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5.1.13 Paper Title: A Scalable Content Addressable Network 1. Problems: The paper claims that centralized peer-to-peer systems are vulnerable due to their very structure of single point control. The authors present a hash table based distributed system which they claim would be useful for not just P2P systems. They mention that the uniqueness of CAN lies in its routing algorithm used for lookup operations. The CAN system is introduced first and some additions to improve the performance are mentioned later. 2. New Ideas and Strengths: Strengths: [a] Certain core implementation details of the system such as the Access Model, CAN routing and construction are clearly explained. [b] The use of zones (nodes which maintain part of the hash table) makes the system scalable and provides a higher fault tolerance. [c] Fault Tolerance Routing: Checking for a nodes availability before forwarding requests, though may not give the optimal path, will still allow data to be available. [d] Load Balancing: In case of a node's failure, assigning the failed zone node's to the smallest neighboring zone is the appropriate way to maintain the balance in the system. 3. Weaknesses and Extensions [a] Routing Mechanism: Though the CAN routing mechanism is explained in simple words, there is not enough clarity on how it is unique or better than other DHT implementations. [b] Finding a zone: The use of a random point in the coordinate space for a new node may not be the most optimal solution. Selecting a point on the basis of the new node's and systems properties may have shown better results. [c] Path latency improvement: The solution proposed to improve path latency, by maintaining multiple realities and then picking the most appropriate one, may not always be scalable and could introduce a large overhead in case of constantly changing P2P systems. [d] The experiments would have been better understood if the setup was explained in some more detail. The results presented should have been compared to existing DHT implementations to better understand the strengths of the CAN implementation.
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Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 17 Title: Improving Search in Peer-to-Peer Networks (1) Problems It becomes very common and popular to share large number of data or files information on peer-to-peer systems. However, just like the functionality of Web search, it is necess...
Georgia Tech >> CS >> 8803 (Fall, 2008)
[1.1] SE: Paper# 16 Week 7 Title: Crawling towards Eternity: Building an Archive of the World Wide Web Mike Burner Problems Addressed: 1. A current issue is archiving all digital history and making it available forever. This particular problem can...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Title:Mercator: A Scalable, Extensible Web Crawler Motivation:- There are many good web crawlers used in the industry. But no company discloses the design of the crawler they use. Building a web crawler that is scalable is a very complex task a...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Making Gnutella like P2P systems scalable Motivation:- Gnutella has a simple structure but is not very scalable. Gnutella has a decentralized query system, which leads to a linear increase in the load on a node, with each new query sent to it. ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Phenix: Supporting Resilient Low-Diameter Peer-to-Peer Topologies GT ID # 902400134 Problems: P2P networks are of two types: structured and unstructured. The structured P2P networks enforce predetermined connections and offer good performance in res...
Georgia Tech >> CS >> 8803 (Fall, 2008)
PAPER CRITIQUE Paper: 1 Title: Crawling towards Eternity Name: Aditya Devurkar Mail: adityad@gatech.edu Problems: Brewster Kahle is tackling a very interesting problem, to make the information on the web citable. I find his task to be very importan...
Georgia Tech >> CS >> 8803 (Fall, 2008)
CS8803 Course Reading Summaries Family Name: Misra Given Name: Samantha Paper #: 23 Title: Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design Problems: The paper focuses on the quantitativ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #:14 Title: The Connectivity Server: fast access to linkage information on the Web. (1) Problems This paper takes a different approach at retrieved resutls from the content index database of search engines. This view is more in line with a sus...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 1.36 Paper title: Mining the link structure of the world wide web This paper presents algorithms which are based upon the link structure of the web instead of using just the content of the web pages. The authors state that the highly variab...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 5.1.21 Paper title: Apoidea:A decentralized peer to peer architecture for crawling the world wide web This paper presents a peer to peer crawler and tries to overcome the disadvantages of centralised crawlers. One of the main deficiencies o...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Given Name: Neha Family Name: Deodhar Paper#: 23 from section 5.1 Title: Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design (1) Problems i) In spite of the advances in the P2P field, there...
Georgia Tech >> CS >> 8803 (Fall, 2008)
CS8803-AIA Course Reading Summaries Paper #: 1.1 series Title: Trawling the web for emerging cyber-communities (1) Problems addressed [high level summary] * Understanding and locating communities on the web which are not part of explicit servic...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #:[1.1 SE]: 19 Title: Focused crawling: a new approach to topic-specific Web resource discovery (1) Problems = * Problem Area: = The web is growing at such a rate that tracking the changes to it, is a computational challenge in itself. ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #:[5.1 P2P]: 7 Title: Freenet: A Distributed Anonymous Information Storage and Retrieval System (1) Problems = * Problem Area: = Peer to peer networks are always seen as a resource saving network systems. Typically providing means to pool...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Source: Tracing a large-scale Peer to Peer System: an hour in the life of Gnutella by Evangelos P. Markatos Idea: -In this paper, the writers have studied the traffic patterns of the Gnutell peer to peer system. After studying the query/reply patte...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 1: 11 Title: WebGlimpse - Combining Browsing and Searching (1) Problems Conventional systems treat searching and browsing as two separate entities. As a result whenever the user wants to browse something related to one topic, he ends up...
Washington University in St. Louis >> WU >> 128 (Fall, 2009)
Warm-up Problems - January 26, 2006 1. The demand function for a certain brand product is x units and the corresponding price of the product is p = 225 - 5x Determine the consumers\' surplus if the wholesale market price is set at $10 per unit. Lect...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Reading Summery1: Week 7 ?Summery 2 Section 5.1: Peer to Peer Paper #23: Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design (1) Problems: This paper implements a system to analyze the top...
Georgia Tech >> CS >> 8803 (Fall, 2008)
CS 8803: AIAD Week [7] Reading Summaries Family Name: Rajan Given Name: Chirag Paper # [1.1] 19 Title: Focused crawling: a new approach to topic-specific Web resource discovery (1) Problems: This paper proposes an entirely new approach to crawling, ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
CS 8803: AIAD Week [7] Reading Summaries Family Name: Rajan Given Name: Chirag Paper # [5.1] 22 Title: Tracing a large-scale Peer to Peer System: an hour in the life of Gnutella (1) Problems: The paper addresses a number of existing problems with ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 14 Title: The connectivity server: Fast access to information on the web 1. PROBLEM: The World Wide Web is a vast pool of information organized in the form of hyper links from a page to several other pages and so on. Hence, there is a need...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 23 Title: Mapping the Gnutella Network: Properties of large scale p2p systems and implication for system design. 1. PROBLEM: Second generation p2p systems like Gnutella are gaining importance because of their robust and fault tolerant natu...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper # : 5.1 :21 Title :Apoidea: A Decentralized Peer-to-Peer Architecture for Crawling the World Wide Web Problems: 1. Most web crawlers have a client server base architechture which is a centralized system. 2. However these systems suffer from...
Washington University in St. Louis >> WU >> 128 (Fall, 2009)
Warm-up Problems - January 26, 2006 Solutions 1. The demand function for a certain brand product is x units and the corresponding price of the product is p = 225 - 5x Determine the consumers\' surplus if the wholesale market price is set at $10 per u...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper # 5.1.21 Ttile: Apoidea: A Decentralized Peer-to-Peer Architecture for Crawling the World Wide Web Problems Addressed The paper points out issues with current crawlers and proposes to solve hem by using ideas of p2p c_omputing. The problems...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper # Sec 1.1 #14 Titile : The Anatomy of a Large-Scale Hypertextual Web Search Engine [I] Problems Addressed 1.The authors present a paper which leads the foundation of the most successful company today, Google. 2.They address problems like sc...
Georgia Tech >> CS >> 8803 (Fall, 2008)
CS8803D Course Reading Summaries Family Name: Kozikowski Given Name: Piotr Paper #: 7.1 Title: Mercator: A scalable, extensible Web crawler (1) Problems Web crawlers are very important components of many web services. Given the already incredibly...
Georgia Tech >> CS >> 8803 (Fall, 2008)
CS8803D Course Reading Summaries Family Name: Kozikowski Given Name: Piotr Paper #: 7.2 Title: Phenix: Supporting Resilient Low-Diameter Peer-to-Peer Topologies (1) Problems Traditional peer-to-peer networks have been a success, and part of the r...
Washington University in St. Louis >> WU >> 128 (Fall, 2009)
Warm-up Problems - January 19, 2006 1. Let D(x) = -0.001x2 + 250 (a) Solve for x in D(x) = 210 (b) Find S(200). (c) Solve D(x) = S(x) 2. D(x) = 144 - x2 Solve D(x) = S(x) 1 S(x) = 48 + x2 2 S(x) = 0.0006x2 + .02x + 100 Lecture Problems 3. Supply and...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #:2.1.11 Title: WebGlimpse - Combining Browsing and Searching (1) Problems Although search and browsing are the most popular techniques for information on the web, both have limitations which make them not so much the best way to gain this in...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #:5.1.23 Title: Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design (1) Problems A growth in the use of P2P systems was observed due to low cost, large number of resources and...
Washington University in St. Louis >> WU >> 128 (Fall, 2009)
Warm-up Problems - January 19, 2006 Solutions 1. Let D(x) = 0.001x2 + 250 (a) Solve for x in D(x) = 210 Solution: x = 200 (b) Find S(200). Solution: S(200) = 128 (c) Solve D(x) = S(x) Solution: 0.001x2 + 250 =0.0006x2 + .02x + 100 0.0016x2 + 0.02x 1...
Georgia Tech >> CS >> 8803 (Fall, 2008)
THE ANATOMY OF LARGE-SCALE HYPERTEXTUAL WEB SEARCH ENGINE Problem Definition: The information at web is growing at exponential rate and there should be a system to effectively retrieve information from this huge resource of information. The human...
Georgia Tech >> CS >> 8803 (Fall, 2008)
MAKING GNUTELLA-LIKE P2P SYSTEMS SCALABLE Problem Definition: Napster popularized the P2P networks for establishing connections and downloading the desired contents. It was based on centralized search algorithms as a result of which it e...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Name: Swagath Kannan Paper # [1]1. Google, The Anatomy of a Large-scale Hypertextual Web Search Engine. The paper discusses the design goals to be kept in mind and the technical challenges that could be faced in building a large scale web search e...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Last Name : Kannan First Name : Swagath Paper# [5.1] 15 - Making Gnutellalike P2P Systems Scalable Problem Statement - The author broadly deals with the probem of poor scalability in P2P networks like Gnutella. It analyses the Gnutella\'s design and...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: [1.1 SE] 16 Title: Crawling towards Eternity: Building an Archive of the World Wide Web 1. Problems The scale of Internet is increasing rapidly. If we can record the Internet into a digital archive, it will be a research tool available fore...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: [5.1 P2P] 16 Title: Phenix: Supporting Resilient Low-Diameter Peer-to-Peer Topologies 1. Problems On one hand, though unstructured networks provide high resilience against network dynamics, node failures and malicious behaviors, they are l...
Georgia Tech >> CS >> 8803 (Fall, 2008)
<?xml version=\"1.0\" encoding=\"UTF-8\"?> <Error><Code>NoSuchKey</Code><Message>The specified key does not exist.</Message><Key>e7d214a581968b173938b97e12edc969d9528993.txt</Key><RequestId>417ED161E0FDFA56</RequestId><HostId>VdbCZ1P4coiygO0UPLALeSH4iAYH...
Georgia Tech >> CS >> 8803 (Fall, 2008)
CS8803D Course Reading Summaries Family Name: Chawla Given Name: Pankaj Paper #: 11 Title: WebGlimpse Combining Browsing and Searching (1) Problems The problem is that the two paradigms of searching and browsing are currently treated separately ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 1 Title: Flash: The Anatomy of a Large-scale Hypertextual Web Search Engine (1) Problems Information retrieval has been heavily studied even before the occurrence of search engine. In 1990\'s, the search engines including both commercial SE...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Family Name: Cachet Given Name: Grgoire Paper #: [1.1 SE] 16 Title: Crawling towards Eternity: Building an Archive of the World Wide Web This article presents archive.org, a project aiming at keeping a backup of the web history. The basic idea is to...
Georgia Tech >> CS >> 8803 (Fall, 2008)
NAME: SAURIN KADAKIA GT ID: 902404980 PAPER: 16 CRAWLING TOWARDS ETERNITY This article introduces the reader to the concept of Internet Archival and the work being done by Brewster Kahle and his team in this regard. The vision was to provide the wo...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper# 2 Title: Making Gnutella like P2P Systems Scalable. In this paper the authors propopse and test modifications to Gnutella protocol to make it more scalable and adaptive to overlay network. (1) Problems: To overcome the legal issues in centr...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Phenix: Supporting Resilient Low-Diameter Peer-to-Peer Topologies Problem Statement - -> Neither structured P2P networks such as Chord and unstructured P2P networks such as Gnutella can simulatenously offer both performance and resilience. -> Phenix...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 1.1.12 Title: \"Mercator: A Scalable, Extensible Web Crawler\" by Allan Heydon and Marc Najork Name: Gaurav Mullick GTID: 902385139 This paper discusses Mercator which is a scalable web crawler. Mercator, as is any web crawler for that matter...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 5.1.23 Title: Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design Problems: Peer-to-peer (P2P) applications are extremely popular for file sharing, data storage, video and audio st...
Georgia Tech >> CS >> 8803 (Fall, 2008)
WebGlimpse : Combining Browsing and Searching Udi Manber et al. The authors describe what could effectively be regarded as an augmented form of user interaction with a collection of web-documents etc. which is achieved in the presented case through...
Washington University in St. Louis >> WU >> 128 (Fall, 2009)
Warm-up Problems - January 19, 2006 1. Use the substitutions given and integrate: (a) Substitute u = 2x - 1 1 dx 2x - 1 (b) Substitute u = 2x2 - 1 x dx 2x2 - 1 (c) Substitute u = 2x3 - 1 x2 dx 2x3 - 1 (d) Substitute u = 2x4 - 1 x3 dx 2x4 - 1 ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design Matei Ripeanu Ian Foster Adriana Iamnitchi The paper presents an anal...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 5.1 #21 Title:\"Apoidea - A Decentralized Peer-to-Peer Architecture for Crawling the World Wide Web\" 1.Problems Most of the current crawling systems implements a centralized client-server model : the crawl is done by several tightly couple...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Title : Crawling towards Eternity: Building An Archive of The World Wide Web Problems This article seeks to addresses a very nice problem - that of archiving the internet. Archiving the internet can be very useful to use as a research tool and tim...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper : Tracing a large-scale Peer to Peer System: an hour in the life of Gnutella This paper makes an important study of the traffic patterns of a p2p system (Gnutella) and by careful analysis it reveals that the majority of the traffic is due to a ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Family Name: Kharadi Given Name: Ankit Paper # [5.1 P2P] 23 Title: Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design (1) Problems: - With the extensive growth of peer to peer appl...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: 36 Title: Mining the Link Structure of the World Wide Web (a). Problem Statement Due to the high volume of information in the world wide web, we need to locate the resource precisely, i.e., to find the web page that relates our query as c...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper#:16 - Title: Crawling towards Eternity: Building An Archive of The World Wide Web - Problems - This article talks about creating an archive of the World Wide Web and the issues involved. The Internet Archive maintains all publicly accessib...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper#:22 - Title: Tracing a large-scale Peer to Peer System: an hour in the life of Gnutella - Problems: - The paper talks about the problems associated with peer to peer systems and measures that can be taken to improve their performance. Some...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #15/5.1 Title: Making Gnutella-like P2P Systems Scalable. -Y. Chawathe, S. Ratnasamy, L. Breslau, N. Lanham, and S. Shenker (1) Problems - The paper proposes comprehensive solutions to the problems of scalabilty inherent to a p2...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper# : 16 Title : Crawling towards Eternity Problem: As technology advances, the root principle of technologies disappears. The stories that led to their invention begin to fade out. Man becomes oblivious of the history that led to his own civili...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper#: 23 Title: Mapping the gnutella network Problem: With the advent of large scale P2P systems, the internet is swamped with related traffic. The topology of such P2P systems like Gnutella and its characteristics may have interesting implicat...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: [1.1 SE]: 12 Title: Mercator: A Scalable, Extensible Web Crawler (1) Problems Web crawlers are an important component of many web services, but their design is not well-documented in the literature Collection of statistics about web usag...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #: [5.1 P2P] 15 Title: Making Gnutella-like P2P Systems Scalable (1) Problems Gnutella uses a decentralized search algorithms, but its poor scaling led some to propose distributed hash table solutions to the wide-area file search problem. T...
Georgia Tech >> CS >> 8803 (Fall, 2008)
File Name: 6866_1 Subject line: [8803AIA] Week-7 Mailto: mcdoo@cc.gatech.edu and pesti@cc.gatech.edu CS8803 Weekly Reading Summary GT Id No.: _6866 [1.1 SE]: Paper No. 16 - Crawling Towards Eternity: Building an Archive of the World Wide Web. Mi...
Georgia Tech >> CS >> 8803 (Fall, 2008)
File Name: 6866_2 Subject line: [8803AIA] Week-7 Mailto: mcdoo@cc.gatech.edu and pesti@cc.gatech.edu CS8803 Weekly Reading Summary GT Id No.: _6866 [5.1 P2P]: Paper No. 23 - Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Sys...
Washington University in St. Louis >> WU >> 128 (Fall, 2009)
Warm-up Problems - January 19, 2006 Solutions 1. Use the substitutions given and integrate: (a) Substitute u = 2x - 1 1 dx = 2x - 1 1 du = u + C = 2x - 1 + C 2 u (b) Substitute u = 2x2 - 1 x dx = 2x2 - 1 1 2 1 1 du = u+C = 2x - 1 + C 2 2 4 u ...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Name: Priyanka Last Name: Prabhu Paper #: 1.1 SE 11. WebGlimpse - Combining Browsing and Searching Problems: 1. Search is hard without clarity of the query to be formed to get the relevant information. Browsing is time consuming and may result in th...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Name:Priyanka Last Name: Prabhu Paper:5.1. 23 .P2P Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design Problems: 1. Depict that Gnutella network is less dependant on a few hosts, but st...
Georgia Tech >> CS >> 8803 (Fall, 2008)
CS 8803 Reading Write-up 2 Week 7 Paper #: 21 Title: Apoidea: A Decentralized Peer-to-Peer Architecture for Crawling the World Wide Web (1) Problems Web crawling that depends on a centralized server for partitioning the work load and aggregating r...
Georgia Tech >> CS >> 8803 (Fall, 2008)
Paper #:[1.1 SE]- 39 Title : The web as a graph: Measurements, models and methods The paper presents two algorithms HITS and Trawling to improve web search techniques using link analysis with the help of web-graphs. Both the algorithms are query dep...
Washington University in St. Louis >> WU >> 128 (Fall, 2009)
Warm-up Problems - January 17, 2006 Solutions 1. Compute the following integrals: (a) 1 e-3x dx = 0 1 - e-3 3 (b) 6 3 3 dt = 6 ln 2 t-2 (c) 5 (5 - 3t)4 dt = 3 32992 5 Lecture Problems 2. Find the area between the curves (a) Between x2 - 2x + ...
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