# Basic Graph Algorithms Stanford University-Books Pdf

06 Apr 2020 | 16 views | 0 downloads | 38 Pages | 304.01 KB

Share Pdf : Basic Graph Algorithms Stanford University

Report CopyRight/DMCA Form For : Basic Graph Algorithms Stanford University

## Transcription

Adjacency Matrix and Adjacency List,Special Graphs. Depth First and Breadth First Search,Topological Sort. Eulerian Circuit,Minimum Spanning Tree MST,Strongly Connected Components SCC. An abstract way of representing connectivity using nodes also. called vertices and edges,We will label the nodes from 1 to n. m edges connect some pairs of nodes, Edges can be either one directional directed or bidirectional.
Nodes and edges can have some auxiliary information. Why Study Graphs, Lots of problems formulated and solved in terms of graphs. Shortest path problems,Network flow problems,Matching problems. 2 SAT problem,Graph coloring problem,Traveling Salesman Problem TSP still unsolved. and many more,Adjacency Matrix and Adjacency List,Special Graphs. Depth First and Breadth First Search,Topological Sort.
Eulerian Circuit,Minimum Spanning Tree MST,Strongly Connected Components SCC. Adjacency Matrix and Adjacency List 5,Storing Graphs. Need to store both the set of nodes V and the set of edges E. Nodes can be stored in an array,Edges must be stored in some other way. Want to support operations such as, Retrieving all edges incident to a particular node. Testing if given two nodes are directly connected, Use either adjacency matrix or adjacency list to store the.
Adjacency Matrix and Adjacency List 6,Adjacency Matrix. An easy way to store connectivity information, Checking if two nodes are directly connected O 1 time. Make an n n matrix A,aij 1 if there is an edge from i to j. aij 0 otherwise,Uses n2 memory,Only use when n is less than a few thousands. and when the graph is dense,Adjacency Matrix and Adjacency List 7.
Adjacency List,Each node has a list of outgoing edges from it. Easy to iterate over edges incident to a certain node. The lists have variable lengths,Space usage n m,Adjacency Matrix and Adjacency List 8. Implementing Adjacency List,Solution 1 Using linked lists. Too much memory time overhead,Using dynamic allocated memory or pointers is bad. Solution 2 Using an array of vectors,Easier to code no bad memory issues.
But very slow,Solution 3 Using arrays,Assuming the total number of edges is known. Very fast and memory efficient,Adjacency Matrix and Adjacency List 9. Implementation Using Arrays,Adjacency Matrix and Adjacency List 10. Implementation Using Arrays,Have two arrays E of size m and LE of size n. E contains the edges, LE contains the starting pointers of the edge lists.
Initialize LE i 1 for all i,LE i 0 is also fine if the arrays are 1 indexed. Inserting a new edge from u to v with ID k,E k nextID LE u. Adjacency Matrix and Adjacency List 11,Implementation Using Arrays. Iterating over all edges starting at u,for ID LE u ID 1 ID E ID nextID. E ID is an edge starting from u,Once built it s hard to modify the edges.
The graph better be static,But adding more edges is easy. Adjacency Matrix and Adjacency List 12,Adjacency Matrix and Adjacency List. Special Graphs,Depth First and Breadth First Search. Topological Sort,Eulerian Circuit,Minimum Spanning Tree MST. Strongly Connected Components SCC,Special Graphs 13.
A connected acyclic graph,Most important type of special graphs. Many problems are easier to solve on trees,Alternate equivalent definitions. A connected graph with n 1 edges,An acyclic graph with n 1 edges. There is exactly one path between every pair of nodes. An acyclic graph but adding any edge results in a cycle. A connected graph but removing any edge disconnects it. Special Graphs 14,Other Special Graphs, Directed Acyclic Graph DAG the name says what it is. Equivalent to a partial ordering of nodes, Bipartite Graph Nodes can be separated into two groups S.
and T such that edges exist between S and T only no edges.

## Related Books

###### ONLY COPY PREVIEW

Tile shower floor with 50mm x 50mm beige colour mosaic tiles. Tile shall be laid to have fall towards outlet. Top of tiles shall be level with the top of outlet trap grid. Use tile adhesive for mosaic tiles. Grout colour to match. Mix grout with product like Tylon bond it, to make grout water proof

###### Update on the management of laryngospasm

Laryngospasm is defined as the sustained closure of the vocal cords. It is a primitive protective airway reflex, which happens to safeguard the integrity of the airway by protecting it from tracheobronchial aspiration.1 Laryngospasm is also defined as an exaggerated response of the closure reflex or glottic muscle spasm. Essentially is a protective

###### AIRWAY MANAGEMENT PRES 2015

ON ARRIVAL TO THE PACU, THE PATIENT IS ATTACHED TO MONITORING AND O2, ... NURSING MANAGEMENT: Suction airway, recover in lateral position, high ?ow O2, contact anaesthetic team, organise chest Xray, antibiotics. ATELECTASIS CAUSES:General anaesthetic, opioids, sedatives, abdo& thoracic pain can decrease inspiratory pause and can lead to alveolar collapse (atelectasis) SIGNS: Pain on ...

###### New York State Nurse Aide Manual

NEW YORK STATE NURSING HOME NURSE AIDE EXAMINATION 1 Rev. 20150522 Introduction The New York State Department of Health ( NYSDOH) has contracted with Prometric to develop and administer the New York State (NYS) Nursing Home Nurse Aide Competency Examination and manage the NYS Nursing Home Nurse Aide Registry (NAR).

###### PERANCANGAN MEDIA PEMBELAJARAN UNTUK MELESTARIKAN BAHASA ...

memiliki budaya maupun bahasa yang berbeda.Salah satunya adalah bahasa jawa krama yang merupakan salah satu peninggalan budaya yang tak ternilai harganya dan patut untuk dilestarikan.Dalam penggunaannya, bahasa Jawa memiliki aksara sendiri, yaitu aksara jawa, dialek yang berbeda dari tiap daerah, serta unggah-ungguh basa (etika berbahasa Jawa) yang berbeda.Bahasa Jawa dibagi menjadi tiga ...

###### ROHM LDO Finder User's Guide : Power Management

ROHM LDO Finder User's Guide ... ROHM LDO Finder is an online tool that allow circuit designers searching for an IC of Linear regulator to easily find a uitable Linear regulator. ROHM LDO Finder can compare "IOUT vs. VOUT" graph (means OCP) and minimum dropout voltage (means Vdrop) to up to six products simultaneously. In addition, it implements simple calculation to display Junction ...

###### SUKUK TABUNGAN SERI ST-005

deposito. E. Pencairan Sebelum Jatuh Tempo (Early Redemtion) 17. Apakah Sukuk Tabungan dapat dicairkan lebih cepat sebelum jatuh tempo? Apabila investor memerlukan dana lebih cepat, dapat memanfaatkan fasilitas early redemption. Early redemption merupakan salah satu fasilitas yang memungkinkan

###### St. Mary, Mother of God Church

Facebook: Saint Mary, Mother of God - Freeport Send Information to share: ... Holy Communion: Extraordinary Ministers of Holy Communion are available to bring the Eucharist to the sick and homebound. If you know of someone, please call the Administrative Office at 724-295-2281. Baptism: To understand the importance of the Sacrament of Baptism and your obligation as parents, you are required to ...

###### Cambodia Garment Industry Workforce Assessment

Cambodia Garment Industry Workforce Assessment Identifying Skill Needs and Sources of Supply DISCLAIMER The views expressed in this publication do not necessarily reflect the views of the United States Agency for International Development or the United States Government. This assessment has been prepared by the Cambodia Garment Industry Productivity Center, known as GIPC. The GIPC project ...

###### Ronald W. Langacker

Ronald W. Langacker University of California, San Diego, USA A ... A basic principle of Cognitive Grammar (CG) is that these aspects of linguistic organization cannot be properly understood in isolation from one another. In its original formulation and continued development (Langacker 1987, 1991, 2000, 2001a, 2008, 2010a), it thus envisages a unified account of structure, processing, and ...