Abstract: Alight emitting diode (LED) filament lamp with a variable color temperature includes a lamp cap, a mounting piece connected to the lamp cap, a casing connected to the mounting piece, a stem arranged in the casing, an LED filament arranged on the stem, a dual in-line package (DIP) switch connected to the stem, and a driving power supply connected to the DIP switch. The LED filament includes a substrate, a first pin arranged at one end of the substrate, a second pin arranged at the other end of the substrate. The LED filament is of an integral structure. Through the arrangement of the DIP switch or a control switch, the first pin and the second pin can switch a positive pole or a negative pole of an output terminal of the driving power supply, thereby realizing switching of different color temperatures.

Abstract: A method of identifying topics which a user requires help with when using a software program is described. For each of a plurality of help documents, the help document is associated with a set of topics and their relative prevalence within the help document. User access to the help documents is tracked during use of the software program. Topics in relation to which help was required during use of the software program are identified based on an amount of access to one or more of the help documents and the relative prevalence of topics within the accessed help documents.

Abstract: A method of identifying topics which a user requires help with when using a software program is described. For each of a plurality of help documents, the help document is associated with a set of topics and their relative prevalence within the help document. User access to the help documents is tracked during use of the software program. Topics in relation to which help was required during use of the software program are identified based on an amount of access to one or more of the help documents and the relative prevalence of topics within the accessed help documents.