Naval Architecture Archives - Student Notes

AI Planning, Bayes’ Rule, and Machine Learning Concepts

Posted by admin on Apr 2, 2025 in Naval Architecture | 0 comments

Planning involves finding an action sequence that, when executed in the initial state, leads to a goal state. The challenge lies in creating a language expressive enough for diverse problems yet restrictive enough for efficient algorithms.

Representation of States and Goals

Planners decompose the world into logical conditions, representing a state as a conjunction of positive literals. The closed-world assumption dictates that unmentioned conditions are false.

A goal is a partially specified state,

Fricatives and Affricates: Articulatory Phonetics

Posted by admin on Mar 30, 2025 in Naval Architecture | 0 comments

Fricatives and Affricates: Parameters

Parameters

Voice: voiceless, voiced
POA: Dental, Alveolar, Post-alveolar, Glottal
MOA:
Degree of construction: fricative (vs. approximants vs. ‘stops’)
Speed of release of the closure: affricate (vs. plosives)
Laterality: median (vs. lateral) fricatives/affricates
Tongue shape: grooved fricative/affricate vs. slit fricative/affricate

Fricatives are produced by forcing air through a narrow channel. This channel is made between the active and passive articulators drawn

Star vs. Snowflake Schema: SQL Examples & Python Clustering

Posted by admin on Mar 30, 2025 in Naval Architecture | 0 comments

Snowflake Schema Example

Below are SQL examples demonstrating the structure of a Snowflake schema:

CREATE TABLE sales_fact (
    customer_id VARCHAR(10),
    car_id VARCHAR(10),
    date_id DATE
);

CREATE TABLE customer_dim (
    customer_id INT PRIMARY KEY,
    name VARCHAR(20),
    address VARCHAR(25),
    phone_no INT,
    city VARCHAR(10)
);

CREATE TABLE car_dim (
    car_id INT PRIMARY KEY,
    name VARCHAR(10),
    year INT,
    model VARCHAR(10)
);

CREATE TABLE date_dim (
    date_id INT PRIMARY

Educational Test Quality: Reliability, Practicality & Types

Posted by admin on Mar 28, 2025 in Naval Architecture | 0 comments

Educational Test Quality

Test Reliability

Defining Reliability

Reliability refers to the consistency with which a test measures abilities. This implies, for example, that the same score should ideally be obtained if the test is taken on one particular day or on the next. Sources of unreliability may be found in some features of the test itself or in the methods of scoring it.

In a research context, reliability also means the extent to which an independent researcher, analyzing the same data, would reach

Economics of Education: Midterm Exam Review & Key Concepts

Posted by admin on Mar 22, 2025 in Naval Architecture | 0 comments

Economics of Education: Midterm Exam Review

Session 1: Course Introduction

Article 1: It’s 2019, Why do 21st century skills still matter?

Education is shifting as we wrap up two decades of the 21st century.
Instead of relying on textbooks and teacher direction, these students have to think critically about unfolding events, collaborate with peers and adults, and make creative use of digital tools to communicate their ideas.
Yesterday’s focus on memorization and rote learning would not prepare students

Mastering Active Listening: Techniques, Benefits, and Examples

Posted by admin on Mar 4, 2025 in Naval Architecture | 0 comments

Five Key Elements of Active Listening

The key elements of active listening listed below will help you listen to the other person and increase the likelihood that the other person knows you are listening to them.

1. Pay Attention

Ensure you face the speaker.
Give the speaker your undivided attention and acknowledge their message.
Don’t look at your watch, phone, other people, or activities in or beyond the room.
Refrain from side conversations (even if they are whispered).

2. Show That You Are Listening

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