Notes, summaries, assignments, exams, and problems for University

Gestalt Psychology and Its Influence on UI Design

• Gestalt Psychology: An early 20th-century study focusing on the organizing principles of vision. Humans inherently seek patterns, a concept that significantly aids in User Interface (UI) design. For further reading, many visualization books cover this topic extensively.
• Gestalt Psychology: Understanding these innate patterns helps direct attention and organize information effectively. Utilize color and spacing strategically for impactful design.

Psychophysical Laws in Perception

• Weber's Law: States that the just-noticeable difference between two stimuli is proportional to their magnitude. This indicates that human perception operates based on percentage increases.
• Steven's Power Law: Describes the

Judgment of Emotions Through Facial Expressions

Experiment Details

Name of the Experimenter:

[Experimenter's Name]

Name of the Subject:

[Subject's Name]

Educational Qualification of the Subject:

[Subject's Educational Qualification]

Age of the Subject:

[Subject's Age]

Gender of the Subject:

[Subject's Gender]

Mental Status of the Subject:

[Subject's Mental Status]

Date of the Conduction of the Practical:

[Date of Experiment]

Problem

To measure the accuracy of judgment of emotions through facial expressions.

Introduction

Emotion is a subjective response, usually accompanied by physiological changes that are interpreted by the individual. This interpretation prepares the individual for action and is associated with behavioral changes. We often observe organisms... Continue reading "Judging Emotions Through Facial Expressions: A Psychology Experiment" »

Chapter 7: Picking and Order Fulfillment

Picking Process: Managing inventory demands efficiently, delivering the correct quantity and quality to minimize costs.

Types of Picking

• Case Picking: Using equipment like forklifts to handle items in boxes or drums.
• Pallet Picking: Retrieving whole palletized units.
• Broken Case Picking: Selecting individual items from opened cases, suitable for smaller orders.

Picking Technologies

• Pick to Light: Lights indicate item locations, potentially integrated with weight checks.
• Voice Recognition: Headsets provide picking commands; verbal confirmation is used for accuracy.
• RF-Directed: Uses RFID scanners for item verification.
• AS/RS and AGVs: Automated systems that reduce manual travel and picking time.

Chapter 8: Distribution

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Hotel Management Agreements

Definition

A hotel management contract is an arrangement whereby a hotel's owner contracts with a separate company, or an operator, to run a hotel. The owner retains limited control over the operation of the asset, often through measurable performance standards, albeit that the owner retains more risk than if the hotel were leased to the operator.

An operator, or hotel management company, hired to run a hotel business will provide supervision, expertise, established methods and procedures, and normally also a track record of verifiable past performance. The operator runs the hotel for a fee according to specified terms negotiated with the owner.

Term

The initial term of a management contract is the length of time that... Continue reading "Hotel Management Contracts vs. Tourist Operation Leases" »

The Spanish Constitution: The Supreme Legal Text

The Spanish Constitution is the supreme legal text. It is located at the apex of the regulatory hierarchy. Constitutional rules outline the legal framework in which private relationships unfold. It was promulgated in 1978. Constitutional provisions are grouped into two categories:

1. The dogmatic part, which comprises:
   • a) The Preamble (principles and founding values)
   • b) The Preliminary Title (Articles 1-9, basic constitutional principles configuring the political and territorial model and defining identifying marks of the Spanish State)
   • c) Title I (Articles 10-55, “On Fundamental Rights and Duties”, under which fundamental rights, civil liberties, and governing principles of social and economic policies

Principles of Economics

Scarcity and Economics

Scarcity refers to the limited nature of society's resources. Economics is the study of how society manages its scarce resources.

How People Make Decisions

1. People Face Tradeoffs

Every decision involves tradeoffs. A significant tradeoff society faces is between:

• Efficiency: When society gets the most from its scarce resources.
• Equality: When prosperity is distributed uniformly among society's members.

Tradeoff Example: To achieve greater equality, income could be redistributed from the wealthy to the poor. However, this can reduce the incentive to work and produce, shrinking the overall economy.

2. The Cost of Something Is What You Give Up to Get It

Decision-making requires comparing the costs and benefits... Continue reading "Principles of Economics: A Comprehensive Guide" »

Negotiation Strategies: A Comprehensive Overview

Understanding Your Interests

• Your Interests: List them. What would be a great deal for you? Why do you want these things? What is the relative value of the different issues for you?
• Options: What are the range of options you have on each interest?

Alternatives and Communication

• Your Alternatives: What happens for you if there is no deal? What is your BATNA (Best Alternative To a Negotiated Agreement)? What is the worst possible deal you would still accept?
• Your Communication: What will you ask/what will you convey? What information do you need to get? What questions should you ask to test them? What facts can you use to convince? How to best frame them? What tough questions are they likely to ask?

De Morgan's Law

De Morgan's Law: (Flip if the union is true)

, image of set: [min, max]; one-to-one: horizontal line test; Onto: Image must equal domain; Bijective: one-to-one and Onto

|| EV

||

Possible Outcomes and Probability Calculations

• Repetition formula: n^k
  • Example: 5 awards (k) and 30 students (n), with no limit to awards per student.
• Permutation formula: P(n, k) = n! / (n - k)!
  • Example: Each student gets 1 award, so the number of students decreases by one each award.
• No overlap probability: P(n, k) / repetition formula
• Arrangements: a = slots → a! can be multiplied by arrangements within slots
• Die sum probability:
  • List combinations that lead to the sum for each die.
  • If a die is rolled multiple times, each combination has (rolls)! permutations.
  • Add