91嫩草

In terms of academic accomplishments, Geoff has more than 250,000 citations, with more than half in the last five years. He has an astoundingly high H-index of 142. He was the co-inventor of the seminal work on Boltzmann Machines and backpropagation using gradient descent (published in 1983 with Terry Sejnowski, and the Nature paper with David Rumelhart in 1986). This work introduced the idea of hidden layers in neural networks, along with a mathematically elegant and computational tractable way to train their affiliated parameters. Hidden layers freed the software from “human control” (such as expert systems) and back propagation allowed non-linear combination to essentially discover prominent features (in a more goal-directed way than humans) in the process. However, it turned out that these ideas were before their time, as there were not enough data or computing power to enable these theoretical approaches to solve real-world problems or beat other approaches in competitions. The early-1980's were dominated by expert systems, which became discredited in by late-1980's when they were proven to be brittle and unscalable. What displaced expert systems was not Geoff's proposals (which were too early), but simplified versions of neural networks which were compromised to work with less data and computation. My Ph.D. thesis (using hidden Markov models) was among them, and these simplified approaches were able to make some contributions with some applications, but like expert systems, they were not able to scale to the hardest problems (such as playing Go, human-level speech or vision).

2017年，江门镇统一规划搬迁了162户贫困户，在从村里搬迁到镇上的同时，这些村民也实现了“产业的转移”，从农业生产发展为以木耳为主导产业的多种经营模式。曾维刚告诉成都商报记者，自古以来依赖种地的双莲村，它的农业特性正在逐渐消失，“就我了解，像李定开家种10来亩地的村民，在双莲村已经不超过5户”，曾维刚说，更多村民靠打工收入，同时发展竹子产业。

关于流动性压力问题，深交所提到，公司报告期末账面货币资金余额 13.55 亿元，较去年同期减少 34.20%，占总资产比例为 6.57%，较去年同期下降3.77 个百分点。一年内到期的非流动负债共计 16.63 亿元，高于账面货币资金余额。从财务指标来看，公司流动比率为 0.66，去年同期为 2.07，降幅显著。对此，深交所要求公司列表说明公司货币资金存放地点、存放类型、利率水平。公司结合生产经营现金流情况、货币资金存放的具体情况、未来资金支出安排与偿债计划、公司融资渠道等，评估公司的偿债能力，深交所要求年审会计师进行核查并发表明确意见。

进一步的分析表明，中国投资低迷的基础是工业投资不足。从现象上看，中国投资近几年的回落，是房地产投资和基础设施投资回落的结果。经济现象给市场的直观感受是：楼市调控和城镇化进程本身的放缓，带来了房地产行业投资增速的回落；由于基建投资主要是政府主导投资，政府投融资能力受制于债务问题，导致了基建投资的回落。从投资增长速度变化看，中国整体投资增速远低于楼市和基建投资增速。可见，中国当前的投资低迷态势，主要是具有顺周期特征的工业投资低迷的结果。

险资入市有利于推动资本市场平稳健康发展首先，险资给资本市场带来大规模增量资金，增强市场上升动力。当前，我国保险资金投资权益类资产的比例上限已提高至30%。截至2019年一季度末，我国保险资金规模为17.06万亿元，投向股票和证券投资基金的金额约为2.11万亿元，占比为12.39%；2018年末保险资金规模为16.4万亿元，投向股票和证券投资基金的金额约为1.92万亿元，占比为11.71%。险资入市资金增加了约1900亿元，占比提高了0.58个百分点。未来若进一步提升险资投资权益类资产的比例上限，将能够给资本市场带来大规模增量资金。当然，增量资金并不会短期内到位，而是有个循序渐进的过程。当前险资的权益投资已经更趋理性，在2018年放宽权益投资比例后并没有出现短期激进投资的行为。未来险资在权益类资产的实际投资比例情况，既取决于相关的制度改革，也受资本市场给险资带来收益情况的影响。

优居客官网显示，其在建装修项目有5000多个。目前，优居客实控人已失联，不少业主到警方报案。运作不规范滋生金融风险，损害消费者权益优居客承诺给予装修业主免息贷款，并鼓励业主从银行多申请贷款金额。据记者调查，所谓的“免息”实际上由平台贴息，有的贷款年利率为8.3%，有的为6%。据了解，这个利率在消费金融领域相对较低，不少消费金融贷款利率都超过10%。