Crossover

Duration: 5 min

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Inside: a video lesson and guided study material.

Module outline

  1. About Course: UPPSC Course Overview
  2. Interview Preparation & Guidance: Interview Preparation
  3. Paper 1 | General Hindi: भाषा, लिपि, ध्वनि, वर्ण, अक्षर, स्वर, व्यंजन, मात्रा और संयुक्ताक्षर, वर्तनी, वर्ण-विन्यास, अनुस्वार, अनुनासिक, चंद्रबिंदु और ‘र’ के रूप, शब्द, पद और शब्द-भेद, संज्ञा और सर्वनाम, विशेषण और क्रिया, लिंग, वचन, पुरुष और कारक, काल, वाच्य, वाक्य और वाक्य-भेद, वर्णमाला, समास, संधि, विलोम शब्द, पर्यायवाची शब्द, सामान्य अशुद्धियाँ, अनेक शब्दों के लिए एक शब्द, मुहावरे और लोकोक्तियाँ, अपठित गद्यांश और अपठित पद्यांश, Multi-Topic Content (Cross-Concept Material)
  4. Paper 2 | General Studies: State Wise GK, Polity, Geography, History, GK- Current Affairs
  5. Paper 1 | Programming Language: Language Design, C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling, OOPS with C++
  6. Paper 1 | Database Management Systems: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, SQL, Relational Calculus, Transaction Management, Concurrency Control, ORDBMS, NoSQL
  7. Paper 1 | Cyber Security: Society, Law & Ethics, Cyber Threats and Malware Attacks, Role of Internet and Web Services, Security in Mobile and Wireless Computing, Electronic Data Interchange and E-Commerce, Physical Security and Cryptography Basics, Intrusion Detection Systems (IDS), Cyber Safety and Security, Ethical Hacking
  8. Paper 1 | Computer Organization and Architecture: Basics of COA, Programming the Basic Computer, Cache Memory Organization, Input Output Organisation, Instr Formats & Modes, Register Transfer and Microoperations, Control Unit Design
  9. Paper 1 | Computer Networks: Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, DLL: Framing, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Security
  10. Paper 1 | Design and Analysis of Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Dynamic Programming, Minimum Spanning Trees, Shortest Path Algos, Advanced Algorithms
  11. Paper 1 | Data Structures: Introduction to DS, Array, Linked List, Stack, Queue, Tree, Graphs, Hashing
  12. Paper 1 | Discrete Structures and Theory of Logic: Permutation and Combination, Set Theory, Relations, Functions, Propositional and Predicate Logic, Graph Theory, Group Theory
  13. Paper 1 | Software Project Management: Software Project Management
  14. Paper 2 | Operating Systems: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Threads & Process Creation, Deadlock, Memory Management, Virtual Memory, Disc Scheduling, File Management, Unix OS, Linux OS, Security
  15. Paper 2 | Compiler Design: Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization, Run Time Environment, Introduction to TOC, Deterministic FA (DFA), Non-Deterministic FA, Regular Expressions, Pushdown Automata & CFG, Complexity Theory
  16. Paper 2 | Artificial Intelligence & High Performance Computing: Approaches to AI, Search Algorithms, Game Playing, Knowledge Representation, Planning, Multi Agent Systems, Natural Language Processing, Emerging Tech Trends
  17. Paper 2 | Image Processing: Digital Image Fundamentals, Image Enhancement, Image Restoration, Color Image Processing, Image Compression
  18. Paper 2 | Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  19. Paper 2 | Computer Graphics: Basics of Computer Graphics, 2-D Geometrical Transforms and Viewing, 3-D Object Representation, Geometric Transformations and Viewing
  20. Paper 2 | Web Technologies: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Protocols & Services, Web Publishing & Hosting, Server Side & Security, Emerging Technologies, HTML Basics, JavaScript-Basics, Java
  21. Paper 2 | Soft Computing: Fuzzy Sets, Artificial Neural Networks, Genetic Algorithms
  22. Paper 2 | Distributed System: Distributed Systems
  23. UPPSC Live Class Recordings: UPPSC Polytechnic Lecturer 2025 (CS)
  24. Previous Year Papers:
  25. Mock Test:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

The lecture provides a comprehensive overview of genetic operators and encoding strategies used in genetic algorithms. It begins by explaining one-point crossover, where bits to the right of a designated point are swapped between parent chromosomes. The instructor then details two-point crossover, involving the exchange of bits between two random points, and uniform crossover, where each bit is chosen from either parent with equal probability. The session concludes by introducing various encoding methods, including binary, octal, hexadecimal, and permutation encoding, illustrating their application in solving problems like the knapsack problem.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The instructor introduces one-point crossover using a slide stating 'designated a crossover point. Bits to the right of that point are swapped'. She writes 'Parent 1 110 0101' and 'Parent 2 101 1110' on the screen. She circles the third bit as the crossover point. She demonstrates the swap, resulting in offspring '1101110' and '1010101'. A diagram shows red and blue bars representing chromosomes crossing over. She writes 'Crossover (Bridging) Foundation' and labels the results 'mother' and 'father'.

  2. 2:00 – 5:00 02:00-05:00

    The lecture moves to 'Two Points Crossover', defined as picking two points randomly and swapping bits in between. The instructor writes '110 0101' and '101 1101' and demonstrates the swap. Then she discusses 'Uniform Crossover', highlighting the text 'each bit is chosen from either parent with equal probability'. She writes '50%' next to a diagram showing bit strings '11001001' and '00101100' with arrows indicating swaps. She writes 'Encoding -> population [9 individual]' at the bottom.

  3. 5:00 – 5:25 05:00-05:25

    The topic shifts to 'Encoding', defined as 'the process of representing a solution in the form of a string'. The slide lists 'Binary Encoding', 'Octal Encoding' (using 0-7), and 'Hexadecimal Encoding' (using 0-9, A-F). Tables show examples: 'Chromosome 1 20346151' for Octal and 'Chromosome 1 A09B' for Hexadecimal. The instructor notes the advantage is 'smaller size'. She also mentions 'Permutation Encoding'. She writes 'Knapsack' and '01 10' to explain how binary encoding works for the knapsack problem, where each bit indicates if an item is in the knapsack.

The video systematically builds understanding of genetic algorithms by first detailing how genetic material is recombined through one-point, two-point, and uniform crossover. It then transitions to the foundational step of encoding, explaining how different number systems (binary, octal, hexadecimal) and permutation strategies represent solutions, specifically using the knapsack problem as a concrete example for binary encoding.

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