User contributions for Mr. MacKenty
30 May 2023
- 12:5112:51, 30 May 2023 diff hist +1,606 N Light detection and ranging (LIDAR) Created page with "Light Detection and Ranging, more commonly known as LiDAR, is a method of remote sensing that uses light in the form of a pulsed laser to measure distances to an object. These light pulses, combined with other data recorded by the airborne system, generate precise, three-dimensional information about the shape of the Earth and its surface characteristics. Here's a simplified explanation of how it works: # A LiDAR system sends out a pulse of light, usually in the form o..." current
- 12:5012:50, 30 May 2023 diff hist +1,581 N Key points/pairs Created page with "Key points, also known as feature points or interest points, are distinct and unique points in an image that are easy to find and accurately describe. These points are usually selected because they represent corners, edges, or other interesting aspects of the image, and they are used in many computer vision tasks for things like object recognition, image alignment, and 3D reconstruction. When multiple images are used (for example, in a video or a sequence of frames take..." current
- 12:4812:48, 30 May 2023 diff hist +1,803 N Keyframe selection Created page with "Keyframe selection is a term commonly used in the field of computer vision, especially in video processing and robotics. A keyframe is a frame in a sequence of frames (like a video or a series of images) that contains important or critical data. In video compression, for example, keyframes (also known as I-frames) are the frames from which subsequent frames are based. These keyframes serve as reference points and the frames in between are often compressed by storing onl..." current
- 12:4612:46, 30 May 2023 diff hist +1,710 N Inertial measurement unit (IMU) Created page with "An Inertial Measurement Unit, or IMU, is a device that measures and reports on a vehicle's velocity, orientation, and gravitational forces, using a combination of accelerometers, gyroscopes, and sometimes magnetometers. IMUs are typically used to aid in navigation and tracking systems, particularly when GPS data is unavailable or unreliable. Let's break down the components of an IMU: # '''Accelerometers:''' These measure linear acceleration. However, they can't disting..." current
- 12:4512:45, 30 May 2023 diff hist +1,832 N Human pose estimation (HPE) Created page with "Human pose estimation (HPE) is a computer vision task that involves determining the position and orientation of the human body, along with the positions of various body parts such as the head, arms, legs, and so on, usually in real-time. Here's a simplified way to think about it: Imagine you're looking at a photo of a person. You can probably tell what position they're in — maybe they're standing up straight, sitting down, or running. Now imagine trying to teach a com..." current
- 12:4412:44, 30 May 2023 diff hist +1,579 N GPS-denied environment Created page with "A GPS-denied environment is a location or situation where the Global Positioning System (GPS) signals are not available at all. This can occur for a number of reasons: # Indoor Locations: Buildings often block GPS signals, making them unavailable inside. # Underground or Underwater: Similarly, GPS signals can't penetrate underground or underwater. # Jamming or Spoofing: GPS signals can be intentionally disrupted or blocked using devices known as GPS jammers. Additionall..." current
- 12:4212:42, 30 May 2023 diff hist +12 GPS-degraded environment No edit summary current
- 12:4112:41, 30 May 2023 diff hist −5 GPS-degraded environment No edit summary
- 12:4112:41, 30 May 2023 diff hist −6 GPS-degraded environment No edit summary
- 12:4112:41, 30 May 2023 diff hist +1,760 N GPS-degraded environment Created page with "A GPS-degraded environment refers to any situation or location where the Global Positioning System (GPS) signals are unreliable, weak, or completely unavailable. This could be due to several reasons: 1. **Urban Areas**: In cities with high buildings, GPS signals can become degraded due to the "urban canyon" effect. The tall buildings can block direct signals from the satellites or cause multipath errors, where the signals bounce off multiple buildings before reaching th..."
- 12:3912:39, 30 May 2023 diff hist +1,612 N Global positioning system (GPS) signal Created page with "The Global Positioning System (GPS) is a satellite-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. Here's a simplified explanation of how it works: # The GPS system consists of a network of around 30 satellites orbiting the Earth, controlled by a series of ground stations. These satellites are always transmitting sign..." current
- 12:3812:38, 30 May 2023 diff hist +1,684 N Global map optimization Created page with "Global map optimization is an important concept in robotics, particularly in the field of simultaneous localization and mapping (SLAM). In essence, it's the process of improving the accuracy and consistency of a map that a robot has created of its environment. Here's how it works: as a robot moves through its environment, it's continually taking sensor measurements and using those to build up a map of the world around it. At the same time, it's using that map to estimat..." current
- 12:3712:37, 30 May 2023 diff hist +30 Edge computing No edit summary current
- 12:3612:36, 30 May 2023 diff hist +2,070 N Edge computing Created page with "Edge computing is a distributed computing paradigm that brings computation and data storage closer to the sources of data. This is done to improve response times and save bandwidth. The "edge" refers to the edge of a network, closer to the devices that produce or consume data, as opposed to a centralized data center or cloud. Here are the key steps involved in setting up an edge computing environment: # Identify the Need: The first step is to understand why you need ed..."
- 12:3412:34, 30 May 2023 diff hist +1,661 N Dead reckoning data Created page with "Dead reckoning is a process used in navigation to determine one's current position based on a previously known position, or fix, and advancing that position based upon known or estimated speeds over a period of time, and the direction in which the person or vehicle is known or estimated to have moved. The name "dead reckoning" comes from "deduced reckoning," sometimes abbreviated as 'ded' reckoning, which has been further abbreviated to "dead" reckoning. In the context..." current
- 12:3312:33, 30 May 2023 diff hist −4 Computer vision No edit summary current
- 12:3312:33, 30 May 2023 diff hist +1,468 N Computer vision Created page with "Computer vision is a subfield of artificial intelligence and computer science that focuses on enabling computers to understand and interpret the visual world. Essentially, it's about teaching computers to "see" and understand digital images or videos. The way computer vision does this is by taking images or videos, processing them, and then extracting useful information from them. This can involve many different tasks, such as: # Image Recognition: This is one of the m..."
- 12:3112:31, 30 May 2023 diff hist +1,679 N Bundle adjustment Created page with "Bundle adjustment is an optimization technique used in computer vision and photogrammetry, which are two fields that are fundamental for the functioning of rescue robots. You can think of rescue robots as needing to understand the world around them, just like you and me. When these robots look at a scene through their sensors, which typically include cameras, they need to determine the 3D positions of objects in the scene, as well as the position and orientation of the..." current
- 12:2712:27, 30 May 2023 diff hist +14 Robotics No edit summary
- 12:2712:27, 30 May 2023 diff hist +863 N Robotics Created page with "right|frame|Case study notes<ref>http://www.flaticon.com/</ref> * [[Bundle adjustment * [[Computer vision * [[Dead reckoning data * [[Edge computing * [[Global map optimization * [[Global positioning system (GPS) signal * [[GPS-degraded environment * GPS-denied environment * Human pose estimation (HPE) * Inertial measurement unit (IMU) * Keyframe selection * Key points/pairs * Light detection and ranging (LIDAR) * Object o..."
- 12:2512:25, 30 May 2023 diff hist +15 Programming →Advanced Programming
- 12:2412:24, 30 May 2023 diff hist 0 Welcome No edit summary current
- 12:2412:24, 30 May 2023 diff hist +35 2024 case study →Previous years case studies
- 12:2312:23, 30 May 2023 diff hist +22 2024 case study →Previous years case studies
- 12:2212:22, 30 May 2023 diff hist −8 2024 case study →Every term in the case study
- 12:2112:21, 30 May 2023 diff hist −407 2024 case study →Introduction
- 12:2112:21, 30 May 2023 diff hist +4 2024 case study →The case study
- 12:2012:20, 30 May 2023 diff hist −5 2023 case study No edit summary current Tag: Manual revert
- 12:1912:19, 30 May 2023 diff hist +5 2023 case study No edit summary Tag: Reverted
- 12:1912:19, 30 May 2023 diff hist 0 N File:D 4 comsc css 2305 1 e.pdf No edit summary current
- 12:1812:18, 30 May 2023 diff hist +1,670 N 2024 case study Created page with "right|frame|Case study<ref>http://www.flaticon.com/</ref> == Introduction == Higher-level students must write 3 papers. The case study is the third paper. Every year, the case study discusses a different topic. Students must become '''very very familiar''' with the case study. The IB recommends spending about a year studying this guide. This page will help you organize and understand the 2023 case study. Here are some external resources:..."
19 May 2023
- 08:3008:30, 19 May 2023 diff hist +1,070 Backpropagation No edit summary current
- 08:2908:29, 19 May 2023 diff hist +21 Machine learning →Terminology current
10 May 2023
- 09:4109:41, 10 May 2023 diff hist −10 Stack memory No edit summary current
9 May 2023
- 09:4509:45, 9 May 2023 diff hist +1,655 Recursion No edit summary current
- 09:4109:41, 9 May 2023 diff hist +17 Two-dimensional arrays →constructing a 2d array current
- 09:4009:40, 9 May 2023 diff hist −9 Two-dimensional arrays →constructing a 2d array
- 09:3909:39, 9 May 2023 diff hist +1,692 Two-dimensional arrays No edit summary
- 09:3609:36, 9 May 2023 diff hist 0 Two-dimensional arrays →a video
- 09:2809:28, 9 May 2023 diff hist +995 Two-dimensional arrays No edit summary
8 May 2023
- 09:1009:10, 8 May 2023 diff hist −2 Data representation →Standards current
- 09:1009:10, 8 May 2023 diff hist +1 Data representation →The way in which data is represented in the computer.
- 09:1009:10, 8 May 2023 diff hist +17 Data representation →The way in which data is represented in the computer.
7 May 2023
- 21:3521:35, 7 May 2023 diff hist +1,144 Different types of web pages →Different types of web pages current
26 April 2023
- 07:4607:46, 26 April 2023 diff hist −14 Abstract data structures No edit summary current
- 07:4407:44, 26 April 2023 diff hist +1,578 Collections No edit summary current
- 07:4107:41, 26 April 2023 diff hist +2,501 Binary tree No edit summary current
- 07:2807:28, 26 April 2023 diff hist +778 Tree →code sample current
- 07:2407:24, 26 April 2023 diff hist +1,084 Tree No edit summary
30 March 2023
- 13:4313:43, 30 March 2023 diff hist −140 Problem set assessment →Introduction current
- 12:5412:54, 30 March 2023 diff hist 0 Machine learning →Terminology
- 11:2111:21, 30 March 2023 diff hist 0 Machine learning →Terminology
- 11:0411:04, 30 March 2023 diff hist +3 Machine learning →Terminology
28 March 2023
- 09:3509:35, 28 March 2023 diff hist +1,335 N Date and times with Python Created page with "<syntaxhighlight lang="python"> import datetime # to get the current date and time: print(datetime.datetime.now()) # to get the current date: print(datetime.date.today()) # to get the current time: print(datetime.datetime.now().time()) # to get the current year: print(datetime.datetime.now().year) # to get the day of the week: print(datetime.datetime.now().weekday()) # to print the day of the week: print(datetime.datetime.now().strftime("%A")) # to ask the user to..." current
- 09:3409:34, 28 March 2023 diff hist +33 Python →Basic ideas current
23 March 2023
- 08:5308:53, 23 March 2023 diff hist +6 Policies →Real-time vs. best-effort scheduling current
- 08:5308:53, 23 March 2023 diff hist +1 Policies →Preemptive vs. non-preemptive scheduling
- 08:5308:53, 23 March 2023 diff hist +4 Policies →Time-sharing vs. batch processing
- 08:5308:53, 23 March 2023 diff hist +9,495 N Policies Created page with "right|frame|Resource Management<ref>http://www.flaticon.com/</ref> = Policies = == Definition of policies == In the context of computing and operating systems, policies refer to a set of rules, principles, or guidelines that determine how specific tasks or operations are performed. Policies help manage various aspects of a system, such as resource allocation, scheduling, security, and access control. They provide a framework for making decisions a..."
- 08:5208:52, 23 March 2023 diff hist +16 Resource management →Role of the operating system current
- 08:4208:42, 23 March 2023 diff hist +6 Scheduling →Factors affecting scheduling decisions current
- 08:4208:42, 23 March 2023 diff hist +54 Scheduling →Factors affecting scheduling decisions
- 08:4108:41, 23 March 2023 diff hist +20 Scheduling →Factors affecting scheduling decisions
- 08:4008:40, 23 March 2023 diff hist +2 Scheduling →Multilevel Queue scheduling
- 08:4008:40, 23 March 2023 diff hist 0 Scheduling →Short-term scheduling
- 08:4008:40, 23 March 2023 diff hist +3 Scheduling →Long-term scheduling
- 08:3908:39, 23 March 2023 diff hist +10,795 N Scheduling Created page with "right|frame|Resource Management<ref>http://www.flaticon.com/</ref> = II. Scheduling = == Definition of scheduling == Scheduling, in the context of computing and operating systems, refers to the process of assigning and managing the execution of processes or tasks on system resources, such as the CPU (Central Processing Unit). The primary goal of scheduling is to ensure that resources are utilized efficiently, while maintaining a balance between f..."
- 08:3908:39, 23 March 2023 diff hist +18 Resource management →Role of the operating system
21 March 2023
- 15:1115:11, 21 March 2023 diff hist −1,761 Operating system No edit summary current
- 15:1015:10, 21 March 2023 diff hist −207 Operating system →Explain the role of an operating system
- 14:4414:44, 21 March 2023 diff hist −43 Operating system →chatGPT
- 14:4214:42, 21 March 2023 diff hist +3,589 Operating system No edit summary
14 March 2023
- 07:4707:47, 14 March 2023 diff hist −31 Expressivity and usability on the semantic web →Do you understand this? current
13 March 2023
- 09:2109:21, 13 March 2023 diff hist +1,262 Resource management No edit summary
10 March 2023
- 08:5808:58, 10 March 2023 diff hist −147 MediaWiki:Sitenotice Blanked the page current Tags: Blanking Manual revert
9 March 2023
- 21:2621:26, 9 March 2023 diff hist +44 MediaWiki:Sitenotice No edit summary Tag: Reverted
- 21:2421:24, 9 March 2023 diff hist −74 MediaWiki:Sitenotice No edit summary Tag: Reverted
- 21:2321:23, 9 March 2023 diff hist −15 MediaWiki:Sitenotice No edit summary Tag: Reverted
- 21:2221:22, 9 March 2023 diff hist +192 MediaWiki:Sitenotice No edit summary Tag: Reverted
- 20:5820:58, 9 March 2023 diff hist −8 MediaWiki:Sitenotice →foo Tag: Blanking
- 20:5820:58, 9 March 2023 diff hist +8 N MediaWiki:Sitenotice Created page with " ==foo=="
8 March 2023
- 11:2411:24, 8 March 2023 diff hist −31 Ontology and folksonomy →Do you understand this? current
1 March 2023
- 12:4612:46, 1 March 2023 diff hist +1,730 N Just-in-time (JIT) compilation Created page with "Just-in-time (JIT) compilation is a technique used in computer programming to improve the performance of runtime execution. It involves dynamically compiling code at runtime instead of compiling it ahead of time and storing it in binary form. When a program is executed, the JIT compiler analyzes the code and identifies frequently executed parts of the code. It then compiles those parts into machine code and stores the compiled code in memory, making it available for reu..." current
- 12:4512:45, 1 March 2023 diff hist +37 Computer organization →Not part of IB curriculum but you should know this current
- 12:4512:45, 1 March 2023 diff hist +1,399 N Transpiling Created page with "Transpiling (short for "transformation" and "compiling") is the process of converting source code from one programming language to another while maintaining the same functionality. It is a common practice in software development when a developer wants to use modern language features or libraries that are not supported in the target environment. The transpiling process typically involves taking the source code written in the original language and running it through a tra..." current
- 12:4412:44, 1 March 2023 diff hist +18 Computer organization →Not part of IB curriculum but you should know this
23 February 2023
- 21:2421:24, 23 February 2023 diff hist −1 Welcome No edit summary
9 February 2023
- 13:3613:36, 9 February 2023 diff hist +117 F-measure No edit summary current
- 13:3213:32, 9 February 2023 diff hist −404 Power laws and predicting the development of the web No edit summary current
- 13:2813:28, 9 February 2023 diff hist +778 F-measure No edit summary
- 13:2613:26, 9 February 2023 diff hist +1,405 Cost function No edit summary current
- 12:0512:05, 9 February 2023 diff hist +103 Cost function →A fairly decent video
7 February 2023
- 10:1710:17, 7 February 2023 diff hist −33 Graph theory and connectivity of the web →Do you understand this? current
- 09:1109:11, 7 February 2023 diff hist +5 Web graph and sub-graphs No edit summary current
3 February 2023
- 13:5813:58, 3 February 2023 diff hist +1,168 N Stack memory Created page with "Stack memory is a region of computer memory used for storing da,ta that has a short lifespan such as function call frames, function parameters, and local variables. It operates on a Last-In-First-Out (LIFO) principle, where the most recently added data is the first to be removed. This makes stack memory ideal for storing temporary data and function calls, as the data is automatically cleaned up when the function returns. In a typical computer program, the stack is used..."
- 13:5713:57, 3 February 2023 diff hist +18 Computer organization →Not part of IB curriculum but you should know this
- 13:5713:57, 3 February 2023 diff hist +1,687 N Heap memory Created page with "Heap memory is a region of computer memory used for dynamic allocation of objects at runtime. It is a dynamic area of memory where blocks of memory are allocated and deallocated dynamically as needed, in contrast to the stack memory, where memory is allocated and deallocated in a last-in-first-out (LIFO) manner. Objects stored in the heap have a longer lifetime than objects stored in the stack, as heap-allocated objects persist until they are explicitly deallocated or un..." current
- 13:5513:55, 3 February 2023 diff hist +80 Computer organization No edit summary
2 February 2023
- 14:5414:54, 2 February 2023 diff hist +924 Microprocessors and sensor input in control systems No edit summary current
31 January 2023
- 09:1609:16, 31 January 2023 diff hist +70 Sensor, the processor and an output transducer No edit summary current