matrix with alternating black (0) and white (255) pixels.
- Count the frequency of pixel values (0 and 255) to plot the histogram.
- Resulting histogram:
- 32 pixels with intensity 0.
- 32 pixels with intensity 255.
Applying the 2 × 2 Smoothing Kernel:
- Kernel: 1/4.
- Apply convolution by moving the kernel over the image, assuming mirrored
Construction Quality Control: Materials & Execution
Item 15 – Quality Control
Quality control in construction ensures adherence to specifications through documented procedures, including receipt control and documentation filing. It aims to prevent errors in construction stages.
Quality control involves two phases:
- Control of Materials
- Control of Execution
Key Definitions
- Departure: Number of products in a transport unit.
- Remittance: Products from one source in a transport unit.
- Collection: Stored material amount.
- Batch of Material: Material quantity received
Number System Conversions and Boolean Simplification
Number System Conversions
A. Binary to Hexadecimal
Convert (10000101)₂ to hexadecimal:
1. Group the binary digits into sets of four, starting from the right: 1000 0101
2. Convert each group to its hexadecimal equivalent:
- 1000₂ = 8₁₆
- 0101₂ = 5₁₆
Therefore, (10000101)₂ = (85)₁₆
B. Hexadecimal to Decimal
Convert (AA)₁₆ to decimal:
(AA)₁₆ = (10 × 16¹) + (10 × 16⁰) = 160 + 10 = (170)₁₀
C. Decimal to Binary
Convert (5.15)₁₀ to binary:
Integer Part
Convert 5₁₀ to binary:
- 5
Human vs. Machine Translation: Bridging the Language Gap
Decoding Words or Capturing Meaning?
In the race to break language barriers, a fundamental question arises: are machines simply decoding words, or is human translation still crucial for capturing the true heart and meaning of a text? Machine translation relies on algorithms and vast datasets to instantly convert text between languages. However, it often struggles with nuanced meanings, idioms, and cultural contexts. Human translation, conversely, leverages the translator’s expertise, cultural understanding,
Read MoreInventory Management: A Comprehensive Guide
Inventory Management
Introduction
Inventories are collections of raw materials, supplies, components, work-in-progress, and finished products found throughout a company’s production and logistics channels. Maintaining these inventories can cost between 2% and 4% of their value annually.
Inventory Systems
An inventory system consists of policies and controls designed to:
- Monitor inventory levels
- Determine optimal stock levels
- Establish replenishment schedules
- Determine order sizes
Inventory Analysis
Inventory
Read MoreUnderstanding Airfoils: An In-Depth Guide
Airfoils
General Values:
NACA 2412 
Conservation of Mass: ṁ1 = ṁ2 (ρ1*V1*A1 = ρ2*V2*A2)
#1: Chamber (0.02 * cord length)
Bernoulli’s Principle: 
#2: Chamber Location (0.4 * cord length)
Dynamic Pressure (q): q = (1/2) * ρ * V^2
#3+4: Max Thickness (0.12 * cord length)
Ideal Gas Law: P = ρ / (R * T)
Lift Coefficient (cL): cL = L / (q * span * cord)
Gas Constant (R): R = (8.314 / M), where M is the molar mass of the gas. For air, R = 287 (m^2/(s^2K))
Drag Coefficient (cD): cD = D / (q * span * cord)
Total
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