Temporal database, Multimedia database, Access control, Flow controlPooja Dixit
Temporal database, There are mainly two different notions of time, Multimedia database , Content of Multimedia Database management system :, Types of multimedia applications :
Temporal database, Multimedia database, Access control, Flow controlPooja Dixit
Temporal database, There are mainly two different notions of time, Multimedia database , Content of Multimedia Database management system :, Types of multimedia applications :
For more detail visit : https://techforboost.blogspot.com
https://youtu.be/OcQZVc7pZZA
A multimedia database is a database that include one or more primary media file types such as .txt (documents), .jpg (images), .swf (videos), .mp3 (audio), etc.
PHP provides access to a great number of different database systems, many of which are relational in nature and can be interrogated using Structured Query Language (SQL).
Spatial Database Concepts
• Keep track of objects in a multi-dimensional space
– Maps
– Geographical Information Systems (GIS)
– Weather
• In general spatial databases are n-dimensional
– This discussion is limited to 2-dimensional spatial databases
For more detail visit : https://techforboost.blogspot.com
https://youtu.be/OcQZVc7pZZA
A multimedia database is a database that include one or more primary media file types such as .txt (documents), .jpg (images), .swf (videos), .mp3 (audio), etc.
PHP provides access to a great number of different database systems, many of which are relational in nature and can be interrogated using Structured Query Language (SQL).
Spatial Database Concepts
• Keep track of objects in a multi-dimensional space
– Maps
– Geographical Information Systems (GIS)
– Weather
• In general spatial databases are n-dimensional
– This discussion is limited to 2-dimensional spatial databases
A presentation given at the Lucene Revolution 2012 conference to introduce the UCLA Communication Studies Archive.
Video: http://youtu.be/YnI7ftPcgJ4
Summary: UCLA Communication Studies Archive hosts a collection of over 100,000 hours of digital television news, updated daily. Its search Lucene Revolution 2012 Download Presentationengine provides closed captioning search and online streaming of videos. The search engine allows researchers and students in various fields to study television news, images and language usage, in ways that were not possible before. In this presentation, we will show the setup of our Lucene/Solr-powered search engine, as well as how it is being used. We will discuss our work on custom result formats, such as linking search result text to the video at particular timestamps, counting occurrences of words, phrases or patterns, grouping the result by fields such as month or show, and creating interactive charts. We will also discuss our work on extending Lucene’s proximity searches, and creating custom query types, such as segment-enclosed (two or more words, phrases or patterns occurring within a story-based text segment), time-enclosed (two or more words, phrases or patterns occurring within a certain time), and multi-word regular expression queries. Future goals will also be discussed, such as supporting multiple languages, multiple sources (speech-to-text along side closed-captioning text), searching user-contributed and generated metadata (programs that identify story segments, objects in video, etc.), and syntactic tags (such as parts of speech).
Chronix Time Series Database - The New Time Series Kid on the BlockQAware GmbH
Apache Big Data Conference 2016, Vancouver BC: Talk by Florian Lautenschlager (@flolaut, Senior Software Engineer).
Abstract: There is a new open source time series database on the block that allows one to store billions of time series points and access them within a few milliseconds.
Chronix is a young but mature open source time series database that catches a compression rate of 98% compared to data in CSV files while an average query took 21 milliseconds. Chronix is built on top of Apache Solr, a bulletproof NoSQL database with impressive search capabilities. Chronix relies on Solr plugins and everyone who has a Solr running can create a new Chronix core within a few minutes.
In this presentation Florian shows how Chronix achieves its efficiency in both by means of an ideal chunking, by selecting the best compression technique, by enhancing the stored data with pre-computed attributes, and by specialized time series query functions.
Information and network security 47 authentication applicationsVaibhav Khanna
Kerberos provides a centralized authentication server whose function is to authenticate users to servers and servers to users. In Kerberos Authentication server and database is used for client authentication. Kerberos runs as a third-party trusted server known as the Key Distribution Center (KDC).
Information and network security 46 digital signature algorithmVaibhav Khanna
The Digital Signature Algorithm (DSA) is a Federal Information Processing Standard for digital signatures, based on the mathematical concept of modular exponentiation and the discrete logarithm problem. DSA is a variant of the Schnorr and ElGamal signature schemes
Information and network security 45 digital signature standardVaibhav Khanna
The Digital Signature Standard is a Federal Information Processing Standard specifying a suite of algorithms that can be used to generate digital signatures established by the U.S. National Institute of Standards and Technology in 1994
Information and network security 44 direct digital signaturesVaibhav Khanna
The Direct Digital Signature is only include two parties one to send message and other one to receive it. According to direct digital signature both parties trust each other and knows there public key. The message are prone to get corrupted and the sender can declines about the message sent by him any time
Information and network security 43 digital signaturesVaibhav Khanna
Digital signatures are the public-key primitives of message authentication. In the physical world, it is common to use handwritten signatures on handwritten or typed messages. ... Digital signature is a cryptographic value that is calculated from the data and a secret key known only by the signer
Information and network security 42 security of message authentication codeVaibhav Khanna
Message Authentication Requirements
Disclosure: Release of message contents to any person or process not possess- ing the appropriate cryptographic key.
Traffic analysis: Discovery of the pattern of traffic between parties. ...
Masquerade: Insertion of messages into the network from a fraudulent source
Information and network security 41 message authentication codeVaibhav Khanna
In cryptography, a message authentication code, sometimes known as a tag, is a short piece of information used to authenticate a message—in other words, to confirm that the message came from the stated sender and has not been changed.
Information and network security 40 sha3 secure hash algorithmVaibhav Khanna
SHA-3 is the latest member of the Secure Hash Algorithm family of standards, released by NIST on August 5, 2015. Although part of the same series of standards, SHA-3 is internally different from the MD5-like structure of SHA-1 and SHA-2
Information and network security 39 secure hash algorithmVaibhav Khanna
The Secure Hash Algorithms are a family of cryptographic hash functions published by the National Institute of Standards and Technology as a U.S. Federal Information Processing Standard, including: SHA-0: A retronym applied to the original version of the 160-bit hash function published in 1993 under the name "SHA"
Information and network security 38 birthday attacks and security of hash fun...Vaibhav Khanna
Birthday attack can be used in communication abusage between two or more parties. ... The mathematics behind this problem led to a well-known cryptographic attack called the birthday attack, which uses this probabilistic model to reduce the complexity of cracking a hash function
Information and network security 35 the chinese remainder theoremVaibhav Khanna
In number theory, the Chinese remainder theorem states that if one knows the remainders of the Euclidean division of an integer n by several integers, then one can determine uniquely the remainder of the division of n by the product of these integers, under the condition that the divisors are pairwise coprime.
Information and network security 34 primalityVaibhav Khanna
A primality test is an algorithm for determining whether an input number is prime. Among other fields of mathematics, it is used for cryptography. Unlike integer factorization, primality tests do not generally give prime factors, only stating whether the input number is prime or not
Information and network security 33 rsa algorithmVaibhav Khanna
RSA algorithm is asymmetric cryptography algorithm. Asymmetric actually means that it works on two different keys i.e. Public Key and Private Key. As the name describes that the Public Key is given to everyone and Private key is kept private
Information and network security 32 principles of public key cryptosystemsVaibhav Khanna
Public-key cryptography, or asymmetric cryptography, is an encryption scheme that uses two mathematically related, but not identical, keys - a public key and a private key. Unlike symmetric key algorithms that rely on one key to both encrypt and decrypt, each key performs a unique function.
Information and network security 31 public key cryptographyVaibhav Khanna
Public-key cryptography, or asymmetric cryptography, is a cryptographic system that uses pairs of keys: public keys, and private keys. The generation of such key pairs depends on cryptographic algorithms which are based on mathematical problems termed one-way function
Information and network security 30 random numbersVaibhav Khanna
Random numbers are fundamental building blocks of cryptographic systems and as such, play a key role in each of these elements. Random numbers are used to inject unpredictable or non-deterministic data into cryptographic algorithms and protocols to make the resulting data streams unrepeatable and virtually unguessable
Information and network security 29 international data encryption algorithmVaibhav Khanna
International Data Encryption Algorithm (IDEA) is a once-proprietary free and open block cipher that was once intended to replace Data Encryption Standard (DES). IDEA has been and is optionally available for use with Pretty Good Privacy (PGP). IDEA has been succeeded by the IDEA NXT algorithm
Information and network security 28 blowfishVaibhav Khanna
Blowfish is a symmetric-key block cipher, designed in 1993 by Bruce Schneier and included in many cipher suites and encryption products. Blowfish provides a good encryption rate in software and no effective cryptanalysis of it has been found to date
Information and network security 27 triple desVaibhav Khanna
Part of what Triple DES does is to protect against brute force attacks. The original DES symmetric encryption algorithm specified the use of 56-bit keys -- not enough, by 1999, to protect against practical brute force attacks. Triple DES specifies the use of three distinct DES keys, for a total key length of 168 bits
Listen to the keynote address and hear about the latest developments from Rachana Ananthakrishnan and Ian Foster who review the updates to the Globus Platform and Service, and the relevance of Globus to the scientific community as an automation platform to accelerate scientific discovery.
Software Engineering, Software Consulting, Tech Lead.
Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Security,
Spring Transaction, Spring MVC,
Log4j, REST/SOAP WEB-SERVICES.
Experience our free, in-depth three-part Tendenci Platform Corporate Membership Management workshop series! In Session 1 on May 14th, 2024, we began with an Introduction and Setup, mastering the configuration of your Corporate Membership Module settings to establish membership types, applications, and more. Then, on May 16th, 2024, in Session 2, we focused on binding individual members to a Corporate Membership and Corporate Reps, teaching you how to add individual members and assign Corporate Representatives to manage dues, renewals, and associated members. Finally, on May 28th, 2024, in Session 3, we covered questions and concerns, addressing any queries or issues you may have.
For more Tendenci AMS events, check out www.tendenci.com/events
Large Language Models and the End of ProgrammingMatt Welsh
Talk by Matt Welsh at Craft Conference 2024 on the impact that Large Language Models will have on the future of software development. In this talk, I discuss the ways in which LLMs will impact the software industry, from replacing human software developers with AI, to replacing conventional software with models that perform reasoning, computation, and problem-solving.
SOCRadar Research Team: Latest Activities of IntelBrokerSOCRadar
The European Union Agency for Law Enforcement Cooperation (Europol) has suffered an alleged data breach after a notorious threat actor claimed to have exfiltrated data from its systems. Infamous data leaker IntelBroker posted on the even more infamous BreachForums hacking forum, saying that Europol suffered a data breach this month.
The alleged breach affected Europol agencies CCSE, EC3, Europol Platform for Experts, Law Enforcement Forum, and SIRIUS. Infiltration of these entities can disrupt ongoing investigations and compromise sensitive intelligence shared among international law enforcement agencies.
However, this is neither the first nor the last activity of IntekBroker. We have compiled for you what happened in the last few days. To track such hacker activities on dark web sources like hacker forums, private Telegram channels, and other hidden platforms where cyber threats often originate, you can check SOCRadar’s Dark Web News.
Stay Informed on Threat Actors’ Activity on the Dark Web with SOCRadar!
We describe the deployment and use of Globus Compute for remote computation. This content is aimed at researchers who wish to compute on remote resources using a unified programming interface, as well as system administrators who will deploy and operate Globus Compute services on their research computing infrastructure.
Advanced Flow Concepts Every Developer Should KnowPeter Caitens
Tim Combridge from Sensible Giraffe and Salesforce Ben presents some important tips that all developers should know when dealing with Flows in Salesforce.
Understanding Globus Data Transfers with NetSageGlobus
NetSage is an open privacy-aware network measurement, analysis, and visualization service designed to help end-users visualize and reason about large data transfers. NetSage traditionally has used a combination of passive measurements, including SNMP and flow data, as well as active measurements, mainly perfSONAR, to provide longitudinal network performance data visualization. It has been deployed by dozens of networks world wide, and is supported domestically by the Engagement and Performance Operations Center (EPOC), NSF #2328479. We have recently expanded the NetSage data sources to include logs for Globus data transfers, following the same privacy-preserving approach as for Flow data. Using the logs for the Texas Advanced Computing Center (TACC) as an example, this talk will walk through several different example use cases that NetSage can answer, including: Who is using Globus to share data with my institution, and what kind of performance are they able to achieve? How many transfers has Globus supported for us? Which sites are we sharing the most data with, and how is that changing over time? How is my site using Globus to move data internally, and what kind of performance do we see for those transfers? What percentage of data transfers at my institution used Globus, and how did the overall data transfer performance compare to the Globus users?
Cyaniclab : Software Development Agency Portfolio.pdfCyanic lab
CyanicLab, an offshore custom software development company based in Sweden,India, Finland, is your go-to partner for startup development and innovative web design solutions. Our expert team specializes in crafting cutting-edge software tailored to meet the unique needs of startups and established enterprises alike. From conceptualization to execution, we offer comprehensive services including web and mobile app development, UI/UX design, and ongoing software maintenance. Ready to elevate your business? Contact CyanicLab today and let us propel your vision to success with our top-notch IT solutions.
Unleash Unlimited Potential with One-Time Purchase
BoxLang is more than just a language; it's a community. By choosing a Visionary License, you're not just investing in your success, you're actively contributing to the ongoing development and support of BoxLang.
In 2015, I used to write extensions for Joomla, WordPress, phpBB3, etc and I ...Juraj Vysvader
In 2015, I used to write extensions for Joomla, WordPress, phpBB3, etc and I didn't get rich from it but it did have 63K downloads (powered possible tens of thousands of websites).
How Recreation Management Software Can Streamline Your Operations.pptxwottaspaceseo
Recreation management software streamlines operations by automating key tasks such as scheduling, registration, and payment processing, reducing manual workload and errors. It provides centralized management of facilities, classes, and events, ensuring efficient resource allocation and facility usage. The software offers user-friendly online portals for easy access to bookings and program information, enhancing customer experience. Real-time reporting and data analytics deliver insights into attendance and preferences, aiding in strategic decision-making. Additionally, effective communication tools keep participants and staff informed with timely updates. Overall, recreation management software enhances efficiency, improves service delivery, and boosts customer satisfaction.
OpenFOAM solver for Helmholtz equation, helmholtzFoam / helmholtzBubbleFoamtakuyayamamoto1800
In this slide, we show the simulation example and the way to compile this solver.
In this solver, the Helmholtz equation can be solved by helmholtzFoam. Also, the Helmholtz equation with uniformly dispersed bubbles can be simulated by helmholtzBubbleFoam.
Modern design is crucial in today's digital environment, and this is especially true for SharePoint intranets. The design of these digital hubs is critical to user engagement and productivity enhancement. They are the cornerstone of internal collaboration and interaction within enterprises.
In software engineering, the right architecture is essential for robust, scalable platforms. Wix has undergone a pivotal shift from event sourcing to a CRUD-based model for its microservices. This talk will chart the course of this pivotal journey.
Event sourcing, which records state changes as immutable events, provided robust auditing and "time travel" debugging for Wix Stores' microservices. Despite its benefits, the complexity it introduced in state management slowed development. Wix responded by adopting a simpler, unified CRUD model. This talk will explore the challenges of event sourcing and the advantages of Wix's new "CRUD on steroids" approach, which streamlines API integration and domain event management while preserving data integrity and system resilience.
Participants will gain valuable insights into Wix's strategies for ensuring atomicity in database updates and event production, as well as caching, materialization, and performance optimization techniques within a distributed system.
Join us to discover how Wix has mastered the art of balancing simplicity and extensibility, and learn how the re-adoption of the modest CRUD has turbocharged their development velocity, resilience, and scalability in a high-growth environment.
Into the Box Keynote Day 2: Unveiling amazing updates and announcements for modern CFML developers! Get ready for exciting releases and updates on Ortus tools and products. Stay tuned for cutting-edge innovations designed to boost your productivity.
top nidhi software solution freedownloadvrstrong314
This presentation emphasizes the importance of data security and legal compliance for Nidhi companies in India. It highlights how online Nidhi software solutions, like Vector Nidhi Software, offer advanced features tailored to these needs. Key aspects include encryption, access controls, and audit trails to ensure data security. The software complies with regulatory guidelines from the MCA and RBI and adheres to Nidhi Rules, 2014. With customizable, user-friendly interfaces and real-time features, these Nidhi software solutions enhance efficiency, support growth, and provide exceptional member services. The presentation concludes with contact information for further inquiries.
Multiple Your Crypto Portfolio with the Innovative Features of Advanced Crypt...Hivelance Technology
Cryptocurrency trading bots are computer programs designed to automate buying, selling, and managing cryptocurrency transactions. These bots utilize advanced algorithms and machine learning techniques to analyze market data, identify trading opportunities, and execute trades on behalf of their users. By automating the decision-making process, crypto trading bots can react to market changes faster than human traders
Hivelance, a leading provider of cryptocurrency trading bot development services, stands out as the premier choice for crypto traders and developers. Hivelance boasts a team of seasoned cryptocurrency experts and software engineers who deeply understand the crypto market and the latest trends in automated trading, Hivelance leverages the latest technologies and tools in the industry, including advanced AI and machine learning algorithms, to create highly efficient and adaptable crypto trading bots
Multiple Your Crypto Portfolio with the Innovative Features of Advanced Crypt...
Adbms 44 temporal and multimedia databases
1. Advance Database Management Systems :44
Temporal and Multi Media databases
Prof Neeraj Bhargava
Vaibhav Khanna
Department of Computer Science
School of Engineering and Systems Sciences
Maharshi Dayanand Saraswati University Ajmer
2. Slide 24- 2
Temporal Database Concepts
Time Representation, Calendars, and Time Dimensions
• Time is considered ordered sequence of points in some
granularity
– Use the term choronon instead of point to describe minimum
granularity
3. Slide 24- 3
Temporal Database Concepts
Time Representation, … (contd.)
• A calendar organizes time into different time
units for convenience.
– Accommodates various calendars
• Gregorian (western)
• Chinese
• Islamic
• Hindu
• Jewish
• Etc.
4. Slide 24- 4
Temporal Database Concepts
Time Representation, … (contd.)
• Point events
– Single time point event
• E.g., bank deposit
– Series of point events can form a time series data
• Duration events
– Associated with specific time period
• Time period is represented by start time and end time
5. Slide 24- 5
Temporal Database Concepts
Time Representation, … (contd.)
• Transaction time
– The time when the information from a certain
transaction becomes valid
• Bitemporal database
– Databases dealing with two time dimensions
6. Slide 24- 6
Temporal Database Concepts
Incorporating Time in Relational Databases
Using Tuple Versioning
• Add to every tuple
– Valid start time
– Valid end time
9. Slide 24- 9
Temporal Database Concepts
Incorporating Time in Object-Oriented
Databases Using Attribute Versioning
• A single complex object stores all temporal
changes of the object
• Time varying attribute
– An attribute that changes over time
• E.g., age
• Non-Time varying attribute
– An attribute that does not changes over time
• E.g., date of birth
12. Slide 24- 12
Spatial Databases
Spatial Database Concepts
• Keep track of objects in a multi-dimensional
space
– Maps
– Geographical Information Systems (GIS)
– Weather
• In general spatial databases are n-dimensional
– This discussion is limited to 2-dimensional spatial
databases
13. Slide 24- 13
Spatial Databases
Spatial Database Concepts
• Typical Spatial Queries
– Range query: Finds objects of a particular type within a
particular distance from a given location
• E.g., Taco Bells in Pleasanton, CA
– Nearest Neighbor query: Finds objects of a particular type that
is nearest to a given location
• E.g., Nearest Taco Bell from an address in Pleasanton, CA
– Spatial joins or overlays: Joins objects of two types based on
some spatial condition (intersecting, overlapping, within certain
distance, etc.)
• E.g., All Taco Bells within 2 miles from I-680.
14. Slide 24- 14
Spatial Databases
Spatial Database Concepts
• R-trees
– Technique for typical spatial queries
– Group objects close in spatial proximity on the
same leaf nodes of a tree structured index
– Internal nodes define areas (rectangles) that cover
all areas of the rectangles in its subtree.
• Quad trees
– Divide subspaces into equally sized areas
15. Slide 24- 15
Multimedia Databases
Multimedia Database Concepts
• In the years ahead multimedia information
systems are expected to dominate our daily lives.
– Our houses will be wired for bandwidth to handle
interactive multimedia applications.
– Our high-definition TV/computer workstations will
have access to a large number of databases, including
digital libraries, image and video databases that will
distribute vast amounts of multisource multimedia
content.
16. Slide 24- 16
Multimedia Databases
• Types of multimedia data are available in
current systems
– Text: May be formatted or unformatted. For ease
of parsing structured documents, standards like
SGML and variations such as HTML are being
used.
– Graphics: Examples include drawings and
illustrations that are encoded using some
descriptive standards (e.g. CGM, PICT, postscript).
17. Slide 24- 17
Multimedia Databases
• Types of multimedia data are available in
current systems (contd.)
– Images: Includes drawings, photographs, and so
forth, encoded in standard formats such as
bitmap, JPEG, and MPEG. Compression is built into
JPEG and MPEG.
• These images are not subdivided into components.
Hence querying them by content (e.g., find all images
containing circles) is nontrivial.
– Animations: Temporal sequences of image or
graphic data.
18. Slide 24- 18
Multimedia Databases
• Types of multimedia data are available in
current systems (contd.)
– Video: A set of temporally sequenced
photographic data for presentation at specified
rates– for example, 30 frames per second.
– Structured audio: A sequence of audio
components comprising note, tone, duration, and
so forth.
19. Slide 24- 19
Multimedia Databases
• Types of multimedia data are available in
current systems (contd.)
– Audio: Sample data generated from aural
recordings in a string of bits in digitized form.
Analog recordings are typically converted into
digital form before storage.
20. Slide 24- 20
Multimedia Databases
• Types of multimedia data are available in
current systems (contd.)
– Composite or mixed multimedia data: A
combination of multimedia data types such as
audio and video which may be physically mixed to
yield a new storage format or logically mixed while
retaining original types and formats. Composite
data also contains additional control information
describing how the information should be
rendered.
21. Slide 24- 21
Multimedia Databases
• Nature of Multimedia Applications:
– Multimedia data may be stored, delivered, and
utilized in many different ways.
– Applications may be categorized based on their
data management characteristics.
