Fujitsu Corporation

Tetsuyoshi Shiota

Izumi Nitta

Daisuke Fukuda

Satoko Iwakura

Shunichi Watanabe

Kenichi Kawasaki

Hiroshi Chiba

Tetsutaro Hashimoto

Masaru Todoriki

Katsuhito Nakazawa

Tomoko Nagano

Hidemichi Fujii

Koichi Nakayama

A machine learning method includes acquiring data including attendance records of employees and information indicating which employee has taken a leave of absence from work, in response to determining that a first employee of the employees has not taken a leave of absence in accordance with the data, generating a first tensor on a basis of an attendance record of the first employee and parameters associated with elements included in the attendance record, in response to determining that a second employee of the employees has taken a leave of absence in accordance with the data, modifying the parameters, and generating a second tensor on a basis of an attendance record of the second employee and the modified parameters, and generating a model by machine learning based on the first tensor and the second tensor.

Machine learning method

A learning device receives, for each target, learning data that represents the source of generation of a tensor including a plurality of elements which multi-dimensionally represent the features of the target over a period of time set in advance. When the target satisfies a condition set in advance, the learning device identifies the period of time corresponding to the condition in the learning data. Subsequently, the learning device generates a weighted tensor corresponding to the learning data that is at least either before or after the concerned period of time.

Computer-readable recording medium and learning data generation method

An information presentation device includes a processor that executes a procedure. The procedure includes: for respective decision making entities, calculating assessment indexes of a plurality of respective assessment criteria, based on characteristic information representing a characteristic of each of the decision making entities; selecting, from the plurality of decision making entities, at least one decision making entity having a characteristic similar to that of an information presentation target decision making entity that is a target of information presentation, based on an assessment index calculated for each of the decision making entities; and acquiring and presenting information related to decision making by the selected decision making entity from a storage section storing information related to decision making for each of the plurality of decision making entities.

Assessing and selecting decision making entities for acquiring and presenting information

A voltage regulator circuit includes: a first pulse generator configured to output a pulse whose level remains unchanged when an input signal of a first circuit is in a first period, and whose level changes from a second level to a first level when an edge of the input signal of the first circuit is detected after the first period; a second pulse generator configured to output a pulse from a time that the pulse output by the first pulse generator becomes the first level until a second period elapses; a first field-effect transistor having a source connected to a power supply potential node, and a drain connected to a power supply potential terminal of the first circuit; and a first switch configured to cause a potential at a gate of the first field-effect transistor to be a first potential.

Voltage regulator circuit including pulse generators

A semiconductor device includes: a first power line to supply a first voltage to a plurality of internal circuits; a second power line to supply the first voltage to the plurality of internal circuits; a first switch provided between said first power line and each of the plurality of internal circuits; a second switch provided between said second power line and each of the plurality of internal circuits; and a control circuit to control the first switch of a second internal circuit included in the plurality of the internal circuits based on the amounts of noise and voltage drop at power-on in a first circuit included in the plurality of internal circuits.

Semiconductor device

A series regulator circuit includes one or more transistors each having a channel with one end coupled to an input node to receive an input voltage and another end coupled to an output node, and having a control node to receive a control voltage, a control circuit configured to adjust the control voltage in response to a voltage of the output node such that the voltage of the output node is set equal to a voltage setting selected by an output voltage setting signal, and a switch circuit configured to change an operating condition, excluding the control voltage, of the one or more transistors in conjunction with a change in the voltage setting of the output node.

Series regulator circuit and semiconductor integrated circuit

A multi-processing system includes: a selecting unit that selects a clock frequency for each processor chips based on lot-to-lot variation thereof; a calculating unit that calculates chip performance of the processor chips operating at the clock frequencies; a judging unit that judges whether a total of chip performance of the processor chips is equal to or higher than a predetermined system performance; and a setting unit that sets the clock frequencies to the processor chips when the total is equal to or higher than the predetermined system performance.

Multi-processing system distributing workload optimally during operation

An electronic device includes: an integrated circuit having a first circuit part, a second circuit part, a first power source line of the first circuit part, a second power source line of the second circuit part, and a coupling switch coupling the first power source line and the second power source line; a power source supply part which generates a power source to be supplied to the first and second circuit parts and which has a power source supply control circuit controlling the supply of power source to the second circuit part; and a power source control part that controls the power source supply control circuit and the coupling switch, wherein the power source control part controls the power source supply control circuit so as to supply a power source in accordance with the operating state of the second circuit part and closes the coupling switch.

Electronic device having multi-power source integrated circuit

A semiconductor circuit includes an internal circuit of plural transistors formed in a well of semiconductor substrate and, for each transistor, a threshold level indicator voltage generating circuit which detects a threshold level of the respective one of the plurality of transistors, a control signal generating circuit which generates a control signal in accordance with the threshold level detected by the threshold level indicator voltage generating circuit and a switching circuit responsive to a received control signal for switching to a designated one of plural power supplies of respective, different voltages for connection to the well. The switching circuit is controlled in accordance with the detected threshold level, so that the well is connected to an appropriate power supply. Any variation in the threshold level thereby is corrected since the well potential is controlled to a proper level so that a desired threshold level is obtained, for each of the plural transistors.

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Kawasaki, Japan

Tetsuyoshi Shiota