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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Software Development & Engineering | 15% | - Integration and deployment of multimodal AI systems - Python libraries for multimodal AI |
| Topic 2: Trustworthy AI | 5% | - Ethical considerations in AI development - Ensuring fairness and transparency |
| Topic 3: Experimentation | 25% | - Hypothesis testing - A/B testing - Model evaluation and comparison - Experimental design |
| Topic 4: Performance Optimization | 10% | - Monitoring and improving system efficiency - Techniques for optimizing AI performance |
| Topic 5: Core ML & AI Knowledge | 20% | - Basic concepts and terminology - Key algorithms and techniques |
| Topic 6: Data Analysis & Visualization | 10% | - Data preprocessing and feature engineering - Visualization techniques for multimodal data |
| Topic 7: Multimodal Data | 15% | - Applications and use cases - Handling and integrating text, image, and audio data |
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NEW QUESTION # 57
You are working on a project that involves generating high-resolution images using a StyleGAN architecture. You observe that while the generated images are generally realistic, they often exhibit 'water droplet' artifacts. What could be a cause and solution to these artifacts?
Answer: E
Explanation:
Water droplet artifacts often arise from aliasing in the upsampling layers of the generator network. Filtered upsampling (e.g., using a blur kernel before upsampling) or explicit anti-aliasing layers can smooth out the image and reduce these artifacts. Instabilities during adversarial training may amplify the artifacts. Gradient penalty helps stabilize the discriminator, thus improving the overall training stability and results.
NEW QUESTION # 58
Which visualization technique is suitable for representing the distribution of performance scores for different multimodal ML models over different modalities?
Answer: C
Explanation:
A box plot (box-and-whisker plot) summarizes the distribution of a numeric variable - median, interquartile range, and outliers - as a single compact glyph, and critically, multiple box plots can be placed side by side to compare distributions across categorical groupings. This makes it well suited to the scenario described:
comparing the spread and central tendency of performance scores across several models, further faceted by modality, in one readable figure. Box plots make skew, variance, and outlier prevalence immediately comparable across groups in a way a single summary statistic (like mean accuracy) cannot.
A histogram (B) shows the distribution of a single variable well but does not scale cleanly to side-by-side comparison across many model/modality combinations without becoming visually cluttered. A heatmap (A) is excellent for showing a matrix of values (e.g., mean score per model ร modality pair) but represents point estimates, not distributions - it cannot convey variance or spread. A pie chart (D) is inappropriate for any continuous performance metric.
In practice, a violin plot - which overlays a kernel density estimate on the box plot's summary statistics - is often preferred when the underlying distribution's shape (e.g., bimodality) matters, but among the given options, the box plot is the correct choice for distributional comparison across groups.
Reference: Data Analysis and Visualization domain - comparative distribution visualization, box plots vs.
heatmaps.
NEW QUESTION # 59
You are building a Generative A1 model that generates captions for images. You want to evaluate the quality of the generated captions.
Which evaluation metrics are MOST suitable for this task?
Answer: D
Explanation:
BLEU, ROUGE, and CIDEr are standard metrics used for evaluating the quality of generated text, particularly in image captioning and machine translation. These metrics compare the generated captions to reference captions and measure the similarity in terms of n-grams, word overlap, and other features. Other options are used for Classification problems (Accuracy Precision, Fl-score, AUC) and Regression Problems (MSE, RMSE).
NEW QUESTION # 60
Consider a multimodal generative A1 model that produces images based on textual prompts. The model is prone to generating images that are similar to those in the training data, resulting in a lack of novelty. Which hyperparameter adjustment would be MOST effective in increasing the diversity of the generated images?
Answer: C
Explanation:
Increasing the temperature parameter during decoding introduces more randomness into the sampling process, leading to a wider range of possible outputs and thus increasing the diversity of generated images. Decreasing batch size doesn't directly affect diversity. Reducing the learning rate affects training, not the diversity of generated images after training. Decreasing layers might reduce model capacity but not necessarily increase diversity. Increasing weight decay can prevent overfitting but doesn't directly address the lack of novelty in generated images.
NEW QUESTION # 61
What is a common method to reduce the computational cost of deep learning models during inference?
Answer: A
Explanation:
Pruning removes weights, neurons, or entire filters/channels that contribute minimally to model output - identified via magnitude-based criteria (removing near-zero weights), sensitivity analysis, or more sophisticated importance scoring - producing a smaller, sparser model that requires fewer computations and less memory at inference time while aiming to preserve accuracy through careful selection and, often, a fine- tuning step after pruning to recover any lost performance. Structured pruning (removing entire filters
/channels) yields hardware-friendly speedups on standard accelerators, while unstructured pruning (removing individual weights) achieves higher sparsity ratios but requires specialized sparse-computation hardware or libraries to realize actual speed gains.
The remaining options move in the wrong direction or address a different concern: adding more convolutional filters (B) increases model capacity and parameter count, which increases computational cost, the opposite of the stated goal. Increasing batch size (D) affects training throughput and memory usage per step but does not reduce the per-sample computational cost of inference - a larger batch does more total work, not less per inference call, and batch size at inference is often constrained by latency requirements rather than optimization goals. Option C's premise - selectively replacing activation functions with simpler ones in
"some neurons" - is not a standard or well-defined optimization technique; activation function choice is typically uniform within a layer and driven by training dynamics, not a piecemeal inference-cost lever.
Reference: Performance Optimization domain - pruning, alongside quantization and kernel fusion, as core inference-cost reduction techniques.
NEW QUESTION # 62
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