Random Thoughts: A Few Brain Teasers

Sharing some brain teasers I found interesting. See how many you can figure out yourself:

Problem 1: The Missing Dollar
==========================

Image credit: Canvas

Three guests check into a hotel room. The normal charge for one night is $30, so each guest pays $10. Later the owner said that there's a promotion and the bill should only be $25. To rectify this, he gives the bellhop $5 to return to the guests. On the way to the room, the bellhop realizes that he cannot divide the money equally. As the guests didn't know the total of the revised bill, the bellhop decides to just give each guest $1 and keep $2 for himself.
Now that each of the guests has been given $1 back, each has paid $9, bringing the total paid to $27. The bellhop has $2. If the guests originally handed over $30, what happened to the remaining $1?


Problem 2: Cut the Loss
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Image credit: iStockPhoto

One day a customer came to Tom's store. He collected $20 worth of merchandize, and then gave Tom a $50 bill. Since Tom didn't have enough change, he went to Charlie's store next door and exchanged the $50 bill into changes. Then he gave the customer $30 change. Shortly after the customer left, Charlie came to Tom and told him that the $50 bill was counterfeit money. So Tom immediately gave Charlie another $50 bill in exchange. So after all, how much money did Tom lose from this incident? Was it $50, $80, or $100?


Problem 3: Green Onion Vendor
==========================

Image credit: The Virginian Pilot

A customer came to the green onion vendor and asked about the price of the green onions. The vendor said that the green onions sell for one dollar per pound. Since he had a total of 100 pounds, it would cost one hundred dollars to buy them all. The customer then asked if the vendor would consider selling green onion stems and leaves separately. The vendor told him that the green onion stems would sell for 70 cents and the green onion leaves would sell for 30 cents. The customer then decided to buy 50 pounds of green onion stems and 50 pounds of green onion leaves. The vendor then calculated as the following:


50 x 0.7 = 35, 50 x 0.3 = 15, 35 + 15 = 50

So the customer paid $50 and left. Now the green onion vendor was very confused: how come the customer was able to take away his $100 worth of green onions for only $50?


Problem 4: Find the Odd Ping Pong Ball
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Image credit: 123RF.com

You have 12 ping pong balls. One of them is slightly heavier OR lighter than the others. You also have a balance scale. How can you find the odd ball out, and if it is heavier or lighter, in only 3 weighings. Please help!


Problem 5: Silver Utensils Problem
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Image credit: Shutterstock

Bill wanted to buy some silver utensils, so he went to the utensil store and then found out that he only had enough money to buy 21 forks and 21 spoons, or 28 knives only. Since he needs to buy the same number of forks, spoons and knives to make complete sets, and he would really prefer to use up all the money he had brought, can you help him out?


Check out the answers to these problems here.



Video of the Day:

A great review of year 2011 based on what people searched in Google:

Random Thoughts: Sharing Some Mini-Stories

Sharing some mini-stories I read on the Internet. Hope you enjoy!

He was three when he peed his pants. She took her own pants off and gave it to him. "Remember to give it back to me," she said.
He was thirteen when he was courting a beautiful girl. She shoved her wallet into his hands. "Remember to give it back to me," she said.
He was thirty-three when he lost his ring. She took off the identical ring from her finger. "Remember to give it back to me," she said.
He was forty-three when the plane was about to crash. She strapped the parachute on him and waved. "You don't have to give it back to me this time," she said with a smile.

**********

Many years after the breakup they met again by chance.
Man: "How are you doing?"
Woman: "Good."
Man: "How is he doing?"
Woman: "Good."
"How about yourself?" the woman asked.
"Good."
Woman: "How about her?"
Man: "She just told me she is good."

**********

Everyday I would take the subway together with my girlfriend to go to work. Then one day and every day after she always found the handsome young man waiting for her outside of the station leaned on his sports car and looking at her with a big smile. At first she simply ignored him. But the handsome man and his sports car consistently showed up on time every day. Gradually she treated me with less and less enthusiasm until the day when the handsome young man confronted her with a large bouquet of red rose and asked, "Will you leave him, please?" "Of course!" she said with excitement. "She no longer loves you," the young man turned to me, "be my boyfriend, will you?" I accepted the bouquet.

**********

She climbed in the taxi and then recognized him. They had been intimate lovers ten years ago and had decided to go separate ways under the heavy pressure from their parents, never seeing each other again.
"How are you?"
"I am good, you?"
"Good."
She noticed the watch on his wrist was still the same one she had given him.
When she was getting off, he heard the jingles from the bell strapped on her handbag, the one he had given her.

**********

It was night. The boy had the girl on the back of his motorcycle.
Girl: "Can you slow down? I am scared."
Boy: "Isn't this fun?"
Girl: "Please! I am scared."
Boy: "Alright. Tell me you love me."
Girl: "Fine. I love you. Can you slow down now?"
Boy: "Can you take off my helmet and put it on. It's making me very uncomfortable."
The next day in the news: One death and one survivor in a motorcycle crash. Malfunctioning brakes to be blamed.

**********

In the United States.
"Hello...oh, hi mom, what is it?"
"Nothing, I just miss you."
"Alright, mom. I am really sleepy. It's early in the morning here. How many times have I told you. Don't forget the 12 hours timezone difference."
"Oh, I forgot. Go back to sleep..."
Five minutes later.
"Gosh, who's calling this early again!"
"This is your uncle. Your mom's apartment building is on fire!"
Dialing back immediately.
"Mom! Mom! Pick up the phone!!"
Ring...ring...ring...

**********

She works in a highrise building in the jungle of the city. He works in the office in the same floor just across the street. Everyday she would secretly watch him, imagining his joy and sorrow and then record them in her blog. Then one day he disappeared suddenly. She felt as if a chunk was missing from deep inside her heart. "He left. I miss him but he doesn't know." she wrote in her blog. A new comment quickly popped out. "Silly! I just moved to the floor above."

**********








Appreciate what you have before they are gone!

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 6

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 5

第十一式打躬击鼓

接上式，右脚落地，起身向右转90度，右脚向左脚收半步，距离与肩同宽，成下蹲势。 两手抬至头侧后方，掌心按压两耳，周身放松，中、食、无名指稍屈，轻轻叩击枕骨处，两手交替进行，各叩击七次，谓之”鸣天豉”。 鸣豉后双手抱后脑，缓缓向前弯腰，头垂于裆间至最大程度，膝挺直，如打躬状。 鸣天豉时身体先向左转90度，再向右转180度，再向左转90度。 弯腰垂头时牙关咬紧，作细微自然呼吸。 重复做三遍。

11^th Stance: Bowing Down and Beating the Heavenly Drum

Continue from the last stance. Put the right foot down to the ground and stand back up. Turn 90 degrees to the right to return to facing front. Move right foot half step toward the left foot so they are at shoulder width and then squat. Raise both hands above your head and then lower them behind the head until your palms cover your ears. Relax the whole body. Slightly bend the index fingers, the middle fingers, and the ring fingers and gently tap the occipital bone with alternating hands. Tap seven times with each hand. This is called “Beating the Heavenly Drum.” After beating the drum hold the back of the head with both hands and slowly bent forward until your head cannot go any lower between your crotches. Keep the knees straight as if you are bowing down. When beating the heavenly drum, turn your body 90 degrees to the left first, next turn 180 degrees to the right and then turn 90 degrees to the left. Clench your teeth while bending forward and take small breathes naturally. Repeat three times.

第十二势：掉尾势

两腿开立，双手仰掌由胸前徐徐上举至头顶，目视掌而移，身立正直，勿挺胸凸腹；十指交叉，旋腕反掌上托，掌以向上，仰身，腰向后弯，目上视；然后上体前 屈，双臂下垂，推掌至地，昂首瞪目。呼气时，屈体下弯，脚跟稍微离地；吸气时，上身立起，脚跟着地；如此反复21次。收功：直立，两臂左右侧举，屈伸7 次。

12^th Stance: Swinging the Tail

Stand with legs spread open. Slowly raise your hands past your chest and above your head, palms facing upward. Fix your stare on your palms as they move. Keep your body upright and don’t pull back shoulders or hold out your bosom. With ten fingers crossed, rotate your wrists and then lift upward with palms facing up. Extend the upper body and bend your waist backward while looking up. Then bend your body forward with both arms stretching out on the side and touch the ground. Lift your head and open your eyes wide. When exhaling, bend forward and at the same time lift the back heels off the ground slightly. When inhaling, return upper body back to standing position and land the back heels back to the ground. Repeat 21 times. To finish the exercise, stand in upright position and raise your arms from the side. Bend and extend the arms 7 times.

Again, please see how our friendly Mr. Bruce Wen demonstrate these two stances and explain things in English. Remember, Mr. Wen's version might be slightly different from the version I translated.

This concludes the entire Twelve Stances of the Yi-Jin-Jing. The following video shows a different flavor of the Twelve Stances of Yi-Jin-Jing demonstrated by a Shaolin monk in one smooth continuous form.

Video of the Day:

A National Geography documentary on the subject of Shaolin Kung Fu.

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 5

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 4

第九式青龙探爪

接上式，左脚回收于右脚内侧，成立正姿势。 左臂屈肘收回于左腰间。 同时右肘微屈，吸气，上体向左扭腰转体，右手向体前探爪抓去，并吐气发出“嘘”声，此时要求腰腹放松。 右手回收，向左46度方向做第二次探爪，再收回向左90度方向做第三次探爪。 然后，头带动躯干沿逆时针方向转动一小周，右手随之书一小圆（上图）。 两眼随右爪瞭望，如寻食状。 每次探爪均发出“嘘”声。 探爪时右臂一伸一缩，身体随之转后。 然后右手收回腰间，左手以同样动作向右探爪（下图）。

9^th Stance: Green Dragon Waving Its Claws

Continue from the last stance. Retract left foot back next to the right foot in an Attention position (like in military drills). Bend the left elbow and retract left arm next to the left side of the waist. Meanwhile, bend the right elbow slightly, inhale, turn the upper torso to the left, reach forward with the right hand in a dragon claw, exhale and make a “Shu” sound. Remember to relax the waist and abdomen for this stance. Retract the right hand back and then reach out the second time 46 degrees to the left with a dragon claw. Retract again and then reach out a third time 90 degrees to the left. Next, let the head lead the torso and make a small circular movement counterclockwise. Then make a circular movement with the right hand (see upper figure). Glance following the left claw hand as if hunting for preys. Make the “Shu” sound each time when reaching out with the claw hand. Extend and retract the right arm when executing the dragon claw. Turn your body afterwards. Then retract right hand back to the waist side and reach out with the left hand in dragon claw to the right (see lower figure).

第十式卧虎捕食

接上式，左臂回收于腹前，右脚向右跨一步，同时向右转体90度，上体顺势前倾，两掌手心向右前方下扑，如卧虎捕食。 此时两掌落地，成右弓步，昂首环视（上图）。 然后以双手手指支撑全身重量，左腿屈膝成90度，左脚抬离地面，脚心朝上﹔两臂一伸一屈，身体上下起伏。 做三至五次。 而后两手离地，手心翻向上，体向左后转180度，两手掌再翻向下，再做卧虎捕食动作，唯方向相反（下图）。

10^th Stance: Crouching Tiger Hunting for Prey

Continue from the last stance. Retract the left arm back to the stomach. Take a step to the right with the right foot and at the same time turn 90 degrees to the right. Lean the upper body forward following the natural flow of the movement and pounce forward with both palms facing down like how a crouching tiger pounces on its prey. Both palms should reach the ground while the legs are in a right front stance. Raise your head and look around (see upper figure). Next use fingers from both hands to support your entire body weight. Bend the left knee to 90 degrees and lift the left foot off the ground and turn the bottom of the foot upward. One arm should be in extended position while the other one is bent. Shift your body up and down for three to five times. Then raise both hands with palms facing upward and turn your body 180 degrees to the left. Turn the palms to face downward again and execute the crouching timer pouncing on prey move, only in opposite direction (see lower figure).

In the video below you can see our friendly Mr. Bruce Wen demonstrating these two stances and explain in English. Remember, Mr. Wen's version might be slightly different from the version I translated.

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 6


Picture of the Day: 

Although my 6-year old daughter Adeline has never learned the Tendon-Altering Sutra, although she is only a white belt, she certainly knows how to throw a beautiful kick!

10 Famous Thought Experiments That Just Boggle Your Mind Part 1

I ran into an interesting article in a forum (original in Chinese) that talked about 10 very famous thought experiments in the fields of philosophy, ethics, and psychology. Since I am getting a Doctor degree in Philosophy (hopefully), and also because I strongly believe these type of questions and experiments are very related in the research of artificial intelligence, I thought I'd share these with you together with my thoughts on the subject. Hope you enjoy!

10. The Trolley Problem

The trolley problem is a well known thought experiment in ethics, first introduced by Philippa Foot, a British philosopher. Trolley is the British term for a tram. The problem goes like this:

A trolley is running out of control down a track. In its path are five people who have been tied to the track by a mad philosopher. Fortunately, you could flip a switch, which will lead the trolley down a different track to safety. Unfortunately, there is a single person tied to that track. Should you flip the switch or do nothing?

A common answer takes the utilitarianism approach where flipping the switch becomes the obvious option because saving five lives result in a higher utility than saving just one life. But critics of the utilitarianism believe that flipping the switch constitutes a participation in the moral wrong, making one partially responsible for the death when otherwise the mad philosopher would be the sole culprit. An alternative view believes that inactivity under such a circumstance is also unethical. The bottom line: whatever you do, it is unethical. You are doomed either way.

It is reasonable to guess that your choice might vary if the single person happen to be your kid and the group of five consisted of four complete strangers plus your mother-in-law. In that case, you are simply assigning different utility values to different people (with the possibility of a negative utility). You no longer assume all people are equal. And if the group of five also included two other kids of yours, you simply assign the utility values and do the math and then make the "logical" decision (man, I am so cruel here!). This reminded me of a famous darn question people always get asked: if both your mother and your wife fall into the river and neither one knows how to swim, who should you save first? If you ever are asked this question, here's one answer you could use:

I'll jump into the river and drown myself, and we'll all go to heaven together. Now are you satisfied?

When it comes to artificial intelligence, a lot of times the choice is made based on a utility computation. Maybe the utility is computed using some fancy statistical functions. More advanced algorithms might take into consideration of probability or utility functions derived from past observations. Even more advanced algorithms might allow the agent to dynamically change or evolve the utility functions as time progresses -- a sense of learning. The agent will simply compute the utility values following whatever formulas it comes up with and then choose the option that will result with the highest utility. This is why AI agents or robots are normally considered to be very logical and at the same time very inhuman.It would be a long time before an AI agent would find itself trapped in this moral dilemma. (Remember the big computer in the movie War Games? It eventually figured out that the best winning strategy of playing the game of Tic-tac-toe was to not play the game at all).

So how would you design the AI agent or robot to be able to deal with morality, especially when you are giving it a weapon and grant it the permission to fire the weapon? Even we humans don't have clear clues in situations like in the Trolley Problem. Can we expect or require the agent or robot to do better than us? Unfortunately no one knows the right answer at the present time, we can only learn from our mistakes. Let's hope these mistakes are not disastrous and recoverable.

[Update on 8/2/2019]

Ten years have passed since I first posted this blog article. Today, many "self-driving" cars are already running on our roads (have you noticed those napping drivers in Teslas right next to you?), and there are only more to come with VCs and auto makers pouring money into this field. Now the Trolly Problem is becoming as real as it can be. When a self-driving car is faced with the dilemma of making a choice between killing the person on the left or four persons on the right, or even worse, when it needs to decide if it should sacrifice you, the passenger, in order to save four pedestrians, how would you feel about its logical choice? What if you are not the passenger, but the pedestrian, instead? Don't ask me. I don't have an answer.

Read Part 2: The Gettier Problem


Picture of the Day:

You can go here to see more animated portraits like this one.

BTW: The easiest way to remember my blog address is http://lanny.lannyland.com

Lanny's 2012 New Year Resolutions

First of all, Happy New Year to you all! Wish you all a very productive year ahead of you!!

Well, it's that time of the year again -- time to make a new list of new year resolutions. So what are you putting on your list this year? But before you start, maybe it's a good idea to pause for a minute and think how well you did with your resolutions in the past year.

One thing is for sure, the year of 2011 went by too quickly!! There were many things I wanted to finish but didn't. I am still working on my dissertation and there are still a lot left to be done. I didn't translate as much as I wanted and I also didn't post as many blogs as I had hoped. But the good thing is that I did translate some and I also did post some blogs. =) I also designed the robot I want to build and bought most of the parts. Still need to put them together and write some code to drive that thing. Let's hope that gets completed this year!

There are two very different methods of achieving success. One method is to really lower your expectations. For example, the Mars Rovers were only expected to work for 90 days, and now 6 years later, they are still working. What a great success. The other method is to set really high goals, and then even if you only accomplish a portion of what you set out to do, you would have already accomplished a lot. You'll probably find both methods applied in my new year resolutions.

Anyway, here's the resolution list for this year:

1. I will try my best to go to bed before midnight every day.
Maybe not getting enough sleep every day resulted in low performance and low efficiency. I'll make sure I get 7 hours of sleep each day this year! I also need more sleep because I'll be exercising more this year and I need the sleep to rejuvenate. (Method 2)

2. I will graduate before the world ends.
It has already been 5 years since I started grad school. Time is running out since my advisor's funding, my personal funding, and the world (according to the Mayan calendar) will all end soon. So I am DETERMINED to get my PhD before the world ends!! (Method 1)

3. I still hope I can post two blogs each day.
I actually started many drafts. The key is to complete them and publish! (Method 2)

4. I still plan to translate one page each day.
I actually translated quite a bit last year. Just didn't post them all because I wanted to mix robot related posts with translation related posts. I'll still try to stick to this plan this year! (Method 2)

It's 23 minutes past midnight already. Doh!! I better go to bed now! Wish you all have a great New Year Resolutions List and with you all stick to it!!



Video of the Day:

A great way to strength your lower back. Wish you a very healthy 2012! (And just love this mafia accent!)

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 4

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 3

第七式九鬼拔马刀

接上式，两臂分开成侧平举，手心向上。 然后右臂屈肘，右手至头后，腰略弯，头略左摆，食指中指第一关节夹住左耳垂，食指微提，中指微下压，并轻轻向右牵拉。 同时左肘弯曲，左手背贴背部上移于两肩胛之间，尽力上抬，手指向上，并向左转体；微屈膝，低头看右脚背。 而后身体慢慢恢复原势， ​​头左转向后看（左图）。 定式后约静立半分钟。 反方向再仿一次（右图）。

7^th Stance: Nine Ghosts Drawing the Saber

Continue from the last stance. Open your arms and move to the side at should height with the palms facing up. Then bend the right arm and reach your right hand behind your head. Bend your waist slightly and lean your head to the left slightly. Use the first joint of the index finger and the middle finger to grip the left earlobe. Lift gently with the index finger while pushing down gently with the middle finger and pull gently to the right. At the same time bend the left elbow and place the back of your left hand upward so it is between the two shoulders. Raise your left hand as high as possible. Point the fingers upward and turn your body left. Bend knees slightly and look down at the top of the right foot. Then slowly return body to the original position. Turn your head to the left and look behind your shoulder (see left figure). After completing the stance stand still for about half a minute. Then perform and stance in opposite direction once (see right figure).

第八式三盘落地

接上式，左脚向左跨一步，两脚尖外撇。 两臂侧平举，掌心向下。 而后两腿弯曲成骑马蹲裆势，同时两掌下按，与膝齐平。 然后两臂外旋，两手翻为仰掌，两腿同时缓缓伸直站立，两臂随之慢慢上抬成侧平举。 下按时呼气，意念两掌心，如按浮木﹔上抬时吸气，仿佛两掌心放有重物。 反覆做三至五次。

8^th Stance: Three Bases Dropping to the Ground

Continue from the last stance. Take a step left with the left foot and point the feet outward. Hold your arms out flat at the side of the body at shoulder height with palms facing down. Then squat down into a horse stance and pushing downward with both palms at the same time until they are at knee height. Then rotate both arms outward and turn both palms to face up. Slowly straighten both legs to stand up at the same time and naturally raise both arms so they are flat at the side of the body. Exhale when pushing down and set your mind on the center of the two palms as if you were pushing down floating logs in water. Inhale when raising the palms as if there were heavy objects inside the two palms. Repeat three to five times.

Again our friendly Mr. Bruce Wen happily demonstrates the two stances for you and explains what each  stance is good for. If he is right, then it is recommended that you perform these two stances at a location where a convenient restroom is nearby. Remember, Mr. Wen's version might be slightly different from the version I translated.

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 5


Picture of the Day:

 I wanted to check out Google's new 3D trip planner so I searched for driving directions from Orem, UT to China. It's really interesting that Google Map suggested "Kayak across the Pacific Ocean", and it only estimated 14 days and 5 hours for this feat! I figured that I might have a slight chance of accomplishing that if I can fully master the 12 stances of Tendon-Altering Sutra! LOL!

Seven Weapons - Longevity Sword: Chapter 2 (1)

Chapter 2: Palace of White Jade in Heaven

ONE

Bai Yujing^[1] was not in heaven, but on a horse.

His saddle was almost completely worn out; same goes with his boots and the scabbard of his sword. However, his clothes were brand new.

The scabbard dangled loosely against the saddle as the spring breeze gently stroked his face.

He was very cheerful and very comfortable.

The aged saddle was very comfortable for sitting; the well-worn boots felt very comfortable on his feet; the old scabbard would never cause damage to the sharp edge of his sword; new clothes always put him in high spirits and feel vigorous and energetic.

What he was most cheerful about, however, were not these things, but that pair of eyes.

In the horse-drawn carriage in front of him, a pair of charming eyes had been peeking at him all the time. This was not the first time he saw those eyes. He could still remember the first time when he saw those eyes. It was inside a small inn in a small town.

He had just entered the inn when she walked by and bumped into him.

Her lovely smile was filled with shyness and embarrassment, and her face was as red as the rain-soaked sunset.

He secretly hoped that she would bump into him again, because she was really a very attractive lady while he was really not a hypocritical gentleman.

The second time when he saw her, it was inside a small restaurant. He had just begun his third drink when she walked in. As soon as she recognized him, she hung her head with the sweetest smile.

The sweet smile was still filled with shyness and embarrassment.

At that time he smiled too, because he knew she would not have smiled again and again had she bumped into another person. He also knew that he was not an unattractive man, which he had always been very confident with.

Therefore even though he left first, he did not hurry with his journey.

As expected, her carriage had caught up with him by now, but did this happen by chance or by purpose? He was a rover who enjoyed wandering the world. Along his journeys, he had met all kinds of people.

Among them were red-bearded barbarians who roamed the grasslands outside of the Great Wall and heavily-armored cavalries who galloped the great deserts. There were also ill-tempered outlaws that would slaughter at the slightest argument, as well as young and daring champions of Martial World chivalry.

The endless wandering gradually worn his saddle and scabbard, and his beard grew thick and stiff.

But his life was always fresh and colorful.

He could never foresee in the next part of his journal what things might happen or what kind of people he would meet.

The spring breeze gradually grew chilly, and a misty spring shower suddenly spilled off the spring clouds, moisturizing his new spring outfits.

The carriage ahead of him halted. As he rode closer, he found that the curtains had already been rolled up and that pair of charming eyes gazed at him intently.

The charming eyes, a shy smile, a lovely face untouched by makeup, and a dress as vivid as the violet twilight made up a breathtaking scene.

She pointed at her delicate feet, then at his newly wetted clothes, her slender fingers as pretty as the scallions of the spring season.

He pointed at himself, then at the carriage.

She nodded, and then with a charming smile, opened the door.

The interior of the carriage was cozy and dry. The silky seat covers were as smooth as her skin.

He dismounted his horse and stepped up into the carriage.

The spring shower was tender and intimate – it rained just at the right time.

In spring time, the Heavenly Lord seemed to be very fond of arranging intriguing occasions to bring together fine people in fortuitous encounters.

There was neither the slightest bit of awkwardness, nor unnecessary words, as though it was his destiny to meet her and his destiny to sit in this carriage.

Along a lonesome journey and between a pair of lonesome travelers, no one could object to their cross of paths.

Just when he thought of wiping the rain drops off his face with his sleeve, she handed him a handkerchief of soft, red silk.

He gazed at her, but she hung her head to play with a corner of her dress.

“You’re welcome.”

“My name is Bai, Bai Yujing.”

She let out a charming smile and then chanted gently.

“A palace of white jade in heaven,

Has pavilions five and castles a dozen,

Where the deity stroked my pate and coiled up my hair,

And blessed me longevity as my welfare.”

“You like Li Bai^[2] too?” He smiled as well.

She entangled the corner of her dress to her slender fingers and began to recite in a low, lengthened voice.

“On the mountain of Lao by the east sea,

I once savored the violet twilight carefree,

Where I met the legendary immortal Elder An Qi^[3],

Who shared with me melon-sized fruits of jujube.

Only as a middle-aged man I called on his Majesty,

Failing my aspiration I return home despondently.

My once youthful face had withered in the spring sun,

And the graying of hair in life had inevitably begun.

I crave the golden elixir of eternity,

And to ride the carriage of clouds in serenity.

Up the heavenly terrace I follow the elder in pleasure,

To sweep fallen petals with the celestial at leisure.^[4]”

Her voice had a slight pause at the mentioning of the mountain of Lao.

“Miss Lao?” Bai Yujing guessed.

Her head bowed even lower, and a soft voice replied, “Yuan Zixia^[5].”

Suddenly the sound of galloping hooves echoed as three horses raced past the carriage, and three pair of sharp eyes glanced over the inside of the carriage.

As the horses sprinted forward, the last rider suddenly leapt off his saddle in a back flip and landed on Bai Yujing’s saddle twenty feet away. With a tap of his tiptoe, he hooked the scabbard that hung from the saddle and caught it with his hand.

The three horses suddenly turned around, and with another swift flip, the man returned to his own saddle at ease.

Only moments later, the three riders had disappeared into the hazy mist of shower, no longer to be seen.

“They stole your sword!” Yuan Zixia exclaimed, her beautiful eyes widening.

Bai Yujing only replied with a grin.

“You just watch them taking away your belongings and not do anything about it?” asked Yuan Zixia.

Bai Yujing grinned again.

“I heard that in the Martial World some people hold their sword as dearly as their own lives,” Yuan Zixia bit her lips and said.

“I am not that kind of person,” replied Bai Yujing.

Yuan Zixia sighed softly as if she was slightly disappointed.

Are there young girls who didn’t adore heroes? If you fight others to death for the sake of a sword, they might think of you as a fool, or they might even shed tears for you.

But if you simply watch it happen when others take away your sword, they would undoubtedly be very disappointed.

“Do you know much about the Martial World?” Bai Yujing looked at her and grinned once again.

“Not much. But I like hearing stories and watching with my own eyes.”

“Is that why you left home all by yourself?”

Yuan Zixia nodded and began toying with the corner of her dress once again.

“Fortunately you have not seen much; otherwise you’d for sure be disappointed.”

“Why is that?”

“Things you see are never as beautiful as the stories you hear.”

Yuan Zixia wanted to ask more, but then refrained from the urge.

Right then, sound of galloping hooves suddenly filled the air again. The three riders that had zoomed by them returned.

The leading rider suddenly leaned backward toward the side and extended his arm. In the next instant, he had gently returned the scabbard back to its former place alongside the saddle.

The other two riders bowed slightly with cupped hands[6], and moments later, all three disappeared into the hazy mist yet again.

Yuan Zixia’s eyes widened from the shock and excitement.

“They brought your sword back!”

Bai Yujing grinned.

“You knew they were going to bring it back?” Yuan Zixia blinked.

Bai Yujing grinned again.

“They seemed to be afraid of you!” Yuan Zixia gazed at him, her eyes glowed with enthusiasm.

“Afraid of me?”

“Your…your sword must have killed many people!” Yuan Zixia exclaimed, her voice trembled from excitement.

“Do I look like someone who has killed before?” Bai Yujing asked.

“Not really,” Yuan Zixia had to admit.

“I didn’t think so either.”

“But why are they afraid of you?”

“Maybe they are afraid of you, not me!”

“Me? Why would they be afraid of me?” Yuan Zixia giggled.

“One smile can crumple a city, and a second smile can crumple a kingdom^[7]! Even the sharpest sword is no match for a beauty’s smile,” Bai Yujing exclaimed.

Yuan Zixia’s smile became even sweeter. Eyes winking, she asked, “Are you…are you afraid of me?”

Her eyes seemed to be suddenly radiating with irresistible power, as though she had just posed a challenge for him.

“I guess you wouldn’t take no for an answer!” Bai Yujing heaved a sigh.

“If you are afraid of me, shouldn’t you do as I say?” Yuan Zixia bit her lips again.

“Naturally!” replied Bai Yujing.

“Good! Then I want you to have a drink with me,” Yuan Zixia commanded with a pretty smile blooming on her face.

“You can drink?” Bai Yujing was caught by surprise.

“Do I look like someone who can drink?”

“You do!” Bai Yujing answered with another sigh.

He had no choice but to admit, because he knew very well whether it was drinking or killing, one could never tell who’s good at it just from his or her looks.

---

[1] “Bai Yujing” means palace of white jade, the same words used in the first line of the poem at the beginning of chapter 1.

[2] Li Bai (701-762), a famous poet of the Tang Dynasty, the author of the poem recited here.

[3] An Qi (nicknamed Thousand-Year-Old Elder) was a Taoism philosopher during the Qin (221-207 BC) and Han (202 BC-220 AD) eras. He was said to have become a celestial after taking some potion he had made himself. He was a very important figure in history because he set the example of becoming a celestial from taking magical pills.

[4] Another poem by Li Bai and my pathetic attempt at translating it.

[5] “Zixia” means violet twilight in Chinese. In the original poem in Chinese, the phrase “mountain of Lao” was right next to the phrase “violet twilight”, hence, the wrong guess on Bai Yujing’s part.

[6] A traditional way of greeting in Chinese culture.

[7] Excerpts of a poem describing the beauty of Madam Li, sister of the poet Li Yannian, who later became the imperial concubine of Emperor Wu of the Han Dynasty (202 BC-220 AD). The story about the power of a beauty’s smile came from a real historical event. During the ruling of Emperor You of the Western Zhou Dynasty (1100-771BC), the imperial concubine Bao Si never smiled. In order to make his lover smile, Emperor You followed the advice from his minister and lit the war signal fire used to summon warlords to protect the empire from the northern barbarians. The chaos created by the many armies hurrying in did make the imperial concubine smile, but also angered the many warlords, so when the northern barbarians really invaded the capital a few years later, no warlord showed up to protect the capital despite the war signal fire. The emperor and his minister were both killed, which marked the end of the Western Zhou Dynasty.

Now support the translator Lanny by following my blog and leaving comments! :)

Video of the Day:

Jet Li demonstrating on a talk show why Tai-Chi is more than an old-men exercise.

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 3

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 2

第五式倒拽九牛尾

接上式，左手由上经左侧至左胯外侧，掌心向上，手指内屈，右手由背后伸至肩高时屈肘，变成虚握拳，上体与左腿成一条斜线，与地面约成45度。 右脚向右跨一步，同时向右转体90度成右弓步势，右膝关节弯曲，膝盖不超过脚尖，外形动作似用力拉车状。 呼吸自然，意念两手心。 然后身体左转，左脚向前上一步，左手伸向前，右手伸向后，动作相同，方向相反（右图）。

5^th Stance: Pulling Nine Bulls by Their Tails

Continue from the last stance. Move left hand downward past the left side of your body until it reaches the outside of the left hip. Turn palm facing upward and bent the fingers inward slightly. Raise the right hand up from behind your back until the arm is at shoulder height, then bend the elbow and transform palm into a hallow fist. The upper body and the left leg should now be inclined to form a 45 degree angle with the ground. Move right foot one step to the right and at the same time turn your body right 90 degrees and from a front stance toward the right. Bend the right knee but the knee should not exceed the toes of the right foot. The posture resembles pulling hard on a wagon. Maintain natural breathing and focus your mind on the two palms. Then turn your body left and take a step forward with your left foot. Reach the left hand forward and extend the right hand back. The movements are the same just to the opposite direction (see right figure).

 

第六式出爪亮翅

接上式，右腿用力蹬地，向前上一步，落于左脚内侧，成立正姿势。 两臂均回收于腰间，拳心朝上。 然后两拳变掌，同时向前推掌，掌心向前，指尖与肩斋平。 向前推掌要重如推山。 推掌时意想推窗望月，返回时五指微张，慢慢收向两胁，意想海水返潮。 反覆七次。

6^th Stance: White Crane Spreading Wings and Extending Claws

Continue from the last stance. Firmly push the ground with the right leg and then take a step forward so the right foot lands next to the inside of your left foot and you are standing straight (the Attention position in military drills). Retract both arms back next to your waist still holding fists with the palm side facing upward. Then open the fists and shift hands into the palm form. At the same time push your palms forward. The centers of your palms should be facing forward, and the finger tips should be at shoulder height. Push palms forward as though you were pushing a giant mountain. Imagine that you are pushing windows open so you can appreciate the beauty of the moon when pushing palms forward. When retracting the arms, slightly separate the fingers and slowly retract arms back to the sides of your waist. Imagine the tidal waves retracting to the ocean. Repeat seven times.

Now let's see how Mr. Bruce Wen does it and explains it. Remember, it might be slightly different from the version I translated.

The Twelve Stances of Yi-Jin-Jing (The Tendon-Altering Sutra) Part 4


Video of the Day:

I also do this intense abs workout twice a day! It's a good one!

AI Robot Related Conferences and Journals For My Research (Part 6)

AI Robot Related Conferences and Journals For My Research Part 5 

I have discussed several top conferences related to my research. Now moving on to top symposiums. These symposiums are like workshops where new ideas are presented and discussed to get a reality check from the fellow researchers and also to brainstorm. However, they normally last for several days and give the participants plenty of time to collaborate and discuss things.

Top Symposiums
==================================================================

RO-MAN -- IEEE International Symposium on Robots and Human Interactive Communications

RO-MAN workshop/symposium addresses fundamental issues of co-existence of human and intelligent machines such as robots and recent advancements of technological as well as psychological researches on every aspect of interactive communication and collaboration between robots and humans. Originally founded by several Japaneses researchers in 1992, the symposium has grown to attract much attention from researchers around the world. For example, the last RO-MAN included papers from 17 different countries. Solicited subjects cover a wide range including (but not limited to) ones such as socially interactive robots, entertainment robots, human assisting robots, human training robots, education robots, and robotic arts.

The RO-MAN symposium/workshop is a two-track event held annually, therefore, relatively small, holding about 70 to 280 participants. Papers accepted are mostly six pages long. I have never attended the RO-MAN symposium, and I couldn't find any information on the acceptance rate of the workshop. I would guess the acceptance rate is much lower compared to the top conferences I had blogged about before

Since the last RO-MAN symposium just happened last month, the location for the next RO-MAN symposium Ro-Man 2012 (the 21th) is still unknown at this point.
Conference Dates: July 31-August 3, 2012 (roughly)
Submission Deadline: March 1, 2012 (roughly)



AAAI Spring/Fall Symposium Series

The AAAI Spring/Fall Symposia are great places to meet peer researchers in a more intimate setting and a relaxed atmosphere to share ideas and learn from each other's artificial intelligence research. The topics might change each year depending on symposium proposals received. Multiple symposiums of various topics will be held simultaneously and participants are expected to attend a single symposium throughout the symposium series. Besides the selected participants by the program committee (authors of accepted papers), only a limited number of people are allowed to register in each symposium on a first-come, first served basis, due to limited seats (the Symposium series are actually quite popular).

The Fall Symposium series is usually held on the east coast at Arlington, Virginia during late October or early November.

Each symposium will have a distinct research interest. For example, the AAAI 2011 Fall Symposia have the following seven topics:

•     Advances in Cognitive Systems
•     Building Representations of Common Ground with Intelligent Agents
•     Complex Adaptive Systems: Energy, Information and Intelligence
•     Multiagent Coordination under Uncertainty
•     Open Government Knowledge: AI Opportunities and Challenges
•     Question Generation
•     Robot-Human Teamwork in Dynamic Adverse Environment

The last one about Robot-Human Teamwork would be the one I am interested in. Sometimes you can find the papers accepted at the symposium-specific web sites. But they really want you to buy the technical report at $35.
 
The next AAAI Fall Symposia AAAI 2011 Fall Symposia will be held at Arlington, Virginia, USA.
Symposia Dates: November 4-6, 2011
Submission Deadline: May 20, 2011


The next AAAI Fall Symposia you can submit a paper to is AAAI 2012 Fall Symposia
Symposia Dates: November 4-6, 2012 (Roughly)
Submission Deadline: May 20, 2012 (Roughly)

The Spring Symposium series is typically held during spring break (generally in March) on the west coast at Stanford. This one is actually my preferred one because Stanford University is not that far away from Utah, and I also lived in the neighborhood for three months.

The next AAAI Spring Symposia include the following six topics:

•     AI, The Fundamental Social Aggregation Challenge, and the Autonomy of Hybrid Agent Groups
•     Designing Intelligent Robots: Reintegrating AI
•     Game Theory for Security, Sustainability and Health
•     Intelligent Web Services Meet Social Computing
•     Self-Tracking and Collective Intelligence for Personal Wellness
•     Wisdom of the Crowd

 I have never attended either the Spring or Fall Symposia, but I was the co-author of a paper that got accepted at the AAAI Spring Symposium 2009 under the topic Agents that Learn from Human Teachers. It would be great if I could publish here again in the near future. It's always fun to visit the Silicon Valley!

The next AAAI Spring Symposium AAAI 2012 Spring Symposia will be held at Stanford University, Palo Alto,California, USA.
Symposium Dates: March 26-28, 2012
Submission Deadline: October 7, 2011



A good friend of mine, Janet, passed away this morning because of Acute Leukemia. Wish her peace in heaven! Lessons learned: Complete all those projects you want to do before a doctor tells you that you only have 5 days to live. Let's see, I need to finish my PhD, finish translating SPW, finish building a robot, and make up all the blog posts. Man! I better get working!

Robot of the Day: Panasonic's Hair-Washing Robot

Washing your hair might not be a difficult or tedious task that needs to be automated, unless you are a disabled person, an elderly, or a nurse at a hospital who has to give many patients many hair washes everyday.

At the International H.C.R. Exhibition (International Home Care & Rehabilitation Exhibition) 2010 held at Tokyo last year, Panasonic demoed a prototype robot that's capable of washing a person's hair autonomously. That robot had 16 fingers. In the upcoming H.C.R. 2011. Exhibition that will be held next week at Tokyo, Japan, Panasonic will demon a newer version of the hair-washing robot, one with 24 fingers and supposedly capable of delivering a more comfortable wash.

The hair-washing robot, with the size of a washing machine, is fully automous and can perform all the tasks of your regular hairdresser from wetting to shampooing, rinsing, conditioning and drying. It can even give you a head message at the end of hair wash like how most hairdressers do it in China. The robot first scans the shape of the person's head and then uses two robotic arms to guide the 16 fingers to work on your head. Sensors built into these fingers also make sure they apply the right amount of pressure to your head so your head does not explode. The video below shows you how the robot works.

In the video the robot only worked on a dummy. I would have liked to see a real human getting served by the robot. I don't know if real human have been used to test the robot, but I am pretty sure this kind of experiments would never get approved by the IRB at the universities here in the US. (On a side note, all those military robots never seem to run into this IRB problem, somehow.)

It would be really fun to open a shop equipped with these robots. For now people would just walk in to get a hair wash and massage. In the future, customers might also get a haircut in these unmanned barber shops. That would my idea type of robots -- robots that work and make money for me, so I don't have to. LOL! Of course one challenge is to help people overcome their fear of the robot malfunctioning. In fact, the lack of regulations and rules regarding the liabilities and safety of such kind of robots (robots with close human-robot interactions) is the precise reason why Panasonic has not commercialized the robot. Rumor has it that the situation will change dramatically during the year of 2012.

To be honest, I don't mind having one of these at my house if I don't have to pay for it. I'll even wash my hair once a day! But what I really need is a robot that can wash my kids autonomously several times everyday. Somehow they are always dirty!





Now I know why some people don't hate mowing the lawn, because they either have a robot lawn mower or they have a self-propelled lawn mower (which counts as a half-robot). I got one of those self-propelled lawn mowers, and man, what a difference! Now mowing the lawn feels like walking the dog.