Point of attack的問題，透過圖書和論文來找解法和答案更準確安心。 我們找到下列包括賽程、直播線上看和比分戰績懶人包

Force of a Cyclone: The Battle of Stones River, December 31, 1862-January 2, 1863

為了解決Point of attack的問題，作者Davis, Caroline Ann 這樣論述：

All of middle Tennessee held its breath when the new year dawned in 1863.On the previous day, December 31--the last day of 1862--just outside Murfreesboro along Stones River, the Confederate Army of Tennessee had launched a morning attack that nearly bent the Federal Army of the Cumberland back u

pon itself.The two armies, nearly equal in size, had prepared identical attack plans, but the Confederates had struck first. Fighting throughout the day, amid the rocky outcroppings and cedar groves, proved desperate. Federals managed to hold on until dark, but as the last hours of the old year slip

ped away, the Army of the Cumberland faced possible annihilation.The armies rang in the New Year to the sounds of suffering on the battlefield, although the armies themselves remained largely still.Meanwhile, hundreds of miles to the east, President Lincoln signed the Emancipation Proclamation. He n

eeded battlefield victories to bolster its authority, but thus far, those victories had eluded him. The stakes for the Army of the Cumberland, in the wake of other Federal failures were enormous.But the fighting along Stones River was not over. On January 2, Confederates launched another massive ass

ault.In Force of a Cyclone: The Battle of Stones River, December 31, 1862-January 2, 1863, authors Caroline Davis and Bert Dunkerly explore a significant turning point of the Civil War--a battle that had the highest percentage of casualties on both sides. Lincoln himself often looked back on that fr

agile New Year’s Day and all that was at stake. ＂I can never forget whilst I remember anything,＂ he told Federal commander Maj. Gen. William S. Rosecrans, ＂that about the end of last year and the beginning of this, you gave us a hard-earned victory, which, had there been a defeat instead the nation

could scarcely have lived over.＂

Point of attack進入發燒排行的影片

貝氏最佳化的小樣本採集函數學習

為了解決Point of attack的問題，作者謝秉瑾 這樣論述：

貝氏最佳化 (Bayesian optimization, BO) 通常依賴於手工製作的採集函數 (acqui- sition function, AF) 來決定採集樣本點順序。然而已經廣泛觀察到，在不同類型的黑 盒函數 (black-box function) 下，在後悔 (regret) 方面表現最好的採集函數可能會有很 大差異。 設計一種能夠在各種黑盒函數中獲得最佳性能的採集函數仍然是一個挑戰。 本文目標在通過強化學習與少樣本學習來製作採集函數(few-shot acquisition function, FSAF)來應對這一挑戰。 具體來說，我們首先將採集函數的概念與 Q 函數 (Q

-function) 聯繫起來，並將深度 Q 網路 (DQN) 視為採集函數。 雖然將 DQN 和現有的小樣本 學習方法相結合是一個自然的想法，但我們發現這種直接組合由於嚴重的過度擬合(overfitting) 而表現不佳，這在 BO 中尤其重要，因為我們需要一個通用的採樣策略。 為了解決這個問題，我們提出了一個 DQN 的貝氏變體，它具有以下三個特徵: (i) 它 基於 Kullback-Leibler 正則化 (Kullback-Leibler regularization) 框架學習 Q 網絡的分佈(distribution) 作為採集函數這本質上提供了 BO 採樣所需的不確定性並減輕了

過度擬 合。 (ii) 對於貝氏 DQN 的先驗 (prior)，我們使用由現有被廣泛使用的採集函數誘導 學習的演示策略 (demonstration policy)，以獲得更好的訓練穩定性。 (iii) 在元 (meta) 級別，我們利用貝氏模型不可知元學習 (Bayesian model-agnostic meta-learning) 的元 損失 (meta loss) 作為 FSAF 的損失函數 (loss function)。 此外，通過適當設計 Q 網 路，FSAF 是通用的，因為它與輸入域的維度 (input dimension) 和基數 (cardinality) 無 關。通過廣

泛的實驗，我們驗證 FSAF 在各種合成和現實世界的測試函數上實現了與 最先進的基準相當或更好的表現。

The Hardest Battle: The Canadian Corps and the Arras Campaign 1918

為了解決Point of attack的問題，作者Stewart, Wiliam F. 這樣論述：

The Canadian Corps’ Second Arras campaign was its most significant operational assignment of the war. More pivotal than Vimy, Passchendaele, or Amiens, its task was to smash through a 15-kilometer zone of five fortified positions including the formidable Drocourt-Quéant Line and then cross the Canal

du Nord. In doing so, it would rupture the German defenses on the Western Front. The commander of the Canadian Corps, Lieutenant General Sir Arthur Currie, considered the Corps’ actions in the campaign as ’the hardest battle in its history.’ In his diary, he wrote he thought it a greater victory th

an Amiens.The German High Command, well aware of the sector’s vital importance, defended it with all they had. The German formations that fought there deemed it momentous. Multiple elite divisional histories regarded it as one of the high points of their service in the First World War. Three German

commanders received the rare Pour le Mérite, the highest German military order, for their performance at Arras 1918.As Corporal Albert West of the 43rd Battalion wrote, ’If Germany cannot hold us here she cannot hold us at all.’ It represented the German’s best opportunity to stop the Canadians duri

ng the Hundred Days. Unlike Amiens, the enemy expected an attack, defended a deep and heavily fortified zone, had ample reserves, and was fighting over terrain scarred by years of intense combat. Depleted in numbers, tired, and with lowered morale, German infantry - Landsers - still fought staunchly

when they had the advantage. Their machine gunners continued to battle with skill and died hard. Hostile artillery was not the formidable force of 1916 and 1917, but it was difficult to fully suppress it. It remained a factor despite the best Canadian efforts. Unlike Amiens, the famous tank battle,

the Corps did not benefit from surprise, masses of tanks, or an elite corps on its flank. Instead, it experienced hard, brutal combat at an unrelenting pace. What is more, the battle opened with only two of the Corps’ four divisions. At no point did Currie have all four Canadian divisions available

to attack.The book chronicles and analyses the nine-day campaign running from 26 August to 3 September 1918. Based on exhaustive research from Canadian, British, and German sources, it provides an in-depth operational history of the campaign that explains the Canadian Corps’ successes and failures.

While it did reach the Canal du Nord, it could not cross it, but it still triggered a large-scale German retreat across a broad front. It provides a lens to examine why the Corps was so much more successful than the British had been in 1917 on the same ground. This then gives the necessary context

to provide an answer to a larger question of men, matériel, morale, or method as the prime reason for the German defeat and Allied victory in this stage of the Hundred Days campaign.

布里斯洛中間體自由基反應機制之理論研究

為了解決Point of attack的問題，作者謝明修 這樣論述：

含氮雜環卡賓（N-heterocyclic carbene）催化之化學反應中，布里斯洛中間體（Breslow intermediate）扮演重要的催化角色。布里斯洛中間體能以親核基（nucleophile）或自由基（radical）之形式參與反應。本論文探討布里斯洛中間體之自由基特性及形成機制（mechanism），其自由基可從氫自由基轉移或直接氧化形成。安息香縮合反應（benzoin condensation）中，布里斯洛中間體將氫原子轉移至苯甲醛（benzaldehyde）以形成自由基，此自由基可結合形成安息香產物，或排除反應之副產物，使其重新進入催化反應。唯此路徑之反應能障高於傳統非自

由基路徑。此研究亦探討四種布里斯洛中間體之不同電子組態的位能面。其中烯醇鹽（enolate）形式能產生偶極束縛態（dipole-bound state），此為產生自由基之新路徑；拉電子基（electron-withdrawing group）以及立體障礙基（bulky groups）可穩定基態。另外，我們亦研究布里斯洛中間體之碎片化（fragmentation）與重組（rearrangement）。布里斯洛中間體之催化反應可能因其碳氮鍵斷裂而中止，形成碎片。我們證實其反應中可以形成自由基，亦可形成離子。反應趨向之路徑與布里斯洛中間體之羥基的質子化型態有關。碎片化反應亦可視為轉酮醇酶（tran

sketolase）中之噻胺（thiamin）催化反應中之副反應；此研究證實轉酮醇酶透過限制布里斯洛中間體之結構與質子化型態，使其碳氮鍵斷裂需更高之反應能量，進而抑制此副反應。