Weak slot and filler structures are knowledge representation structures that organize objects into classes with attributes and values. They allow for property inheritance along "isa" and "instance" links. Semantic nets represent information as nodes connected by labeled arcs, where nodes are objects/attribute values and arcs are relationships. Frames represent entities as collections of slots (attributes) and associated values (fillers). Frames, semantic nets, and slot-filler structures allow knowledge to be organized and property inheritance to be performed, supporting reasoning.
This document discusses weak slot-and-filler knowledge representation structures. It describes how they organize objects into classes with attributes and values to support property inheritance. Semantic nets are provided as an example, where nodes represent objects/attribute values and arcs represent relationships. Frames are also discussed as a type of weak slot-and-filler structure that group attributes into slots and associated values. The document notes how slot-and-filler structures allow for monotonic and non-monotonic reasoning. It also covers issues like tangled hierarchies and resolving conflicts through inferential distance in property inheritance.
This document discusses weak slot-and-filler knowledge representation structures. It describes how slots represent attributes and fillers represent values. Semantic networks are provided as an example where nodes represent objects/values and links represent relationships. Property inheritance allows subclasses to inherit attributes from more general superclasses. Frames are also discussed as a type of weak structure where each frame contains slots and associated values describing an entity. The document notes challenges with tangled hierarchies and provides examples of how to resolve conflicts through inferential distance in the property inheritance algorithm.
Slot and filler structures represent knowledge through attributes (slots) and their associated values (fillers). Weak slot and filler structures provide little domain knowledge. Frames are a type of weak structure where a frame contains slots describing an entity. Semantic networks also represent knowledge with nodes and labeled links, allowing inheritance of properties through generalization hierarchies. Both frames and semantic networks enable quick retrieval of attribute values and easy description of object relations, but semantic networks additionally allow representation of non-binary predicates and partitioned reasoning about quantified statements.
Weak Slot and Filler Structures
Representation in a Semantic Net
Frames can also be regarded as an extension to Semantic nets. Indeed it is not clear where the distinction between a semantic net and a frame ends. Semantic nets initially we used to represent labelled connections between objects. As tasks became more complex the representation needs to be more structured. The more structured the system it becomes more beneficial to use frames. A frame is a collection of attributes or slots and associated values that describe some real world entity. Frames on their own are not particularly helpful but frame systems are a powerful way of encoding information to support reasoning. Set theory provides a good basis for understanding frame systems. Each frame represents:
a class (set), or
an instance (an element of a class).
Frame Knowledge Representation
We have already met this type of structure when discussing inheritance in the last lecture. We will now study this in more detail.
Database Design and Normalization TechniquesNishant Munjal
The document discusses database normalization and its goals. It defines various normalization forms including first, second, third normal forms and Boyce-Codd normal form. It explains concepts like functional dependencies, transitive dependencies and multi-valued dependencies. Examples are given to illustrate anomalies like update, deletion and insertion anomalies that can occur without normalization. The benefits of normalization in removing redundancy and ensuring data integrity are also highlighted.
Weak Slot and Filler Structure (by Mintoo Jakhmola LPU)Mintoo Jakhmola
Weak slot and filler structures allow for quick retrieval of attribute values, easy description of relation properties, and embrace aspects of object-oriented programming. A slot is an attribute-value pair, and a filler is a value that a slot can take. Semantic nets represent concepts as nodes and relationships as labeled arcs, and the meaning of a concept comes from its relations to other concepts. Frames represent real-world entities as collections of attributes and values through a hierarchical class structure.
The document describes semantic networks and how they can be used to represent knowledge. A semantic network consists of nodes representing concepts connected by labeled arcs representing relations. Common relations include ISA to represent subsets, INSTANCE for examples of concepts, and HASPART for parts. Inheritance allows concepts to inherit properties from supersets following ISA links. Frames are similar but represent concepts as slots and values that can use demons to compute values. Semantic networks and frames allow knowledge to be represented naturally with inheritance but have limitations for other relations.
Frames are data structures that represent conceptual entities and the relationships between them. A frame consists of slots that describe attributes, with values that can be other frames. For example, a "Person" frame may have slots for "name", "gender", etc. Frames allow complex, hierarchical knowledge to be modeled. They can be used to represent things in the real world as well as abstract concepts.
This document discusses weak slot-and-filler knowledge representation structures. It describes how they organize objects into classes with attributes and values to support property inheritance. Semantic nets are provided as an example, where nodes represent objects/attribute values and arcs represent relationships. Frames are also discussed as a type of weak slot-and-filler structure that group attributes into slots and associated values. The document notes how slot-and-filler structures allow for monotonic and non-monotonic reasoning. It also covers issues like tangled hierarchies and resolving conflicts through inferential distance in property inheritance.
This document discusses weak slot-and-filler knowledge representation structures. It describes how slots represent attributes and fillers represent values. Semantic networks are provided as an example where nodes represent objects/values and links represent relationships. Property inheritance allows subclasses to inherit attributes from more general superclasses. Frames are also discussed as a type of weak structure where each frame contains slots and associated values describing an entity. The document notes challenges with tangled hierarchies and provides examples of how to resolve conflicts through inferential distance in the property inheritance algorithm.
Slot and filler structures represent knowledge through attributes (slots) and their associated values (fillers). Weak slot and filler structures provide little domain knowledge. Frames are a type of weak structure where a frame contains slots describing an entity. Semantic networks also represent knowledge with nodes and labeled links, allowing inheritance of properties through generalization hierarchies. Both frames and semantic networks enable quick retrieval of attribute values and easy description of object relations, but semantic networks additionally allow representation of non-binary predicates and partitioned reasoning about quantified statements.
Weak Slot and Filler Structures
Representation in a Semantic Net
Frames can also be regarded as an extension to Semantic nets. Indeed it is not clear where the distinction between a semantic net and a frame ends. Semantic nets initially we used to represent labelled connections between objects. As tasks became more complex the representation needs to be more structured. The more structured the system it becomes more beneficial to use frames. A frame is a collection of attributes or slots and associated values that describe some real world entity. Frames on their own are not particularly helpful but frame systems are a powerful way of encoding information to support reasoning. Set theory provides a good basis for understanding frame systems. Each frame represents:
a class (set), or
an instance (an element of a class).
Frame Knowledge Representation
We have already met this type of structure when discussing inheritance in the last lecture. We will now study this in more detail.
Database Design and Normalization TechniquesNishant Munjal
The document discusses database normalization and its goals. It defines various normalization forms including first, second, third normal forms and Boyce-Codd normal form. It explains concepts like functional dependencies, transitive dependencies and multi-valued dependencies. Examples are given to illustrate anomalies like update, deletion and insertion anomalies that can occur without normalization. The benefits of normalization in removing redundancy and ensuring data integrity are also highlighted.
Weak Slot and Filler Structure (by Mintoo Jakhmola LPU)Mintoo Jakhmola
Weak slot and filler structures allow for quick retrieval of attribute values, easy description of relation properties, and embrace aspects of object-oriented programming. A slot is an attribute-value pair, and a filler is a value that a slot can take. Semantic nets represent concepts as nodes and relationships as labeled arcs, and the meaning of a concept comes from its relations to other concepts. Frames represent real-world entities as collections of attributes and values through a hierarchical class structure.
The document describes semantic networks and how they can be used to represent knowledge. A semantic network consists of nodes representing concepts connected by labeled arcs representing relations. Common relations include ISA to represent subsets, INSTANCE for examples of concepts, and HASPART for parts. Inheritance allows concepts to inherit properties from supersets following ISA links. Frames are similar but represent concepts as slots and values that can use demons to compute values. Semantic networks and frames allow knowledge to be represented naturally with inheritance but have limitations for other relations.
Frames are data structures that represent conceptual entities and the relationships between them. A frame consists of slots that describe attributes, with values that can be other frames. For example, a "Person" frame may have slots for "name", "gender", etc. Frames allow complex, hierarchical knowledge to be modeled. They can be used to represent things in the real world as well as abstract concepts.
- Ethernet was first created by Robert Metcalfe and standardized by IEEE as 802.3. It uses Manchester encoding and CSMA/CD.
- Fast Ethernet (802.3u) was developed to transmit data 10 times faster than standard Ethernet at 100 Mbps, while still being backward compatible.
- Gigabit Ethernet (802.3z) further increased the data rate to 1000 Mbps and supports both full-duplex and half-duplex modes using switches and hubs.
Transmission control protocol ...............................SwatiHans10
The document discusses the Transmission Control Protocol (TCP) which operates at the transport layer of the OSI model. TCP provides reliable, connection-oriented data transmission through the use of sequence numbers, acknowledgments, and retransmissions to ensure packets are delivered correctly. It establishes connections using a 3-way handshake and closes connections through a 4-way handshake. TCP uses port numbers to identify applications at each end of the connection and implements flow and congestion control to regulate data transfer rates.
Linear search is a sequential search algorithm that checks each element of an array until the target element is found. It has a worst-case time complexity of O(n) where n is the number of elements. Binary search is a divide and conquer algorithm that compares the target to the middle element of a sorted array, eliminating half of the remaining elements with each comparison. It has a time complexity of O(log n). Common sorting algorithms like bubble sort, insertion sort, and selection sort have a time complexity of O(n^2) as they may require up to n^2 comparisons in the worst case.
Analytics platforms like Google Analytics provide quantitative user data across devices and platforms by tracking metrics like sessions and bounce rates in reports to understand website usage. Google Analytics also collects event-based data from websites and apps to analyze user behavior, and integrates with other Google tools to combine all marketing data in a single location.
The document discusses Key Performance Indicators (KPIs), which are quantifiable measures used to evaluate factors that are crucial to the success of an organization. KPIs help measure performance against goals. The document outlines what makes a good KPI, such as being business-aligned, actionable, realistic and measurable. It also discusses how to develop KPIs using the SMART framework and provides examples of KPIs for different business functions like IT, marketing, customer service, sales and finance.
The document discusses various strategies and tools for collecting data in evaluations. It describes both quantitative and qualitative approaches, and notes that the best approach depends on factors like the information needed, resources available, and complexity of the data. It provides guidelines for collecting data and discusses the advantages and challenges of various tools, including surveys, interviews, focus groups, observation, diaries, expert judgment, and more. The goal is to choose appropriate and multiple methods to ensure accurate and comprehensive data collection.
The document describes various heuristic search techniques including best first search, A* search, and an example of applying A* search to find the lowest cost path between initial and goal nodes in a graph. Key points:
- A* search uses both path cost (g(n)) and heuristic estimate of distance to goal (h(n)) to calculate the total cost (f(n)) of expanding each node.
- It maintains OPEN and CLOSED lists to track explored and unexplored nodes. The lowest f(n) node in OPEN is selected for expansion at each step.
- Expansion may cause nodes already in CLOSED to be moved back to OPEN if a lower cost path to that node is
The document discusses issues in knowledge representation and predicate logic. It covers important attributes like "instance" and "isa" that support property inheritance. It also discusses the relationship between attributes, choosing an appropriate level of granularity, and finding the right knowledge structure. The key knowledge representation methods covered are logic, production rules, semantic nets, and frames. Predicate logic represents facts, objects, and relations using variables, predicates, functions, and quantifiers to make inferences. Horn clauses represent rules using predicates and quantifiers.
This document discusses multiplexing and spreading techniques. It describes multiplexing as a set of techniques that allows simultaneous transmission of multiple signals over a single data link to maximize bandwidth utilization. Frequency-division multiplexing (FDM), wavelength-division multiplexing (WDM), and time-division multiplexing (TDM) are discussed as categories of multiplexing. Spread spectrum is described as combining signals from different sources to prevent eavesdropping and jamming through redundancy. Frequency hopping spread spectrum (FHSS) and direct sequence spread spectrum synchronous (DSSS) are introduced as spread spectrum techniques. Examples of applying these concepts are provided through diagrams and calculations.
The document discusses the entity-relationship (E-R) model for conceptual database design. It describes how a database can be modeled as a collection of entities and relationships between entities. Entity sets contain entities of the same type, and relationship sets define associations among entity sets. The document outlines key E-R modeling concepts such as attributes, keys, cardinalities, participation constraints, and weak entities. It also discusses how to represent an E-R design using an E-R diagram.
Cloud computing can be applied in several domains:
1) Large organizations like NASA and CERN are using private clouds to provide resources to thousands of researchers globally in a cost-effective manner. NASA's Nebula cloud allows scientists to run climate models remotely.
2) Cloud platforms can be mashed up to provide both scalability and agility. For example, a mashup combines Google App Engine for web services and Amazon EC2 for parallel computing.
3) Cloud computing supports the Internet of Things by providing resources for processing and analyzing data from billions of connected devices.
This document discusses various 3D transformations including translation, rotation, scaling, reflection, and shearing. It provides the transformation matrices for each type of 3D transformation. It also discusses combining multiple transformations through composite transformations by multiplying the matrices in sequence from right to left.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
- Ethernet was first created by Robert Metcalfe and standardized by IEEE as 802.3. It uses Manchester encoding and CSMA/CD.
- Fast Ethernet (802.3u) was developed to transmit data 10 times faster than standard Ethernet at 100 Mbps, while still being backward compatible.
- Gigabit Ethernet (802.3z) further increased the data rate to 1000 Mbps and supports both full-duplex and half-duplex modes using switches and hubs.
Transmission control protocol ...............................SwatiHans10
The document discusses the Transmission Control Protocol (TCP) which operates at the transport layer of the OSI model. TCP provides reliable, connection-oriented data transmission through the use of sequence numbers, acknowledgments, and retransmissions to ensure packets are delivered correctly. It establishes connections using a 3-way handshake and closes connections through a 4-way handshake. TCP uses port numbers to identify applications at each end of the connection and implements flow and congestion control to regulate data transfer rates.
Linear search is a sequential search algorithm that checks each element of an array until the target element is found. It has a worst-case time complexity of O(n) where n is the number of elements. Binary search is a divide and conquer algorithm that compares the target to the middle element of a sorted array, eliminating half of the remaining elements with each comparison. It has a time complexity of O(log n). Common sorting algorithms like bubble sort, insertion sort, and selection sort have a time complexity of O(n^2) as they may require up to n^2 comparisons in the worst case.
Analytics platforms like Google Analytics provide quantitative user data across devices and platforms by tracking metrics like sessions and bounce rates in reports to understand website usage. Google Analytics also collects event-based data from websites and apps to analyze user behavior, and integrates with other Google tools to combine all marketing data in a single location.
The document discusses Key Performance Indicators (KPIs), which are quantifiable measures used to evaluate factors that are crucial to the success of an organization. KPIs help measure performance against goals. The document outlines what makes a good KPI, such as being business-aligned, actionable, realistic and measurable. It also discusses how to develop KPIs using the SMART framework and provides examples of KPIs for different business functions like IT, marketing, customer service, sales and finance.
The document discusses various strategies and tools for collecting data in evaluations. It describes both quantitative and qualitative approaches, and notes that the best approach depends on factors like the information needed, resources available, and complexity of the data. It provides guidelines for collecting data and discusses the advantages and challenges of various tools, including surveys, interviews, focus groups, observation, diaries, expert judgment, and more. The goal is to choose appropriate and multiple methods to ensure accurate and comprehensive data collection.
The document describes various heuristic search techniques including best first search, A* search, and an example of applying A* search to find the lowest cost path between initial and goal nodes in a graph. Key points:
- A* search uses both path cost (g(n)) and heuristic estimate of distance to goal (h(n)) to calculate the total cost (f(n)) of expanding each node.
- It maintains OPEN and CLOSED lists to track explored and unexplored nodes. The lowest f(n) node in OPEN is selected for expansion at each step.
- Expansion may cause nodes already in CLOSED to be moved back to OPEN if a lower cost path to that node is
The document discusses issues in knowledge representation and predicate logic. It covers important attributes like "instance" and "isa" that support property inheritance. It also discusses the relationship between attributes, choosing an appropriate level of granularity, and finding the right knowledge structure. The key knowledge representation methods covered are logic, production rules, semantic nets, and frames. Predicate logic represents facts, objects, and relations using variables, predicates, functions, and quantifiers to make inferences. Horn clauses represent rules using predicates and quantifiers.
This document discusses multiplexing and spreading techniques. It describes multiplexing as a set of techniques that allows simultaneous transmission of multiple signals over a single data link to maximize bandwidth utilization. Frequency-division multiplexing (FDM), wavelength-division multiplexing (WDM), and time-division multiplexing (TDM) are discussed as categories of multiplexing. Spread spectrum is described as combining signals from different sources to prevent eavesdropping and jamming through redundancy. Frequency hopping spread spectrum (FHSS) and direct sequence spread spectrum synchronous (DSSS) are introduced as spread spectrum techniques. Examples of applying these concepts are provided through diagrams and calculations.
The document discusses the entity-relationship (E-R) model for conceptual database design. It describes how a database can be modeled as a collection of entities and relationships between entities. Entity sets contain entities of the same type, and relationship sets define associations among entity sets. The document outlines key E-R modeling concepts such as attributes, keys, cardinalities, participation constraints, and weak entities. It also discusses how to represent an E-R design using an E-R diagram.
Cloud computing can be applied in several domains:
1) Large organizations like NASA and CERN are using private clouds to provide resources to thousands of researchers globally in a cost-effective manner. NASA's Nebula cloud allows scientists to run climate models remotely.
2) Cloud platforms can be mashed up to provide both scalability and agility. For example, a mashup combines Google App Engine for web services and Amazon EC2 for parallel computing.
3) Cloud computing supports the Internet of Things by providing resources for processing and analyzing data from billions of connected devices.
This document discusses various 3D transformations including translation, rotation, scaling, reflection, and shearing. It provides the transformation matrices for each type of 3D transformation. It also discusses combining multiple transformations through composite transformations by multiplying the matrices in sequence from right to left.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMSIJNSA Journal
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
2. Inheritable knowledge
• The relational knowledge base determines a set of
attributes and associated values that together
describe the objects of knowledge base.
E.g. Player_info(“john”,”6.1”,180,right_throws)
• The knowledge about the objects, their attributes and
their values need not be as simple as shown.
• One of the most powerful form of inference
mechanisms is property inheritance.
Player Height Weight Bats_throws
John 6.1 180 Right_throws
Sam 5.10 170 right_right
Jack 6.2 215 Bats_throws
3. • Property Inheritance
• Here elements of specific classes inherit attributes
and values from more general classes in which
they are included.
• In order to support property inheritance objects
must be organized into classes and classes must be
arranged in generalization hierarchy.
4. and boxed nodes== object/values of attriibutesof an objjectt..
person(Owen) instance(Owen, Person)
team(Owen, Liverpool)
Here,
Lines ==attributes
This structure is also called as slot and filler structure. These structures are the
devices to support property inheritance along isa and instance links.
Mammal
P
P
e
e
r
r
s
s
o
o
n
n
Owen
Nose
Red Liverpool
isa
instance
h
h
a
a
s
s
-
-
p
p
a
a
r
r
t
t
uniform
colour team
5. • Advantage of slot and filler structures:
1. monotonic reasoning can be performed more
effectively than with pure logic and non monotonic
reasoning is easily supported.
2. Makes it easy to describe properties of relations.
e.g. “does Owen has-part called nose?”
3. Form of object oriented programming and has
advantages such as modularity and ease of viewing
by people.
6. Slot and filler structures
Weak slot and filler structure Strong slot and filler structure
Frames
Semantic nets Scripts
Conceptual Dependency
Weak slot and filler structures: are “Knowledge- Poor” or
“weak” as very little importance is given to the specific
knowledge the structure should contain.
Attribute= slot and its value= filler
7. Semantic nets
• In semantic nets information is represented as:
– set of nodes connected to each other by a set of
labelled arcs.
• Nodes represent: various objects / values of the
attributes of object .
• Arcs represent: relationships among nodes.
Mammal
Person
Jack
Nose
Blue Chicago Royals
isa
instance
has-part
uniform
color team
8. • In this network we could use inheritance to derive
the additional info:
has_part(jack, nose)
Intersection Search
One way to find relationships among objects is to spread
the activation(links) out from two nodes and find out
where it meets
Ex: relation between :
Red and liverpool
Mammal
Person
Owen
Nose
Red Liverpool
isa
instance
has-part
uniform
color team
9. • Representing non binary predicates:
1. Unary –
e.x. Man(marcus) can be converted into:
instance(marcus,Man)
2. Other arities-
e.x. Score(india,australia,4-1)
3 or more place predicates can be converted to binary
form as follows:
1. Create new object representing the entire
predicate.
2. Introduce binary predicates to describe relation to
this new object.
11. Ex. 2. “john gave the book to Mary”
give(john,mary,book)
EV 1
instance
Give
John
Mary
Book
BK1
instance
Object
agent
beneficiary
12. Making some important distinctions
1. “john has height 72”
2. “john is taller than Bill”
John 72
height
John Bill
H1 H2
height height
Value
72
greater_than
13. Partitioned semantic nets
• Used to represent quantified expressions in
semantic nets.
• One way to do this is to partition the semantic net
into a hierarchical set of spaces each of which
corresponds to the scope of one or more variable.
• “the dog bit the mail carrier” [partitioning not required]
d
Dogs
b
Bite
m
Mail-Carrier
isa isa isa
assailant victim
14. • “every dog has bitten a mail carrier”
x: dog (x) y: mail-carrier(y) bite(x, y)
• How to represent universal quantifiers?
– Let node ‘g’ stands for assertion given above
– This node is an instance of a special class ‘GS’ of
general statements about the world.
– Every element in ‘GS’ has 2 attributes:-
• Form - states relation that is being asserted.
• connections - one or more, one for each of the universally
quantified variables.
– ‘SA’ is the space of partitioned sementic net.
15. • “every dog has bitten a mail carrier”
SA
S1
d
Dogs
b
Bite
m
Mail-Carrier
isa isa isa
assailant victim
g
GS
isa
form
16. • “Every dog in the town has bitten the constable”
SA
m
Constables
isa
S1
d
Dogs
b
Bite
isa isa
assailant
g
GS
isa
form
victim
17. • “Every dog in the town has bitten every constable”
SA
Constables
S1
d
Dogs
b
Bite
isa isa
assailant
g
GS
isa
form
victim
c
isa
18. • More examples of sementic nets:
• “ Mary gave the green flowered vase to her
favourite cousin”
EV 1
instance
Give
Mary
cousin
vase
Object
agent
beneficiary
Colour_pattern
Green
flowered
favourite
19. • “every batsman hits a ball”
SA
S1
b
Batsman Hits
b
Balls
isa isa isa
action Acts_on
g
GS
isa
form
h
20. • “Tweety is a kind of bird who can fly. It is Yellow
in colour and has wings.”
Bird
Tweety
Wings
instance
has-part
yellow
fly
colour
action
21. • Represent following using sementic nets:-
Tom is a cat. Tom caught a bird. Tom is owned by John. Tom is
ginger in color. Cats like cream.The cat sat on the mat. Acat is
a mammal. Abird is an animal. All mammals are
animals.mammals have fur.
22. Frames
• Another kind of week slot and filler structure.
• Frame is a collection of attributes called as slots
and associated values that describe some entity in
the world (filler).
• Consider,
Room
Hotel room
isa
Hotel bed
contains
Hotel Chair
contains
Location
Chair
Sitting_on
4
20-40 cms
isa
use
legs
height
Room No 2
instance
23. Hotel Room
isa : Room
contains: Hotel Bed
contains: Hotel Chair
Hotel Chair
isa: Chair
use: sitting_on
location: Hotel Room
. . . . . . . . . .
. . . . . . . . . .
. . . . . . . . . .
Frame System for Hotel Room
Frame structure for Hotel Room
Frame structure for Hotel Chair
Frame structure for all remaining
attributes
24. Person Jack_Roberts
instance: Fielder
height: 5-10
balls: right
batting_avg: 0.309
team: Chicagocubs
uniform_color: blue
Fielder
isa: ML_Baseball_Player
cardinality: 376
batting_avg: 0.262
ML_Baseball_Team
isa:T
eam
cardinality: 26
team_size: 24
manager:
isa: Mammal
cardinality: 6,000,000,000
* Handed: right
Adult Male
isa: Person
Cardinality: 2,000,000,000
* Height: 5- 10
ML_Baseball_Player
isa:Adult_Male
cardinality: 624
* height: 6-1
* bats: equal tohanded
* batting-avg: 0.252
* team:
*uniform_color:
Individual
frame
25. • Meta Class: special class whose elements themselves are classes.
– If X is meta class and Y is another class which is an element of X, then Y inherits
all the attributes of X.
• Other ways of relating classes to each other
1. Mutually disjoint: 2 classes are mutually disjoint if they are
guaranteed to have no elements in common.
2. Is covered by: relationship is called as ‘covered-by’ when we have
a class and it has set of subclasses, the union of which is equal to the
superclass.
ML_Baseball_Player
isa
Fielder Pitcher
isa
Catcher
isa
American
Leaguer
isa
National
Leaguer
isa
Jack
instance
instance
27. Tangled Hierarchies
• Hierarchies that are not trees
• Usually hierarchy is an arbitrary directed acyclic
graph.
• Tangled hierarchies requires new property
inheritance algorithm.
28. •
FIGURE A
• Can fifi fly?
• The correct answer must be ‘no’.
– Although birds in general can fly, the subset of birds , ostriches does not.
– Although class pet bird provides path from fifi to bird and thus to the answer that fifi
can fly, it provides no info that conflicts with the special case knowledge associated with
class ostrich, so it should hove no effect on the answer.
isa
isa
isa
isa
Ostrich
fly :no
fifi
fly : ?
Bird
fly :yes
Pet-Bird