Saturday, November 9, 2013, morning, 4th floor, Akiyama Sora)

"The combination of deep learning and SLAM technology...... Xu Mingshan: Are they also trying in this direction?"

Sora Akiyama took a sip while looking at the screen in front of him. Due to the time difference, it was afternoon on the other party's side at this time, and he was checking the progress of Xu Mingshan and the others through remote control.

SLAM is an abbreviation for "Simultaneous Localization and Map Creation", and it is a series of technologies used to determine the trajectory of the environment and build a map, and it is used in a wide range of applications, such as Akiyama Sky's smart cameras and drones. Due to his limited energy, he did not delve into the SLAM algorithm, and could only be regarded as dabbling.

"I don't think there is a special advantage of deep learning in SLAM...... Well, let's take a look at the video of the confrontation first. ”

Akiyama clicked on the video stored in the computer and began to watch the competition between Du Mu and another boy. Their swordsmanship level is obviously much higher than that of Yuta Tomigashi and others, whether it is reaction, body technique, speed, and strength, they are very strong, and they also seem to have the so-called "master style". As for the confrontation videos of other people, it can be seen that the level is not as good as these two.

"Huh, one-on-two?"

Sora Akiyama tapped the fingers of his left hand lightly on the desktop, and his right hand operated the mouse to open the file. The video is not very long, but Du Mu's strong posture is fully revealed in it, showing his profound skills and undisturbed state of mind.

"Xu Mingshan can't even stop a move? This level ...... Well, it still seems to be better than me. Thinking of this, he touched his jaw a little embarrassed, and felt that weapon fighting was not as good as Xu Mingshan, "Could it be that this is the so-called 'kung fu is an inch higher, and it is so high that there is no edge'?"

Sora Akiyama looked at the 3D dynamic model they had built, and to be fair it was a good thing for enthusiasts, maybe it could be used for martial arts teaching, but there was nothing surprisingly innovative. He shook his head, quit remote control, and started working on his home computer - time was a bit tight lately, and there was a lot to do.

As a scientist whose research focuses on theory and calculation, Akiyama himself rarely does experiments himself, but more often does work such as deriving formulas, designing and practicing algorithms, and analyzing experimental data. Because of this, he can work from home and have a relatively free schedule.

……

(Saturday, November 23, 2013, morning; Lake Biwa next to Okoto Hot Spring)

Before you know it, it's late November. After spending more than ten days of fulfillment, Sora Akiyama's research work slowed down temporarily, so he decided to have a good time today at the suggestion of Tomoyin Nanamiya.

Sora Akiyama lives next to the mouth of the river, but they don't plan to row on this uneventful waterway like [Nanamiya Tomoon] in the parallel world, so they plan to drive to Lake Biwa near Okoto Onsen after researching information.

Although self-driving cars have legally entered the market, Sora Akiyama still drives the whole process himself, so that he does not gradually forget the driving skills he has not used much after taking the driver's license. It took less than 40 minutes to get from the apartment to the hot springs, and the two walked to the lake after parking.

Today's weather is fantastic, with clear blue skies dotted with white clouds, sunlight streaming through the slanted foliage, and the mountains on the other side of the lake blue and green. There aren't a lot of tourists here, but two or three clear plastic balls, one or two in each ball, float on the sparkling waters of Lake Biwa.

"Akiyama, let's go play with that!"

Nanamiya Tomoon grabbed his hand with a little excitement and ran quickly towards the water project. Because she planned to play in the water, the girl rarely wore a skirt, but she still wrapped a special scarf that was not afraid of getting wet.

This scarf is hopeless...... Sora Akiyama thought so, and took Tomoyin Nanamiya's hand to the ticket office.

"Plastic balls, transparent water pipes...... Paddleboarding, kayaking, and so on, there's a lot of fun to be had!"

Sora Akiyama finished reading the list of water sports and subconsciously looked towards the "pier" by the lake, where two instructors were teaching a pair of tourists how to row in harmony in the shallow water on the shore. He hesitated for a while, and finally held back the two scarlet sentences that he almost blurted out, "can also race".

"Well, that paddleboard surfing standing up seems to be fun. Nanamiya Tomoin winked at him, his long black eyelashes twitching slightly, and his blue pupils exuded cheerfulness, "What does Akiyama think?"

"Sure enough, the heroes see something the same way? I think so too, it's time to show the real skills!"

Because there are not many tourists, there will be an instructor to take them soon after purchasing tickets. Sora Akiyama and Tomoon Nanamiya stored their mobile phones and other valuables, put on their life jackets, and started their first attempts on the shallow beach near the shore.

"My name is Ginnosuke Kurigen, and I'm glad to be your coach. ”

Ginnosuke Kurigen is a middle-aged man in his forties with a rather enthusiastic attitude. Perhaps because of the practice of martial arts, Akiyama Sora and his skills were good, and it didn't take much time to master the essentials of balance.

"Your motor cells are really good. ”

The coach instructed them as he handed them the waterproof alarm: "Remember, it's best not to go too far from the shore, and then if there is any emergency, press this alarm, and our lifeguards will rush over." Have fun!"

"Well, thank you, Uncle Liyuan!"

Sora Akiyama and Tomoon Nanamiya waved at each other, then looked at each other and smiled, shaking the oars and paddling slowly into the lake. The reflection on the surface of the lake is shattered by the gently undulating waves, and the Lake Biwa Bridge in the distance spans the north and south, which separates the water from the sky. The sun shines warmly on the body, but the gentle breeze brings a slight cool feeling.

"The clear sky is so blue, the waves are so sparkling, and the sky and the earth are so vast!"

Nanamiya stretched her body, carefully maintaining her balance, and laughed out loud on the open water. Seeing this situation, Akiyama couldn't help but say:

"If there is love in the sky, I am ...... Ahem, ahem, ahem, ahem!"

The girl turned around when she heard the sound and asked curiously, "What is Akiyama talking about?"

"I didn't ...... Nothing, really nothing. His face was slightly embarrassed, "Well, there are some things that are not suitable for interpretation in public." ”

"Hmph, if you don't say it, I can probably guess what it is!" Nanamiya Tomoin rowed the oar and leaned over, grinning very cutely, "What are you playing all day long!"

Sora Akiyama didn't say anything, but smiled and took the other party's hand. The girl's hands are delicate and tender, and they are warm in their hands, just like their energetic body. Nanamiya's arm strained slightly, bringing the skateboard closer to the two of them, and then leaned on his shoulder and rubbed it.

"Let's paddle that way. Akiyama turned his head and kissed the other man's hair lightly, then paddled with the oar in his left hand, but the right hand holding the girl tightened.

"Hmm. Nanamiya Tomoin replied with a smile on his face, and rowed with one hand, following his example.

As time passed, the sun was rising, and even though it was already winter, the blazing sun still made Akiyama and Sora feel a little dazzling, and with the sore arms caused by paddling, they decided to go back to shore to rest.

……

(Saturday, November 23, 2013, afternoon; Mt. Hiei)

After lunch and a short break at the Lake Biwa Otsu Prince Hotel by the lake, Sora Akiyama and Tomoon Nanamiya drive to Mt. Hiei. This mountain is located in the northeastern corner of Kyoto City, Kyoto Prefecture, Japan, and is home to Enryakuji Temple and Hiyoshi Taisha Shrine, which have a long history and flourish with incense. I don't know if it's the interference of the Galaxy Federation, but the believers who used to be in an endless stream are now said to be much less.

After parking the train, the two bought tickets at the ticket vending machine and boarded the two-kilometer sightseeing train, which is said to be the longest in Japan, to enjoy the beautiful scenery along the way.

Unlike other places, the seats here are arranged in a stepped pattern with low front and high back, and the driver's cab is located at the rear of the car, as if to allow all passengers to enjoy the view. As the train moved, the scenery on both sides changed rapidly, and they sometimes burrowed into the dense forest, sometimes saw the light of day.

"If Mori-sama is here, he must be very excited, right?" Nanamiya Tomoon looked thoughtfully at the various plants that were rapidly receding next to him, "With so many kinds of herbs, it must be very good to use them to refine magic potions." ”

Akiyama looked at the bushes and ferns on both sides of the track, stretched out his right hand and interlocked his fingers with the other party, and then smiled and said, "Probably, but you are not allowed to get off the bus along the way, and I don't know if there is a hiking path?"

"Well, I feel like I'm exploring a wonderland......"

Sora Akiyama and Tomoon Nanamiya chatted casually while admiring the mountains and forests along the way. As the height increases, the types of vegetation also change, and the tall and straight cedar gradually dominates. Driving out of the dense forest, the window is full of green trees, which is really pleasing to the eye. It's a bit of a pity that the exterior of the windows is stained with a lot of dust, which inevitably has some stains and reflections.

After eleven minutes of travel, the train stops at the final station, Enryakuji Station. Sora Akiyama and the others got off the train and went to the observatory outside the station to overlook Lake Biwa. From such a distance, the surface of the lake is slightly hazy, and the bridge across the lake is as thin as a line, and the Mt. Ibuki and Mt. Ontake on the other side seem to be covered with a veil.

"Let's go, there's still some way from here to the east tower of Enryakuji Temple. ”

Sora Akiyama took the girl's hand, and the two walked side by side on the winding mountain road with few pedestrians. The roadside signs are clear and clear, the shadows of the trees are slanted between the trees, and from time to time you can occasionally see small Buddha statues carved in stone, the texture of which has been blurred by the wind and sun. They were talking about love without a pair, and before they knew it, they had arrived at the entrance of the East Tower.

The three major temple complexes of Mt. Hiei are the West Tower, the East Tower, and the Yokogawa River, and there are buses that can be used in between, but the two of them don't live far away and don't need to see so much at once like a tourist.

Mt. Hiei has been regarded as a sacred mountain for the guardians of Kyoto since ancient times, and is said to be the birthplace of Buddhism in Japan. Sora Akiyama scoffed at this: "I think they have to learn one more to improve their posture." I'm genuinely anxious for them. ”

There are many trees next to the entrance of the east tower whose branches and leaves are already red and yellow, and there are also light poles that have fallen off their leaves, but there is also no lack of firm evergreen vegetation. A short walk from the entrance is a wooden building called Daikokudo, with a row of golden lanterns hanging under the slightly upturned eaves.

It is dedicated to the god Daikokuten, who is considered by the Japanese to be not only the protector of Buddhism, at least traditionally, but also the god of agricultural harvest and wealth. Sora Akiyama and Tomoin Nanamiya are obviously not devout Buddhists, so they just learned about it casually and didn't take it to heart.

They followed the stairs higher and came to Manjushri after passing through a small forest. It's a two-storey building with a tiny bell in front of it. The trees around the building are red and yellow, which complements the red and black painted building itself. When they got closer, they realized that the wood of the building was quite quaint, and it seemed that it had not been specially painted for maintenance.

Further on, there is the "Root Hall" dedicated to Yakushi Nyorai. Larger than the previous two combined, the building is said to have been built by the founder himself, and the "inextinguishable lantern" in front of the Buddha statue is said to have been burning for more than 1,200 years. Like the Manju Building, the color here is also dominated by red, and the wood is deliberately maintained with an old appearance.

"Why didn't you see any Buddhist techniques along the way?" Nanamiya Tomoyin muttered with some dissatisfaction.

"That kind of thing...... There's no way you're here, right?" said Sora Akiyama as he rubbed the girl's hair.

The two of them continued to walk, visiting the Great Lecture Hall and the Ring Altar Temple, and then came to the National Treasure Hall. Unlike other monastic buildings, the style of this museum is closer to modern architecture. To the regret of Nanamiya Tomoyin, the various treasures collected here do not include magic spirit costumes.

After that, Akiyama and Sora shuttled through the forest paths, visiting the "Great Spirit Garden", "Amitabhado" and "Hokke Temple" in turn, and then walked nearly a kilometer of the mountain road to the West Tower. They watched the scenery along the way, felt the profound humanistic atmosphere in the temple, and chatted about some secondary two techniques from time to time, and an afternoon passed in a blink of an eye.

Sora Akiyama and Tomoon Nanamiya return to the apartment in the evening. At parting, the girl rubbed hard in his arms, kissed him with a smile, and then went home to rest with a smile, probably to cope with the rest of the homework.

……