Welcome to hakank's Home Page

Home of http://www.hakank.org, Håkan Kjellerstrand (hakank@bonetmail.com)

Svensk version av denna sida.

hakank.blogg: my webblogg. Mostly in Swedish, but there are quite a few links which may be interesting even if you don't understand the text.
My Constraint Programming Blog: My blog about Constraint Programming and related paradigms.
Arrays in Flux: Blog about programing/programming languages, mathematics, machine learning/data mining, AI, etc.

Picture.
My Linkedin page
My Twitter page. See below for the tweets.
My GitHub page
My Rosetta Code page
FOAF
CV and work related interests (English) here.
CV etc (in Swedish) here.

Contents

1. My PDDL page (planning, PDDL = "Planning Domain Definition Language")
2. My SABR page (Constraint Programming, emphasis on spatial and temporal logic)
3. My JaCop/Scala page (Constraint Programming)
4. My APL page APL (programming language)
5. My K/Kona page K (programming language)
6. My Icon/Unicon page Unicon/Icon (programming language)
7. My Perl 6 page Perl 6
8. My Answer Set Programming page declarative programmming paradigm
9. My Google CP solver page Constraint Programming with implementations in Python, Java, and C#
10. My Zinc page Constraint Programming
11. My SETL page programming language SETL
12. My JGAP page genetic programming, symbolic regression using the JGAP system
13. My Eureqa page equation discovery with genetic programming
14. My SICStus Prolog page Constraint Programming
15. My Pop-11/Poplog page Pop-11 is a great programming language, used for e.g. Artificial Intelligence.
16. Data mining, machine learning etc
17. Constraint Programming
18. My MiniZinc page Constraint Programming
19. My JaCoP page Constraint Programming in Java
20. My Choco page Constraint Programming in Java
21. My Gecode/R page Constraint Programming in Ruby and Gecode
22. My Comet page Constraint Programming, also constraint-based local search and mixed integer programming
23. My Gecode page Constraint Programming in C++
24. My ECLiPSe page Constraint Programming, Prolog based system
25. My Tailor/Essence' page Constraint Programming
26. Common constraint problems a link collection of Constraint Programming problems that are implemented in at least two systems
27. Simulation, probability theory etc
28. My movies (not complete, but a start)
29. Social Network Analysis and Complex Networks (in Swedish)
30. Systemdynamik - System Dynamics (Swedish)
31. The Litterary Corner, my own fictions, poems etc (in Swedish)
32. Comments and Notes
33. MakeRegex Make a regex (regular expression) from a list of words. A Perl module and example. Also as a Java Applet.
34. Other useless (and not so useless) programs
35. Bookmarklets
36. Some emacs elisp functions
37. Taijiquan (Tai chi chuan)

Latest

My latest programs or pages. I also write on my Swedish blog hakank.blogg, and the English blogs My Constraint Programming blog, Arrays in Flux.

• My PDDL page (planning, PDDL = "Planning Domain Definition Language")
• My SABR page (Constraint Programming, emphasis on spatial and temporal logic)
• My JaCop/Scala page (Constraint Programming)
• My APL page APL (programming language)
• My K/Kona page K (programming language)
• My Icon/Unicon page Unicon/Icon (programming language)
• My Perl 6 page Perl 6 (programming language)
• My Answer Set Programming page declarative programmming paradigm
• My Google CP solver page Constraint Programming with implementations in Python, Java, and C#
• My Zinc page Constraint Programming
• My SETL page programming language SETL
• Arrays in Flux: Blog about programing/programming languages, mathematics, machine learning/data mining, AI, etc.
  
• My JGAP page genetic programming, symbolic regression using the JGAP system
• My Eureqa page equation discovery with genetic programming
• My SICStus Prolog page Constraint Programming
• My Constraint Programming blog
• Constraint Programming
• My MiniZinc page Constraint Programming
• My JaCoP page Constraint Programming in Java
• My Choco page Constraint Programming in Java
• de Bruijn arbitrary sequences (2006-04-19) de Bruijn sequences of arbitrary length
• Svenska synonymvägar (2006-02-13) (Swedish) Shows synonym paths for Swedish words.
• Svenska synonymer (2006-02-12) (Swedish) Shows Swedish synonyms.
• Visa ordklasser (2006-01-30) (Swedish) Shows word classes for Swedish texts, and guess via suffixes.
• Word Meld Simple (2006-01-25) Tries to create "creative words" by melding two given words (a simpler version of Word Meld, see below).
• Prefix trees (2006-01-23) Given a list of words, creates shortest possible unique prefixes as well as a "prefix tree".
• Seseman's Convent Problem (2005-11-04) Solutions for the recreational mathematical puzzle "Seseman Convent Problem" (placing and counting nuns in a convent). The (Swedish) blog post Sesemans matematiska klosterproblem samt lite Constraint Logic Programming presents formulation and more discussion of the problem.
• Generate Simple Anagram (2005-09-21) Generate anagrams with different methods.
• Simple Text Summation (2005-09-19) Create very simple text summation.
• Edit distances (2005-09-11) Edit distances, Levenshtein and Hirschberg algorithms are shown
• base_conv (2005-08-27): Yet another word to number to word conversion
• Consonants Away (2005-06-01) What words are common if there where no consonants? (Cf Vowels Away
• Chiasmus words (character) (2005-01-15) Switch place of characters in two words.
• Spelling out words (2004-11-27) convert (Swedish) words according to spelled out representation.
• Isomorphic Words (2004-05-08) Search for words that have the same structure as (is isomorphic to) a word.
• Devil's word (2004-03-29) Find coincidences in a word.
• Blog Identification using n-gram for identification of blogs (2003-12-27)
• Web Markov weblogs.se generates random text similiar to some Swedish blogs (2003-12-22)
• Blog Markov genererating random text similiar to my weblog hakank.blogg (Swedish) (2003-12-21)
• Simulating coincidences - I (2003-10-15) (in Swedish)
• Project proposal: Social network analysis of the Swedish blogosphere (blog community) (2003-10-01) (in Swedish)
• Find hidden words (2003-09-26) Find hidden words in random text
• Generate spelling errors (2003-09-17) Creating texts with spelling errors
• Reading scrambled words (2003-09-15) Do we understand scrambled words?
• Systemdynamik - System Dynamics (2003-07-04) (Swedish)
• hakank.blogg My webblogg. (2003-06-18)
• Combogram some new features. (2003-05-21)
• Social Network Analysis och Complex Networks Short introduction to this fascinating topic (in Swedish) (2003-04-28)
• Make Regex Web Page (2003-04-07) Make an regex from the contents of a web page.
• Some very simple examples of text classification (03-03-31)
• My Weka page. About the data mining/machine learning-systemet Weka (03-03-30)
• Weka J48 Applet
  Applet using (some of) the options of the J48 algorithm. (03-03-30)
• Simple Weka Applet (1). A very simple applet showing some of Weka's features. (Weka is an Open Source system for machine learning/data mining written in Java.) (2003-03-27)
• Word Meld Applet Creates combined words. A Java Applet-version of Word Meld. (2003-03-24)
• Cross word Applet A Java Applet version of Cross Words (2003-03-24) (see below)
• Make Regex Applet (2003-03-20)
• De Bruijn sequences (2003-03-24) Applet version.
• Simulations, probability theory etc (2003-03-22) (interactive programs and texts in English/Swedish)
• de Bruijn sequences(2003-03-04)
• New Markov words II - highly experimental. Randomly generating new words using Markov n-grams with a lot of options. (2002-10-28)
• Markov generated proverbs Markov generated Swedish proverbs. (2002-10-12)
• New Markov words Randomly generating new words using Markov n-grams. (2002-10-03)
• Anagramatical words Lists (one word) anagrams in Swedish and English. (2002-10-02)
• Word numbers Calculate the word number of a word (2002-10-02)
• Mobile words Convert a text to a mobile keystroke sequence (and back). (2002-10-01)
• Word build Guess a random 8-letter word. Training device for Ordbygget (Word build). (2002-10-01)
• Nearest words Show nearest words (2002-09-30)
• Cross words Word finder for cross word solvers (2002-09-30)
• Web Markov Generating random texts from a web page (2002-09-30)
• Check acronyms Checking for an acronym on a web page (2002-09-30)

Probably the only advertisment on my site: bokus.com, the famous Swedish web book store, of which I once (as a consultant) was senior developer, programmer, sometimes project manager, and now my employer. Some of my early book purchases. (Links to bokus.)

This is a link to Svenska Tai Chi Chuan Institutet, founded by Klas Larsson, my teacher in Tai Chi Chuan/Taijiquan. Text mostly in Swedish.

And later in this sentence is a link to the site of Magnus Bodin: x42.com. He has done a lot of fun stuff.

Search my site with google

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If you by any chance want to contact me, please feel free to mail me at hakank@bonetmail.com