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Introduction Metaverse is the next evolution of digital technologies. It includes 3D virtualization and will transform digital technologies in the next 5-10 years. Elements of a Metaverse are considered very important related to industry 4.0. Metaverse will have numerous technologies comprising the below: Digital currency Online shopping Workplace automation Social media Digital Humans Natural Language Processing Infrastructure Device independence In this article, we would understand what Metaverse is and what are its different elements? Description Metaverse is a combined virtual space. It is made by the convergence of virtually improved physical and digital reality. We can also say that it is device-free and is not owned by a single seller. Metaverse is known as an independent virtual economy. It is allowed by digital currencies and non-fungible tokens (NFTs). It characterizes a combinatorial innovation because it needs many technologies and trends to function. The following are contributing tech capabilities: Augmented reality (AR) Flexible work styles Head-mounted displays (HMDs) An AR cloud The Internet of Things (IoT) 5G Artificial intelligence (AI) Spatial technologies For better understanding, the concepts of a Metaverse, consider it as the next version of the Internet. That begins as separate bulletin boards and independent online destinations. In the long run, these destinations developed sites on a virtual shared space same as how a Metaverse would develop. Importance of the Metaverse There is a lot of exhilaration around Metaverse. Greatly of it driven by technology companies tactically claiming to be Metaverse companies. Similarly, Metaverse creates to improve or augment the digital and physical realities of people. Furthermore, deeds that now happen in siloed locations will finally occur in a single Metaverse, for example: Buying clothes and fittings for online avatars Business digital land and building virtual homes Take part in a virtual social experience Supermarkets run in virtual malls through immersive commerce With virtual classrooms to practice immersive learning Purchasing digital art, breakables, and assets (NFTs) Networking with digital humans for onboarding business connections It is likely that a Metaverse will make available determined, decentralized, joint, and interoperable opportunities. It will create the business models, which will allow organizations to extend digital business. Elements of a Metaverse Gartner is a technology research and consulting company. It described the elements of a Metaverse in the below diagram. Elements of a Metaverse Applications Virtual reality The social network company Facebook launched a social VR world named Facebook Horizon in 2019. Facebook chairman Mark Zuckerberg confirmed in 2021, a company pledged to develop a metaverse. Several VR technologies promoted by Meta Platforms remain to be developed. Microsoft developed the VR Company AltspaceVR in 2017. Microsoft has since applied metaverse features for example virtual avatars and meetings thought in virtual reality into Microsoft Teams. Future implementations for metaverse technology comprise refining work output, shared learning environments, e-commerce, real estate, and fashion. Video games Many works of metaverse technologies have by now been developed inside modern internet-enabled video games. The Second Life is combined several features of social media into a determined three-dimensional world with the user signified as an avatar. Social functions are repeatedly an integral story in many hugely multiplayer online games. Social-based gameplay of Minecraft characterizes an innovative analog of a metaverse. Hardware Technology Entrance points for metaverse comprise general-purpose computers and smartphones. Also, included augmented reality (AR), mixed reality, virtual reality (VR), and virtual world technologies. Need on VR technology has limited metaverse growth and wide-scale acceptance. Limits of moveable hardware and the requirement to balance cost and design have produced a deficiency of high-quality graphics and mobility. Lightweight wireless headsets have fought to attain the retina display pixel density required for visual immersion. Present hardware development is dedicated to choking limitations of VR headsets, sensors, and growing immersion with haptic technology. Software Technology There has been nothing for wide-scale acceptance of a uniform technical requirement for metaverse applications. Current applications depend chiefly on proprietary technology. Interoperability is the main anxiety in metaverse development. There have been a number of virtual environment standardization projects. Metaverse is known as a three-dimensional Internet that is occupied with live people. The technology company NVIDIA declared in 2021 they will accept USD for their metaverse development tools. The OpenXR is an open standard for entree into virtual and augmented reality plans and involvements. It has been accepted by Microsoft for HoloLens 2, Meta Platforms for the Oculus Quest, and Valve for SteamVR. For more details visit: https://www.technologiesinindustry4.com
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Elements-of-a-Metaverse
Introduction Metaverse is the next evolution of digital technologies. It includes 3D virtualization and will transform digital technologies in the next 5-10 years. Elements of a Metaverse are considered very important related to industry 4.0. Metaverse will have numerous technologies comprising the below: Digital currency Online shopping Workplace automation Social media Digital Humans Natural Language Processing Infrastructure Device independence In this article, we would understand what Metaverse is and what are its different elements? Description Metaverse is a combined virtual space. It is made by the convergence of virtually improved physical and digital reality. We can also say that it is device-free and is not owned by a single seller. Metaverse is known as an independent virtual economy. It is allowed by digital currencies and non-fungible tokens (NFTs). It characterizes a combinatorial innovation because it needs many technologies and trends to function. The following are contributing tech capabilities: Augmented reality (AR) Flexible work styles Head-mounted displays (HMDs) An AR cloud The Internet of Things (IoT) 5G Artificial intelligence (AI) Spatial technologies For better understanding, the concepts of a Metaverse, consider it as the next version of the Internet. That begins as separate bulletin boards and independent online destinations. In the long run, these destinations developed sites on a virtual shared space same as how a Metaverse would develop. Importance of the Metaverse There is a lot of exhilaration around Metaverse. Greatly of it driven by technology companies tactically claiming to be Metaverse companies. Similarly, Metaverse creates to improve or augment the digital and physical realities of people. Furthermore, deeds that now happen in siloed locations will finally occur in a single Metaverse, for example: Buying clothes and fittings for online avatars Business digital land and building virtual homes Take part in a virtual social experience Supermarkets run in virtual malls through immersive commerce With virtual classrooms to practice immersive learning Purchasing digital art, breakables, and assets (NFTs) Networking with digital humans for onboarding business connections It is likely that a Metaverse will make available determined, decentralized, joint, and interoperable opportunities. It will create the business models, which will allow organizations to extend digital business. Elements of a Metaverse Gartner is a technology research and consulting company. It described the elements of a Metaverse in the below diagram. Elements of a Metaverse Applications Virtual reality The social network company Facebook launched a social VR world named Facebook Horizon in 2019. Facebook chairman Mark Zuckerberg confirmed in 2021, a company pledged to develop a metaverse. Several VR technologies promoted by Meta Platforms remain to be developed. Microsoft developed the VR Company AltspaceVR in 2017. Microsoft has since applied metaverse features for example virtual avatars and meetings thought in virtual reality into Microsoft Teams. Future implementations for metaverse technology comprise refining work output, shared learning environments, e-commerce, real estate, and fashion. Video games Many works of metaverse technologies have by now been developed inside modern internet-enabled video games. The Second Life is combined several features of social media into a determined three-dimensional world with the user signified as an avatar. Social functions are repeatedly an integral story in many hugely multiplayer online games. Social-based gameplay of Minecraft characterizes an innovative analog of a metaverse. Hardware Technology Entrance points for metaverse comprise general-purpose computers and smartphones. Also, included augmented reality (AR), mixed reality, virtual reality (VR), and virtual world technologies. Need on VR technology has limited metaverse growth and wide-scale acceptance. Limits of moveable hardware and the requirement to balance cost and design have produced a deficiency of high-quality graphics and mobility. Lightweight wireless headsets have fought to attain the retina display pixel density required for visual immersion. Present hardware development is dedicated to choking limitations of VR headsets, sensors, and growing immersion with haptic technology. Software Technology There has been nothing for wide-scale acceptance of a uniform technical requirement for metaverse applications. Current applications depend chiefly on proprietary technology. Interoperability is the main anxiety in metaverse development. There have been a number of virtual environment standardization projects. Metaverse is known as a three-dimensional Internet that is occupied with live people. The technology company NVIDIA declared in 2021 they will accept USD for their metaverse development tools. The OpenXR is an open standard for entree into virtual and augmented reality plans and involvements. It has been accepted by Microsoft for HoloLens 2, Meta Platforms for the Oculus Quest, and Valve for SteamVR.
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Pig-and-Python
Introduction Pig and Python are very widespread systems for executing complex Hadoop map-reduce-based data-flows. It enhances a layer of abstraction on top of Hadoop’s map-reduce mechanisms. That is with the intention of permitting developers to take a high-level view of the data and operations on that data. Pig enables us to do things more openly. For instance, we may join two or more data sources. Writing a join as a map and reduce function is a bit of a drag and it’s commonly value avoiding. Therefore, Pig is great as it makes simpler multifaceted tasks. It offers a high-level scripting language that permits users to take more of a big-picture view of their data flow. Pig is particularly inordinate as it is extensible. This article will emphasize its extensibility. At the end of this article, we will be able to write PigLatin scripts that execute Python code as a part of a larger map-reduce workflow. Description Pig is composed of two main parts: A high-level data-flow language is called Pig Latin. An engine that analyses improves, and performs the Pig Latin scripts as a series of MapReduce jobs that are run on a Hadoop cluster. Pig is at ease to write, comprehend, and maintain as it is a data transformation language that enables the processing of data to be described as a sequence of transformations. It is similarly highly extensible through the use of the User Defined Functions (UDFs). User-Defined Functions (UDFs) A Pig UDF permits custom processing to be written in many languages, for example, Python. It is a function that is nearby to Pig. On the other hand, it is written in a language that isn’t PigLatin. Pig permits us to register UDFs for use within a PigLatin script. A UDF requires to fit a precise prototype An instance of a Pig application is the Extract, Transform, Load (ETL) process. That defines how an application extracts data from a data source, changes the data for querying and examination drives. It also loads the result onto a target data store. When Pig loads the data, it may execute projections, iterations, and other transformations. UDFs allow more multifaceted algorithms to be useful during the change phase. It may be stored back in HDFS after the data is done being processed by Pig. PigLatin scripts We can write the simplest Python UDF as; from pig_util import outputSchema @outputSchema('word:chararray') def hi_world(): return "hello world" The data output from a function has a particular form. Pig likes it if we require the schema of the data as then it distinguishes what it may do with that data. That’s what the output_schema decorator is for. There are a couple of diverse means to state a schema. If that were saved in a file named my_udfs.py we will be able to make use of it in a PigLatin script as; -- first register it to make it available REGISTER 'myudf.py' using jython as my_special_udfs users = LOAD 'user_data' AS (name: chararray); hello_users = FOREACH users GENERATE name, my_special_udfs.hi_world(); UDF arguments UDF has inputs and outputs as well. Look at the below some UDFs: def deal_with_a_string(s1): return s1 + " for the win!" def deal_with_two_strings(s1,s2): return s1 + " " + s2 def square_a_number(i): return i*i def now_for_a_bag(lBag): lOut = [] for i,l in enumerate(lBag): lNew = [i,] + l lOut.append(lNew) return lOut The following are UDFs in a PigLatin script: REGISTER 'myudf.py' using jython as myudfs users = LOAD 'user_data' AS (firstname: chararray, lastname:chararray,some_integer:int); winning_users = FOREACH users GENERATE myudfs.deal_with_a_string(firstname); full_names = FOREACH users GENERATE myudfs.deal_with_two_strings(firstname,lastname); squared_integers = FOREACH users GENERATE myudfs.square_a_number(some_integer); users_by_number = GROUP users by some_integer; indexed_users_by_number = FOREACH users_by_number GENERATE group,myudfs.now_for_a_bag(users); Outside Standard Python UDFs We can’t use NumPy from Jython. Moreover, Pig doesn’t actually permit Python Filter UDFs. We may only do stuff as: user_messages = LOAD 'user_twits' AS (name:chararray, message:chararray); --add a field that says whether it is naughty (1) or not (0) messages_with_rudeness = FOREACH user_messages GENERATE name,message,contains_naughty_words(message) as naughty; --then filter by the naughty field filtered_messages = FILTER messages_with_rudeness by (naughty==1); -- and finally strip away the naughty field rude_messages = FOREACH filtered_messages GENERATE name,message; Python Streaming UDFs Pig enables us to look into the Hadoop Streaming API. This allows us to get around the Jython issue when we require it to. Hadoop lets us write mappers and reducers in any language that provides us access to stdin and stdout. Therefore, that’s attractive much any language we want. Similar to Python 3 or even Cow. The following is a simple Python streaming script, let’s call it simple_stream.py: #! /usr/bin/env python import sys import string for line in sys.stdin: if len(line) == 0: continue l = line.split() #split the line by whitespace for i,s in enumerate(l): print "{key}\t{value}\n".format(key=i,value=s) # give out a key value pair for each word in the line The purpose is to develop Hadoop to run the script on each node. The hashbang line (#!) requires to be valid on every node. Each import statement must be valid on every node. Also, any system-level files or resources accessed inside the Python script must be accessible in the same way on every node. Use with simple_stream script DEFINE stream_alias 'simple_stream.py' SHIP('simple_stream.py'); user_messages = LOAD 'user_twits' AS (name:chararray, message:chararray); just_messages = FOREACH user_messages generate message; streamed = STREAM just_messages THROUGH stream_alias; DUMP streamed; The over-all format we are using is: DEFINE alias 'command' SHIP('files'); The alias is the name used to access the streaming function from inside the PigLatin script. The command is the system command Pig would call when it is essential to use the streaming function. Finally, SHIP tells Pig those files and dependencies Pig desires to distribute to the Hadoop nodes for the command to be able to work.
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