Abstract: Systems and methods for the categorization of websites are presented. A website is categorized using one or a combination of its domain name and its web page content. The domain name is tokenized, and the tokens compared to categories in a category structure to determine probabilities that the token belongs to each category. Combinations of tokens are similarly compared to the categories. A category may be determined with reference to a vector space in which a training set of websites having known categories is converted according to a methodology into reference vectors containing keyword frequencies. A target website is converted to a target vector using the same methodology, and a distance score of the target vector to each reference vector is calculated. The website represented by the target vector is assigned the category of the reference vector having the lowest distance score.

Abstract: Systems and methods for the categorization of websites are presented. A website is categorized using one or a combination of its domain name and its web page content. The domain name is tokenized, and the tokens compared to categories in a category structure to determine probabilities that the token belongs to each category. Combinations of tokens are similarly compared to the categories. A category may be determined with reference to a vector space in which a training set of websites having known categories is converted according to a methodology into reference vectors containing keyword frequencies. A target website is converted to a target vector using the same methodology, and a distance score of the target vector to each reference vector is calculated. The website represented by the target vector is assigned the category of the reference vector having the lowest distance score.

Abstract: Systems and methods for the categorization of websites are presented. A website is categorized using one or a combination of its domain name and its web page content. The domain name is tokenized, and the tokens compared to categories in a category structure to determine probabilities that the token belongs to each category. Combinations of tokens are similarly compared to the categories. A category may be determined with reference to a vector space in which a training set of websites having known categories is converted according to a methodology into reference vectors containing keyword frequencies. A target website is converted to a target vector using the same methodology, and a distance score of the target vector to each reference vector is calculated. The website represented by the target vector is assigned the category of the reference vector having the lowest distance score.

Abstract: A combination incandescent/fluorescent lighting system is shown that gives an efficient, high quality light. An incandescent lamp in series with the fluorescent lamp is used as a ballast. An auxiliary starting circuit is used to create a high voltage for starting circuit flow through the fluorescent lamp. After current flow through the fluorescent lamp has started, the auxiliary circuit has essentially no effect on the remaining operation of the lighting system. A reversing switch for the fluorescent lamp is operable with an ON/OFF switch for reversing current flow through the fluorescent lamp each time the lighting system is cycled through ON/OFF. This prevents the light inside of the fluorescent lamp from migrating to one end thereof. The circuit is designed for efficient operation from an auxiliary source of power, such as the wind or sun, either singularly or in combination with a standard AC power source.

Abstract: The invention is an over voltage protector for A.C. power. A single transistor is connected through a diode bridge to one line of the input power. The other side of the bridge network is connected through an output transformer to a common input and output. The base of the transistor is connected to a voltage source which may be provided by either a rectified input signal or a constantly charged capacitor located between the base and the emitter. A Zener diode connected through a diode bridge to the secondary winding of the output transformer is also connected across the base to an emitter. The breakdown voltage of the Zener diode controls the maximum voltage between the base to emitter, which consequently controls the A.C. output voltage.

Abstract: An over voltage protector for AC power. Transistors are connected across the power line in a common base configuration with the transistor outputs being connected to the primary winding of an output transformer. A secondary winding of the output transformer in series with a zener diode is connected to the base of the transistors to prevent the output voltage across the primary winding from exceeding a predetermined level, positive or negative. A diode bridge allows current to flow in only one direction through the zener diode. Additional turns on the primary winding with a tap connection also provide voltage regulation.