Tatsuya Tsuda

Developer of Shen-JVM, Shen-C, Shen for Android, and Shen for iOS/Member of 2011 Shen Commitee/Lisp/Clojure

[Tatsuya Tsuda @otabat_]

Shen Programming Language for iOS is now available on the app store! I Hope you'll enjoy :) https://t.co/zX1Q6QJlX8 #shenlanguage #lisp #iOS

[Tatsuya Tsuda @otabat_]

余ったGPUリソースを学生、研究者などに貸し、マイニングコストを下げたり、小遣い稼ぎができる新しいサービス。セキュリティ、報酬単価、支払い方法についてはHostingページに記載。すばらしいサービス。　https://t.co/ZAh4IGQjOo

[Tatsuya Tsuda @otabat_]

Andrew Ng先生による有名なCourseraの「Machine Learning」を修了。機械学習界隈の話題が少し分かるようになったのは大きな収穫で、終始先生の人柄の良さを感じる講義。MOOCすばらしい。次は、必要な数学のブラッシュアップ、深層学習用に計算機の購入、https://t.co/4AnOUVnSKd、Kaggleに挑戦したい。

[Tatsuya Tsuda @otabat_]

なので、暗号通貨の名称として、NEMを使っても間違いではないが、XEMの方が公式の意図としては適切かと。

[Tatsuya Tsuda @otabat_]

NEMとXEMの違いが分からない人がいるかと思うので。公式サイトから直接引用すると、
NEM: "NEM is the world's first Smart Asset blockchain", "NEM is a blockchain project", "NEM is not just a crypto currency"
XEM: "NEM’s cryptocurrency", "NEM's currency code"

[Tatsuya Tsuda @otabat_]

取り扱い通貨、経営層の金融業界経験者数、セキュリティへの取り組み、ブロックチェーン技術の理解と独自技術の開発、採用の募集職種。CoincheckはbitFlyerに比べて公式サイトが見劣り、不安があり、登録したものの後者のみを使用していたので今回は無事。bitFlyerは事件前に引き上げていたが様子見。

[Tatsuya Tsuda @otabat_]

Using the Java option -XX:+UseAppCDS, Shen-JVM startup time reduces from 470ms to 280ms and is looking good compared to the minimum Java startup time without options that is 200ms on my Mac.

[Tatsuya Tsuda @otabat_]

Shen for Android now on the first page of Hacker News!

[Tatsuya Tsuda @otabat_]

Shen Programming Language for Android is now available on Google Play! I Hope you'll enjoy :) https://t.co/CbwEtXm4Ye #ShenLanguage #Lisp #Android

[Tatsuya Tsuda @otabat_]

@cipher_simian I understand your concerns and also have thought about it before. Unfortunately it is not easy to cover all features when having a powerful type system like in Shen with reasonably fast type checking ability.

[Tatsuya Tsuda @otabat_]

@cipher_simian Two more examples are Shen-YACC and the Prolog included in Shen.

[Tatsuya Tsuda @otabat_]

@cipher_simian Also making static type checking optional is a fundamental decision that the original creator of Shen, Mark Tarver, has decided and will not go away, unless somebody has come up with a game changing type theory.

[Tatsuya Tsuda @otabat_]

@cipher_simian One example is eval. Another is that since Shen has weak ability to infer types, you always have to add types to function definitions that unnecessarily increase codes in some situations, such as when doing rapid prototyping.

[Tatsuya Tsuda @otabat_]

@cipher_simian Thanks for the suggestion. Since all features are not available when type checking is on, there are different user requirements. If the issue is only about the default value, it may be better to add a feature for changing it.

[Tatsuya Tsuda @otabat_]

ちなみにこのバグは、5ch管理人のJim氏にツイッター経由で報告し、すでに修正済みでもう確認できません。また、Clojureがどこで使われているのかとついでに質問しましたが、特に回答は得られてません。検索周り以外でも使われているのかが気になる。

[Tatsuya Tsuda @otabat_]

@xerxeswatkins Thanks. Confirmed!

[Tatsuya Tsuda @otabat_]

@xerxeswatkins There is a bug in the スレタイ検索 of https://t.co/uZkRH3glnE that when entering left or right parenthesis, raw error logs are displayed. BTW it seems that Clojure is used in 5ch, if possible, can you tell me where Clojure is actually used in the service?

[Tatsuya Tsuda @otabat_]

https://t.co/uZkRH3glnEトップ画面のスレタイ検索フォームに(や)を入力すると、適切にエスケープされず、エラーログが垂れ流しになるバグを見つけたのだが、明らかにClojureが使われていると思われる。日本語Webサービスにおいて最大規模の採用事例かと。#clojure #2ch #5ch

[Tatsuya Tsuda @otabat_]

Shen-JVM running on Android in 0.4s startup time! #ShenLanguage #Lisp #Android

[Tatsuya Tsuda @otabat_]

Some details of Shen-JVM 0.2.1 and the progress for running Shen on Android https://t.co/QuIKUMN9Et #shenlanguage #lisp

[Tatsuya Tsuda @otabat_]

Updated Shen-JVM to 0.2.1 https://t.co/qvzYWKndT2 Now it is comparable in speed to the standard Shen implementation, Shen SBCL #shenlanguage #lisp