Glass allows for hands-free, point-of-view photography that is always available and instantly triggerable. This new type of photography enables capturing people met, interesting things seen, and information to remember. Computational photography techniques may also allow for low-light photography, seeing through objects, magnification, motion effects, and face recognition through Glass in the future. New business models and artistic styles could emerge from these new camera capabilities.
Virtual Forum Theater: Creating and Sharing Drama to Resolve Conflicts NML
Presented at the 1st Digital Media and Learning Conference at San Diego- February 2010 on Digital Media Production and Social Change Panel co-chaired by me.
The synchronization is not correct, so advance the slides on your own.
Author: Alice Mello Cavallo
The document discusses finding authentic and fulfilling work by following your calling. It suggests callings make people feel more authentic, connected to themselves and others, and alive. While the saying "do what you love and the money will follow" is appealing, the document notes success also requires overcoming failure. It describes the author's experiences in different vocations and realizing their strengths. Transitions in life and work involve internal and external changes. Effective leaders are chosen, not born, and have qualities like passion, motivation, strategic vision, and sound judgment. The document advises finding a middle way to a leadership role.
The document discusses the importance and benefits of storytelling for children. It notes that stories improve children's imagination and memory, help them understand the world, and introduce culture and language in a fun way. However, some children may not engage with stories or get too excited. The document also considers whether it's better to tell stories or read them aloud, and provides tips for effective storytelling techniques.
The document discusses 3D displays and their taxonomy. It begins with an introduction to the history and physiology of 3D vision. Various 3D display technologies are then covered, including glasses-bound stereoscopic displays and unencumbered automultiscopic displays. Source material rendering and capture are also discussed. The document concludes with a section on emerging technologies and a question and answer period.
This document outlines a course on 3D displays. It discusses both glasses-bound stereoscopic displays and unencumbered automultiscopic displays. For glasses-bound displays, it covers the different types of glasses including active shutter glasses using LCD screens and passive glasses using color filters, polarizers, or optical comb filters. It also provides instructions for building your own shutter glasses from readily available components.
In "An Open Life" with Michael Toms, Joseph Campbell discusses how to "incubate your destiny." Similar to "follow your bliss," this phrase and his additional comments give career explorers insight into the qualities needed to pursue an authentic career path.
Green screen techniques allow parts of an image to be replaced, which allows a small number of actors to portray large scenes, like the D-Day landings. Motion capture involves tracking markers placed on actors' bodies to capture their movements and apply them to digital characters. Markerless motion capture systems aim to capture more subtle movements without markers by tracking the body. Both techniques are used widely in movies and games to bring realistic digital characters and environments to life.
The document discusses using coded masks and modulation techniques to capture light field information and enable digital refocusing and 6D displays with a single 2D sensor. It proposes placing a coded mask in front of the sensor to heterodyne the light field and extract its 4D information. Several applications are mentioned, including coded illumination for motion capture, a 6D display using spatial and illumination variation, and a light field camera that can digitally refocus using a single photograph.
Virtual Forum Theater: Creating and Sharing Drama to Resolve Conflicts NML
Presented at the 1st Digital Media and Learning Conference at San Diego- February 2010 on Digital Media Production and Social Change Panel co-chaired by me.
The synchronization is not correct, so advance the slides on your own.
Author: Alice Mello Cavallo
The document discusses finding authentic and fulfilling work by following your calling. It suggests callings make people feel more authentic, connected to themselves and others, and alive. While the saying "do what you love and the money will follow" is appealing, the document notes success also requires overcoming failure. It describes the author's experiences in different vocations and realizing their strengths. Transitions in life and work involve internal and external changes. Effective leaders are chosen, not born, and have qualities like passion, motivation, strategic vision, and sound judgment. The document advises finding a middle way to a leadership role.
The document discusses the importance and benefits of storytelling for children. It notes that stories improve children's imagination and memory, help them understand the world, and introduce culture and language in a fun way. However, some children may not engage with stories or get too excited. The document also considers whether it's better to tell stories or read them aloud, and provides tips for effective storytelling techniques.
The document discusses 3D displays and their taxonomy. It begins with an introduction to the history and physiology of 3D vision. Various 3D display technologies are then covered, including glasses-bound stereoscopic displays and unencumbered automultiscopic displays. Source material rendering and capture are also discussed. The document concludes with a section on emerging technologies and a question and answer period.
This document outlines a course on 3D displays. It discusses both glasses-bound stereoscopic displays and unencumbered automultiscopic displays. For glasses-bound displays, it covers the different types of glasses including active shutter glasses using LCD screens and passive glasses using color filters, polarizers, or optical comb filters. It also provides instructions for building your own shutter glasses from readily available components.
In "An Open Life" with Michael Toms, Joseph Campbell discusses how to "incubate your destiny." Similar to "follow your bliss," this phrase and his additional comments give career explorers insight into the qualities needed to pursue an authentic career path.
Green screen techniques allow parts of an image to be replaced, which allows a small number of actors to portray large scenes, like the D-Day landings. Motion capture involves tracking markers placed on actors' bodies to capture their movements and apply them to digital characters. Markerless motion capture systems aim to capture more subtle movements without markers by tracking the body. Both techniques are used widely in movies and games to bring realistic digital characters and environments to life.
The document discusses using coded masks and modulation techniques to capture light field information and enable digital refocusing and 6D displays with a single 2D sensor. It proposes placing a coded mask in front of the sensor to heterodyne the light field and extract its 4D information. Several applications are mentioned, including coded illumination for motion capture, a 6D display using spatial and illumination variation, and a light field camera that can digitally refocus using a single photograph.
修习慈爱禅 Meditation On Loving Kindness (English & Chinese)teh K K
修习慈爱禅
中文翻译:Teh kk
A Power Point Presentation on the 'What', 'Why'and 'How' of Loving-Kindness Meditation or Metta Bhavana. Done by Bro. Oh Teik Bin from Lower Perak Buddhist Association, Teluk Intan, Perak, Malaysia.
This document discusses several unconventional marketing campaigns. It describes a campaign by Banda agency for an electronics retailer that featured the head of digital marketing dressed as a Christmas tree rapping. It also discusses a campaign by Bodo featuring a catchy song and video with various filming techniques. Additionally, it mentions a vending machine installed by sock brand Sammy Icon that dispensed two pairs of socks for a promotional price. The document analyzes these campaigns and their creative approaches to marketing.
Illustration showing internal corporate workflow process for complaints and legal matters. From intake of customer complaint to e-discovery and resolution.
Este documento describe los diferentes planes y servicios de salud y seguridad laboral ofrecidos por una empresa de asesoría técnica. Incluye planes integrales de medicina ocupacional, higiene industrial, seguridad industrial y gestión de recursos humanos, así como programas educativos en estas áreas. También detalla los costos y coberturas de cada plan para clientes de diferentes tamaños.
Du Web 2.0 à l’Entreprise 2.0 (Présentation Thèse - Raffaele COSTANTINO)Raffaele Costantino
Présentation utilisée lors de la soutenance de la thèse "Du Web 2.0 à l’Entreprise 2.0 - Quels enjeux et quels bénéfices liés à l’introduction des applications Web 2.0 au sein d’une PME" dans le cadre du Mastère Spécialisé en "Management de l'Innovation, de la Qualité et de l'Environnement".
IAB Europe Webinar Deck: Key Operational Considerations for Native Advertisin...IAB Europe
This document summarizes a webinar presented by IAB Europe on key operational considerations for native advertising and content marketing. It discusses definitions of native ad formats and content-based advertising from an IAB Europe white paper. Speakers from PulsePoint, Yahoo, and Teads discuss topics like distribution and optimization across platforms, targeting and creative strategy, and content marketing workflows. The webinar aims to provide guidance to businesses on applying relevant EU rules and best practices.
Virtual Training, Real Results: Exploring the Potential of VR in the WorkplaceAggregage
This webinar aims to educate attendees on the basics of VR technology, its applications across various industries, and its potential for transforming the way your employees learn, work, and interact.
This document provides an overview of resources for learning how to develop virtual reality applications using Unreal Engine. It begins by listing several high-profile VR projects created with Unreal Engine, then outlines learning resources available, including documentation, tutorials, courses, and community content. Key areas covered include getting started with VR platforms, best practices, motion controller setup, and using the VR editor. Updates from Epic on new templates, optimizations for VR development, and expanded platform support are also summarized.
Introduction to User Experience and User Interface Design: A One-Hour Crash C...Jason Hong
A one-hour crash course on UX design and User Interface Design. I talk about methods for understanding users (contextual inquiry, diary studies, bodystorming), basic design principles (layout, color, mental models, grid), rapid prototyping (building user interfaces quickly, paper prototypes), and evaluation (heuristic evaluation).
This document provides an agenda and overview of three topics: CloudyRun, UI, and iCapt. CloudyRun is a continuous integration and deployment service for JavaScript applications. It discusses features of CloudyRun like JavaScript testing with Jasmine. For UI, it covers common UI elements like headers, content areas, and footers, and layout patterns like sidebars next to main content. iCapt is briefly mentioned at the end as a screenshot testing tool, along with links to its GitHub page.
The document discusses three topics: CloudyRun, UI, and iCapt. CloudyRun is a JavaScript test runner that uses JavaScript and Jasmine for testing. UI discusses layout patterns like sidebars and grids. iCapt is a screenshot tool for capturing web pages and is available on GitHub.
Fabian Quosdorf (Wonderlamp Industries GmbH) VRBB Community PanelAugmentedWorldExpo
This document discusses storytelling techniques for virtual reality. It notes that VR allows compelling visual stories to be told to wide audiences without needing actors, special skills, or high budgets. It discusses both 360-degree videos where the camera is fixed and interactive VR where users can look and move around freely. Key points made include thinking in stages rather than shots for 360 content; using sound, scale, and motion cues to guide user attention; avoiding fast camera movements or cuts that can cause nausea; and developing content specifically for the VR medium.
This document summarizes Dan Robbins' presentation on designing 3D user interfaces. It discusses his general design methodology of starting simply and making prototypes to test limitations. For 3D design specifically, it emphasizes the importance of metaphors and combining related user actions. The document then walks through examples for a theater lighting design application, demonstrating initial designs, problems identified, and proposed solutions. It focuses on interfaces for object creation, editing light properties, changing views, and selecting objects. The goal is a natural and precise 3D UI for the target domain.
This document discusses 360-degree photography and video technologies. It begins with an agenda that covers understanding 360 cameras, live 360 video streaming, best practices for creating 360 tours, and emerging trends. Examples of 360 cameras are provided. Formats for 360 video and the stitching process needed to create panoramic images are explained. Tools for viewing 360 content on smartphones and creating virtual reality experiences are presented. The document concludes by introducing 3D photography technologies like light field and volumetric video.
The Pharo Evolution
When
Tue, July 14, 4:15pm – 4:45pm
Description
First name: Esteban
Last name: Lorenzano
Type: talk
Video Part1: https://www.youtube.com/watch?v=yzss4mzwAAo
Video Part2: https://www.youtube.com/watch?v=HEGBNC-uOuo
Abstract: How will Pharo look in releases 5, 6 and even 7? This talk will show the kitchen of Pharo, what we are working on and what we are planning for the future (and how we plan to achieve them).
Bio: Esteban Lorenzano, 43 years old. He studied -and let unfinished- Computer Sciences at Universidad de Buenos Aires, and worked since 1994 in several object oriented technologies (Delphi, C++, Java), where he scaled from “Junior Programmer” to “Senior Architect”. On 2007 he and two friends began a new start-up, Smallworks, an enterprise for agile developments, centered on Smalltalk. Currently, he is working in the RMoD INRIA team in Lille, France, as core developer for Pharo.
This document summarizes information about Pix4D, a company that develops mapping software using UAV/drone imagery. Pix4D was founded in 2011, is based in Lausanne, Switzerland and has 40 employees. The document discusses Pix4D's use of different camera lenses, including fisheye lenses, for drone mapping. It also covers topics like the relationship between data acquisition/processing costs and model accuracy, and automated image processing workflows in Pix4D software.
Creating Great Branded Videos With Your SmarthphoneChris Snider
AMA Madison presentation on making videos with your smartphone. Includes tips on storytelling, video tips, and apps and hardware to use with your smartphone.
YouTube Shooting, Uploading, and EmbeddingDrew Shope
The document provides tips on using YouTube to market products or services, including how to shoot good quality video, set up a YouTube account, upload and share videos, and embed videos on websites. It emphasizes planning content around a niche or specialty, creating video series around 30 seconds to 90 seconds long, and sharing videos on Facebook and embedding them on blogs to promote viewership. Proper framing, understanding video formats, and using descriptive keywords and phrases are also recommended for video search engine optimization.
This guide provides instructions for capturing ethereal seascapes using long exposures. It recommends including a strong foreground element and using a tripod, neutral density filters, and bulb mode to slow the shutter speed down to minutes long. This blurs the water into smooth patterns while maintaining some sense of movement. Composition and exposure are tweaked over multiple shots as the light changes at sunset. The final image shows reflections of the sky in the smoothed water around a rock silhouette.
修习慈爱禅 Meditation On Loving Kindness (English & Chinese)teh K K
修习慈爱禅
中文翻译:Teh kk
A Power Point Presentation on the 'What', 'Why'and 'How' of Loving-Kindness Meditation or Metta Bhavana. Done by Bro. Oh Teik Bin from Lower Perak Buddhist Association, Teluk Intan, Perak, Malaysia.
This document discusses several unconventional marketing campaigns. It describes a campaign by Banda agency for an electronics retailer that featured the head of digital marketing dressed as a Christmas tree rapping. It also discusses a campaign by Bodo featuring a catchy song and video with various filming techniques. Additionally, it mentions a vending machine installed by sock brand Sammy Icon that dispensed two pairs of socks for a promotional price. The document analyzes these campaigns and their creative approaches to marketing.
Illustration showing internal corporate workflow process for complaints and legal matters. From intake of customer complaint to e-discovery and resolution.
Este documento describe los diferentes planes y servicios de salud y seguridad laboral ofrecidos por una empresa de asesoría técnica. Incluye planes integrales de medicina ocupacional, higiene industrial, seguridad industrial y gestión de recursos humanos, así como programas educativos en estas áreas. También detalla los costos y coberturas de cada plan para clientes de diferentes tamaños.
Du Web 2.0 à l’Entreprise 2.0 (Présentation Thèse - Raffaele COSTANTINO)Raffaele Costantino
Présentation utilisée lors de la soutenance de la thèse "Du Web 2.0 à l’Entreprise 2.0 - Quels enjeux et quels bénéfices liés à l’introduction des applications Web 2.0 au sein d’une PME" dans le cadre du Mastère Spécialisé en "Management de l'Innovation, de la Qualité et de l'Environnement".
IAB Europe Webinar Deck: Key Operational Considerations for Native Advertisin...IAB Europe
This document summarizes a webinar presented by IAB Europe on key operational considerations for native advertising and content marketing. It discusses definitions of native ad formats and content-based advertising from an IAB Europe white paper. Speakers from PulsePoint, Yahoo, and Teads discuss topics like distribution and optimization across platforms, targeting and creative strategy, and content marketing workflows. The webinar aims to provide guidance to businesses on applying relevant EU rules and best practices.
Virtual Training, Real Results: Exploring the Potential of VR in the WorkplaceAggregage
This webinar aims to educate attendees on the basics of VR technology, its applications across various industries, and its potential for transforming the way your employees learn, work, and interact.
This document provides an overview of resources for learning how to develop virtual reality applications using Unreal Engine. It begins by listing several high-profile VR projects created with Unreal Engine, then outlines learning resources available, including documentation, tutorials, courses, and community content. Key areas covered include getting started with VR platforms, best practices, motion controller setup, and using the VR editor. Updates from Epic on new templates, optimizations for VR development, and expanded platform support are also summarized.
Introduction to User Experience and User Interface Design: A One-Hour Crash C...Jason Hong
A one-hour crash course on UX design and User Interface Design. I talk about methods for understanding users (contextual inquiry, diary studies, bodystorming), basic design principles (layout, color, mental models, grid), rapid prototyping (building user interfaces quickly, paper prototypes), and evaluation (heuristic evaluation).
This document provides an agenda and overview of three topics: CloudyRun, UI, and iCapt. CloudyRun is a continuous integration and deployment service for JavaScript applications. It discusses features of CloudyRun like JavaScript testing with Jasmine. For UI, it covers common UI elements like headers, content areas, and footers, and layout patterns like sidebars next to main content. iCapt is briefly mentioned at the end as a screenshot testing tool, along with links to its GitHub page.
The document discusses three topics: CloudyRun, UI, and iCapt. CloudyRun is a JavaScript test runner that uses JavaScript and Jasmine for testing. UI discusses layout patterns like sidebars and grids. iCapt is a screenshot tool for capturing web pages and is available on GitHub.
Fabian Quosdorf (Wonderlamp Industries GmbH) VRBB Community PanelAugmentedWorldExpo
This document discusses storytelling techniques for virtual reality. It notes that VR allows compelling visual stories to be told to wide audiences without needing actors, special skills, or high budgets. It discusses both 360-degree videos where the camera is fixed and interactive VR where users can look and move around freely. Key points made include thinking in stages rather than shots for 360 content; using sound, scale, and motion cues to guide user attention; avoiding fast camera movements or cuts that can cause nausea; and developing content specifically for the VR medium.
This document summarizes Dan Robbins' presentation on designing 3D user interfaces. It discusses his general design methodology of starting simply and making prototypes to test limitations. For 3D design specifically, it emphasizes the importance of metaphors and combining related user actions. The document then walks through examples for a theater lighting design application, demonstrating initial designs, problems identified, and proposed solutions. It focuses on interfaces for object creation, editing light properties, changing views, and selecting objects. The goal is a natural and precise 3D UI for the target domain.
This document discusses 360-degree photography and video technologies. It begins with an agenda that covers understanding 360 cameras, live 360 video streaming, best practices for creating 360 tours, and emerging trends. Examples of 360 cameras are provided. Formats for 360 video and the stitching process needed to create panoramic images are explained. Tools for viewing 360 content on smartphones and creating virtual reality experiences are presented. The document concludes by introducing 3D photography technologies like light field and volumetric video.
The Pharo Evolution
When
Tue, July 14, 4:15pm – 4:45pm
Description
First name: Esteban
Last name: Lorenzano
Type: talk
Video Part1: https://www.youtube.com/watch?v=yzss4mzwAAo
Video Part2: https://www.youtube.com/watch?v=HEGBNC-uOuo
Abstract: How will Pharo look in releases 5, 6 and even 7? This talk will show the kitchen of Pharo, what we are working on and what we are planning for the future (and how we plan to achieve them).
Bio: Esteban Lorenzano, 43 years old. He studied -and let unfinished- Computer Sciences at Universidad de Buenos Aires, and worked since 1994 in several object oriented technologies (Delphi, C++, Java), where he scaled from “Junior Programmer” to “Senior Architect”. On 2007 he and two friends began a new start-up, Smallworks, an enterprise for agile developments, centered on Smalltalk. Currently, he is working in the RMoD INRIA team in Lille, France, as core developer for Pharo.
This document summarizes information about Pix4D, a company that develops mapping software using UAV/drone imagery. Pix4D was founded in 2011, is based in Lausanne, Switzerland and has 40 employees. The document discusses Pix4D's use of different camera lenses, including fisheye lenses, for drone mapping. It also covers topics like the relationship between data acquisition/processing costs and model accuracy, and automated image processing workflows in Pix4D software.
Creating Great Branded Videos With Your SmarthphoneChris Snider
AMA Madison presentation on making videos with your smartphone. Includes tips on storytelling, video tips, and apps and hardware to use with your smartphone.
YouTube Shooting, Uploading, and EmbeddingDrew Shope
The document provides tips on using YouTube to market products or services, including how to shoot good quality video, set up a YouTube account, upload and share videos, and embed videos on websites. It emphasizes planning content around a niche or specialty, creating video series around 30 seconds to 90 seconds long, and sharing videos on Facebook and embedding them on blogs to promote viewership. Proper framing, understanding video formats, and using descriptive keywords and phrases are also recommended for video search engine optimization.
This guide provides instructions for capturing ethereal seascapes using long exposures. It recommends including a strong foreground element and using a tripod, neutral density filters, and bulb mode to slow the shutter speed down to minutes long. This blurs the water into smooth patterns while maintaining some sense of movement. Composition and exposure are tweaked over multiple shots as the light changes at sunset. The final image shows reflections of the sky in the smoothed water around a rock silhouette.
You've reached the phase of your start-up where you're considering making a video that tells your story. You've seen that one video from that one start-up your friend showed you that you thought was awesome and want to do something as good as that but you're not quite sure how to go about doing this since you have no experience in video production.
What's the process of video production? Should I do an animation or a live-action film? How long should the video be? Who should I contact? How much does it cost? How long does it take?
So many questions, so little time.
But stress no more, friend, for we are here to answer all your questions.
About the speakers:
We are Mirek Hamet and Ben Soussan, co-founders of Niveau2, an emerging montreal based video production house. Together we share a vast portfolio of commercial and artistic work in a variety of fields: fiction, non-fiction, promotional, comedy, animation and experimental film. We founded Niveau2 to use our cinematographic and storytelling expertise to help montreal start-ups showcase their awesome product.
Visual Regression Testing at the Speed of Unit Testing -- by Gil TayarApplitools
Full webinar recording: https://youtu.be/4FIvObHfCMQ -- Listen to Gil Tayar's webinar on the new Applitools SDKs for Storybook and CypressIO, which enable developers to test and validate the visual appearance of your application across all responsive platforms.
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Developers want their tests to run fast. In an increasingly agile world, waiting 10+ minutes for test results is a huge no-no. A new generation of browser automation tools recognize that need-for-speed and enable frontend developers to quickly automate their browser tests.
But those tests also need to check the application’s visual elements. Does the login page look OK? Does it look good in Firefox? What about mobile browsers, in 768px width? And does it still look good in 455px with a device pixel ratio of 2?
To check the visual quality of your application, across all browsers and in all those responsive widths, would necessitate a humongous grid of browsers, and an unreasonable amount of time. Far more than the 2-5 minutes usually available for a developer’s tests.
Applitools’ new Storybook and Cypress SDKs enable you to do just that: write a set of tests that run through your pages and components, and have the pages and components render in Applitools’ cloud, in parallel, on a large set of browsers and widths, and return the result in less than a minute.
Watch Gil Tayar's presentation, as he discusses the new generation of visual testing tools. Tools that move the burden of the visual work to cloud, and enable you to check what was till now impossible to check locally: the visual appearance of your application across all responsive platforms.
This document provides an overview of resources for learning how to make VR games and experiences in Unreal Engine. It discusses VR learning resources available in the Unreal Engine Learn tab as well as video tutorials, presentations, and links. Community resources for VR development from Mitchell McCaffrey and Carlos Coronado are also highlighted. The document covers best practices for VR development such as reducing motion sickness, ensuring high framerates, using profiling tools, and VR locomotion techniques. It emphasizes the importance of audio, lighting, and effects for high-quality VR.
Similar to Glass tti-vanguard-04dec14-san.key (20)
The document discusses various concepts in entity-relationship (E-R) modeling including: weak entity sets and how their primary keys are formed; reducing E-R diagrams to relational schemas; extended E-R features like specialization, generalization, and aggregation; and differences between E-R diagrams and UML class diagrams. Key symbols used in E-R notation are also summarized.
This document provides an overview of relational database design and normalization. It discusses the goals of database design as generating schemas without unnecessary redundancy and allowing easy data retrieval. Normalization aims to design schemas in a desirable normal form, such as Boyce-Codd normal form (BCNF) or third normal form (3NF). The document introduces key concepts like functional dependencies, normal forms, decomposition, and closure of functional dependencies, which are used to determine if a schema is properly normalized and how to decompose schemas if necessary.
This document provides an overview of relational database design concepts including normal forms and decomposition. It begins with an outline of topics to be covered such as algorithms for functional dependencies, decomposition using multi-valued dependencies, normal forms, and modeling temporal data. The document then reviews Boyce-Codd normal form and provides examples of testing for and decomposing relations into BCNF. It also introduces third normal form and covers testing for and decomposing relations into 3NF. Finally, it briefly discusses multi-valued dependencies and compares BCNF and 3NF.
This document provides an overview of resolution in propositional logic. It introduces resolution as a new rule of inference that allows inferring a resolvent clause from two clauses. It describes how to convert arbitrary well-formed formulas into conjunctions of clauses to use with resolution. Resolution refutations are discussed as a way to decide logical entailments by attempting to derive the empty clause. Various strategies for conducting resolution refutation searches more efficiently are also covered, including ordering strategies and refinement strategies. Finally, the document defines Horn clauses and their special properties that allow for linear-time deduction algorithms.
This document provides an overview of the Propositional Calculus. It discusses:
- The language of propositional calculus using atoms, connectives, and well-formed formulas
- Rules of inference like modus ponens, conjunction introduction, and disjunction introduction
- Defining proofs and theorems based on applying rules of inference
- Semantics by associating logical elements with truth values under interpretations
- Important concepts like validity, equivalence, entailment, and the soundness and completeness of rules of inference.
- The propositional satisfiability (PSAT) problem and solving techniques like exhaustive search and GSAT.
This document discusses adversarial search techniques for two-agent games with perfect information. It introduces the minimax procedure and how it recursively assigns values to nodes in a game tree by maximizing the value for the maximizing agent and minimizing for the minimizing agent. The alpha-beta pruning technique is described which improves search efficiency by pruning subtrees that cannot alter the minimax value of the root. Examples of applying minimax and alpha-beta to tic-tac-toe are provided. The document also discusses handling games of chance using expectimax search and learning effective evaluation functions from self-play.
This document discusses different approaches to solving constraint satisfaction problems including assignment problems. It provides examples of the eight queens problem and constraint propagation techniques. Constructive methods start with no assignments and add values satisfying constraints, while heuristic repair starts with a proposed solution and changes it to violate fewer constraints. Function optimization techniques like hill climbing and simulated annealing are also discussed.
The document discusses different methods for reinforcement learning, including learning heuristic functions from experiences, learning in explicit and implicit graphs, using rewards instead of goals for tasks, and different algorithms like temporal difference learning and value iteration that help agents learn optimal policies by assigning credit to relevant state-action pairs.
The document describes planning techniques in artificial intelligence, including STRIPS planning systems, forward and backward search methods, and partial-order planning. It discusses how STRIPS uses operators to describe state changes and searches for a sequence of actions to reach a goal state. Backward search methods work by regressing goals through operators to produce subgoals. Partial-order planning searches a plan space by transforming incomplete plans into more articulated plans until finding an executable plan.
This document provides an overview of the Situation Calculus, a formal logic framework for representing states, actions, and how actions transform states. It describes key components of the Situation Calculus including: (1) representing states as constants and using predicates to describe state properties, (2) representing actions and how they change state properties using effect axioms, (3) using frame axioms to represent properties that don't change with actions, and (4) generating plans by proving the existence of goal states and extracting the actions. Challenges with the approach include dealing with ramifications of actions and specifying all relevant preconditions and qualifications.
The document provides an overview of learning Bayes networks from data. It discusses learning the structure and conditional probability tables (CPTs) of a Bayes network given training data. When the network structure is known, the CPTs can be directly estimated from sample statistics in the training data, handling both cases of complete and missing data using techniques like expectation-maximization. When the structure is unknown, scoring metrics like minimum description length are used to search the space of possible structures to find the best fitting network. Dynamic decision networks extend this framework to model sequential decision making problems.
This document outlines probabilistic inference in Bayes networks. It begins with a review of probability theory concepts like joint probability, marginal probability, conditional probability, and Bayes' rule. It then discusses probabilistic inference in Bayes networks, including causal/top-down inference using evidence to determine probabilities, diagnostic/bottom-up inference using effects to determine causes, and "explaining away" where additional evidence makes other probabilities less certain. The document also covers uncertain evidence, D-separation to determine conditional independence, and inference techniques in polytrees.
This document discusses representing commonsense knowledge. It describes commonsense knowledge as everyday facts that most people understand, like objects falling when dropped or fish needing water. Representing all commonsense knowledge is difficult as there are no defined boundaries and some concepts cannot be described with sentences alone. The document outlines research areas in representing objects, materials, space, time, and physical processes. It also discusses knowledge representation using semantic networks and frames to organize taxonomic hierarchies and relationships between objects, properties, and categories in a graph structure. Nonmonotonic reasoning is also discussed for handling exceptions to default inferences.
Rule-based expert systems use facts and rules to achieve expert-level competence in solving problems. They consist of a knowledge base containing facts and rules, an inference engine that manipulates the knowledge base to deduce information, and an explanation subsystem. Rule-based systems apply logical rules to the known facts to determine unknown information. Inductive logic programming learns rules by generalizing from examples to cover positive instances while avoiding negative ones.
The document discusses knowledge-based systems and their ability to reason over extensive knowledge bases. It addresses the theoretical problems of soundness, completeness, and tractability when using logical reasoning systems. Horn clauses and PROLOG are introduced as more efficient ways to perform inference compared to full predicate calculus. Different methods for reasoning including forward chaining and truth and assumption-based maintenance are also summarized.
This document discusses resolution in predicate calculus. It covers topics like unification, predicate calculus resolution, converting well-formed formulas to clause form, using resolution to prove theorems, and answer extraction. It also discusses the equality predicate and paramodulation inference rule. The document provides examples to illustrate various concepts and techniques in resolution-based automated theorem proving in first-order logic.
This document provides an outline and overview of key concepts in resolution in predicate calculus, including:
- Unification, which allows resolving clauses that have matching but complementary literals
- Converting formulas to clause form by eliminating quantifiers and connectives
- Using resolution to prove theorems by deriving the empty clause
- The equality predicate and paramodulation, an inference rule used with resolution when equality is present
The document describes these concepts over multiple sections and provides examples to illustrate predicate calculus resolution.
The document discusses the predicate calculus and its use for representing knowledge. It introduces the motivation and basic components of the predicate calculus language, including terms, well-formed formulas, and quantifiers. It explains the semantics of the language including interpretations, models, and the semantics of quantifiers. Finally, it provides examples of how predicate calculus can be used to conceptualize and represent knowledge about the world.
This document discusses various heuristic search algorithms including A*, iterative-deepening A*, and recursive best-first search. It begins by introducing the concept of using evaluation functions to guide best-first search and preferentially expand nodes with lower heuristic values. It then presents the general graph search algorithm and describes how A* specifically reorders nodes using an evaluation function that considers path cost and estimated cost to the goal. Consistency conditions for the heuristic function are discussed which guarantee A* finds optimal solutions.
This document discusses uninformed search algorithms. It outlines breadth-first search, depth-first search, and iterative deepening search. Breadth-first search finds the shortest path but uses exponential memory. Depth-first search uses linear memory but may explore large parts of the search space without finding the goal. Iterative deepening search combines the benefits of depth-first search and guarantees of finding the shortest solution like breadth-first search.
1. What Google Glass means for the
future of photography
Marc Levoy
Computer Science Department
Stanford University
TTI Vanguard [next]
December 4, 2014
mostly retired
from Stanford
to work at...