600 Words3 Pages

Graphs - Traversals
Traversal of Graphs
Depth First Traversals (or search) – DFS
Traversal performed using stack.
Similar to preorder sort of Trees
Process all Vertex’s descendants
Start with first vertex – process it (mark as processed)
Identify an adjacent vertex and process it (mark as processed)
Repeat C until a vertex is reached which has no unmarked adjacent vertices
Trace back in graph and process another vertex as in ( c)
Repeat until all vertices are processed
DFS Applications Finding connected components. Topological sorting. Finding 2-(edge or vertex)-connected components. Finding 3-(edge or vertex)-connected components. Finding the bridges of a graph. Generating words in order to plot the Limit Set of a*…show more content…*

Least distance for travel – How do you calculate? - Sum of distances of lines for each path. Could also be cost based or travel time based. Dijkstra’s Algorithm Helps calculate shortest path between two nodes in a Graph Assign Infinity distance value to all nodes (except starting) and mark all nodes as unvisited and create a set of the unvisited nodes For starting node, consider all unvisited neighboring nodes and calculate distance from starting node. If the distance assigned is Zero or non-zero value greater than calculated value, assign the calculated value. Else keep the assigned value When all unvisited neighbors of the current node are considered, mark the current node as Visited and remove from unvisited Set. If the destination node is marked as “visited” or if there are no nodes in the unvisited set with non-infinity value, the algorithm is finished. If the destination node is marked as visited, the distance value of the node is the smallest distance from source. Else there is no connection between source and destination. Identify the unvisited node with the smallest distance value and repeat from 3 Dijkstra’s Algorithm Shortest distance from Hyderabad to Vijayawada (not to scale)

Least distance for travel – How do you calculate? - Sum of distances of lines for each path. Could also be cost based or travel time based. Dijkstra’s Algorithm Helps calculate shortest path between two nodes in a Graph Assign Infinity distance value to all nodes (except starting) and mark all nodes as unvisited and create a set of the unvisited nodes For starting node, consider all unvisited neighboring nodes and calculate distance from starting node. If the distance assigned is Zero or non-zero value greater than calculated value, assign the calculated value. Else keep the assigned value When all unvisited neighbors of the current node are considered, mark the current node as Visited and remove from unvisited Set. If the destination node is marked as “visited” or if there are no nodes in the unvisited set with non-infinity value, the algorithm is finished. If the destination node is marked as visited, the distance value of the node is the smallest distance from source. Else there is no connection between source and destination. Identify the unvisited node with the smallest distance value and repeat from 3 Dijkstra’s Algorithm Shortest distance from Hyderabad to Vijayawada (not to scale)

Related

## A Necessary Condition For The Storage Of Information

2080 Words | 9 PagesA necessary condition for the storage of information in the computer 's memory is the ability to transform this very information in the appropriate form for your computer. In the event that this condition is satisfied, it is necessary to determine the structure, it is suitable for information is present, one that will provide a set of capabilities required to work with it. Here, the structure refers to the way the information by which the aggregate of individual elements form a unity, due to their

## Relational Database And Relational Databases

3150 Words | 13 PagesIntroduction 3.1.1 Graph Databases A graph database represents data and relationships between this data using concepts from graph data structures like nodes, edges and properties. Nodes represents the data entities, properties represent information about the nodes and edges which connect two nodes or a node and a property represent the relationship between the connected elements. [1] Figure 3.1 Property Graph Model [2] 3.1.2 Triple stores Triple store is a specific implementation of a graph database that

## Survey On Graph Databases : Graph Database

3635 Words | 15 PagesSurvey on graph databases XIAOTONG FU Informatics, University of Edinburgh Abstract. Graph databases, also called graph-oriented database, is a type of not only SQL (NoSQL) database based on graph theory that can store, map and query data relationships. Because this kind of database ensures its robust performance in processing graph-like data, it has been widely used in industry, for instance, Facebook and Twitter are using graph databases to store and analyze their user proles. This paper re- viewed

## Robert Sedgewick 's Passion Is Computers Technology

1929 Words | 8 Pagesand abstract data types are included in this elementary slot. ( 2, 3, 4, 5,6, 7) Robert’s defined abstract data type as “the algorithms operations that are preformed rather than implemented the data structure and algorithms operating on it should refer to anything inside, except through function and procedure calls for the fundamental operations. The main reason for the development of abstract data types has been as a mechanism for organizing large programs. Abstract data types provide a way to

## Defining New Languages For Querying Rdf Data

1314 Words | 6 PagesIII. RELATED WORKS In work [4] querying at the syntactic level the RDF model can be written down in XML notation. It would therefore seem reasonable to assume that query RDF using an XML query language. However, this approach disregards the fact that RDF is not just an XML dialect, but has its own data model that is very different from the XML tree structure. However, most approaches define new languages for querying RDF data, which has the following shortcomings: Languages are difficult to

## A Study Of Nosql Implementation Techniques

3502 Words | 15 Pagesdata. There are four main types of NoSQL databases. The simplest NoSQL databases

## Csvtu Syllabus Computer Science

4095 Words | 17 PagesAutomorphism, Homomorphism, Codes & group codes, Rings, Integral domains and Fields. UNIT – 4 GRAPH THEORY (No. of periods 8+2) Introduction to graph theory, Walks, Paths & Circuits, Types of graphs, Shortest path problems, Eulerian and Hamiltonian graphs, Basic concept of tree: spanning tree, minimum spanning tree, search tree, rooted binary tree, Cut sets, Network flow, Matrix representation of graphs. UNIT – 5 COMBINATORICS (No. of periods 8+2) Permutation and combination, Pigeon-hole principle

## A Comparative Analysis Of Force Directed Layout Algorithms For Biological Networks

1825 Words | 8 Pagesnetworks. The analysis will consider topics such as the algorithm process, amount of preprocessing, complexity, and flexibility of the algorithms for different types and sizes of data. K-Means, SPICi, Markov Clustering, RNSC, and PBD will be used for the comparison. I will identify the best algorithm according to my analysis for each type of input data studied. Background: how to determine if a clustering algorithm is good/if a cluster is good→ modularity Proteins control all processes within

## Cs / 6310 Assignment 1 Assignment Two Design Patterns

1771 Words | 8 Pagesdesign pattern provides a mechanism for executing different operations on nodes in a data structure, determined by node type or class. The advantage of this pattern is that the operations don’t have to be known to the nodes, and the node classes are not coupled to the operations. The Visitor class contains the different versions of a given operation for all of the node types and an arbitrary number

## Role Of Data Mining On E Commerce

3020 Words | 13 PagesNATIONAL LAW INSTITUTE UNIVERSITY, BHOPAL In collaboration with RAJIV GANDHI PROUDYOGIKI VISHWAVIDYALAYA Master of Science In Cyber Law & Information Security Semester – III Session: 2014-15 Security Architecture and Models (Paper - I) Role of Data Mining in E-Commerce Submitted to: Mr. Atul Kumar Pandey Asst. Professor Submitted by: Rehan Umar Khan 2013MSCLIS20 Abstract: In India E-commerce has emerged as one of the fastest growing industry in past few years. We are witnessing its exponential

### A Necessary Condition For The Storage Of Information

2080 Words | 9 Pages### Relational Database And Relational Databases

3150 Words | 13 Pages### Survey On Graph Databases : Graph Database

3635 Words | 15 Pages### Robert Sedgewick 's Passion Is Computers Technology

1929 Words | 8 Pages### Defining New Languages For Querying Rdf Data

1314 Words | 6 Pages### A Study Of Nosql Implementation Techniques

3502 Words | 15 Pages### Csvtu Syllabus Computer Science

4095 Words | 17 Pages### A Comparative Analysis Of Force Directed Layout Algorithms For Biological Networks

1825 Words | 8 Pages### Cs / 6310 Assignment 1 Assignment Two Design Patterns

1771 Words | 8 Pages### Role Of Data Mining On E Commerce

3020 Words | 13 Pages

- A Copula-Based EDA For a Class of Continuous Multiobjective Problems
- I love traveling, who doesn’t like that by the way? I’ve already been to 7 destinations in the span
- Most of the leaders are running ethical companies, but there are some of businesses running
- Forensic Science Technician: I would like to be a Forensic Science Technician, simply because I
- Department of Chemistry [Colligative Properties & Osmotic
- Soft curls of smoke lifted from the ash covered ground as Stg. Jones roughly grabbed the strap to