Tokyo stocks ended higher Monday, with the Nikkei index rising over 2 percent, lifted by artificial intelligence- and semiconductor-related shares amid hopes for further expansion of the chip business.The U.S. dollar traded mostly around the 156 yen line in Tokyo but lost ground in the afternoon, later plunging to a roughly six-month low against the yen in the 154 yen zone on speculation that the Bank of Japan may decide on an additional rate hike at its policy meeting this month.The 225-issue Nikkei Stock Average ended up 1,378.90 points, or 2.12 percent, from Friday at 66,399.84. The broa…READ FULL ARTICLE