Datalog ã«å…¥é–€ã™ã‚‹ - プãƒã‚°ãƒ©ãƒ を自動生æˆã—ãŸã„
ã¨ã‚ã‚‹è«–æ–‡ãŒãƒ‡ãƒ¼ã‚¿ã®ã‚¹ã‚ーマ変æ›ã‚’è¡Œã†ãŸã‚ã« Datalog を用ã„ã¦ã„ãŸã€‚Prolog ã¯è§¦ã£ãŸã“ã¨ã‚ã‚‹ã—ã€Datalog ã£ã¦è¨€è‘‰ã‚‚èžã„ãŸã“ã¨ã¯ã‚ã£ãŸãŒã€å…·ä½“çš„ã«ã©ã‚“ãªè¨€èªžã§ä½•ãŒå¬‰ã—ã„ã®ã‹çŸ¥ã‚‰ãªã‹ã£ãŸã®ã§ã¡ã‚‡ã£ã¨èª¿ã¹ã¦ã¿ãŸã€‚ ã¤ã„ã§ã« Datalog ã®ã‚¤ãƒ³ãƒ—リタã¨ã—㦠Soufflé ã¨ã„ã†å‡¦ç†ç³»ã‚‚触ã£ã¦ã¿ãŸã€‚ Datalog ã¨ã¯ Datalog ã¯ã€è«–ç†åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã§ã‚ã‚‹ Prolog ã®ã‚µãƒ–セットã§ã‚ã‚Šã€ä¸»ã«æ¼”繹データベースã®ã‚¯ã‚¨ãƒªè¨€èªžã¨ã—ã¦ç”¨ã„られる。クエリã¯è«–ç†çš„ãªåˆ¶ç´„ã¨ã—ã¦è¨˜è¿°ã•ã‚Œã€ãã®åˆ¶ç´„を満ãŸã™ãƒ‡ãƒ¼ã‚¿ã‚’データベースã‹ã‚‰æŠ½å‡ºã™ã‚‹ã€‚最近ã§ã¯ Datomic ã®ã‚ˆã†ãªåˆ†æ•£ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®ã‚¯ã‚¨ãƒªè¨€èªžã¨ã—ã¦ã‚‚用ã„られã¦ã„る。 Datalog ã¨ã—ã¦æ¨™æº–化ã•ã‚ŒãŸè¨€èªžãŒè¨€èªžä»•æ§˜ãŒã‚ã‚‹ã‚ã‘ã§ã¯ãªãã€å‡¦ç†ç³»ã«ã‚ˆã£ã¦æ§‹æ–‡ãŒç•°ãªã£ã¦ã„ãŸã‚Šã€ç‹¬è‡ªã®æ‹¡å¼µãŒã•ã‚Œã¦ã„ãŸã‚Šã™ã‚‹ã€‚ãŸã¨ãˆã°ã€é›†ç´„
WebAssemblyã§Prolog
メリクリï¼ã“ã‚Œã¯Prolog Advent Calendarã®ï¼‘日目（😅）ã®è¨˜äº‹ã§ã™ã€‚最近Trealla Prologã¨ã„ã†PrologインタプリタをWASM化ã—ãŸã®ã§ç´¹ä»‹ã—よã†ã¨æ€ã„ã¾ã™ã€‚ Prologã«ã¤ã„㦠Prologã¨ã¯è«–ç†ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã®ï¼‘ã¤ã§ã™ã€‚è«–ç†ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã¯ã‹ãªã‚Šç‰¹æ®Šã§ã€ã€Œãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžãªã‚“ã¦å…¨éƒ¨ä¸€ç·’ã§ã—ょã€ã¨ã„ã†äººã¯è«–ç†ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã‚’絶対ã«ä½¿ã£ãŸã“ã¨ãªã„ã§ã™ï¼ˆç¬‘）。手続ãåž‹ã£ã½ã„ã“ã¨ã¯å‡ºæ¥ãªãã¯ãªã„ã§ã™ãŒã€ä¸»ã«é–¢é€£æ€§ã‚„è«–ç†çš„ãªæ¡ä»¶ã‚’宣言ã—ã¦ã€ã‚¯ã‚¨ãƒªã‚’投ã’ã‚‹æ„Ÿã˜ã®ä½¿ã„æ–¹ã«ãªã‚Šã¾ã™ã€‚å°‘ã—SQLã«ä¼¼ã¦ã„ã‚‹ãŒã€SQLã¨é•ã£ã¦åŒå›³åƒæ€§ãªã©ã‚’é‡è¦–ã—ã¦ã„ã¾ã™ã€‚ Trealla Prologã«ã¤ã„㦠Trealla Prologã¯Andrew Davisonæ°ã«ã‚ˆã‚‹MITライセンスã®Prologインタプリタã§ã™ã€‚ 特徴ã¨ã—ã¦ã¯ C製 (C99) ISO Prolog
表示的æ„味論ãŒã‚ã‹ã‚‰ãªã„ã®ã§ç°¡å˜ãªä¾‹ã‚’翻訳ã—ã¦ã¿ãŸã€‚ - Qiita
表示的æ„味論ã£ã¦ä½•ï¼Ÿ 日本語ã§ä¾‹ã‚’探ã™ã‚‚見ã¤ã‹ã‚‰ãªã‹ã£ãŸã€‚ 英語ã 㨠Denotational Semantics ã¨ã„ã†ã‚‰ã—ã„。 Denotational Semantics example ã§ã‚°ã‚°ã£ã¦ã¿ãŸã€‚ 見ã¤ã‹ã£ãŸã€‚ 眺ã‚ã¦ã¿ã‚ˆã†ã€‚ Denotational Semantics Establish the meaning of a program by specifying a meaning for each phrase of the Abstract Syntax Tree (AST). declarations commands expressions The mean of a phrase is defined by the meaning of each subphrase. The meaning is its denotation. Established by
アフィン型をPrologã§å®Ÿè£…ã—ã¦ã¿ãŸ - Qiita
ã“ã®è¨˜äº‹ã¯è¨€èªžå®Ÿè£… Advent Calendar 2020ã®16日目ã®è¨˜äº‹ã§ã™ã€‚ Prologã«æ…£ã‚Œã¦ã„ãªã„人ã®ãŸã‚ã«Prologã§ã®å˜ç›¸ã®åž‹ã‚·ã‚¹ãƒ†ãƒ を示ã—ã€ç·šå½¢åž‹ã‚·ã‚¹ãƒ†ãƒ ã§ã‚ã‚‹System-Fo(Fãƒãƒƒãƒ—)ãŠã‚ˆã³ã‚¢ãƒ•ã‚£ãƒ³åž‹ã‚·ã‚¹ãƒ†ãƒ System-Fa(Fアフィン)を実装例を示ã—ã¾ã™ã€‚ アフィン型システムã¨ã„ã†ã¨Rustã®ã‚ªãƒ¼ãƒŠãƒ¼ã‚·ãƒƒãƒ—ã®åž‹ã‚·ã‚¹ãƒ†ãƒ ãŒè¿‘ã„ã®ã§ã™ãŒã€Rustã®ã‚ˆã†ãªåž‹ã‚·ã‚¹ãƒ†ãƒ ã®æœ¬è³ªçš„部分をå–り出ã—ã¦å®Ÿè£…ã—ãŸã‚‚ã®ãŒã‚¢ãƒ•ã‚£ãƒ³åž‹ã‚·ã‚¹ãƒ†ãƒ ã§ã™ã€‚難解ãªåž‹ã‚·ã‚¹ãƒ†ãƒ ã®æ•°å¼ã¯å«ŒãŒã‚‰ã›ã®ã‚ˆã†ã«æ„Ÿã˜ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã€Prologを使ãˆã°å®Ÿéš›ã«å‹•ã‹ã›ã‚‹ã®ã§ã‚ˆã‚Šç†è§£ã—ã‚„ã™ã„ã‚‚ã®ã«ãªã£ã¦ã„ã‚‹ã¯ãšã§ã™ã€‚ 1. å˜ç›¸åž‹ã‚·ã‚¹ãƒ†ãƒ ã¨let多相型システムã¾ãšã¯ã€Prologã§å˜ç´”ãªåž‹æŽ¨è«–を作ã£ã¦ã¿ã¾ã™: % simple.pl :- op(500,yfx,$),op(600,xfy,:),op(600,xf
GitHub - mthom/scryer-prolog: A modern Prolog implementation written mostly in Rust.
Extend Scryer Prolog to include the following, among other features: call/N as a built-in meta-predicate. ISO Prolog compliant throw/catch. Built-in and user-defined operators of all fixities, with custom associativity and precedence. Bignum, rational number and floating point arithmetic. Built-in control operators (,, ;, ->, etc.). A revised, not-terrible module system. Built-in predicates for li
ãƒã‚¸ãƒãƒ³ã§Prologプãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã—ã¦ã¿ãŸï¼ - Qiita
ãƒã‚¸ãƒãƒ³ã®ç´¹ä»‹ 今回発表ã™ã‚‹è¨€èªžã¯ãƒã‚¸ãƒãƒ³ã¨ã„ã†è¨€èªžã§ã™ã€‚ èžã„ãŸã“ã¨ãŒãªã„ã‹ã‚‚ã—ã‚Œãªã„ã®ã§ã€ã¾ãšã¯ãã®ç´¹ä»‹ã‹ã‚‰ã§ã™ã€‚ ãƒã‚¸ãƒãƒ³ã¨ã„ã†ã®ã¯ã€å…ƒã€…ã€åŸºæœ¬çš„ã«äººé–“ãŒè©±ã™ãŸã‚ã«ä½œã‚‰ã‚ŒãŸäººå·¥ã®è¨€èªžã§ã™ã€‚ 最åˆã¯ã‚µãƒ”ã‚¢ï¼ã‚¦ã‚©ãƒ¼ãƒ•ã®ä»®èª¬ã¨ã„ã†è¨€èªžå¦ä¸Šã®å•é¡Œã‚’検証ã™ã‚‹ãŸã‚ã«ä½œã‚‰ã‚ŒãŸè¨€èªžã§ã™ãŒã€å…ƒã€…言語å¦è€…ãŒä½œã£ãŸä¸‹æ•·ãã‹ã‚‰ã‚¹ã‚¿ãƒ¼ãƒˆã—ã¦ã„ã‚‹ã®ã§ã€è‰²ã€…ã¨é¢ç™½ã„性質ãŒã‚ã‚Šã¾ã™ã€‚ 例ãˆã°ä¸‹ã®æ§˜ãªæ„Ÿã˜ã§ã™ã€‚ 音ä¸å¿ƒã§è¨è¨ˆã•ã‚Œã¦ã„ã¦ã€åŒéŸ³ç•°ç¾©èªžãŒåŽŸç†ä¸Šå˜åœ¨ã—ãªã„ 文法ãŒåŽ³æ ¼ã«æ±ºã‚られã¦ã„ã¦ã€æ§‹é€ ã«æ›–昧ã•ãŒè¡¨ã‚Œãªã„ 一階述語論ç†ã‚’ベースã«çµ„ã¿ç«‹ã¦ã‚‰ã‚Œã¦ã„ã‚‹ 文化éžä¾å˜ ã“ã®æ§˜ãªæ€§è³ªã‚’æŒã£ã¦ã„ã‚‹ã“ã¨ã‹ã‚‰ã€ãƒã‚¸ãƒãƒ³ã§è©±ã—ã‹ã‘ãŸã‚Šã€æ›¸ã‹ã‚ŒãŸã‚Šã—ãŸæ–‡ã¯ã€å‘½é¡Œã¨ã—ã¦ãƒ—ãƒã‚°ãƒ©ãƒ ãŒå®Ÿè¡Œå¯èƒ½ã¨ã„ã†æ€§è³ªã‚’æŒã£ã¦ã„ã¾ã™ã€‚ 特ã«æ—¥æœ¬èªžã‚„英語ã§ã¯æ ¹æœ¬ã«æŒã£ã¦ã„ã‚‹æ§‹é€ çš„ãªæ›–昧ã•ãŒç™ºç”Ÿã—ãªã„ã¨ã„ã†ã®ãŒå¤§ããã¦ã€æ—¥æœ¬èªžã§ã¯è§£æžä¸å¯èƒ½ãªé•·æ–‡ã§ã‚‚プãƒ
Prologã§æ§˜ã€…ãªå¤šç›¸åž‹æŽ¨è«– - Qiita
ã“ã®è¨˜äº‹ã¯æ™‚空を色々é¡ã£ã¦ã€2017å¹´ã®è¨€èªžå®Ÿè£…技術ã®12日目ã®è¨˜äº‹ã¨ã—ã¦æŠ•ç¨¿ã™ã‚‹ãŸã‚ã«è‰²ã€…ã¨æ›¸ãæ›ãˆã‚’ã—ãŸã‚‚ã®ã§ã™ã€‚ 11日目ã€16日目ã€20日目ã€21日目ã¨åž‹æŽ¨è«–ã®ã‚ªãƒ³ãƒ‘レードã®ã‚ˆã†ã«ãªã£ã¦ã„ã‚‹ã®ã§ã€Prologã®è¨˜äº‹ã‚‚åˆã‚ã›ã¦è¼‰ã›ãŸã„ã¨æ€ã„書ãæ›ãˆã¦æŠ•ç¨¿ã•ã›ã¦ã‚‚らã„ã¾ã™ã€‚ æ¦‚è¦ åž‹ç†è«–ã€æ“作的æ„味論ãªã©ã®ç†è«–ã§ã¯ä¸€èˆ¬çš„ã«ä¸€éšŽè¿°èªžè«–ç†ãŒåºƒã用ã„られã¦ã„ã¾ã™ãŒã€å¤šãã®ãƒ—ãƒã‚°ãƒ©ãƒžã«ã¨ã£ã¦é¦´æŸ“ã¿ãŒãªã難ã—ã„æ•°å¼ã«æ€ãˆã¾ã™ã€‚ Prologを使ã†ã“ã¨ã§ãã®å›³ã‚’ç°¡å˜ã«ç†è§£å¯èƒ½ã«ãªã‚Šã¾ã™ã€‚例ãˆã° Prolog ã§å¤šç›¸åž‹æŽ¨è«–を記述ã—㟠TIPER 1 ã§ç¤ºã•ã‚Œã¦ã„る環境をä¿å˜ã— copy_term 述語ã«ã‚ˆã£ã¦å…·ä½“化ã™ã‚‹æ‰‹æ³•ã‚’用ã„ã‚‹ã¨ã‚ãšã‹åæ•°è¡Œã§å¤šç›¸åž‹æŽ¨è«–を記述å¯èƒ½ã§ã™ã€‚(付録 A) ã—ã‹ã—ãªãŒã‚‰ã€ä¸€èˆ¬çš„ãªè¨€èªžã§ã®å®Ÿè£…ã‚’ã™ã‚‹ã«ã¯é£›èºãŒã‚ã‚Šã¾ã™ã€‚ãã“ã§ã“ã“ã§ã¯ã€è‡ªç”±åž‹å¤‰æ•°ã‚’求ã‚型スã‚ームを求ã‚ã‚‹Hin
Prolog ã§ç°¡å˜ã«è¨€èªžã‚’作ã£ã¦ã¿ã‚‹æ–¹æ³• - Qiita
æ¦‚è¦ ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã‚’ç°¡å˜ã«ä½œã‚‹ã“ã¨ã¯PrologãŒæœ‰ç”¨ã§ã‚ã‚‹ã“ã¨ã‚’示ã—ã€Prologã®ä½¿ã„方を説明ã—ã€å®Ÿéš›ã«Prologを使ã£ã¦ç°¡å˜ãªæ–‡æ³•å®šç¾©ã‚’è¡Œã„ã€ã‚¤ãƒ³ã‚¿ãƒ—リタを作りã€åž‹æ¤œæŸ»å™¨ã‚’作りã¾ã™ã€‚構文定義ã«ã¯æ£è¦æœ¨æ–‡æ³•ã®å®šç¾©ãƒ©ã‚¤ãƒ–ラリを示ã—ã¾ã™ã€‚ todo: パーサ作る必è¦ã‚‚ãªã„ã“ã¨ã‚‚書ã BNFã®èªã¿æ–¹ã‚’説明ã™ã‚‹ 自然演繹ã®èªã¿æ–¹ã‚’説明ã™ã‚‹ Prologã®ã‚¢ãƒªãƒ†ã‚£ã«ã¤ã„ã¦èª¬æ˜Žã™ã‚‹ 1. ã¯ã˜ã‚㫠プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã¯ã€ãƒ—ãƒã‚°ãƒ©ãƒžãŒï¼‘度ã¯ä½œã£ã¦ã¿ãŸã„ã¨å¤¢è¦‹ã‚‹ã‚‚ã®ã®ï¼‘ã¤ã§ã™ã€‚ã—ã‹ã—ã€ãªã‹ãªã‹ç°¡å˜ã«ä½œã‚Œã‚‹ã‚‚ã®ã§ã¯ã‚ã‚Šã¾ã›ã‚“。一体ã©ã†ã™ã‚Œã°ç°¡å˜ã«è¨€èªžã‚’作ã£ã¦ã¿ã‚‹ã“ã¨ãŒã§ãã‚‹ã®ã§ã—ょã†ã‹ï¼Ÿ 以下ã®ã‚ˆã†ãªå››å‰‡æ¼”ç®—ã®è¨€èªž(図1)を考ãˆã¾ã—ょã†: \small \begin{array}{c} \begin{array}{ll} \text{構文}\\ \begin{array}{lcll} t & :
Datalog - Wikipedia
Datalog is a declarative logic programming language. While it is syntactically a subset of Prolog, Datalog generally uses a bottom-up rather than top-down evaluation model. This difference yields significantly different behavior and properties from Prolog. It is often used as a query language for deductive databases. Datalog has been applied to problems in data integration, networking, program ana
世界ã§ä¸€ç•ªãƒ”ュアãªè«–ç†åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžHilbert(ヒルベルト)ã‚’Rubyã§ä½œã£ãŸ. - Qiita
ã‚ã„ã•ã¤ ã“ã‚“ã«ã¡ã¯. 皆ã•ã‚“如何ãŠéŽã”ã—ã§ã—ょã†ã‹. 本日ã®æ—¥ä»˜ã‚’確èªè‡´ã—ã¾ã—ãŸã‚‰ã‚‚ã†2014年も残り一月åŠã¨æ”¹ã‚ã¦èªè˜ã•ã›ã‚‰ã‚Œé©šã„ã¦ã„ã¾ã™. ã“ã†ã‚‚時間ã®æµã‚ŒãŒæ—©ã„ã¨æ»ã¬ã®ã‚‚ã™ãã§ã™ã. 懸命ã«ç”Ÿãよã†ã¨æ€ã„ã¾ã™. ã•ã¦ä»Šå›žã¯Hilbertã¨ã„ã†è«–ç†åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã‚’作りã¾ã—ãŸ. （カジュアルã«ä½œã£ã¦ã‚‹ã‚ˆã†ã«è¦‹ãˆã¾ã™ãŒã€å‰²ã¨æœ¬æ°—ã§ã™.） ã¾ã ã¾ã ã‚„ã‚‹ã¹ã事ã¯æœ¬å½“ã«å¤šãã¦ã€é£´ã¡ã‚ƒã‚“ã‚ã’ã‚‹ã®ã§ã‚³ãƒŸãƒƒã‚¿ãƒ¼å¤§å‹Ÿé›†ã§ã™. （今ãªã‚‰ã‚«ãƒ³ãƒˆãƒªãƒ¼ãƒžãƒ¼ãƒ ã‚‚ã¤ã‘ã‚‹ã®ã§ãŠé¡˜ã„ã—ã¾ã™.） HP: http://hilbert-lang.org/ja/ Github: https://github.com/gogotanaka/Hilbert å‰åº§ 世界ã§ä¸€ç•ªãƒ”ュアã§è±Šã‹ãªãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªž ã“ã®è¨€èªžã§ä»®å®šã•ã‚Œã¦ã„ã‚‹ã®ã¯æ’真（トートãƒã‚¸ãƒ¼ï¼‰ã®ã¿ã§ã™. （厳密ã«è¨€ã†ã¨è‡ªç„¶æ¼”繹も仮定ã•ã‚Œã¦ã„ã¾ã™ãŒ.） 当åˆã€è‡ª
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Ciao Prolog Playground
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