- curry - lists.rwth-aachen.de

Choosing default instances in Curry
by Andy Jost 27 May '19

27 May '19

I'm trying to understand the implementation of typeclasses in Curry so that I can implement them in my compiler. Is there some documentation describing how dictionaries are implemented, including the naming conventions used? One problem I face is knowing how to choose default instances. For example, the program "main = 1 + 1" translates to the following FlatCurry: program "test" import "Prelude" function "test.main" 1 lhs_vars [1] Node "Prelude.apply" ( Node "Prelude.apply" ( Node "Prelude.+" ( var 1 ) , Node "Prelude.apply" ( Node "Prelude.fromInt" ( var 1 ) , int 1 ) ) , Node "Prelude.apply" ( Node "Prelude.fromInt" ( var 1 ) , int 1 ) ) Function "main" expects an implicit argument that is an instance of Prelude.Num. This is because no type declaration was specified, so its type is "Num a => a". If I were to declare main as having a concrete type such as Int or Float, then it would take no arguments. KiCS2 and PAKCS can run this program, so they must somehow choose a default instance. How is this done? I'm especially bothered that the FlatCurry appears to be missing crucial information - i.e., the fact that "main" expects a Num instance is not mentioned in the FlatCurry. How do other Curry implementations know to pass a Num dictionary and how is the default instance chosen? -Andy

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How to interpret a data type with no RHS
by Andy Jost 27 May '19

27 May '19

I can define an empty data type in Curry, e.g.: data A The built-in types such as Char, Int and Float are defined this way in the Prelude. Prior to the introduction of typeclasses the Curry frontend would translate this to a FlatCurry Type with no constructors. Newer versions produce a type with one constructor named "_Constr#A". I'd like to understand how to interpret this. Is the above legal Curry? Is this perhaps a forward declaration or opaque type? Can the type, A, be defined later? If so, would it have to be defined in the same module? Is this documented somewhere? I'm tempted to reject such a declaration unless the system can find a built-in definition but I don't want to reject legal programs. -Andy

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Final Call for Papers - PPDP 2019
by Michael Hanus 14 Apr '19

14 Apr '19

On behalf of the PC chair: ====================================================================== FINAL CALL FOR PAPERS -- PPDP 2019 21st International Symposium on Principles and Practice of Declarative Programming 7–9 October 2019, Porto, Portugal Collocated with FM'19 http://ppdp2019.macs.hw.ac.uk ====================================================================== Important Dates --------------- Title and abstract registration 26 April 2019 (AoE) Paper submission 3 May 2019 (AoE) Rebuttal period (48 hours) 3 June 2019 (AoE) Author notification 14 June 2019 Final paper version 15 July 2019 Conference 7–9 October 2019 About PPDP ---------- The PPDP 2019 symposium brings together researchers from the declarative programming communities, including those working in the functional, logic, answer-set, and constraint handling programming paradigms. The goal is to stimulate research in the use of logical formalisms and methods for analyzing, performing, specifying, and reasoning about computations, including mechanisms for concurrency, security, static analysis, and verification. Invited Speakers ---------------- Amal Ahmed Northeastern University, USA Title: TBA Naoki Kobayashi The University of Tokyo, Japan Title: 10 Years of the Higher-Order Model Checking Project Scope ----- Submissions are invited on all topics related to declarative programming, from principles to practice, from foundations to applications. Topics of interest include, but are not limited to - Language Design: domain-specific languages; interoperability; concurrency, parallelism, and distribution; modules; probabilistic languages; reactive languages; database languages; knowledge representation languages; languages with objects; language extensions for tabulation; metaprogramming. - Implementations: abstract machines; interpreters; compilation; compile-time and run-time optimization; memory management. - Foundations: types; logical frameworks; monads and effects; semantics. - Analysis and Transformation: partial evaluation; abstract interpretation; control flow; data flow; information flow; termination analysis; resource analysis; type inference and type checking; verification; validation; debugging; testing. - Tools and Applications: programming and proof environments; verification tools; case studies in proof assistants or interactive theorem provers; certification; novel applications of declarative programming inside and outside of CS; declarative programming pearls; practical experience reports and industrial application; education. Submission Categories --------------------- Submissions can be made in three categories: regular Research Papers, System Descriptions, and Experience Reports. Submissions of Research Papers must present original research which is unpublished and not submitted elsewhere. They must not exceed 12 pages ACM style 2-column (including figures, but excluding bibliography). Work that already appeared in unpublished or informally published workshop proceedings may be submitted (please contact the PC chair in case of questions). Research papers will be judged on originality, significance, correctness, clarity, and readability. Submission of System Descriptions must describe a working system whose description has not been published or submitted elsewhere. They must not exceed 10 pages and should contain a link to a working system. System Descriptions must be marked as such at the time of submission and will be judged on originality, significance, usefulness, clarity, and readability. Submissions of Experience Reports are meant to help create a body of published, refereed, citable evidence where declarative programming such as functional, logic, answer-set, constraint programming, etc., is used in practice. They must not exceed 5 pages **including references**. Experience Reports must be marked as such at the time of submission and need not report original research results. They will be judged on significance, usefulness, clarity, and readability. Supplementary material may be provided in a clearly marked appendix beyond the above-mentioned page limits. Reviewers are not required to study any material beyond the respective page limit. Format of a Submission ---------------------- For each paper category, you must use the most recent version of the "Current ACM Master Template" which is available at <https://www.acm.org/publications/proceedings-template>. The most recent version at the time of writing is 1.48. You must use the LaTeX sigconf proceedings template as the conference organizers are unable to process final submissions in other formats. In case of problems with the templates, contact ACM's TeX support team at Aptara <acmtexsupport(a)aptaracorp.com <mailto:acmtexsupport@aptaracorp.com>>. Authors should note ACM's statement on author's rights (http://authors.acm.org/) which apply to final papers. Submitted papers should meet the requirements of ACM's plagiarism policy (http://www.acm.org/publications/policies/plagiarism_policy). Requirements for Publication ---------------------------- At least one author of each accepted submission will be expected to attend and present the work at the conference. The pc chair may retract a paper that is not presented. The pc chair may also retract a paper if complaints about the paper's correctness are raised which cannot be resolved by the final paper deadline. Program Committee Chair ----------------------- Ekaterina Komendantskaya Heriot-Watt University, UK Program Committee ----------------- Henning Basold, CNRS, ENS de Lyon, France Jasmin Christian Blanchette, Vrije Universiteit Amsterdam, The Netherlands Maria Paola Bonacina, Università degli Studi di Verona, Italy Dmitry Boulytchev, JetBrains Research, Russia William Byrd, University of Alabama at Birmingham, USA Ornela Dardha, University of Glasgow, UK Marco Gaboardi, University at Buffalo, SUNY, USA Arie Gurfinkel, University of Waterloo, Canada Zhenjiang Hu, National Institute of Informatics, Japan Moa Johansson, Chalmers University of Technology, Sweden Neelakantan Krishnaswami, University of Cambridge, UK Ralf Lämmel, University of Koblenz · Landau, Germany Anthony Widjaja Lin, Technische Universität Kaiserslautern, Germany Christopher Mieklejohn, Carnegie Mellon University, USA Aart Middeldorp, University of Innsbruck, Austria Gopalan Nadathur, University of Minnesota, USA Keisuke Nakano, Tohoku University, Japan Dominic Orchard, University of Kent, UK Alberto Pardo, University of the Republic, Uruguay Aleksy Schubert, University of Warsaw, Poland Peter J. Stuckey, The University of Melbourne, Australia Tarmo Uustalu, Reykjavik University, Iceland Local Chair ----------- José Nuno Oliveira INESC TEC & University of Minho, Portugal For any queries about local issues please contact the local organiser, José Nuno Oliveira <jno(a)di.uminho.pt <mailto:jno@di.uminho.pt>>. Untitled Document ------------------------------------------------------------------------ */Heriot-Watt University is The Times & The Sunday Times International University of the Year 2018/* Founded in 1821, Heriot-Watt is a leader in ideas and solutions. With campuses and students across the entire globe we span the world, delivering innovation and educational excellence in business, engineering, design and the physical, social and life sciences. This email is generated from the Heriot-Watt University Group, which includes: 1. Heriot-Watt University, a Scottish charity registered under number SC000278 2. Edinburgh Business School a Charity Registered in Scotland, SC026900. Edinburgh Business School is a company limited by guarantee, registered in Scotland with registered number SC173556 and registered office at Heriot-Watt University Finance Office, Riccarton, Currie, Midlothian, EH14 4AS 3. Heriot- Watt Services Limited (Oriam), Scotland's national performance centre for sport. Heriot-Watt Services Limited is a private limited company registered is Scotland with registered number SC271030 and registered office at Research & Enterprise Services Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS. The contents (including any attachments) are confidential. If you are not the intended recipient of this e-mail, any disclosure, copying, distribution or use of its contents is strictly prohibited, and you should please notify the sender immediately and then delete it (including any attachments) from your system.

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Lots of problems with cypm
by Andy Jost 04 Apr '19

04 Apr '19

I've had nothing but trouble with cypm. It seems to be required for a certain package I want to use, but even the most basic commands fail, e.g.: % cypm update fatal: destination path '.' already exists and is not an empty directory. CRITICAL Failed to update git repository, return code 128 Others are able to build the package in question, so I'd like to start over. I'd like to remove all traces of cypm and even Curry (pakcs, kics2) from my system (Ubuntu) and start from scratch. How should I go about doing that? Or are there other recommendations for how to approach this. -Andy

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2nd CFP WFLP
by Herbert Kuchen 02 Apr '19

02 Apr '19

========================================================= WFLP 2019: Call for Papers ========================================================= 27th International Workshop on Functional and (Constraint) Logic Programming Cottbus, Germany, September 9-13, 2019 (part of Declare 2019; co-located with INAP and WLP) Important Dates Abstract submission: May 27, 2019 Paper submission: June 3, 2019 Notification of acceptance: July 1, 2019 Camera-ready papers: July 29, 2019 Early registration: August 12, 2019 Online Registration: September 2, 2019 Workshop: September 9-13, 2019 WFLP 2019 The international Workshop on Functional and (constraint) Logic Programming (WFLP) aims at bringing together researchers, students, and practitioners interested in functional programming, logic programming, and their integration. WFLP has a reputation for being a lively and friendly forum, and it is open for presenting and discussing work in progress, technical contributions, experience reports, experiments, reviews, and system descriptions. The 27th International Workshop on Functional and (Constraint) Logic Programming (WFLP 2019) will be held at the Brandenburgische Technische Universität Cottbus Germany. Previous WFLP editions were WFLP 2018 (Frankfurt am Main, Germany), WFLP 2017 (Würzburg, Germany), WFLP 2016 (Leipzig, Germany), WFLP 2014 (Wittenberg, Germany), WFLP 2013 (Kiel, Germany), WFLP 2012 (Nagoya, Japan), WFLP 2011 (Odense, Denmark), WFLP 2010 (Madrid, Spain), WFLP 2009 (Brasilia, Brazil), WFLP 2008 (Siena, Italy), WFLP 2007 (Paris, France), WFLP 2006 (Madrid, Spain), WCFLP 2005 (Tallinn, Estonia), WFLP 2004 (Aachen, Germany), WFLP 2003 (Valencia, Spain), WFLP 2002 (Grado, Italy), WFLP 2001 (Kiel, Germany), WFLP 2000 (Benicassim, Spain), WFLP'99 (Grenoble, France), WFLP'98 (Bad Honnef, Germany), WFLP'97 (Schwarzenberg, Germany), WFLP'96 (Marburg, Germany), WFLP'95 (Schwarzenberg, Germany), WFLP'94 (Schwarzenberg, Germany), WFLP'93 (Rattenberg, Germany), and WFLP'92 (Karlsruhe, Germany). WFLP 2019 will be part of DECLARE 2019 and hence be co-located with INAP 2019 (International Conference on Applications of Declarative Programming and Knowledge Management), WLP 2019 (Workshop on (Constraint) Logic Programming), and QuaProL 2019 (Quantum and Probability Logic). Topics The topics of interest cover all aspects of functional and logic programming. They include (but are not limited to): * Functional programming * Logic programming * Constraint programming * Deductive databases, data mining * Extensions of declarative languages, objects * Multi-paradigm declarative programming * Foundations, semantics, non-monotonic reasoning, dynamics * Parallelism, concurrency * Program analysis, abstract interpretation * Program and model manipulation * Program transformation, partial evaluation, meta-programming * Specification, * Verification * Debugging * Testing * Knowledge representation, machine learning * Interaction of declarative programming with other formalisms * Implementation of declarative languages * Advanced programming environments and tools * Software techniques for declarative programming * Applications The primary focus is on new and original research results, but submissions describing innovative products, prototypes under development, application systems, or interesting experiments (e.g., benchmarks) are also encouraged. Survey papers that present some aspects of the above topics from a new perspective, and experience reports are also welcome. Papers must be written and presented in English. Work that already appeared in unpublished or informally published workshop proceedings may be submitted (please contact the PC chair in case of questions). Submission Guidelines Submission is via the Easychair submission website for WFLP 2019: https://easychair.org/conferences/?conf=wflp2019 Authors are invited to submit papers in the following categories: + Regular research paper + Work-in-progress report + System description Regular research papers must describe original work, be written and presented in English, and must not substantially overlap with papers that have been formally published or that are simultaneously submitted to a journal, conference, or workshop with formal proceedings. They will be judged on the basis of significance, relevance, correctness, originality, and clarity. For work-in-progress reports and system descriptions, less formal rules apply, and presentation-only submissions (talk and discussion, but no paper in the formal proceedings) are possible. Please contact the PC chair with any questions. All submissions must be formatted in the Lecture Notes in Computer Science style. Submissions cannot exceed 15 pages including references but excluding well-marked appendices not intended for publication. Reviewers are not required to read the appendices, and thus papers should be intelligible without them. However, all submissions (especially work-in-progress reports and system descriptions) may be considerably shorter than 15 pages. Proceedings All papers accepted for presentation at the conference will be published in informal proceedings publicly available at the Computing Research Repository. According to the program committee reviews, submissions can be directly accepted for publication in the formal post-conference proceedings. The formal post-conference proceedings will be published in both electronic and paper formats by Springer in the Lecture Notes in Computer Science series. After the conference, all authors accepted only for presentation will be invited to revise and/or extend their submissions in the light of the feedback solicited at the conference. Then, after another round of reviewing, these revised papers may also be published in the formal proceedings. Therefore, all accepted papers will be published in open-access, and the authors can also decide to publish their work in the Springer LNCS formal proceedings. Program Committee Maria Alpuente Frasnedo, Universitat Politècnica de València, Spain Sergio Antoy, Portland State University, USA Olaf Chitil, University of Kent, UK Sandra Dylus, University of Kiel, Germany Moreno Falaschi, U. Siena, Italy Michael Hanus, University of Kiel, Germany Herbert Kuchen, University of Münster, Germany (Chair) Julio Mariño Carballo, Universidad Politécnica de Madrid, Spain Manuel Montenegro Montes, Universidad Complutense de Madrid, Spain Kostis Sagonas, Uppsala University, Sweden Sibylle Schwarz, HTWK Leipzig, Germany Dietmar Seipel, University of Würzburg, Germany Josep Silva Galiana, Universitat Politècnica de València, Spain Johannes Waldmann, HTWK Leipzig, Germany Organizing Committee Petra Hofstedt (General Chair), Brandenburg University of Technology, Cottbus, Germany

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CfP: WLP 2019 - 33rd Workshop on (Constraint) Logic Programming
by Petra Hofstedt (BTU) 04 Feb '19

04 Feb '19

========================================================= WLP 2019: Call for Papers ========================================================= 33rd Workshop on (Constraint) Logic Programming Cottbus, Germany, September 9-13, 2019 (part of Declare 2019; co-located with INAP, WFLP, and QPLogic) Important Dates Abstract submission: May 27, 2019 Paper submission: June 3, 2019 Notification of acceptance: July 1, 2019 Camera-ready papers: July 29, 2019 Early registration: August 12, 2019 Online Registration: September 2, 2019 Workshop: September 9-13, 2019 WLP 2019 The workshops on (constraint) logic programming serve as the scientific forum of the annual meeting of the Society of Logic Programming (GLP, Gesellschaft fuer Logische Programmierung e.V.). They bring together researchers (not only from Germany) interested in logic programming, constraint programming, and related areas like databases, artificial intelligence, and operations research. Previous workshops have been held in Germany, Austria, Switzerland, Egypt, Japan, Denmark, Spain, Brazil, Italy, and France. Contributions are welcome on all theoretical, experimental, and application aspects of logic and constraint logic programming. The topics include, but are not limited to the following areas: + Logic and Constraint Logic Programming Languages and Extensions + Knowledge Representation and Non-monotonic Reasoning + Applications and Application Areas of (C)LP + Implementations WLP 2019 will be part of DECLARE 2019 and hence be co-located with INAP 2019 (International Conference on Applications of Declarative Programming and Knowledge Management), WFLP 2019 (International Workshop on Functional and Logic Programming), and QPLogic 2019 (Quantum and Probability Logic). Submission Guidelines Authors are invited to submit long papers (no longer than 15 pages) or short papers (no longer than 6 pages) in the following categories: + Regular research papers + Application papers + System descriptions We also encourage submissions on ongoing work of PhD students (no longer than 6 pages). Submissions must be unpublished original work and not submitted for publication elsewhere. However, work that already appeared in informally published workshop proceedings may be submitted too. All papers will be judged on the basis of significance, relevance, correctness, originality, and clarity. All submissions must be formatted in the Lecture Notes in Computer Science style. For further information on the submission procedure, please, visit the conference web site: declare19.de Proceedings All papers accepted for presentation at the conference will be published in informal proceedings publicly available at the Computing Research Repository. According to the program committee reviews, submissions can be directly accepted for publication in the formal post-conference proceedings. The formal post-conference proceedings will be published in both electronic and paper formats by Springer in the Lecture Notes in Computer Science series. After the conference, all authors accepted only for presentation will be invited to revise and/or extend their submissions in the light of the feedback solicited at the conference. Then, after another round of reviewing, these revised papers may also be published in the formal proceedings. All accepted papers will be presented during the conference. At least one author of an accepted contribution is expected to register for the conference and present the paper. Program Committee Slim Abdennadher (German University in Cairo, Egypt) Christoph Beierle (FernUniversität in Hagen, Germany) Thomas Eiter (Vienna University of Technology, Austria) Daniel Gall (University of Ulm, Germany) Ulrich Geske (University of Potsdam, Germany) Michael Hanus (University of Kiel, Germany) Petra Hofstedt (BTU Cottbus - Senftenberg, Germany) (co-Chair) Steffen Hölldobler (TU Dresden, Germany) Tomi Jahunen (Aalto University, Finland) Ulrich John (hwtk Berlin) (co-Chair) Ke Liu (BTU Cottbus - Senftenberg, Germany) Sven Löffler (BTU Cottbus - Senftenberg, Germany) Falco Nogatz (University of Würzburg, Germany) Torsten Schaub (University of Potsdam, Germany) Sibylle Schwarz (HTWK Leipzig, Germany) Dietmar Seipel (University of Würzburg, Germany) Hans Tompits (Vienna University of Technology, Austria) Janis Voigtländer (Universität Duisburg-Essen, Germany) Armin Wolf (Fraunhofer FOKUS Berlin, Germany) Organizing Committee Petra Hofstedt (General Chair), Sven Löffler, Katrin Ebert, Brandenburg University of Technology, Cottbus, Germany

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CfP: INAP 2019 - 22nd International Conference on Applications of Declarative Programming and Knowledge Management
by Petra Hofstedt (BTU) 04 Feb '19

04 Feb '19

========================================================= INAP 2019: Call for Papers ========================================================= 22nd International Conference on Applications of Declarative Programming and Knowledge Management Cottbus, Germany, September 9-13, 2019 (part of Declare 2019; co-located with WFLP, WLP, and QPLogic) Important Dates Paper registration: May 27, 2019 Paper submission: June 3, 2019 Notification of acceptance: July 1, 2019 Camera-ready papers: July 29, 2019 Early registration: August 12, 2019 Online Registration: September 2, 2019 Conference: September 9-13, 2019 INAP 2019 INAP is a forum for intensive discussion of applications of important technologies around declarative programming, constraint problem solving, and related computing paradigms. It comprehensively covers the impact of data and knowledge engineering, programmable logic solvers in the internet society, its underlying technologies, and leading edge applications in industry, commerce, government, and societal services. Previous INAP conferences have been held in Japan, Germany, Portugal, and Austria. We invite high quality contributions on the described topics, especially, but not exclusively, on different aspects of declarative programming, constraint processing, data and knowledge management, as well as their use for distributed systems and the web: * data and knowledge engineering / management: deductive databases, rule bases, decision support, expert systems, knowledge discovery; * declarative programming: logic programming, nonmonotonic reasoning, knowledge representation, domain-specific languages; * constraints: constraint systems, (extensions of) constraint (logic) programming, constraint-based modeling and applications; * distributed systems and the web: agents and concurrent engineering, ontologies, semantic web, internet of things; * practical systems: tools for academic and industrial use, knowledge-based web services, logic solvers and applications; * multi-paradigm programming. INAP 2019 will be part of DECLARE 2019 and hence be co-located with WFLP 2019 (International Workshop on Functional and Logic Programming), WLP 2019 (Workshop on (Constraint) Logic Programming), and QPLogic 2019 (Quantum and Probability Logic). Submission Guidelines Authors are invited to submit long papers (no longer than 15 pages) or short papers (no longer than 6 pages) in the following categories: + Regular research papers + Application papers + System descriptions We also encourage submissions on ongoing work of PhD students (no longer than 6 pages). Submissions must be unpublished original work and not submitted for publication elsewhere. However, work that already appeared in informally published workshop proceedings may be submitted too. All papers will be judged on the basis of significance, relevance, correctness, originality, and clarity. All submissions must be formatted in the Lecture Notes in Computer Science style. For further information on the submission procedure, please, visit the conference web site: declare19.de Proceedings All papers accepted for presentation at the conference will be published in informal proceedings publicly available at the Computing Research Repository. According to the program committee reviews, submissions can be directly accepted for publication in the formal post-conference proceedings. The formal post-conference proceedings will be published in both electronic and paper formats by Springer in the Lecture Notes in Computer Science series. After the conference, all authors accepted only for presentation will be invited to revise and/or extend their submissions in the light of the feedback solicited at the conference. Then, after another round of reviewing, these revised papers may also be published in the formal proceedings. All accepted papers will be presented during the conference. At least one author of an accepted contribution is expected to register for the conference and present the paper. Program Committee Salvador Abreu (Universidade de Évora, Portugal) Christoph Beierle (FernUniversität in Hagen, Germany) François Bry (Ludwig-Maximilian-University of Munich, Germany) Vitor Santos Costa (University of Porto, Portugal) Thom Frühwirth (University of Ulm, Germany) Ulrich Geske (University of Potsdam, Germany) Gopal Gupta (UT Dallas, USA) Michael Hanus (University of Kiel, Germany) Petra Hofstedt (BTU Cottbus - Senftenberg, Germany) (Chair) Tomi Jahunen (Aalto University, Finland) Gabriele Kern-Isberner (TU Dortmund University, Germany) Herbert Kuchen (University of Münster, Germany) Sven Löffler (BTU Cottbus - Senftenberg, Germany) Vitor Beires Nogueira (Universidade de Évora, Portugal) Ricardo Rocha (University of Porto, Portugal) Dietmar Seipel (University of Würzburg, Germany) Helmut Simonis (University College Cork, Ireland) Theresa Swift (Universidade Nova de Lisboa, Portugal) Hans Tompits (Vienna University of Technology, Austria) Masanobu Umeda (Kyushu Institute of Technology, Japan) Armin Wolf (Fraunhofer FOKUS Berlin, Germany) Track Chairs Salvador Abreu (Universidade de Évora) - Logic Programming and Extensions Dietmar Seipel (University of Würzburg) - (Deductive) Databases, Rule Bases, Decision Support, Expert Systems, Knowledge Discovery Petra Hofstedt (BTU Cottbus - Senftenberg) - Constraints, Constraint Solvers and Systems Organizing Committee Petra Hofstedt (General Chair), Sven Löffler, Katrin Ebert, Brandenburg University of Technology, Cottbus, Germany

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CfP: WFLP 2019 - 27th International Workshop on Functional and (Constraint) Logic Programming
by Michael Hanus 04 Feb '19

04 Feb '19

========================================================= WFLP 2019: Call for Papers ========================================================= 27th International Workshop on Functional and (Constraint) Logic Programming Cottbus, Germany, September 9-13, 2019 (part of Declare 2019; co-located with INAP, WLP, and QPLogic) Important Dates Abstract submission: May 27, 2019 Paper submission: June 3, 2019 Notification of acceptance: July 1, 2019 Camera-ready papers: July 29, 2019 Early registration: August 12, 2019 Online Registration: September 2, 2019 Workshop: September 9-13, 2019 WFLP 2019 The international Workshop on Functional and (constraint) Logic Programming (WFLP) aims at bringing together researchers, students, and practitioners interested in functional programming, logic programming, and their integration. WFLP has a reputation for being a lively and friendly forum, and it is open for presenting and discussing work in progress, technical contributions, experience reports, experiments, reviews, and system descriptions. The 27th International Workshop on Functional and (Constraint) Logic Programming (WFLP 2019) will be held at the Brandenburgische Technische Universität Cottbus Germany. Previous WFLP editions were WFLP 2018 (Frankfurt am Main, Germany), WFLP 2017 (Würzburg, Germany), WFLP 2016 (Leipzig, Germany), WFLP 2014 (Wittenberg, Germany), WFLP 2013 (Kiel, Germany), WFLP 2012 (Nagoya, Japan), WFLP 2011 (Odense, Denmark), WFLP 2010 (Madrid, Spain), WFLP 2009 (Brasilia, Brazil), WFLP 2008 (Siena, Italy), WFLP 2007 (Paris, France), WFLP 2006 (Madrid, Spain), WCFLP 2005 (Tallinn, Estonia), WFLP 2004 (Aachen, Germany), WFLP 2003 (Valencia, Spain), WFLP 2002 (Grado, Italy), WFLP 2001 (Kiel, Germany), WFLP 2000 (Benicassim, Spain), WFLP'99 (Grenoble, France), WFLP'98 (Bad Honnef, Germany), WFLP'97 (Schwarzenberg, Germany), WFLP'96 (Marburg, Germany), WFLP'95 (Schwarzenberg, Germany), WFLP'94 (Schwarzenberg, Germany), WFLP'93 (Rattenberg, Germany), and WFLP'92 (Karlsruhe, Germany). WFLP 2019 will be part of DECLARE 2019 and hence be co-located with INAP 2019 (International Conference on Applications of Declarative Programming and Knowledge Management), WLP 2019 (Workshop on (Constraint) Logic Programming), and QPLogic 2019 (Quantum and Probability Logic). Topics The topics of interest cover all aspects of functional and logic programming. They include (but are not limited to): * Functional programming * Logic programming * Constraint programming * Deductive databases, data mining * Extensions of declarative languages, objects * Multi-paradigm declarative programming * Foundations, semantics, non-monotonic reasoning, dynamics * Parallelism, concurrency * Program analysis, abstract interpretation * Program and model manipulation * Program transformation, partial evaluation, meta-programming * Specification, * Verification * Debugging * Testing * Knowledge representation, machine learning * Interaction of declarative programming with other formalisms * Implementation of declarative languages * Advanced programming environments and tools * Software techniques for declarative programming * Applications The primary focus is on new and original research results, but submissions describing innovative products, prototypes under development, application systems, or interesting experiments (e.g., benchmarks) are also encouraged. Survey papers that present some aspects of the above topics from a new perspective, and experience reports are also welcome. Papers must be written and presented in English. Work that already appeared in unpublished or informally published workshop proceedings may be submitted (please contact the PC chair in case of questions). Submission Guidelines Submission is via Easychair submission website for WFLP 2019: https://easychair.org/conferences/?conf=wflp2019 Authors are invited to submit papers in the following categories: + Regular research paper + Work-in-progress report + System description Regular research papers must describe original work, be written and presented in English, and must not substantially overlap with papers that have been formally published or that are simultaneously submitted to a journal, conference, or workshop with formal proceedings. They will be judged on the basis of significance, relevance, correctness, originality, and clarity. For work-in-progress reports and system descriptions, less formal rules apply, and presentation-only submissions (talk and discussion, but no paper in the formal proceedings) are possible. Please contact the PC chair with any questions. All submissions must be formatted in the Lecture Notes in Computer Science style. Submissions cannot exceed 15 pages including references but excluding well-marked appendices not intended for publication. Reviewers are not required to read the appendices, and thus papers should be intelligible without them. However, all submissions (especially work-in-progress reports and system descriptions) may be considerably shorter than 15 pages. Proceedings All papers accepted for presentation at the conference will be published in informal proceedings publicly available at the Computing Research Repository. According to the program committee reviews, submissions can be directly accepted for publication in the formal post-conference proceedings. The formal post-conference proceedings will be published in both electronic and paper formats by Springer in the Lecture Notes in Computer Science series. After the conference, all authors accepted only for presentation will be invited to revise and/or extend their submissions in the light of the feedback solicited at the conference. Then, after another round of reviewing, these revised papers may also be published in the formal proceedings. Therefore, all accepted papers will be published in open-access, and the authors can also decide to publish their work in the Springer LNCS formal proceedings. Program Committee Maria Alpuente Frasnedo, Universitat Politècnica de València, Spain Sergio Antoy, Portland State University, USA Olaf Chitil, University of Kent, UK Sandra Dylus, University of Kiel, Germany Moreno Falaschi, U. Siena, Italy Michael Hanus, University of Kiel, Germany Herbert Kuchen, University of Münster, Germany (Chair) Julio Mariño Carballo, Universidad Politécnica de Madrid, Spain Manuel Montenegro Montes, Universidad Complutense de Madrid, Spain Kostis Sagonas, Uppsala University, Sweden Sibylle Schwarz, HTWK Leipzig, Germany Dietmar Seipel, University of Würzburg, Germany Josep Silva Galiana, Universitat Politècnica de València, Spain Johannes Waldmann, HTWK Leipzig, Germany Organizing Committee Petra Hofstedt (General Chair), Sven Löffler, Katrin Ebert, Brandenburg University of Technology, Cottbus, Germany

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pakcs installation gave "inappropriate ioctl" error; I tried to rebuild `pakcs`; now I can't even build `pakcs`
by Jeffrey Brown 03 Dec '18

03 Dec '18

[This email is duplicated in markdown form here <https://github.com/JeffreyBenjaminBrown/curry-studies/blob/9ce2c82c4649835c…> [0].] `pakcs` started giving me this error, no matter where I ran it from: jeff@jeff-inspiron-2017:~/logic/curry/rslt$ pakcs [FATAL ERROR: at Sun Dec 2 17:07:26 2018 Could not open resource database "/home/jeff/logic/curry/install/pakcs-2.0.2/bin/cypm": Inappropriate ioctl for device] jeff@jeff-inspiron-2017:~/logic/curry/rslt$ cd .. After installing `pakcs` (from `pakcs-2.0.2-amd64-Linux.tar.gz`), I had made a copy of the folder. I figured the original must have got corrupted, so I deleted it and replaced it with the copy that I made after first installing. I still got the same "inappropriate ioctl" error. So I tried running `make` again, without first running `make clean`. I got this error <https://github.com/JeffreyBenjaminBrown/curry-studies/blob/a59cf8ee1a6d469d…> [1]. Then I ran `make clean`, and got no apparent errors <https://github.com/JeffreyBenjaminBrown/curry-studies/blob/a59cf8ee1a6d469d…> [2]. But I still can't `make` the project <https://github.com/JeffreyBenjaminBrown/curry-studies/blob/a59cf8ee1a6d469d…> [3]. [0] https://github.com/JeffreyBenjaminBrown/curry-studies/blob/9ce2c82c4649835c… [1] https://github.com/JeffreyBenjaminBrown/curry-studies/blob/a59cf8ee1a6d469d… [2] https://github.com/JeffreyBenjaminBrown/curry-studies/blob/a59cf8ee1a6d469d… [3] https://github.com/JeffreyBenjaminBrown/curry-studies/blob/a59cf8ee1a6d469d… -- Jeff Brown | Jeffrey Benjamin Brown Website <https://msu.edu/~brown202/> | Facebook <https://www.facebook.com/mejeff.younotjeff> | LinkedIn <https://www.linkedin.com/in/jeffreybenjaminbrown>(spammy, so I often miss messages here) | Github <https://github.com/jeffreybenjaminbrown>

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Haskell-related summer internship in Germany
by Finn Teegen 30 Nov '18

30 Nov '18

Our department (PL and compiler construction) again offers a summer internship in 2019 sponsored by DAAD Rise Germany [1]. Undergraduate students enrolled at North American, British and Irish universities are eligible to make an application. We'd be very happy to host a motivated student, who is keen to improve our compiler for the functional logic programming language Curry in terms of performance. For more information you may have a look at our project poster [2]. If you have any questions, feel free to mail any of the contact persons. Please also spread the news to your students and classmates. Cheers, Sandra and Finn [1]: https://www.daad.de/rise/en/rise-germany/ [2]: https://www-ps.informatik.uni-kiel.de/~sad/DAADRise.pdf

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