title: Learning to extract geographic information from internet router hostnames

authors: Luckie, Matthew John

subjects: computer science

abstract: Geolocating Internet routers is a long-standing and notoriously difficult challenge, and current solutions lack the accuracy and adaptability to yield reliable results. We revisit this problem, designing a solution capable of accurately and comprehensively extracting geographic information that network operators embed into router interface hostnames. We train our system using dictionaries that map geographic codes to known locations, and constrain inferences with delay measurements conducted from a distributed set of vantage points. While most operators use known geographic codes, some devise their own mnemonic codes for locations, which our system also extracts and interprets. We evaluate our system on Internet-wide topology datasets, automatically learning regular expressions (regexes) for 1023 different domain suffixes with IPv4 routers, and 241 different domain suffixes with IPv6 routers. We received ground truth from operators of 13 domain suffixes, all of whom confirmed the correctness of our learned regexes, and that our system correctly interpreted 78.6% of the custom geographic codes. For these 13 suffixes, our solution more accurately extracts and interprets geographic information than the previous state-of-the-art, correctly geolocating 94.0% of router hostnames with a geohint compared to DRoP (56.6%) and HLOC (73.1%). This work advances the ability of researchers and network operators to characterize the location of critical Internet infrastructure, a foundational building block of network performance, security, and resilience analysis. We release the source code of our system and our inferred regexes.

text: Learning to extract geographic information from internet router hostnames Geolocating Internet routers is a long-standing and notoriously difficult challenge, and current solutions lack the accuracy and adaptability to yield reliable results. We revisit this problem, designing a solution capable of accurately and comprehensively extracting geographic information that network operators embed into router interface hostnames. We train our system using dictionaries that map geographic codes to known locations, and constrain inferences with delay measurements conducted from a distributed set of vantage points. While most operators use known geographic codes, some devise their own mnemonic codes for locations, which our system also extracts and interprets. We evaluate our system on Internet-wide topology datasets, automatically learning regular expressions (regexes) for 1023 different domain suffixes with IPv4 routers, and 241 different domain suffixes with IPv6 routers. We received ground truth from operators of 13 domain suffixes, all of whom confirmed the correctness of our learned regexes, and that our system correctly interpreted 78.6% of the custom geographic codes. For these 13 suffixes, our solution more accurately extracts and interprets geographic information than the previous state-of-the-art, correctly geolocating 94.0% of router hostnames with a geohint compared to DRoP (56.6%) and HLOC (73.1%). This work advances the ability of researchers and network operators to characterize the location of critical Internet infrastructure, a foundational building block of network performance, security, and resilience analysis. We release the source code of our system and our inferred regexes.

year: 2021

title: “They expect me to be caring”: The challenges of claiming an androgynous leadership approach

authors: Hardaker, Julie

abstract: Purpose: This study aims to explore the experience of performing androgynous leadership approaches by New Zealand women leaders within the context of everyday conflict situations. Design/methodology/approach: The research question “How do women leaders experience gender in conflict situations?” was explored through the facilitation of 4 focus groups with 19 senior female leaders in New Zealand. Poststructural discourse analysis was used to explore how participants negotiated positions of power within their environments and in accordance with competing gendered discourses. Findings: Participants described taking a flexible, balanced, androgynous leadership approach to managing conflict situations. While the expectations to be “empathetic”, “sympathetic”, “gentle”, “nurturing” and “caring” resonated with the participants preferred approach, they remained firm that if conflict persisted, they would “cross the line” and adopt stereotypically masculine behaviours to resolve the situation. However, participants describe that when perceived to be crossing the line from feminine to masculine approaches, they experienced significant backlash. This demonstrates the tensions between the approaches women leaders would like to take in managing conflict and the experiences of doing so within a prescriptively gendered organisational context. Originality/value: This research contributes to a gap which exists in understanding how gender is experienced from the viewpoint of the woman leader. This research presents a nuanced view of gendered leadership as a contested ground, rather than a series of strategic choices. Despite an increase in the acceptance of women into leadership positions, the authors seemingly remain bound by what is considered a “feminine” leader.

text: “They expect me to be caring”: The challenges of claiming an androgynous leadership approach Purpose: This study aims to explore the experience of performing androgynous leadership approaches by New Zealand women leaders within the context of everyday conflict situations. Design/methodology/approach: The research question “How do women leaders experience gender in conflict situations?” was explored through the facilitation of 4 focus groups with 19 senior female leaders in New Zealand. Poststructural discourse analysis was used to explore how participants negotiated positions of power within their environments and in accordance with competing gendered discourses. Findings: Participants described taking a flexible, balanced, androgynous leadership approach to managing conflict situations. While the expectations to be “empathetic”, “sympathetic”, “gentle”, “nurturing” and “caring” resonated with the participants preferred approach, they remained firm that if conflict persisted, they would “cross the line” and adopt stereotypically masculine behaviours to resolve the situation. However, participants describe that when perceived to be crossing the line from feminine to masculine approaches, they experienced significant backlash. This demonstrates the tensions between the approaches women leaders would like to take in managing conflict and the experiences of doing so within a prescriptively gendered organisational context. Originality/value: This research contributes to a gap which exists in understanding how gender is experienced from the viewpoint of the woman leader. This research presents a nuanced view of gendered leadership as a contested ground, rather than a series of strategic choices. Despite an increase in the acceptance of women into leadership positions, the authors seemingly remain bound by what is considered a “feminine” leader.

year: 2023-03-10

title: Te Kāuta

authors: Roa, Raukura

subjects: Kōrero paki

abstract: He rite tonu tā mātou hokihoki ki te take o Pirongia maunga, ki te tutungi i te ahi kā i Pūrekireki Marae. Ia wā ka hoki mātou ki tēnei o ngā marae, ka hīkaka taku ngākau, i te mea, ko taku mahi i reira, he tiaki ahi. Ao noa, pō noa, ko au te kaiwhakatutungi i te ahi o te kāuta, kei kewa. Ko te ahi o te kāuta o Pūrekireki marae, he ahi nui, he ahi kaitā. E ono tāngata pea ka uru ki te rua o te ahi nei. Nō reira, ko taku mahi i te rā, he kohi rākau i waho, he tapahi wahie, he whakamaroke anō hoki i te wahie, inā mākū i te ua. I ngā pō, kia hoki rā anō te iwi ki te moe, ko tāku, he noho ki roto i te kāuta me te tutungi ahi, kia wera tonu ai te wai mō āpōpō. Kei pōhēhē mai, he mahi mokemoke tēnei! Ehara! Ia pō, ka noho mai aku kuia ki taku taha ki te pahupahu. He nui ngā akoranga me ngā mātauranga i tuku iho mai ki a au i roto i tērā kāuta, i te taha o tērā ahi. Me uaua ka kitea tēnei momo ahi kaitā i ngā marae i ēnei rā. Kāore e whakaaengia ana e ngā ture Pākehā ngā ahi kaitā, pēnei nei te rahi, i roto i ngā kāuta o ngā marae; ‘Health and Safety Standards’ tā rātou i whakatau ai. Nō reira, i karangangia e taku pāpā tētehi hui ki te marae kia wānangahia te whakahōutanga o tō mātou kāuta. Nō taku rongotanga ake i te kaupapa o tēnei hui, ka tangi taku ngākau ki tō mātou kāuta. Nō reira, i whakarite ahau kia haere i tana taha.

text: Te Kāuta He rite tonu tā mātou hokihoki ki te take o Pirongia maunga, ki te tutungi i te ahi kā i Pūrekireki Marae. Ia wā ka hoki mātou ki tēnei o ngā marae, ka hīkaka taku ngākau, i te mea, ko taku mahi i reira, he tiaki ahi. Ao noa, pō noa, ko au te kaiwhakatutungi i te ahi o te kāuta, kei kewa. Ko te ahi o te kāuta o Pūrekireki marae, he ahi nui, he ahi kaitā. E ono tāngata pea ka uru ki te rua o te ahi nei. Nō reira, ko taku mahi i te rā, he kohi rākau i waho, he tapahi wahie, he whakamaroke anō hoki i te wahie, inā mākū i te ua. I ngā pō, kia hoki rā anō te iwi ki te moe, ko tāku, he noho ki roto i te kāuta me te tutungi ahi, kia wera tonu ai te wai mō āpōpō. Kei pōhēhē mai, he mahi mokemoke tēnei! Ehara! Ia pō, ka noho mai aku kuia ki taku taha ki te pahupahu. He nui ngā akoranga me ngā mātauranga i tuku iho mai ki a au i roto i tērā kāuta, i te taha o tērā ahi. Me uaua ka kitea tēnei momo ahi kaitā i ngā marae i ēnei rā. Kāore e whakaaengia ana e ngā ture Pākehā ngā ahi kaitā, pēnei nei te rahi, i roto i ngā kāuta o ngā marae; ‘Health and Safety Standards’ tā rātou i whakatau ai. Nō reira, i karangangia e taku pāpā tētehi hui ki te marae kia wānangahia te whakahōutanga o tō mātou kāuta. Nō taku rongotanga ake i te kaupapa o tēnei hui, ka tangi taku ngākau ki tō mātou kāuta. Nō reira, i whakarite ahau kia haere i tana taha.

year: 2016