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Search found 8 results on 1 pages for 'g ullman'.

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• What is the relation between database books by Ullman et al.?

  - by macias

  A First Course in Database Systems by Jeffrey D. Ullman, Jennifer Widom (Amazon links) Database System Implementation by Hector Garcia-Molina, Jeffrey D. Ullman, Jennifer D. Widom Database Systems: The Complete Book by Hector Garcia-Molina, Jeffrey D. Ullman, Jennifer Widom As far as I know the second one is the second "part" of the first one. But what about the third one -- is it just first+second published in one volume? I would like to buy them, but I don't want to get redundant reading. Thank you in advance for clarification.

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• Manipulating Directory Paths in Python

  - by G Ullman

  Basically I've got this current url and this other key that I want to merge into a new url, but there are three different cases. Suppose the current url is localhost:32401/A/B/foo if key is bar then I want to return localhost:32401/A/B/bar if key starts with a slash and is /A/bar then I want to return localhost:32401/A/bar finally if key is its own independent url then I just want to return that key = htt p://foo.com/bar - http://foo.com/bar I assume there is a way to do at least the first two cases without manipulating the strings manually, but nothing jumped out at me immediately in the os.path module.

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• Merge Twitter Outh and Facebook Connect Friends

  - by G Ullman

  Basically what I want to do is download all a users facebook and twitter friends and somehow find a way to figure out which entries represent the same person. I know it's possible because a lot of social search sites like spokeo achieve what I want and more, so does anyone know how they go about doing it or the best way to go about it? I have a basic idea of the facebook and twitter api calls I need to be making however feel free to add any advice or warnings there as well. I know facebook hashes the emails which seems like it could pose a problem. Any help is greatly appreciated.

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• Algorithms for subgraph isomorphism detection

  - by Jack

  This a NP Complete problem. More info can be found here http://en.wikipedia.org/wiki/Subgraph_isomorphism_problem The most widely used algorithm is the one proposed by Ullman. Can someone please explain the algorithm to me. I read a paper by him and couldn't understand much. Also what other algorithms for this problem. I am working on an image processing project.

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• yiic webapp problem

  - by bgreen1989

  hi, i'm still new to yii framework. so, i want to try running yiic so that i could see the structure of the files created. but, i could not run it in console. Does anyone have a solution? thanks. I'm using wamp on win xp. i go to the directory of the yiic framework its in D:\wamp\www\framework\ and run yiic and any other variations per Larry Ullman's blog. but still got: "..." is not a recognizable internal/ external command... How should i be able to run yiic? thanks.

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• How to write a Compiler in C for C

  - by Kerb_z

  I want to write a Compiler for C. This is a Project for my College i am doing as per my University. I am an intermediate programmer in C, with understanding of Data Structures. Now i know a Compiler has the following parts: 1. Lexer 2. Parser 3. Intermediate Code Generator 4. Optimizer 5. Code Generator I want to begin with the Lexer part and move on to Parser. I am consulting the following book: Compilers: Principles, Techniques, and Tools by Alfred V. Aho, Ravi Sethi, Jeffrey D. Ullman. The thing is that this book is highly theoretical and perplexing to me. I really appreciate the authors. But the point is i am not able to begin my project, as if i am blinded where to go. Need guidance please help.

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• Regular Expression

  - by equilibrium

  Ohh! this regular expression thing is eating my brain up. I have been reading it from Introduction to Automata Theory, Languages and Computer by Hopcroft, Motwani and Ullman. I have solved a few exercises too but could not solve the following even after trying for almost one hr. The problem is to write a regular expression that defines a language consisting of all strings of 0s and 1s except the substring 011. Is the answer (0+1)* - 011 correct ? If not what should be the correct answer for this?

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• Cannot get mod_rewrite to work on Mac OSX Mountain Lion

  - by Joel Joel Binks

  I have tried everything I can think of and it still doesn't work. I am trying to get the example code from Larry Ullman's Advanced PHP book to work. His instructions were a bit lacking so I had to do some research. Here is what I have configured: username.conf <Directory "/Users/me/Sites/"> Options Indexes MultiViews FollowSymLinks AllowOverride All Order allow,deny Allow from all </Directory> httpd.conf LoadModule rewrite_module libexec/apache2/mod_rewrite.so DocumentRoot "/Users/me/Sites" <Directory /> Options Indexes MultiViews FollowSymLinks AllowOverride All Order deny,allow Allow from all </Directory> <Directory "Users/me/Sites"> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny Allow from all </Directory> .htaccess <IfModule mod_rewrite.so> RewriteEngine on RewriteBase /phplearning/ADVANCED/ch02/ # Redirect certain paths to index.php: RewriteRule ^(about|contact|this|that|search)/?$ index.php?p=$1 RewriteLog "/var/log/apache/rewrite.log" RewriteLogLevel 2 </IfModule> Nothing has worked and it won't even log to the rewrite.log file. What have I done wrong? FYI even when I set up an extremely simple rule or use the root as the rewrite base, it still fails. I have also verified the mod_rewrite module is running. I am really angry.

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