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Thu Jun 30 11:18:51 HKT 2016



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Sat Feb 11 16:13:24 HKT 2017 From /weblog/trip/travelling

south america


阿根廷的觀鳥天堂 - http://cn.wsj.com/big5/20120510/trv081838.asp

http://thenatureoftheworlds.blogspot.com.au[..]m.au/2013/10/iguazu-falls-argentina.html

magnificent-torres-del-paine-national-park-photos-you-absolutely-have-to-see - http://list25.com[..]tos-you-absolutely-have-to-see/?view=all

Hotel next to Perito Moreno Glacier - http://www.eolo.com.ar/home_eng.htm

一個中國人在沒有馬奎斯的波哥大- https://theinitium.com[..]0170211-culture-travel-marquez-columbia/

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Sat Feb 11 16:11:56 HKT 2017 From /weblog/career/jobs

Boss


A discussion thread about how to due with boss/manager that don't give you anything to do - http://discuss.joelonsoftware.com/default.asp?joel.3.361868

Requirement of a PA of one boss - http://manincentral.blogspot.com/2008/03/blog-post_26.html

How to hire a good CEO - http://www.inside.com.tw[..]13/if-when-and-how-to-avoid-hiring-a-ceo

How if boss asking for too much - http://cn.wsj.com/big5/20170208/LIF141035.asp

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Thu Feb 09 23:02:10 HKT 2017 From /weblog/web

performance


One of many tips of how to design a website that deliver content faster - http://alexander.kirk.at[..]006/02/02/10-steps-to-a-faster-web-site/

The other, for user to read quick - http://www.vandelaydesign.com[..]0-ways-to-design-for-impatient-visitors/

Webmaster tools, marketing - http://www.sitepronews.com/archives/2007/aug/3.html
Webmaster tools, page development - http://manwithnoblog.com/2007/08/05/css-debugging-tools/
and tools to tune page performance - http://skytechgeek.com[..]tools-to-boost-up-your-site-performance/

Tips from codinghorror - http://www.codinghorror.com[..]og/2011/06/performance-is-a-feature.html

Tips from ACM - http://queue.acm.org/detail.cfm?ref=rss&id=2512489

Web Framework Benchmarks - http://www.techempower.com/benchmarks/

How taobao optimize their mobile app - http://www.infoq.com[..]bao-521-performance-optimization-project

The timeline of how browser showing the page, and how to optimize it - http://www.nateberkopec.com[..]rontend-performance-chrome-timeline.html https://medium.com[..]-for-the-browser-f2f51a29c572#.7ivccwl5e

How a page loaded fast - https://varvy.com/pagespeed/wicked-fast.html https://medium.baqend.com[..]d-page-loads-lessons-learned-4bb1be3ed07



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Wed Feb 08 10:28:42 HKT 2017 From /weblog/misc

infrastructure


Why we need tools design for provisioning - https://www.thoughtworks.com[..]anagement-and-provisioning-are-different

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Tue Feb 07 23:18:45 HKT 2017 From /weblog/java/fundamental

time


How difference platform implement nanoTime() - http://www.javacodegeeks.com[..]12/02/what-is-behind-systemnanotime.html http://stackoverflow.com[..]62/is-system-nanotime-completely-useless

Java timezone ID reference - http://david.uebelacker.ch[..]etrive-locale-and-timezone-from-request/ http://tutorials.jenkov.com[..]m/java-date-time/java-util-timezone.html

setTimeZone affects calls to set(), but doesn’t change the existing Calendar time? So if we wanted to change the time zone we are working with, we have to adjust all the time fields too…but a SimpleDateFormatter still would show it as the current time zone. - http://keyholesoftware.wordpress.com[..]1/joda-time-the-future-of-java-datetime/

http://blog.joda.org[..]va-time-jsr-310-enhancements-java-9.html

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Tue Feb 07 19:07:19 HKT 2017 From /weblog/ai

google


Prediction API - http://code.google.com/apis/predict/

How google predict parking - https://research.googleblog.com[..]2/using-machine-learning-to-predict.html

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Tue Feb 07 15:44:58 HKT 2017 From /weblog/design

performance


http://highscalability.com[..]6/big-list-of-20-common-bottlenecks.html

Nothing specific, mostly code clean up, refactoring and simplification, the performance boost was a surprise. <- This is a good one - http://bad-concurrency.blogspot.com.au[..]12/07/disruptor-v3-faster-hopefully.html

Is there anything we can do about this when designing algorithms and data-structures? Yes there is a lot we can do. If we perform chunks of work on data that is co-located, and we stride around memory in a predictable fashion, then our algorithms can be many times faster. For example rather than using bucket and chain hash tables, like in the JDK, we can employ hash tables using open-addressing with linear-probing. Rather than using linked-lists or trees with single items in each node, we can store an array of many items in each node. - http://mechanical-sympathy.blogspot.com.au[..]emory-access-patterns-are-important.html

Skip lists are used instead of b-trees because b-trees don’t scale. - http://highscalability.com[..]ast-mvcc-inmem-lockfree-codegen-and.html

Beware about the performance issue of static initalization - http://stackoverflow.com[..]-cause-problems-with-multi-threading-how

Experiment show why arraylist is better in most cases - http://www.javaadvent.com/2013/12/arraylist-vs-linkedlist.html

How to design low latency application in java - http://vanillajava.blogspot.com.au[..]5/chronicle-and-low-latency-in-java.html

http://highscalability.com[..]ciples-of-high-performance-programs.html http://blog.libtorrent.org[..]principles-of-high-performance-programs/

Suggestion about how to determine number of thread pool - http://venkateshcm.com[..]rmine-Web-Applications-Thread-Poll-Size/

Beware the performance penalty of logging - https://plumbr.eu/blog/locking-and-logging

Keep thing dynamic - http://highscalability.com[..]ciples-of-high-performance-programs.html

http://www.rationaljava.com[..]st-rule-of-performance-optimisation.html

http://www.eecs.berkeley.edu[..]u/~rcs/research/interactive_latency.html

http://highscalability.com[..]aling-data-platforms.html?SSLoginOk=true

Discuss about developing low latency financial application - http://queue.acm.org/detail.cfm?ref=rss&id=2770868

Discussion of object pooling - http://highscalability.com[..]-but-forgotten-trick-object-pooling.html http://coffeenco.de[..]m_performance_part_1_object_pooling.html

Efficiency - the amount of work you need to do.
Performance - how fast you can do that work
Efficiency - governed by your algorithm
Performance - governed by your data structures.
http://www.rationaljava.com[..]e-difference-between-efficiency-and.html


Turning off power save mode on the CPU reduced brought the max latency from 11 msec down to 8 msec.
Guaranteeing threads will always have CPU resources using CPU isolation and thread affinity brought the maximum latency down to 14 microseconds.
http://highscalability.com[..]eduler-jitter-using-cpu-isolation-a.html
http://epickrram.blogspot.co.uk[..]o.uk/2015/09/reducing-system-jitter.html

About design for performance for webapi - http://tech.forter.com[..]y-decision-as-a-service-design-patterns/

check list - http://techbeacon.com[..]ery-software-development-team-should-ask

Beware if system utilization over 80% - http://www.infoq.com/cn/news/2016/02/utilisation-wait-latency http://robharrop.github.io[..]/20/service-latency-and-utilisation.html

scalable-io-events-vs-multithreading-based - https://thetechsolo.wordpress.com[..]lable-io-events-vs-multithreading-based/

How to find out bottleneck - https://vanilla-java.github.io[..]entile-latencies-in-Chronicle-Queue.html

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Sun Feb 05 20:12:00 HKT 2017 From /weblog/health/food

egg


嚴說養生 立夏吃雞蛋 - http://www.yimho.com/1443.html

烹制雞蛋美食的四種方法 - http://cn.wsj.com/big5/20140513/DJL071521.asp?source=rss

More ways of cooking egg - http://www.buzzhand.com/post_282334.html

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Sun Feb 05 16:37:02 HKT 2017 From /weblog/ai

theory


What AI can done - http://www.inma.ucl.ac.be/~francois/blog/entries/entry_562.php

http://machinelearningmastery.com[..]om/a-tour-of-machine-learning-algorithms

How Quora do machine learning - http://www.infoq.com/cn/news/2015/12/Quora-ML https://www.linkedin.com[..]/machine-learning-quora-xavier-amatriain

And NLP - http://www.infoq.com/cn/news/2015/12/Quora-TF-IDF-NLP https://data.quora.com[..]on-Quora-Over-Time-through-Question-Text http://www.infoq.com/cn/news/2015/12/Twitter-api-notion

Recommandation libraries - http://jagto.com[..]ava-libraries-for-recommendation-system/

Overview of Recommender Algorithms – https://buildingrecommenders.wordpress.com[..]verview-of-recommender-algorithms-part-1 https://buildingrecommenders.wordpress.com[..]verview-of-recommender-algorithms-part-2 https://buildingrecommenders.wordpress.com[..]verview-of-recommender-algorithms-part-3 https://buildingrecommenders.wordpress.com[..]verview-of-recommender-algorithms-part-4 https://buildingrecommenders.wordpress.com[..]verview-of-recommender-algorithms-part-5 https://buildingrecommenders.wordpress.com[..]/the-components-of-a-recommender-system/

http://deeplearning4j.org/

Books:
Artificial Intelligence, foundations of computational agents - http://artint.info/html/ArtInt.html
Deep Learning, An MIT Press book in preparation - http://www.deeplearningbook.org/
http://www.constructedintellect.com[..]com/learning-ai-resources-links-courses/
http://neuralnetworksanddeeplearning.com/

机器学习:现在与未来 - http://www.weibo.com/ttarticle/p/show?id=2309403965913404704823

网站文章如何能自动判定是抄袭?一种算法和实践架构剖析 - http://www.infoq.com[..]rticle-utomatically-determine-plagiarism

neural network - http://pages.cs.wisc.edu/~bolo/shipyard/neural/local.html

Users-AI-application-cases-enter - http://www.infoq.com[..]2016/12/Users-AI-application-cases-enter https://news.ycombinator.com/item?id=13159908

Some more discussion of AlphaGO - https://theinitium.com/article/20170105-opinion-AI-Go/

How self driving car work - http://www.nytimes.com[..]chnology/how-self-driving-cars-work.html

人工智慧 Libratus 是如何擊敗德州撲克高手的? - https://www.inside.com.tw/2017/02/03/how-libratus-work

Good video tutorial from facebook - https://code.facebook.com[..]8519962/artificial-intelligence-revealed

MindMeld’s Guide to Building Conversational Apps - https://www.infoq.com/news/2017/02/mindmeld-guide https://docs.mindmeld.com/index.html

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Fri Feb 03 10:45:17 HKT 2017 From /weblog/health

brain


打游戲有助老年人集中注意力 - http://cn.wsj.com/big5/20131002/ptk113100.asp?source=rss

康寧漢說,工作要求人們集中注意力,這使得其心理、社交及物質層面的能量精力消耗枯竭,而這一切又會導致壓力的產生并降低勞動者的生產力。他說:“從辦公桌邊抽身離去進行午間休息能讓人們遠離腦力枯竭的根源。這還會為你提供在晌午時分——而不是等到一天工作結束之際——恢復大腦活力、重整精氣神的機會。” - http://cn.wsj.com/big5/20131025/hea075035.asp?source=rss

補腦良方要學會 - http://www.yimho.com/2060.html

http://list25.com[..]ain-that-your-brain-didnt-know/?view=all

在預防痴呆症方面,速度訓練已超越另外兩種流行的大腦訓練:記憶和推理練習。 - http://cn.wsj.com/big5/20161226/LIF152715.asp?source=rss

know-about-multiple-personality-disorder - http://list25.com[..]-multiple-personality-disorder/?view=all

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Tue Jan 31 18:57:39 HKT 2017 From /weblog/trip/travelling

misc


遊搜好行:蜜月尋夢  63,000公里 - http://hk.apple.nextmedia.com[..]20120421&sec_id=12187369&art_id=16266814

看北極光、鐘乳石、瀑布彩虹、動物大遷徒、泰姬陵等,都是美國有線新聞網絡( CNN)精選的人生必遊景點 - http://hk.apple.nextmedia.com/international/art/20120715/16515366

尋找心中的最後一塊淨土 - http://cn.wsj.com/big5/20130111/lux073206.asp?source=rss

The best sun set - http://hk.apple.nextmedia.com/international/art/20130815/18379134 www.utravel.com.hk/DetailNews.php?id=AD8RYxEvA3U&utm_source=weekend_all&utm_medium=edm&utm_content=oversea2&utm_campaign=weekend-130904

Nice places at various places on earth - http://mp.weixin.qq.com[..]0dad2d4ac0e22b0f5459e87f1ab5a3b2a7238ee2

地球最深的影像 库鲁伯亚拉洞穴探险 (Krubera Cave,又名Voronya Cave) - http://digi.163.com/14/0707/04/A0HBGP9O001624J2.html

unbelievable-photographs-of-national-parks-from-around-the-world - http://list25.com[..]al-parks-from-around-the-world/?view=all

restaurants-with-jaw-dropping-views - http://list25.com[..]urants-with-jaw-dropping-views/?view=all

places-that-look-like-they-are-from-another-planet - http://list25.com[..]e-they-are-from-another-planet/?view=all

places-you-can-get-away-from-pretty-much-everything-and-everybody - http://list25.com[..]-much-everything-and-everybody/?view=all

earths-most-breathtaking-natural-wonders - http://list25.com[..]t-breathtaking-natural-wonders/?view=all

craziest-things-found-in-nature - http://list25.com/25-craziest-things-found-in-nature/?view=all

astounding-fairytale-like-european-castles-and-chateaus - http://list25.com[..]-european-castles-and-chateaus/?view=all

amazingly-unique-walks-around-the-world - http://list25.com[..]-unique-walks-around-the-world/?view=all

popular-landmarks-that-are-creepy-suicide-hot-spots - http://list25.com[..]t-are-creepy-suicide-hot-spots/?view=all

unique-travel-destinations-most-travelers-have-no-clue-exist - http://list25.com[..]st-travelers-have-no-clue-exist/view=all

unique-spring-break-destinations-you-have-to-visit - http://list25.com[..]destinations-you-have-to-visit/?view=all

amazing-places-to-watch-the-sunrise-from-around-the-world - http://list25.com[..]-sunrise-from-around-the-world/?view=all

most-dangerous-hikes-treks-and-climbs-on-earth - http://list25.com[..]ikes-treks-and-climbs-on-earth/?view=all

best-countries-to-live-in - http://list25.com[..]to-the-human-development-index/?view=all

incredible-national-parks-on-earth - http://list25.com[..]edible-national-parks-on-earth/?view=all

street-food-from-around-world - http://www.damncoolpictures.com[..]eet-food-from-around-world-that-you.html

placed-star-wars-was-filmed-that-you-must-visit - http://list25.com[..]was-filmed-that-you-must-visit/?view=all

most-visited-museums-in-the-world - http://list25.com/25-most-visited-museums-in-the-world/?view=all

11 Popular Tourist Attractions That Might Kill You - http://www.damncoolpictures.com[..]11-popular-tourist-attractions-that.html

mountain-ranges-you-need-to-visit-if-you-are-a-fan-of-nature - http://list25.com[..]sit-if-you-are-a-fan-of-nature/?view=all

beautiful-mountain-passes-you-should-make-a-point-to-travel-through - http://list25.com[..]make-a-point-to-travel-through/?view=all

most-visited-cities-in-the-world-you-should-visit - http://list25.com[..]-in-the-world-you-should-visit/?view=all

most-extreme-climates-and-places-on-earth - http://list25.com[..]e-climates-and-places-on-earth/?view=all

most-generous-countries-in-the-world - http://list25.com[..]enerous-countries-in-the-world/?view=all

volcanoes - http://list25.com/25-most-terrifying-volcanoes-on-earth/?view=all

These places will keep you awake at night. - http://www.damncoolpictures.com/2014/03/very-scary-places.html

incredible-country-borders - http://list25.com/25-incredible-country-borders/?view=all

natural-photos-you-wont-believe-are-not-photoshopped - http://list25.com[..]t-believe-are-not-photoshopped/?view=all

Nice bridge around the earth - http://www.dcfever.com/travel/deal.php?id=14327&link=guid

most-peaceful-countries-in-the-world- http://list25.com[..]eaceful-countries-in-the-world/?view=all

most-charming-alpine-towns-youve-probably-never-seen - http://list25.com[..]owns-youve-probably-never-seen/?view=all

crazy-awesome-festivals-around-the-world-for-every-taste - http://list25.com[..]ound-the-world-for-every-taste/?view=all

unforgettable-adventures-that-youll-be-glad-you-went-on - http://list25.com[..]that-youll-be-glad-you-went-on/?view=all

least-visited-island-countries-in-the-world - http://list25.com[..]-island-countries-in-the-world/?view=all

amazing-uninhabited-islands-that-are-strikingly-beautiful - http://list25.com[..]-that-are-strikingly-beautiful/?view=all

most-visited-countries - http://list25.com[..]visited-countries-in-the-world/?view=all

Atolls - http://list25.com[..]st-amazing-atolls-in-the-world/?view=all

White Christmas - http://list25.com[..]aces-to-have-a-white-christmas/?view=all

Beach - http://list25.com[..]untries-you-would-never-expect/?view=all

Romantic - http://list25.com[..]es-to-ask-someone-to-marry-you/?view=all http://list25.com[..]edding-youve-always-dreamed-of/?view=all

most-remote-places-in-the-world - http://list25.com[..]ost-remote-places-in-the-world/?view=all

Incredible Deserts That Will Make You Wish It Never Rained - http://list25.com[..]-make-you-wish-it-never-rained/?view=all

worlds-most-colorful-cities - http://list25.com[..]cities-to-brighten-up-your-day/?view=all

About diving - http://blog.kkday.com/2016/05/diving.html

About canyons - http://list25.com[..]inspiring-canyons-in-the-world/?view=all

ancient-architectural-wonders - http://list25.com[..]-ancient-architectural-wonders/?view=all

Dangerous roads - http://list25.com/25-extremely-dangerous-roads/?view=all

countries-to-visit-that-you-didnt-know-existed - http://list25.com[..]it-that-you-didnt-know-existed/?view=all

scariest place - http://list25.com[..]-few-are-brave-enough-to-visit/?view=all

Fall Color - http://list25.com[..]at-are-remarkably-breathtaking/?view=all

Winter - http://list25.com[..]s-to-spend-your-winter-holiday/?view=all

beautiful-cities - http://list25.com[..]he-world-to-see-before-you-die/?view=all

volunteer-travel-experiences - http://list25.com[..]vel-experiences-you-should-try/?view=all

Beaches - http://list25.com[..]hes-you-absolutely-have-to-see/?view=all

(google search) (amazon search)


Sun Jan 29 17:15:19 HKT 2017 From /weblog/science/animal

bird


Rare birds - http://list25.com[..]irds-you-might-have-never-seen/?view=all

Eagles - http://list25.com[..]ht-change-the-way-you-see-them/?view=all


(google search) (amazon search)


Wed Jan 25 23:40:16 HKT 2017 From /weblog/investment

volatility


http://quant.stackexchange.com[..]high-volatility-stocks-over-the-long-run

The hidden issue of low interest environment - http://cn.wsj.com/big5/20130129/opn145859.asp http://cn.wsj.com/big5/20130129/bus141954.asp

Volume and price change - http://traderfeed.blogspot.hk[..]ding-change-and-stability-in-market.html

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Tue Jan 24 11:35:02 HKT 2017 From /weblog/photographic/collections

city


http://list25.com[..]tos-of-sunsets-in-metropolises/?view=all

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Mon Jan 23 18:33:07 HKT 2017 From /weblog/design/concurrency

thread


Stealing thread - http://badamczewski.blogspot.com.au/2012/05/work-stealing.html

Intel Guide for Developing Multithreaded Applications - http://software.intel.com[..]or-developing-multithreaded-applications

Difference ways to stop a thread - http://www.ddj.com[..]ept_url=/hpc-high-performance-computing/

Interesting, I am not sure if I agree, but chrome ( which use fork ) are really cool in performance:
There’s another problem with Unix programming in Ruby that I’ll just touch on briefly: Java people and Windows people. They’re going to tell you that fork(2) is bad because they don’t have it on their platform, or it sucks on their platform, or whatever, but it’s cool, you know, because they have native threads, and threads are like, way better anyways.

Fuck that.

Don’t ever let anyone tell you that fork(2) is bad. Thirty years from now, there will still be a fork(2) and a pipe(2) and a exec(2) and smart people will still be using them to solve hard problems reliably and predictably, just like they were thirty years ago.

MRI Ruby people need to accept, like Python (you have seen multiprocessing, yes?), that Unix processes are one of two techniques for achieving reliable concurrency and parallelism in server applications. Threads are out. You can use processes, or async/events, or both processes and async/events, but definitely not threads. Threads are out.
http://tomayko.com/writings/unicorn-is-unix

1x1 win M*N - http://binkley.blogspot.com/2012/01/1-1-beats-n-m.html

Best number of threads:
N = number of CPUs
U = target CPU utilization (0 <= U <= 1)
W/C = ration of wait time to cpu time (measured through profiling)

threads = N * U * (1 + W/C) - http://www.ibm.com/developerworks/library/j-jtp0730.html http://stackoverflow.com[..]ratio-of-java-threads-to-cpus-on-solaris

Another post about tuning thread pool - http://www.javaadvent.com[..]ortance-of-tuning-your-thread-pools.html

Threads Basics - http://www.hpl.hp.com/techreports/2009/HPL-2009-259html.html http://www.hpl.hp.com/personal/Hans_Boehm/c++mm/threadsintro.html

The Dos and Don'ts of Multithreading - http://www.infoq.com/presentations/multithreading

https://www.infoq.com/articles/engstrand-microservice-threading

http://cbloomrants.blogspot.hk[..]-26-09-low-level-threading-table-of.html

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Fri Jan 20 11:52:35 HKT 2017 From /weblog/unix

desktop


Some useful tools - https://nicolas.perriault.net/code/2016/from-osx-to-ubuntu/

Tuning - http://www.akitaonrails.com[..]1/17/optimizing-linux-for-slow-computers

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Thu Jan 19 22:46:27 HKT 2017 From /weblog/health/food

sugar


糖會要了我們的命? - http://cn.wsj.com/big5/20161227/LIF161227.asp

http://www.vox.com[..]ary-nutrition-science?curator=MediaREDEF

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Wed Jan 18 23:07:43 HKT 2017 From /weblog/learning

focus


How to train focus - https://www.infoq.com/news/2017/01/attention-awareness-teams http://www.infoq.com/cn/news/2017/01/attention-awareness-teams

(google search) (amazon search)


Wed Jan 18 22:50:43 HKT 2017 From /weblog/learning

pause


http://traderfeed.blogspot.hk/2017/01/the-power-of-pause.html

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Tue Jan 17 23:43:05 HKT 2017 From /weblog/business

react


How to react to information leak - https://www.inside.com.tw[..]ns-from-37-minutes-in-an-amazon-war-room

(google search) (amazon search)



Tue Jan 17 23:09:08 HKT 2017 From /weblog/design

gc


https://blog.plan99.net[..]rbage-collection-911ef4f8bd8e#.wr03zaasu

(google search) (amazon search)