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Created page with "'''Home * People * Albrecht Heeffer''' FILE:albrechtheeffer.jpg|border|right|thumb|link=http://www.sarton.ugent.be/node/32| Albrecht Heeffer <ref>[http:/..."
'''[[Main Page|Home]] * [[People]] * Albrecht Heeffer'''
[[FILE:albrechtheeffer.jpg|border|right|thumb|link=http://www.sarton.ugent.be/node/32| Albrecht Heeffer <ref>[http://www.sarton.ugent.be/node/32 Albrecht Heeffer | Sarton Centre for History of Science]</ref> ]]
'''Albrecht Heeffer''',<br/>
a Belgian electrical engineer, philosopher and researcher with interests in the [https://en.wikipedia.org/wiki/History_of_algebra history of algebra] <ref>[http://logica.ugent.be/albrecht/math.php Sources in the history of algebra] by [[Albrecht Heeffer]]</ref>, [https://en.wikipedia.org/wiki/Computational_model computational models] for [https://en.wikipedia.org/wiki/Discovery_%28observation%29 scientific discovery], [https://en.wikipedia.org/wiki/Recreational_mathematics recreational mathematics], and further in chess, computer chess and [[Shogi|shogi]]. He holds a degree in [https://en.wikipedia.org/wiki/Electrical_engineering electrical engineering] and a Ph.D. in [https://en.wikipedia.org/wiki/Philosophy philosophy] from [https://en.wikipedia.org/wiki/Ghent_University Ghent University] in 2006 on the topic of emergence of [https://en.wikipedia.org/wiki/Symbolic_computation symbolic algebra] during the [https://en.wikipedia.org/wiki/16th_century sixteenth century] <ref>[[Albrecht Heeffer]] ('''2006'''). ''Van precepten tot vergelijkingen: de conceptuele ontwikkeling van de symbolische algebra in de zestiende eeuw''. Ph. D. thesis, [https://en.wikipedia.org/wiki/Ghent_University Universiteit Gent]</ref>, and is post-doctoral fellow of the Research Foundation Flanders (FWO) and member of the Center for Logic and Philosophy of Science <ref>[https://www.clps.ugent.be/people/members Members | Centre for Logic and Philosophy of Science]</ref> at Ghent University. In 1984, during a three month visit of the [https://en.wikipedia.org/wiki/Turing_Institute Turing Institute] in [https://en.wikipedia.org/wiki/Glasgow Glasgow], Albrecht Heeffer worked on ''automated acquisition on concepts for the description of [[Middlegame|middlegame]] positions in chess'' <ref>[[Albrecht Heeffer]] ('''1984'''). ''Automated Acquisition on Concepts for the Description of Middle-game Positions in Chess''. [https://en.wikipedia.org/wiki/Turing_Institute Turing Institute], [https://en.wikipedia.org/wiki/Glasgow Glasgow], [https://en.wikipedia.org/wiki/Scotland Scotland], TIRM-85-005</ref>, supported by [[Donald Michie]], [[John Roycroft]], and [[Tim Niblett]] <ref> [[Albrecht Heeffer]] ('''1985'''). ''[http://hdl.handle.net/1854/LU-1112217 Validating Concepts from Automated Acquisition Systems]''. [[Conferences#IJCAI|IJCAI 85]], [http://ijcai.org/Past%20Proceedings/IJCAI-85-VOL1/PDF/118.pdf pdf], This work was carried out during a three month visit at the [https://en.wikipedia.org/wiki/Turing_Institute Turing Institute]. Financial support was provided by the Belgian [https://en.wikipedia.org/wiki/National_Fund_for_Scientific_Research NFWO] and the ICIWO. I would like to express my thank s to [https://biblio.ugent.be/person/801000230837 Prof. F. Vandamme] of the [https://en.wikipedia.org/wiki/Ghent_University University of Ghent], and to [[Donald Michie|Prof. Donald Michie]], [[John Roycroft|Mr John Roycroft]] and [[Tim Niblett|Dr Tim Niblett]] of the Turing Institute, for their helpful suggestions</ref>.
Albrecht Heeffer was member of the [[Bionic Impakt]] team with [[Hans Secelle]], and provided the hardware, [[Engine Testing|worked]] through the [[Test-Positions|test sets]], added the [[Endgame Tablebases|endgame databases]] and did some optimizations <ref>[https://www.stmintz.com/ccc/index.php?id=40771 Re: Bionic Vs Crafty Debate: some data required] by [[Albrecht Heeffer]], [[CCC]], January 25, 1999 » [[Crafty]]</ref>, while they later joined the [[Ant]] team around [[Tom Vijlbrief]].
=Photos=
[[FILE:ict2001antfritz.jpg|none|border|text-bottom|580px|link=http://titanic.nyme.hu/%7Ewyx/csvn2001/]]
Albrecht Heeffer, [[Mathias Feist]] and [[Frans Morsch]], [[ICT 2001]] <ref>[http://titanic.nyme.hu/%7Ewyx/csvn2001/ Leiden 2001] by [[László Szalai]]</ref>, round 5, [[Ant]] - [[Fritz]] <ref>[http://www.csvn.nl/downloads/partijen/csvn-international-computer-chess-tournament/62-ict-leiden-2001/file ICT Leiden 2001 - download]</ref>
[[FILE:habu-heeffer.jpg|none|border|text-bottom|580px|link=http://logica.ugent.be/albrecht/habu.html]]
[https://en.wikipedia.org/wiki/Boris_Spassky Boris Spassky], [https://en.wikipedia.org/wiki/Yoshiharu_Habu Yoshiharu Habu], Albrecht Heeffer, Paris May 23, 2002 <ref>[http://logica.ugent.be/albrecht/habu.html Albrecht Heeffer - My game against Habu]</ref>
=Selected Publications=
<ref>[http://logica.ugent.be/centrum/writings/pubs.php Preprints from 1995 on]</ref> <ref>[https://biblio.ugent.be/person/801000575690 Albrecht Heeffer - Publications]</ref> <ref>[http://www.informatik.uni-trier.de/~ley/pers/hd/h/Heeffer:Albrecht dblp: Albrecht Heeffer]</ref>
==1984==
* [[Albrecht Heeffer]] ('''1984'''). ''Automated Acquisition on Concepts for the Description of Middle-game Positions in Chess''. [https://en.wikipedia.org/wiki/Turing_Institute Turing Institute], [https://en.wikipedia.org/wiki/Glasgow Glasgow], [https://en.wikipedia.org/wiki/Scotland Scotland], TIRM-84-005
==1985 ...==
* [[Albrecht Heeffer]] ('''1985'''). ''[http://hdl.handle.net/1854/LU-1112217 Validating Concepts from Automated Acquisition Systems]''. [[Conferences#IJCAI|IJCAI 85]], [http://ijcai.org/Past%20Proceedings/IJCAI-85-VOL1/PDF/118.pdf pdf]
* [[Albrecht Heeffer]], [http://www.ipem.ugent.be/MarcLeman Marc Leman] ('''1986'''). ''[http://hdl.handle.net/1854/LU-411801 Chunking as a Method for Concept Acquisition]''. Proceedings of the 7th European Conference on Artificial Intelligence
* [https://biblio.ugent.be/person/801000230837 Fernand Vandamme], [[Albrecht Heeffer]] ('''1986'''). ''[http://hdl.handle.net/1854/LU-411802 An overview of expert systems]''. Proceedings of Expert Systems: Available Hard- and Software
==1995 ...==
* [http://www.kuleuven.be/wieiswie/en/person/u0003471 Patrick De Causmaecker], [[Albrecht Heeffer]], [http://www.kuleuven.be/wieiswie/en/person/u0053376 Greet Vanden Berghe] ('''1997'''). ''[http://hdl.handle.net/1854/LU-320353 A Cost Function approach towards Scheduling of Highly Constrained Resources]''. Proceedings of the International Colloquium on European Cooperation in International Projects, Information Technologies and Environmental Sciences
==2000 ...==
* [[Albrecht Heeffer]] ('''2003'''). ''Kepler's near discovery of the sine law: a qualitative computational model''. [http://www.lip.uns.edu.ar/cmsra/ Computer modeling of scientific reasoning], [http://logica.ugent.be/albrecht/thesis/Heeffer-CMSRAfinal.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Johannes_Kepler Johannes Kepler from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2004'''). ''Récréations Mathématiques (1624) A Study on its Authorship, Sources and Influence''. [http://logica.ugent.be/albrecht/thesis/Etten-intro.pdf pdf]
==2005 ...==
* [[Albrecht Heeffer]] ('''2006'''). ''The Regula Quantitatis or the invention of the second unknown''. The 22nd International Conference on the History of Science
* [[Albrecht Heeffer]] ('''2006'''). ''Van precepten tot vergelijkingen: de conceptuele ontwikkeling van de symbolische algebra in de zestiende eeuw''. [http://logica.ugent.be/centrum/writings/doctoraten.php Ph. D. thesis], [https://en.wikipedia.org/wiki/Ghent_University Universiteit Gent] ([https://en.wikipedia.org/wiki/Flemish Flemish])
* [[Albrecht Heeffer]], Harold Heeffer ('''2007'''). ''Near-Optimal Strategies for the Game of Logik''. [http://logica.ugent.be/albrecht/thesis/Logik.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Mastermind_%28board_game%29 Mastermind (board game) from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2007'''). ''Mathematics education through lesson study in the Asia-Pacific region''. [http://logica.ugent.be/albrecht/thesis/APEC2007.pdf pdf]
* [[Albrecht Heeffer]] ('''2007'''). ''On the Nature and Origin of Algebraic Symbolism.'' [http://logica.ugent.be/albrecht/thesis/PMP2007Heeffer.pdf pdf]
* [[Albrecht Heeffer]] ('''2007'''). ''Humanist Repudiation of Eastern Influences in Early Modern Mathematics''. [http://logica.ugent.be/albrecht/thesis/Repudiation2007.pdf pdf]
* [[Albrecht Heeffer]] ('''2008'''). ''From Problem Solving to Argumentation: Pacioli’s Appropriation of Abbacus Algebra''. [http://logica.ugent.be/albrecht/thesis/Argumentation2.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Luca_Pacioli Luca Pacioli from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2008'''). ''Negative Numbers As An Epistemic Difficult Concept: Some Lessons From History''. [http://logica.ugent.be/albrecht/thesis/HPM2008.pdf pdf]
* [[Albrecht Heeffer]] ('''2008'''). ''Text production, reproduction and appropriation within the abbaco tradition: a case study.'' [http://logica.ugent.be/albrecht/thesis/ragione-part3.pdf pdf]
* [[Albrecht Heeffer]] ('''2008'''). ''Estienne de la Roche’s appropriation of Chuquet (1484)''. [http://logica.ugent.be/albrecht/thesis/DeLaRoche2008.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Estienne_de_La_Roche Estienne de la Roche from Wikipedia]</ref> <ref>[https://en.wikipedia.org/wiki/Nicolas_Chuquet Nicolas Chuquet from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2008'''). ''On the interpretation of early Italian bartering problems''. [http://logica.ugent.be/albrecht/thesis/Barter.pdf pdf]
* [[Albrecht Heeffer]] ('''2008'''). ''A Conceptual Analysis of Early Arabic Algebra''. [http://logica.ugent.be/albrecht/thesis/ArabAlgebra.pdf pdf]
* [[Albrecht Heeffer]] ('''2009'''). ''On the curious historical coincidence of algebra and double-entry bookkeeping''. To appear in: [http://www.vub.ac.be/CLWF/members/karen/indexnl.shtml Karen François], [http://staff.science.uva.nl/~bloewe/ Benedikt Löwe], [http://www.phil.uu.nl/~tmueller/ Thomas Müller], [http://www.aycaramba.be/bart/ Bart van Kerkhove] (eds.) ''[http://staff.science.uva.nl/~bloewe/edited.html Foundations of the Formal Sciences. Bringing together Philosophy and Sociology of Science]'', College Publications, London. [http://logica.ugent.be/albrecht/thesis/FOTFS2008-Heeffer.pdf pdf]
* [[Albrecht Heeffer]] ('''2009'''). ''The Abbacus Tradition: the Missing Link between Arabic and Early Symbolic Algebra?'' [http://logica.ugent.be/albrecht/thesis/Heeffer-PantNagar.pdf pdf]
* [[Albrecht Heeffer]] ('''2009'''). ''Algebraic partitioning problems from Luca Pacioli's Perugia manuscript (Vat. Lat. 3129)''. [http://logica.ugent.be/albrecht/thesis/Pacioli.pdf pdf]
==2010 ...==
* [[Albrecht Heeffer]] ('''2010'''). ''Regiomontanus and Chinese Mathematics''. [http://logica.ugent.be/albrecht/thesis/Philosophica2010.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Regiomontanus Regiomontanus from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2011'''). ''The Rule of Quantity by Chuquet and de la Roche and its Influence on German Cossic Algebra''. Archives internationales d'histoire des sciences, [http://logica.ugent.be/albrecht/thesis/DeLaRoche2010.pdf pdf]
* [[Albrecht Heeffer]] ('''2011'''). ''Models of scientific discovery: what do they explain?''. [http://www-3.unipv.it/webphilos_lab/courses/PCS2011.htm Third international conference on philosophy and cognitive science], Proceedings <ref>[https://en.wikipedia.org/wiki/Knowledge_extraction Knowledge extraction from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2011'''). ''From problem solving to the teaching of algebra: the genesis of the algebra textbook''. [http://ihpst2011.eled.auth.gr/ 11th international IHPST and 6th Greek history, philosophy and science teaching joint conference], Proceedings
* [[Albrecht Heeffer]] ('''2012'''). ''The genesis of the algebra textbook: from Pacioli to Euler''. [https://en.wikipedia.org/wiki/Almagest_%28journal%29 Almagest]
* [[Albrecht Heeffer]] ('''2012'''). ''Dutch arithmetic, samurai and warships: teaching of Western mathematics in pre-Meiji Japan''. [http://www.clab.edc.uoc.gr/hpm/ History and Pedagogy of Mathematics], Proceedings <ref>[https://en.wikipedia.org/wiki/Emperor_Meiji Emperor Meiji from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2012'''). ''Sangaku: the mathematics of traditional Japanese votive tablets''. [http://www.ima.org.uk/activities/publications/mathematics_today.cfm.html Mathematics Today] <ref>[https://en.wikipedia.org/wiki/Sangaku Sangaku from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2013'''). ''Why the quadratic equation has only one root (according to abbaco masters)''. [http://www.ima.org.uk/activities/publications/mathematics_today.cfm.html Mathematics Today]
* [[Albrecht Heeffer]] ('''2013'''). ''Algebraic symbolism as a conceptual barrier in learning mathematics''. [http://madipedia.de/wiki/The_Sixth_East_Asia_Regional_Conference_on_Mathematics_Education 6th East Asia Regional Conference on Mathematics Education], Proceedings
* [[Albrecht Heeffer]] ('''2013'''). ''Was Uncle Tom right that quadratic problems can't be solved with the rule of false position?''. [https://en.wikipedia.org/wiki/The_Mathematical_Intelligencer The Mathematical Intelligencer]
* [[Albrecht Heeffer]] ('''2014'''). ''Cardano's favorite problem: the Proportio Reflexa''. [https://en.wikipedia.org/wiki/The_Mathematical_Intelligencer The Mathematical Intelligencer] <ref>[https://en.wikipedia.org/wiki/Gerolamo_Cardano Gerolamo Cardano from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2014'''). ''Data-driven induction in scientific discovery: a critical assessment based on Kepler's discoveries''. [https://link.springer.com/book/10.1007%2F978-94-017-9011-6 Logic, Reasoning, and Rationality]], in [https://link.springer.com/bookseries/11547 Logic, Argumentation & Reasoning], Vol. 5, [https://en.wikipedia.org/wiki/Springer_Science%2BBusiness_Media Springer]
==2015 ....==
* Sister Mary Leontius Schulte, [[Albrecht Heeffer]] ('''2015'''). ''[https://biblio.ugent.be/publication/5927730 Writing the history of mathematical notation: 1483 - 1700]''. Docent Press, [https://www.amazon.com/Writing-History-Mathematical-Notations-1483-1700/dp/0988744996 amazon]
* [[Albrecht Heeffer]] ('''2016'''). ''The Emperor’s New Mathematics: Western Learning and Imperial Authority During the Kangxi Reign (1662–1722) by Catherine Jami''.[https://en.wikipedia.org/wiki/The_Mathematical_Intelligencer The Mathematical Intelligencer], Vol. 38, No. 2
* Matthijs Hendricus Sitters, [[Albrecht Heeffer]] ('''2016'''). ''The Hundred Geometrical Questions of Sybrandt Hansz Cardinael: Early-modern Dutch Geometry from the Surveyor's Tradition''. Docent Press, [https://www.amazon.com/Hundred-Geometrical-Questions-Sybrandt-Cardinael/dp/1942795955 amazon] <ref>[https://nl.wikipedia.org/wiki/Sybrandt_Hansz._Cardinael Sybrandt Hansz. Cardinael - Wikipedia.nl] (Dutch)</ref>
* [[Albrecht Heeffer]] ('''2017'''). ''Arithmetic in the Renaissance.'' [https://link.springer.com/referencework/10.1007/978-3-319-02848-4 Encyclopedia of Renaissance Philosophy], Ed. [https://en.wikipedia.org/wiki/Marco_Sgarbi Marco Sgarbi], [https://en.wikipedia.org/wiki/Springer_Science%2BBusiness_Media Springer]
* [[Albrecht Heeffer]] ('''2017'''). ''Using Invariances in Geometrical Diagrams: Della Porta, Kepler and Descartes on Refraction''. [https://link.springer.com/book/10.1007%2F978-3-319-50215-1 The Optics of Giambattista Della Porta (ca. 1535–1615): a Reassessment], [https://en.wikipedia.org/wiki/Springer_Science%2BBusiness_Media Springer]
=External Links=
* [https://research.flw.ugent.be/en/albrecht.heeffer Albrecht Heeffer | Faculty of Arts and Philosophy - Research Portal]
* [http://www.sarton.ugent.be/node/32 Albrecht Heeffer | Sarton Centre for History of Science]
* [http://logica.ugent.be/albrecht/ Albrecht Heeffer's homepage]
* [http://scholar.google.com/citations?user=4v1WZqYAAAAJ&hl=en Albrecht Heeffer - Google Scholar Citations]
* [http://www.researchgate.net/profile/Albrecht_Heeffer Albrecht Heeffer - ResearchGate]
* [http://www.shogi.net/fesa/esc2003/participants/ European/Worldwide Open Shogi Championship 2002 - Participants]
* [[Albrecht Heeffer]] - The Abbaco mathematical culture (1300 - 1500) , [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [https://sites.google.com/site/mathematicalcultures/Confirmed-Speakers First Conference on Mathematical Cultures], September 10-12, 2012 at [https://en.wikipedia.org/wiki/London_Mathematical_Society De Morgan House], [https://en.wikipedia.org/wiki/London London]
: {{#evu:https://www.youtube.com/watch?v=Eub1gGhSyvM|alignment=left|valignment=top}}
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Mathematician|Heeffer]]
[[Category:Shogi Player|Heeffer]]
[[FILE:albrechtheeffer.jpg|border|right|thumb|link=http://www.sarton.ugent.be/node/32| Albrecht Heeffer <ref>[http://www.sarton.ugent.be/node/32 Albrecht Heeffer | Sarton Centre for History of Science]</ref> ]]
'''Albrecht Heeffer''',<br/>
a Belgian electrical engineer, philosopher and researcher with interests in the [https://en.wikipedia.org/wiki/History_of_algebra history of algebra] <ref>[http://logica.ugent.be/albrecht/math.php Sources in the history of algebra] by [[Albrecht Heeffer]]</ref>, [https://en.wikipedia.org/wiki/Computational_model computational models] for [https://en.wikipedia.org/wiki/Discovery_%28observation%29 scientific discovery], [https://en.wikipedia.org/wiki/Recreational_mathematics recreational mathematics], and further in chess, computer chess and [[Shogi|shogi]]. He holds a degree in [https://en.wikipedia.org/wiki/Electrical_engineering electrical engineering] and a Ph.D. in [https://en.wikipedia.org/wiki/Philosophy philosophy] from [https://en.wikipedia.org/wiki/Ghent_University Ghent University] in 2006 on the topic of emergence of [https://en.wikipedia.org/wiki/Symbolic_computation symbolic algebra] during the [https://en.wikipedia.org/wiki/16th_century sixteenth century] <ref>[[Albrecht Heeffer]] ('''2006'''). ''Van precepten tot vergelijkingen: de conceptuele ontwikkeling van de symbolische algebra in de zestiende eeuw''. Ph. D. thesis, [https://en.wikipedia.org/wiki/Ghent_University Universiteit Gent]</ref>, and is post-doctoral fellow of the Research Foundation Flanders (FWO) and member of the Center for Logic and Philosophy of Science <ref>[https://www.clps.ugent.be/people/members Members | Centre for Logic and Philosophy of Science]</ref> at Ghent University. In 1984, during a three month visit of the [https://en.wikipedia.org/wiki/Turing_Institute Turing Institute] in [https://en.wikipedia.org/wiki/Glasgow Glasgow], Albrecht Heeffer worked on ''automated acquisition on concepts for the description of [[Middlegame|middlegame]] positions in chess'' <ref>[[Albrecht Heeffer]] ('''1984'''). ''Automated Acquisition on Concepts for the Description of Middle-game Positions in Chess''. [https://en.wikipedia.org/wiki/Turing_Institute Turing Institute], [https://en.wikipedia.org/wiki/Glasgow Glasgow], [https://en.wikipedia.org/wiki/Scotland Scotland], TIRM-85-005</ref>, supported by [[Donald Michie]], [[John Roycroft]], and [[Tim Niblett]] <ref> [[Albrecht Heeffer]] ('''1985'''). ''[http://hdl.handle.net/1854/LU-1112217 Validating Concepts from Automated Acquisition Systems]''. [[Conferences#IJCAI|IJCAI 85]], [http://ijcai.org/Past%20Proceedings/IJCAI-85-VOL1/PDF/118.pdf pdf], This work was carried out during a three month visit at the [https://en.wikipedia.org/wiki/Turing_Institute Turing Institute]. Financial support was provided by the Belgian [https://en.wikipedia.org/wiki/National_Fund_for_Scientific_Research NFWO] and the ICIWO. I would like to express my thank s to [https://biblio.ugent.be/person/801000230837 Prof. F. Vandamme] of the [https://en.wikipedia.org/wiki/Ghent_University University of Ghent], and to [[Donald Michie|Prof. Donald Michie]], [[John Roycroft|Mr John Roycroft]] and [[Tim Niblett|Dr Tim Niblett]] of the Turing Institute, for their helpful suggestions</ref>.
Albrecht Heeffer was member of the [[Bionic Impakt]] team with [[Hans Secelle]], and provided the hardware, [[Engine Testing|worked]] through the [[Test-Positions|test sets]], added the [[Endgame Tablebases|endgame databases]] and did some optimizations <ref>[https://www.stmintz.com/ccc/index.php?id=40771 Re: Bionic Vs Crafty Debate: some data required] by [[Albrecht Heeffer]], [[CCC]], January 25, 1999 » [[Crafty]]</ref>, while they later joined the [[Ant]] team around [[Tom Vijlbrief]].
=Photos=
[[FILE:ict2001antfritz.jpg|none|border|text-bottom|580px|link=http://titanic.nyme.hu/%7Ewyx/csvn2001/]]
Albrecht Heeffer, [[Mathias Feist]] and [[Frans Morsch]], [[ICT 2001]] <ref>[http://titanic.nyme.hu/%7Ewyx/csvn2001/ Leiden 2001] by [[László Szalai]]</ref>, round 5, [[Ant]] - [[Fritz]] <ref>[http://www.csvn.nl/downloads/partijen/csvn-international-computer-chess-tournament/62-ict-leiden-2001/file ICT Leiden 2001 - download]</ref>
[[FILE:habu-heeffer.jpg|none|border|text-bottom|580px|link=http://logica.ugent.be/albrecht/habu.html]]
[https://en.wikipedia.org/wiki/Boris_Spassky Boris Spassky], [https://en.wikipedia.org/wiki/Yoshiharu_Habu Yoshiharu Habu], Albrecht Heeffer, Paris May 23, 2002 <ref>[http://logica.ugent.be/albrecht/habu.html Albrecht Heeffer - My game against Habu]</ref>
=Selected Publications=
<ref>[http://logica.ugent.be/centrum/writings/pubs.php Preprints from 1995 on]</ref> <ref>[https://biblio.ugent.be/person/801000575690 Albrecht Heeffer - Publications]</ref> <ref>[http://www.informatik.uni-trier.de/~ley/pers/hd/h/Heeffer:Albrecht dblp: Albrecht Heeffer]</ref>
==1984==
* [[Albrecht Heeffer]] ('''1984'''). ''Automated Acquisition on Concepts for the Description of Middle-game Positions in Chess''. [https://en.wikipedia.org/wiki/Turing_Institute Turing Institute], [https://en.wikipedia.org/wiki/Glasgow Glasgow], [https://en.wikipedia.org/wiki/Scotland Scotland], TIRM-84-005
==1985 ...==
* [[Albrecht Heeffer]] ('''1985'''). ''[http://hdl.handle.net/1854/LU-1112217 Validating Concepts from Automated Acquisition Systems]''. [[Conferences#IJCAI|IJCAI 85]], [http://ijcai.org/Past%20Proceedings/IJCAI-85-VOL1/PDF/118.pdf pdf]
* [[Albrecht Heeffer]], [http://www.ipem.ugent.be/MarcLeman Marc Leman] ('''1986'''). ''[http://hdl.handle.net/1854/LU-411801 Chunking as a Method for Concept Acquisition]''. Proceedings of the 7th European Conference on Artificial Intelligence
* [https://biblio.ugent.be/person/801000230837 Fernand Vandamme], [[Albrecht Heeffer]] ('''1986'''). ''[http://hdl.handle.net/1854/LU-411802 An overview of expert systems]''. Proceedings of Expert Systems: Available Hard- and Software
==1995 ...==
* [http://www.kuleuven.be/wieiswie/en/person/u0003471 Patrick De Causmaecker], [[Albrecht Heeffer]], [http://www.kuleuven.be/wieiswie/en/person/u0053376 Greet Vanden Berghe] ('''1997'''). ''[http://hdl.handle.net/1854/LU-320353 A Cost Function approach towards Scheduling of Highly Constrained Resources]''. Proceedings of the International Colloquium on European Cooperation in International Projects, Information Technologies and Environmental Sciences
==2000 ...==
* [[Albrecht Heeffer]] ('''2003'''). ''Kepler's near discovery of the sine law: a qualitative computational model''. [http://www.lip.uns.edu.ar/cmsra/ Computer modeling of scientific reasoning], [http://logica.ugent.be/albrecht/thesis/Heeffer-CMSRAfinal.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Johannes_Kepler Johannes Kepler from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2004'''). ''Récréations Mathématiques (1624) A Study on its Authorship, Sources and Influence''. [http://logica.ugent.be/albrecht/thesis/Etten-intro.pdf pdf]
==2005 ...==
* [[Albrecht Heeffer]] ('''2006'''). ''The Regula Quantitatis or the invention of the second unknown''. The 22nd International Conference on the History of Science
* [[Albrecht Heeffer]] ('''2006'''). ''Van precepten tot vergelijkingen: de conceptuele ontwikkeling van de symbolische algebra in de zestiende eeuw''. [http://logica.ugent.be/centrum/writings/doctoraten.php Ph. D. thesis], [https://en.wikipedia.org/wiki/Ghent_University Universiteit Gent] ([https://en.wikipedia.org/wiki/Flemish Flemish])
* [[Albrecht Heeffer]], Harold Heeffer ('''2007'''). ''Near-Optimal Strategies for the Game of Logik''. [http://logica.ugent.be/albrecht/thesis/Logik.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Mastermind_%28board_game%29 Mastermind (board game) from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2007'''). ''Mathematics education through lesson study in the Asia-Pacific region''. [http://logica.ugent.be/albrecht/thesis/APEC2007.pdf pdf]
* [[Albrecht Heeffer]] ('''2007'''). ''On the Nature and Origin of Algebraic Symbolism.'' [http://logica.ugent.be/albrecht/thesis/PMP2007Heeffer.pdf pdf]
* [[Albrecht Heeffer]] ('''2007'''). ''Humanist Repudiation of Eastern Influences in Early Modern Mathematics''. [http://logica.ugent.be/albrecht/thesis/Repudiation2007.pdf pdf]
* [[Albrecht Heeffer]] ('''2008'''). ''From Problem Solving to Argumentation: Pacioli’s Appropriation of Abbacus Algebra''. [http://logica.ugent.be/albrecht/thesis/Argumentation2.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Luca_Pacioli Luca Pacioli from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2008'''). ''Negative Numbers As An Epistemic Difficult Concept: Some Lessons From History''. [http://logica.ugent.be/albrecht/thesis/HPM2008.pdf pdf]
* [[Albrecht Heeffer]] ('''2008'''). ''Text production, reproduction and appropriation within the abbaco tradition: a case study.'' [http://logica.ugent.be/albrecht/thesis/ragione-part3.pdf pdf]
* [[Albrecht Heeffer]] ('''2008'''). ''Estienne de la Roche’s appropriation of Chuquet (1484)''. [http://logica.ugent.be/albrecht/thesis/DeLaRoche2008.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Estienne_de_La_Roche Estienne de la Roche from Wikipedia]</ref> <ref>[https://en.wikipedia.org/wiki/Nicolas_Chuquet Nicolas Chuquet from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2008'''). ''On the interpretation of early Italian bartering problems''. [http://logica.ugent.be/albrecht/thesis/Barter.pdf pdf]
* [[Albrecht Heeffer]] ('''2008'''). ''A Conceptual Analysis of Early Arabic Algebra''. [http://logica.ugent.be/albrecht/thesis/ArabAlgebra.pdf pdf]
* [[Albrecht Heeffer]] ('''2009'''). ''On the curious historical coincidence of algebra and double-entry bookkeeping''. To appear in: [http://www.vub.ac.be/CLWF/members/karen/indexnl.shtml Karen François], [http://staff.science.uva.nl/~bloewe/ Benedikt Löwe], [http://www.phil.uu.nl/~tmueller/ Thomas Müller], [http://www.aycaramba.be/bart/ Bart van Kerkhove] (eds.) ''[http://staff.science.uva.nl/~bloewe/edited.html Foundations of the Formal Sciences. Bringing together Philosophy and Sociology of Science]'', College Publications, London. [http://logica.ugent.be/albrecht/thesis/FOTFS2008-Heeffer.pdf pdf]
* [[Albrecht Heeffer]] ('''2009'''). ''The Abbacus Tradition: the Missing Link between Arabic and Early Symbolic Algebra?'' [http://logica.ugent.be/albrecht/thesis/Heeffer-PantNagar.pdf pdf]
* [[Albrecht Heeffer]] ('''2009'''). ''Algebraic partitioning problems from Luca Pacioli's Perugia manuscript (Vat. Lat. 3129)''. [http://logica.ugent.be/albrecht/thesis/Pacioli.pdf pdf]
==2010 ...==
* [[Albrecht Heeffer]] ('''2010'''). ''Regiomontanus and Chinese Mathematics''. [http://logica.ugent.be/albrecht/thesis/Philosophica2010.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Regiomontanus Regiomontanus from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2011'''). ''The Rule of Quantity by Chuquet and de la Roche and its Influence on German Cossic Algebra''. Archives internationales d'histoire des sciences, [http://logica.ugent.be/albrecht/thesis/DeLaRoche2010.pdf pdf]
* [[Albrecht Heeffer]] ('''2011'''). ''Models of scientific discovery: what do they explain?''. [http://www-3.unipv.it/webphilos_lab/courses/PCS2011.htm Third international conference on philosophy and cognitive science], Proceedings <ref>[https://en.wikipedia.org/wiki/Knowledge_extraction Knowledge extraction from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2011'''). ''From problem solving to the teaching of algebra: the genesis of the algebra textbook''. [http://ihpst2011.eled.auth.gr/ 11th international IHPST and 6th Greek history, philosophy and science teaching joint conference], Proceedings
* [[Albrecht Heeffer]] ('''2012'''). ''The genesis of the algebra textbook: from Pacioli to Euler''. [https://en.wikipedia.org/wiki/Almagest_%28journal%29 Almagest]
* [[Albrecht Heeffer]] ('''2012'''). ''Dutch arithmetic, samurai and warships: teaching of Western mathematics in pre-Meiji Japan''. [http://www.clab.edc.uoc.gr/hpm/ History and Pedagogy of Mathematics], Proceedings <ref>[https://en.wikipedia.org/wiki/Emperor_Meiji Emperor Meiji from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2012'''). ''Sangaku: the mathematics of traditional Japanese votive tablets''. [http://www.ima.org.uk/activities/publications/mathematics_today.cfm.html Mathematics Today] <ref>[https://en.wikipedia.org/wiki/Sangaku Sangaku from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2013'''). ''Why the quadratic equation has only one root (according to abbaco masters)''. [http://www.ima.org.uk/activities/publications/mathematics_today.cfm.html Mathematics Today]
* [[Albrecht Heeffer]] ('''2013'''). ''Algebraic symbolism as a conceptual barrier in learning mathematics''. [http://madipedia.de/wiki/The_Sixth_East_Asia_Regional_Conference_on_Mathematics_Education 6th East Asia Regional Conference on Mathematics Education], Proceedings
* [[Albrecht Heeffer]] ('''2013'''). ''Was Uncle Tom right that quadratic problems can't be solved with the rule of false position?''. [https://en.wikipedia.org/wiki/The_Mathematical_Intelligencer The Mathematical Intelligencer]
* [[Albrecht Heeffer]] ('''2014'''). ''Cardano's favorite problem: the Proportio Reflexa''. [https://en.wikipedia.org/wiki/The_Mathematical_Intelligencer The Mathematical Intelligencer] <ref>[https://en.wikipedia.org/wiki/Gerolamo_Cardano Gerolamo Cardano from Wikipedia]</ref>
* [[Albrecht Heeffer]] ('''2014'''). ''Data-driven induction in scientific discovery: a critical assessment based on Kepler's discoveries''. [https://link.springer.com/book/10.1007%2F978-94-017-9011-6 Logic, Reasoning, and Rationality]], in [https://link.springer.com/bookseries/11547 Logic, Argumentation & Reasoning], Vol. 5, [https://en.wikipedia.org/wiki/Springer_Science%2BBusiness_Media Springer]
==2015 ....==
* Sister Mary Leontius Schulte, [[Albrecht Heeffer]] ('''2015'''). ''[https://biblio.ugent.be/publication/5927730 Writing the history of mathematical notation: 1483 - 1700]''. Docent Press, [https://www.amazon.com/Writing-History-Mathematical-Notations-1483-1700/dp/0988744996 amazon]
* [[Albrecht Heeffer]] ('''2016'''). ''The Emperor’s New Mathematics: Western Learning and Imperial Authority During the Kangxi Reign (1662–1722) by Catherine Jami''.[https://en.wikipedia.org/wiki/The_Mathematical_Intelligencer The Mathematical Intelligencer], Vol. 38, No. 2
* Matthijs Hendricus Sitters, [[Albrecht Heeffer]] ('''2016'''). ''The Hundred Geometrical Questions of Sybrandt Hansz Cardinael: Early-modern Dutch Geometry from the Surveyor's Tradition''. Docent Press, [https://www.amazon.com/Hundred-Geometrical-Questions-Sybrandt-Cardinael/dp/1942795955 amazon] <ref>[https://nl.wikipedia.org/wiki/Sybrandt_Hansz._Cardinael Sybrandt Hansz. Cardinael - Wikipedia.nl] (Dutch)</ref>
* [[Albrecht Heeffer]] ('''2017'''). ''Arithmetic in the Renaissance.'' [https://link.springer.com/referencework/10.1007/978-3-319-02848-4 Encyclopedia of Renaissance Philosophy], Ed. [https://en.wikipedia.org/wiki/Marco_Sgarbi Marco Sgarbi], [https://en.wikipedia.org/wiki/Springer_Science%2BBusiness_Media Springer]
* [[Albrecht Heeffer]] ('''2017'''). ''Using Invariances in Geometrical Diagrams: Della Porta, Kepler and Descartes on Refraction''. [https://link.springer.com/book/10.1007%2F978-3-319-50215-1 The Optics of Giambattista Della Porta (ca. 1535–1615): a Reassessment], [https://en.wikipedia.org/wiki/Springer_Science%2BBusiness_Media Springer]
=External Links=
* [https://research.flw.ugent.be/en/albrecht.heeffer Albrecht Heeffer | Faculty of Arts and Philosophy - Research Portal]
* [http://www.sarton.ugent.be/node/32 Albrecht Heeffer | Sarton Centre for History of Science]
* [http://logica.ugent.be/albrecht/ Albrecht Heeffer's homepage]
* [http://scholar.google.com/citations?user=4v1WZqYAAAAJ&hl=en Albrecht Heeffer - Google Scholar Citations]
* [http://www.researchgate.net/profile/Albrecht_Heeffer Albrecht Heeffer - ResearchGate]
* [http://www.shogi.net/fesa/esc2003/participants/ European/Worldwide Open Shogi Championship 2002 - Participants]
* [[Albrecht Heeffer]] - The Abbaco mathematical culture (1300 - 1500) , [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [https://sites.google.com/site/mathematicalcultures/Confirmed-Speakers First Conference on Mathematical Cultures], September 10-12, 2012 at [https://en.wikipedia.org/wiki/London_Mathematical_Society De Morgan House], [https://en.wikipedia.org/wiki/London London]
: {{#evu:https://www.youtube.com/watch?v=Eub1gGhSyvM|alignment=left|valignment=top}}
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Mathematician|Heeffer]]
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